./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.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.vis_QF_BV_rotate32.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 d551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 00:54:18,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 00:54:18,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 00:54:18,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 00:54:18,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 00:54:18,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 00:54:18,320 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 00:54:18,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 00:54:18,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 00:54:18,322 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 00:54:18,322 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 00:54:18,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 00:54:18,324 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 00:54:18,324 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 00:54:18,325 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 00:54:18,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 00:54:18,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 00:54:18,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 00:54:18,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 00:54:18,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 00:54:18,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 00:54:18,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 00:54:18,331 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 00:54:18,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 00:54:18,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 00:54:18,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 00:54:18,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 00:54:18,332 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 00:54:18,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 00:54:18,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 00:54:18,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 00:54:18,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 00:54:18,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 00:54:18,333 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 00:54:18,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 00:54:18,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 00:54:18,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 00:54:18,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 00:54:18,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 00:54:18,334 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de [2024-11-12 00:54:18,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 00:54:18,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 00:54:18,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 00:54:18,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 00:54:18,652 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 00:54:18,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-11-12 00:54:20,133 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 00:54:20,342 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 00:54:20,343 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-11-12 00:54:20,357 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb63ca9bc/2c647ea20c7e4e618093b7efdfe1d7fc/FLAGde7e07344 [2024-11-12 00:54:20,372 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb63ca9bc/2c647ea20c7e4e618093b7efdfe1d7fc [2024-11-12 00:54:20,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 00:54:20,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 00:54:20,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 00:54:20,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 00:54:20,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 00:54:20,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c490713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20, skipping insertion in model container [2024-11-12 00:54:20,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,412 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 00:54:20,594 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_rotate32.c[1258,1271] [2024-11-12 00:54:20,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 00:54:20,669 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 00:54:20,678 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_rotate32.c[1258,1271] [2024-11-12 00:54:20,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 00:54:20,744 INFO L204 MainTranslator]: Completed translation [2024-11-12 00:54:20,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20 WrapperNode [2024-11-12 00:54:20,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 00:54:20,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 00:54:20,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 00:54:20,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 00:54:20,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,823 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 319 [2024-11-12 00:54:20,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 00:54:20,825 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 00:54:20,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 00:54:20,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 00:54:20,836 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,845 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,871 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]. [2024-11-12 00:54:20,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 00:54:20,922 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 00:54:20,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 00:54:20,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 00:54:20,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (1/1) ... [2024-11-12 00:54:20,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 00:54:20,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:54:20,964 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) [2024-11-12 00:54:20,969 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 [2024-11-12 00:54:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 00:54:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 00:54:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 00:54:21,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 00:54:21,121 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 00:54:21,123 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 00:54:21,793 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-11-12 00:54:21,793 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 00:54:21,808 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 00:54:21,808 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 00:54:21,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:21 BoogieIcfgContainer [2024-11-12 00:54:21,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 00:54:21,812 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 00:54:21,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 00:54:21,816 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 00:54:21,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:54:20" (1/3) ... [2024-11-12 00:54:21,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cedd2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:21, skipping insertion in model container [2024-11-12 00:54:21,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:20" (2/3) ... [2024-11-12 00:54:21,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cedd2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:21, skipping insertion in model container [2024-11-12 00:54:21,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:21" (3/3) ... [2024-11-12 00:54:21,819 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-11-12 00:54:21,842 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 00:54:21,842 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 00:54:21,916 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 00:54:21,921 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;@51c95c13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 00:54:21,922 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 00:54:21,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 89 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:21,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-12 00:54:21,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:21,932 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:21,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:21,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:21,939 INFO L85 PathProgramCache]: Analyzing trace with hash -829897697, now seen corresponding path program 1 times [2024-11-12 00:54:21,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:21,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336638624] [2024-11-12 00:54:21,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:21,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:22,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:22,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336638624] [2024-11-12 00:54:22,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336638624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:22,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:22,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 00:54:22,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442745328] [2024-11-12 00:54:22,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:22,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 00:54:22,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:22,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 00:54:22,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 00:54:22,479 INFO L87 Difference]: Start difference. First operand has 90 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 89 states have internal predecessors, (131), 0 states have call successors, (0), 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 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:22,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:22,533 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2024-11-12 00:54:22,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 00:54:22,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2024-11-12 00:54:22,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:22,543 INFO L225 Difference]: With dead ends: 169 [2024-11-12 00:54:22,543 INFO L226 Difference]: Without dead ends: 89 [2024-11-12 00:54:22,545 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 [2024-11-12 00:54:22,548 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 369 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 [2024-11-12 00:54:22,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 369 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:22,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-12 00:54:22,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-12 00:54:22,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.4659090909090908) internal successors, (129), 88 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:22,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions. [2024-11-12 00:54:22,588 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 13 [2024-11-12 00:54:22,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:22,588 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 129 transitions. [2024-11-12 00:54:22,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:22,589 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions. [2024-11-12 00:54:22,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-12 00:54:22,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:22,590 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:22,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 00:54:22,590 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:22,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:22,591 INFO L85 PathProgramCache]: Analyzing trace with hash 44670374, now seen corresponding path program 1 times [2024-11-12 00:54:22,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:22,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850186546] [2024-11-12 00:54:22,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:22,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:22,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:22,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850186546] [2024-11-12 00:54:22,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850186546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:22,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:22,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 00:54:22,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177514709] [2024-11-12 00:54:22,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:22,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 00:54:22,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:22,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 00:54:22,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 00:54:22,714 INFO L87 Difference]: Start difference. First operand 89 states and 129 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:22,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:22,757 INFO L93 Difference]: Finished difference Result 170 states and 247 transitions. [2024-11-12 00:54:22,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 00:54:22,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2024-11-12 00:54:22,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:22,760 INFO L225 Difference]: With dead ends: 170 [2024-11-12 00:54:22,760 INFO L226 Difference]: Without dead ends: 91 [2024-11-12 00:54:22,761 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 [2024-11-12 00:54:22,762 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 365 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 [2024-11-12 00:54:22,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 365 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-12 00:54:22,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-12 00:54:22,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.4555555555555555) internal successors, (131), 90 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2024-11-12 00:54:22,772 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 14 [2024-11-12 00:54:22,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:22,773 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2024-11-12 00:54:22,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:22,773 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2024-11-12 00:54:22,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-12 00:54:22,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:22,774 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:54:22,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 00:54:22,774 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:22,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:22,775 INFO L85 PathProgramCache]: Analyzing trace with hash 286815704, now seen corresponding path program 1 times [2024-11-12 00:54:22,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:22,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442487029] [2024-11-12 00:54:22,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:22,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:23,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:23,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:23,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442487029] [2024-11-12 00:54:23,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442487029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:23,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:23,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 00:54:23,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966220354] [2024-11-12 00:54:23,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:23,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 00:54:23,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:23,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 00:54:23,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:54:23,113 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:23,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:23,160 INFO L93 Difference]: Finished difference Result 174 states and 251 transitions. [2024-11-12 00:54:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 00:54:23,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2024-11-12 00:54:23,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:23,162 INFO L225 Difference]: With dead ends: 174 [2024-11-12 00:54:23,162 INFO L226 Difference]: Without dead ends: 93 [2024-11-12 00:54:23,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:54:23,164 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 8 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:23,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 476 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:23,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-12 00:54:23,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-12 00:54:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4456521739130435) internal successors, (133), 92 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:23,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-11-12 00:54:23,171 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 15 [2024-11-12 00:54:23,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:23,171 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-11-12 00:54:23,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:23,172 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-11-12 00:54:23,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-12 00:54:23,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:23,176 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:23,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 00:54:23,177 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:23,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:23,177 INFO L85 PathProgramCache]: Analyzing trace with hash -540684496, now seen corresponding path program 1 times [2024-11-12 00:54:23,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:23,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878869730] [2024-11-12 00:54:23,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:23,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:23,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:23,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:23,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878869730] [2024-11-12 00:54:23,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878869730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 00:54:23,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716987672] [2024-11-12 00:54:23,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:23,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:54:23,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:54:23,800 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) [2024-11-12 00:54:23,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 00:54:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:23,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-12 00:54:24,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 00:54:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:24,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 00:54:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:25,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716987672] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 00:54:25,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 00:54:25,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 10] total 21 [2024-11-12 00:54:25,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933774805] [2024-11-12 00:54:25,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 00:54:25,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-12 00:54:25,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:25,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-12 00:54:25,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:54:25,109 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 21 states, 21 states have (on average 7.095238095238095) internal successors, (149), 21 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:25,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:25,368 INFO L93 Difference]: Finished difference Result 177 states and 254 transitions. [2024-11-12 00:54:25,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 00:54:25,369 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.095238095238095) internal successors, (149), 21 states have internal predecessors, (149), 0 states have call successors, (0), 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 54 [2024-11-12 00:54:25,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:25,370 INFO L225 Difference]: With dead ends: 177 [2024-11-12 00:54:25,370 INFO L226 Difference]: Without dead ends: 96 [2024-11-12 00:54:25,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:54:25,372 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 261 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:25,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 713 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:25,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-12 00:54:25,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2024-11-12 00:54:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.4408602150537635) internal successors, (134), 93 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2024-11-12 00:54:25,378 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 54 [2024-11-12 00:54:25,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:25,379 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2024-11-12 00:54:25,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.095238095238095) internal successors, (149), 21 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:25,379 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2024-11-12 00:54:25,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-12 00:54:25,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:25,381 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:25,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 00:54:25,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:54:25,586 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:25,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:25,586 INFO L85 PathProgramCache]: Analyzing trace with hash -407762765, now seen corresponding path program 1 times [2024-11-12 00:54:25,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:25,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467151729] [2024-11-12 00:54:25,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:25,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:27,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:27,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467151729] [2024-11-12 00:54:27,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467151729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:27,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:27,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-12 00:54:27,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120991467] [2024-11-12 00:54:27,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:27,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-12 00:54:27,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:27,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-12 00:54:27,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:54:27,021 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:27,289 INFO L93 Difference]: Finished difference Result 326 states and 471 transitions. [2024-11-12 00:54:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-12 00:54:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-12 00:54:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:27,293 INFO L225 Difference]: With dead ends: 326 [2024-11-12 00:54:27,295 INFO L226 Difference]: Without dead ends: 242 [2024-11-12 00:54:27,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:54:27,296 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 237 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:27,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1439 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:27,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-12 00:54:27,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 151. [2024-11-12 00:54:27,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.4333333333333333) internal successors, (215), 150 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:27,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 215 transitions. [2024-11-12 00:54:27,316 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 215 transitions. Word has length 55 [2024-11-12 00:54:27,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:27,316 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 215 transitions. [2024-11-12 00:54:27,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:27,317 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 215 transitions. [2024-11-12 00:54:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-12 00:54:27,318 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:27,318 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:27,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 00:54:27,319 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:27,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:27,319 INFO L85 PathProgramCache]: Analyzing trace with hash 905572452, now seen corresponding path program 1 times [2024-11-12 00:54:27,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:27,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495963014] [2024-11-12 00:54:27,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:27,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:28,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:28,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495963014] [2024-11-12 00:54:28,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495963014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:28,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:28,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-12 00:54:28,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009674122] [2024-11-12 00:54:28,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:28,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 00:54:28,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:28,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 00:54:28,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-12 00:54:28,624 INFO L87 Difference]: Start difference. First operand 151 states and 215 transitions. Second operand has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:29,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:29,003 INFO L93 Difference]: Finished difference Result 437 states and 633 transitions. [2024-11-12 00:54:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-12 00:54:29,004 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-12 00:54:29,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:29,006 INFO L225 Difference]: With dead ends: 437 [2024-11-12 00:54:29,006 INFO L226 Difference]: Without dead ends: 326 [2024-11-12 00:54:29,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-12 00:54:29,010 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 199 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:29,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1346 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 00:54:29,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-12 00:54:29,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 205. [2024-11-12 00:54:29,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.4411764705882353) internal successors, (294), 204 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:29,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 294 transitions. [2024-11-12 00:54:29,035 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 294 transitions. Word has length 56 [2024-11-12 00:54:29,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:29,035 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 294 transitions. [2024-11-12 00:54:29,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:29,036 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 294 transitions. [2024-11-12 00:54:29,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-12 00:54:29,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:29,038 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:29,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 00:54:29,038 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:29,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:29,038 INFO L85 PathProgramCache]: Analyzing trace with hash 970691691, now seen corresponding path program 1 times [2024-11-12 00:54:29,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:29,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349986852] [2024-11-12 00:54:29,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:29,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:30,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:30,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:30,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349986852] [2024-11-12 00:54:30,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349986852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:30,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:30,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-12 00:54:30,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766259017] [2024-11-12 00:54:30,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:30,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 00:54:30,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:30,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 00:54:30,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-12 00:54:30,210 INFO L87 Difference]: Start difference. First operand 205 states and 294 transitions. Second operand has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:30,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:30,568 INFO L93 Difference]: Finished difference Result 536 states and 778 transitions. [2024-11-12 00:54:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-12 00:54:30,569 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-12 00:54:30,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:30,572 INFO L225 Difference]: With dead ends: 536 [2024-11-12 00:54:30,572 INFO L226 Difference]: Without dead ends: 413 [2024-11-12 00:54:30,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-12 00:54:30,574 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 198 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:30,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1264 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 00:54:30,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-12 00:54:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 259. [2024-11-12 00:54:30,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.445736434108527) internal successors, (373), 258 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:30,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 373 transitions. [2024-11-12 00:54:30,596 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 373 transitions. Word has length 56 [2024-11-12 00:54:30,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:30,596 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 373 transitions. [2024-11-12 00:54:30,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:30,597 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 373 transitions. [2024-11-12 00:54:30,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-12 00:54:30,598 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:30,598 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:30,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 00:54:30,599 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:30,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:30,603 INFO L85 PathProgramCache]: Analyzing trace with hash -874229070, now seen corresponding path program 1 times [2024-11-12 00:54:30,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:30,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916837246] [2024-11-12 00:54:30,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:30,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:31,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:31,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:31,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916837246] [2024-11-12 00:54:31,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916837246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:31,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:31,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-12 00:54:31,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17664210] [2024-11-12 00:54:31,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:31,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 00:54:31,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:31,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 00:54:31,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-12 00:54:31,262 INFO L87 Difference]: Start difference. First operand 259 states and 373 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:31,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:31,538 INFO L93 Difference]: Finished difference Result 562 states and 819 transitions. [2024-11-12 00:54:31,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 00:54:31,539 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-12 00:54:31,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:31,541 INFO L225 Difference]: With dead ends: 562 [2024-11-12 00:54:31,541 INFO L226 Difference]: Without dead ends: 478 [2024-11-12 00:54:31,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-12 00:54:31,542 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 219 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:31,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1617 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:31,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-12 00:54:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 303. [2024-11-12 00:54:31,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.4536423841059603) internal successors, (439), 302 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:31,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 439 transitions. [2024-11-12 00:54:31,551 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 439 transitions. Word has length 56 [2024-11-12 00:54:31,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:31,552 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 439 transitions. [2024-11-12 00:54:31,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:31,552 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 439 transitions. [2024-11-12 00:54:31,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-12 00:54:31,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:31,553 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:31,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 00:54:31,554 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:31,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:31,554 INFO L85 PathProgramCache]: Analyzing trace with hash -21587143, now seen corresponding path program 1 times [2024-11-12 00:54:31,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:31,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874767315] [2024-11-12 00:54:31,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:31,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:32,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:32,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:32,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874767315] [2024-11-12 00:54:32,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874767315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:32,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:32,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-12 00:54:32,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391577852] [2024-11-12 00:54:32,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:32,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-12 00:54:32,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:32,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-12 00:54:32,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:54:32,673 INFO L87 Difference]: Start difference. First operand 303 states and 439 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:32,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:32,940 INFO L93 Difference]: Finished difference Result 658 states and 960 transitions. [2024-11-12 00:54:32,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-12 00:54:32,940 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-12 00:54:32,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:32,943 INFO L225 Difference]: With dead ends: 658 [2024-11-12 00:54:32,943 INFO L226 Difference]: Without dead ends: 516 [2024-11-12 00:54:32,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:54:32,945 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 163 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:32,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1792 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-12 00:54:32,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 399. [2024-11-12 00:54:32,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 398 states have (on average 1.4597989949748744) internal successors, (581), 398 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:32,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 581 transitions. [2024-11-12 00:54:32,956 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 581 transitions. Word has length 56 [2024-11-12 00:54:32,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:32,956 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 581 transitions. [2024-11-12 00:54:32,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 581 transitions. [2024-11-12 00:54:32,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:32,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:32,958 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:32,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 00:54:32,959 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:32,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:32,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2093742992, now seen corresponding path program 1 times [2024-11-12 00:54:32,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:32,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147802927] [2024-11-12 00:54:32,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:32,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:33,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:33,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:33,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147802927] [2024-11-12 00:54:33,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147802927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:33,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:33,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 00:54:33,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112432070] [2024-11-12 00:54:33,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:33,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 00:54:33,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:33,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 00:54:33,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-12 00:54:33,351 INFO L87 Difference]: Start difference. First operand 399 states and 581 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:33,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:33,399 INFO L93 Difference]: Finished difference Result 697 states and 1017 transitions. [2024-11-12 00:54:33,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 00:54:33,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:33,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:33,402 INFO L225 Difference]: With dead ends: 697 [2024-11-12 00:54:33,402 INFO L226 Difference]: Without dead ends: 461 [2024-11-12 00:54:33,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-12 00:54:33,403 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 59 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:33,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 747 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:33,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-12 00:54:33,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 437. [2024-11-12 00:54:33,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 1.4495412844036697) internal successors, (632), 436 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 632 transitions. [2024-11-12 00:54:33,414 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 632 transitions. Word has length 57 [2024-11-12 00:54:33,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:33,414 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 632 transitions. [2024-11-12 00:54:33,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:33,414 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 632 transitions. [2024-11-12 00:54:33,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:33,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:33,416 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:33,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 00:54:33,416 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:33,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:33,417 INFO L85 PathProgramCache]: Analyzing trace with hash 380642882, now seen corresponding path program 1 times [2024-11-12 00:54:33,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:33,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651962998] [2024-11-12 00:54:33,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:33,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:34,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:34,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:34,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651962998] [2024-11-12 00:54:34,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651962998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:34,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:34,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-12 00:54:34,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112550755] [2024-11-12 00:54:34,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:34,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 00:54:34,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:34,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 00:54:34,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:54:34,415 INFO L87 Difference]: Start difference. First operand 437 states and 632 transitions. Second operand has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:34,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:34,624 INFO L93 Difference]: Finished difference Result 814 states and 1175 transitions. [2024-11-12 00:54:34,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 00:54:34,624 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:34,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:34,628 INFO L225 Difference]: With dead ends: 814 [2024-11-12 00:54:34,628 INFO L226 Difference]: Without dead ends: 644 [2024-11-12 00:54:34,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:54:34,629 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 164 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:34,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1133 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:34,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-12 00:54:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 501. [2024-11-12 00:54:34,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.442) internal successors, (721), 500 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:34,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 721 transitions. [2024-11-12 00:54:34,643 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 721 transitions. Word has length 57 [2024-11-12 00:54:34,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:34,643 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 721 transitions. [2024-11-12 00:54:34,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:34,643 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 721 transitions. [2024-11-12 00:54:34,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:34,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:34,645 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:34,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 00:54:34,645 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:34,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash -102058697, now seen corresponding path program 1 times [2024-11-12 00:54:34,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:34,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389513980] [2024-11-12 00:54:34,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:34,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:35,046 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:35,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:35,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389513980] [2024-11-12 00:54:35,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389513980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:35,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:35,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 00:54:35,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110246565] [2024-11-12 00:54:35,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:35,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 00:54:35,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:35,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 00:54:35,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 00:54:35,048 INFO L87 Difference]: Start difference. First operand 501 states and 721 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:35,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:35,101 INFO L93 Difference]: Finished difference Result 739 states and 1065 transitions. [2024-11-12 00:54:35,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 00:54:35,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:35,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:35,104 INFO L225 Difference]: With dead ends: 739 [2024-11-12 00:54:35,104 INFO L226 Difference]: Without dead ends: 490 [2024-11-12 00:54:35,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 00:54:35,105 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 47 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:35,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 619 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:35,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-12 00:54:35,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 468. [2024-11-12 00:54:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 467 states have (on average 1.430406852248394) internal successors, (668), 467 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:35,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 668 transitions. [2024-11-12 00:54:35,115 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 668 transitions. Word has length 57 [2024-11-12 00:54:35,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:35,116 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 668 transitions. [2024-11-12 00:54:35,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:35,117 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 668 transitions. [2024-11-12 00:54:35,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:35,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:35,119 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:35,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 00:54:35,119 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:35,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:35,120 INFO L85 PathProgramCache]: Analyzing trace with hash 41288972, now seen corresponding path program 1 times [2024-11-12 00:54:35,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:35,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377437495] [2024-11-12 00:54:35,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:35,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:36,257 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:36,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:36,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377437495] [2024-11-12 00:54:36,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377437495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:36,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:36,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-12 00:54:36,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48309951] [2024-11-12 00:54:36,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:36,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-12 00:54:36,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:36,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-12 00:54:36,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:54:36,259 INFO L87 Difference]: Start difference. First operand 468 states and 668 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:36,606 INFO L93 Difference]: Finished difference Result 850 states and 1223 transitions. [2024-11-12 00:54:36,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 00:54:36,607 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:36,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:36,609 INFO L225 Difference]: With dead ends: 850 [2024-11-12 00:54:36,609 INFO L226 Difference]: Without dead ends: 655 [2024-11-12 00:54:36,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:54:36,610 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 184 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:36,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1104 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 00:54:36,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-12 00:54:36,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 487. [2024-11-12 00:54:36,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 486 states have (on average 1.4300411522633745) internal successors, (695), 486 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 695 transitions. [2024-11-12 00:54:36,623 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 695 transitions. Word has length 57 [2024-11-12 00:54:36,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:36,623 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 695 transitions. [2024-11-12 00:54:36,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 695 transitions. [2024-11-12 00:54:36,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:36,626 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:36,626 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:36,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 00:54:36,627 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:36,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:36,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2066607835, now seen corresponding path program 1 times [2024-11-12 00:54:36,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:36,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921903020] [2024-11-12 00:54:36,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:36,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:36,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:36,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921903020] [2024-11-12 00:54:36,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921903020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:36,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:36,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:54:36,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609771320] [2024-11-12 00:54:36,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:36,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:54:36,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:36,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:54:36,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:54:36,803 INFO L87 Difference]: Start difference. First operand 487 states and 695 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:36,842 INFO L93 Difference]: Finished difference Result 775 states and 1100 transitions. [2024-11-12 00:54:36,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 00:54:36,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:36,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:36,845 INFO L225 Difference]: With dead ends: 775 [2024-11-12 00:54:36,845 INFO L226 Difference]: Without dead ends: 488 [2024-11-12 00:54:36,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 00:54:36,847 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 39 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:36,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 591 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:36,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-12 00:54:36,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 484. [2024-11-12 00:54:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.4078674948240166) internal successors, (680), 483 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 680 transitions. [2024-11-12 00:54:36,857 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 680 transitions. Word has length 57 [2024-11-12 00:54:36,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:36,857 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 680 transitions. [2024-11-12 00:54:36,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:36,857 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 680 transitions. [2024-11-12 00:54:36,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:36,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:36,858 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:36,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 00:54:36,859 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:36,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:36,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1805977196, now seen corresponding path program 1 times [2024-11-12 00:54:36,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:36,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049194841] [2024-11-12 00:54:36,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:36,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:37,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:37,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049194841] [2024-11-12 00:54:37,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049194841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:37,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:37,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 00:54:37,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790916916] [2024-11-12 00:54:37,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:37,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 00:54:37,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:37,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 00:54:37,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:54:37,131 INFO L87 Difference]: Start difference. First operand 484 states and 680 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:37,171 INFO L93 Difference]: Finished difference Result 739 states and 1031 transitions. [2024-11-12 00:54:37,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 00:54:37,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:37,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:37,173 INFO L225 Difference]: With dead ends: 739 [2024-11-12 00:54:37,174 INFO L226 Difference]: Without dead ends: 433 [2024-11-12 00:54:37,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:54:37,177 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 31 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:37,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 464 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-12 00:54:37,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 431. [2024-11-12 00:54:37,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.3813953488372093) internal successors, (594), 430 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 594 transitions. [2024-11-12 00:54:37,186 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 594 transitions. Word has length 57 [2024-11-12 00:54:37,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:37,187 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 594 transitions. [2024-11-12 00:54:37,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,187 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 594 transitions. [2024-11-12 00:54:37,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:37,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:37,188 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:37,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 00:54:37,188 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:37,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:37,189 INFO L85 PathProgramCache]: Analyzing trace with hash 173571707, now seen corresponding path program 1 times [2024-11-12 00:54:37,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:37,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652578483] [2024-11-12 00:54:37,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:37,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:37,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:37,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652578483] [2024-11-12 00:54:37,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652578483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:37,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:37,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 00:54:37,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670742123] [2024-11-12 00:54:37,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:37,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 00:54:37,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:37,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 00:54:37,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-12 00:54:37,714 INFO L87 Difference]: Start difference. First operand 431 states and 594 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:37,786 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2024-11-12 00:54:37,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 00:54:37,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:37,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:37,789 INFO L225 Difference]: With dead ends: 661 [2024-11-12 00:54:37,789 INFO L226 Difference]: Without dead ends: 490 [2024-11-12 00:54:37,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-12 00:54:37,791 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 45 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:37,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 847 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:37,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-12 00:54:37,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 470. [2024-11-12 00:54:37,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.3539445628997868) internal successors, (635), 469 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 635 transitions. [2024-11-12 00:54:37,801 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 635 transitions. Word has length 57 [2024-11-12 00:54:37,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:37,801 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 635 transitions. [2024-11-12 00:54:37,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:37,802 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 635 transitions. [2024-11-12 00:54:37,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:37,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:37,803 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:37,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 00:54:37,804 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:37,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:37,804 INFO L85 PathProgramCache]: Analyzing trace with hash 320645826, now seen corresponding path program 1 times [2024-11-12 00:54:37,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:37,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088465959] [2024-11-12 00:54:37,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:37,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:38,348 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:38,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:38,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088465959] [2024-11-12 00:54:38,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088465959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:38,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:38,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 00:54:38,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623805569] [2024-11-12 00:54:38,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:38,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 00:54:38,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:38,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 00:54:38,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-12 00:54:38,351 INFO L87 Difference]: Start difference. First operand 470 states and 635 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:38,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:38,436 INFO L93 Difference]: Finished difference Result 658 states and 899 transitions. [2024-11-12 00:54:38,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 00:54:38,436 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:38,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:38,439 INFO L225 Difference]: With dead ends: 658 [2024-11-12 00:54:38,439 INFO L226 Difference]: Without dead ends: 486 [2024-11-12 00:54:38,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-12 00:54:38,440 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 42 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:38,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 715 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:38,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-12 00:54:38,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 470. [2024-11-12 00:54:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.3454157782515992) internal successors, (631), 469 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 631 transitions. [2024-11-12 00:54:38,451 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 631 transitions. Word has length 57 [2024-11-12 00:54:38,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:38,451 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 631 transitions. [2024-11-12 00:54:38,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 631 transitions. [2024-11-12 00:54:38,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:38,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:38,452 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:38,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 00:54:38,453 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:38,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:38,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2059985381, now seen corresponding path program 1 times [2024-11-12 00:54:38,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:38,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783207075] [2024-11-12 00:54:38,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:38,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:39,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:39,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:39,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783207075] [2024-11-12 00:54:39,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783207075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:39,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:39,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-12 00:54:39,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776405966] [2024-11-12 00:54:39,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:39,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-12 00:54:39,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:39,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-12 00:54:39,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-12 00:54:39,376 INFO L87 Difference]: Start difference. First operand 470 states and 631 transitions. Second operand has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:39,692 INFO L93 Difference]: Finished difference Result 760 states and 1045 transitions. [2024-11-12 00:54:39,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 00:54:39,692 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:39,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:39,695 INFO L225 Difference]: With dead ends: 760 [2024-11-12 00:54:39,695 INFO L226 Difference]: Without dead ends: 613 [2024-11-12 00:54:39,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-12 00:54:39,697 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 105 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:39,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1893 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 00:54:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-12 00:54:39,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 506. [2024-11-12 00:54:39,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.3465346534653466) internal successors, (680), 505 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 680 transitions. [2024-11-12 00:54:39,707 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 680 transitions. Word has length 57 [2024-11-12 00:54:39,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:39,708 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 680 transitions. [2024-11-12 00:54:39,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:39,708 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 680 transitions. [2024-11-12 00:54:39,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:39,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:39,709 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:39,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 00:54:39,709 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:39,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:39,710 INFO L85 PathProgramCache]: Analyzing trace with hash -756314298, now seen corresponding path program 1 times [2024-11-12 00:54:39,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:39,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399904480] [2024-11-12 00:54:39,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:39,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:40,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:40,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399904480] [2024-11-12 00:54:40,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399904480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:40,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:40,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-12 00:54:40,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742570239] [2024-11-12 00:54:40,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:40,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 00:54:40,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:40,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 00:54:40,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-12 00:54:40,379 INFO L87 Difference]: Start difference. First operand 506 states and 680 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:40,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:40,849 INFO L93 Difference]: Finished difference Result 790 states and 1090 transitions. [2024-11-12 00:54:40,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 00:54:40,850 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:40,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:40,853 INFO L225 Difference]: With dead ends: 790 [2024-11-12 00:54:40,853 INFO L226 Difference]: Without dead ends: 652 [2024-11-12 00:54:40,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-12 00:54:40,854 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 341 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:40,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 1513 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 00:54:40,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-11-12 00:54:40,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 515. [2024-11-12 00:54:40,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.3482490272373542) internal successors, (693), 514 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:40,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 693 transitions. [2024-11-12 00:54:40,865 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 693 transitions. Word has length 57 [2024-11-12 00:54:40,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:40,866 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 693 transitions. [2024-11-12 00:54:40,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:40,866 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 693 transitions. [2024-11-12 00:54:40,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:40,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:40,867 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:40,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 00:54:40,868 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:40,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:40,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1966672115, now seen corresponding path program 1 times [2024-11-12 00:54:40,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:40,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333737836] [2024-11-12 00:54:40,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:40,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:42,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:42,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:42,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333737836] [2024-11-12 00:54:42,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333737836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:42,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:42,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-12 00:54:42,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861535871] [2024-11-12 00:54:42,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:42,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 00:54:42,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:42,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 00:54:42,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:54:42,277 INFO L87 Difference]: Start difference. First operand 515 states and 693 transitions. Second operand has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:42,816 INFO L93 Difference]: Finished difference Result 751 states and 1031 transitions. [2024-11-12 00:54:42,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 00:54:42,817 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:42,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:42,819 INFO L225 Difference]: With dead ends: 751 [2024-11-12 00:54:42,819 INFO L226 Difference]: Without dead ends: 597 [2024-11-12 00:54:42,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:54:42,821 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 111 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:42,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1527 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-12 00:54:42,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-12 00:54:42,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 527. [2024-11-12 00:54:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.3517110266159695) internal successors, (711), 526 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 711 transitions. [2024-11-12 00:54:42,836 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 711 transitions. Word has length 57 [2024-11-12 00:54:42,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:42,836 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 711 transitions. [2024-11-12 00:54:42,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:42,837 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 711 transitions. [2024-11-12 00:54:42,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:42,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:42,838 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:42,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 00:54:42,838 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:42,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:42,839 INFO L85 PathProgramCache]: Analyzing trace with hash -7885154, now seen corresponding path program 1 times [2024-11-12 00:54:42,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:42,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983032855] [2024-11-12 00:54:42,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:42,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:43,222 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:43,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:43,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983032855] [2024-11-12 00:54:43,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983032855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:43,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:43,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 00:54:43,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314398985] [2024-11-12 00:54:43,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:43,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 00:54:43,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:43,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 00:54:43,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-12 00:54:43,226 INFO L87 Difference]: Start difference. First operand 527 states and 711 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:43,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:43,501 INFO L93 Difference]: Finished difference Result 821 states and 1125 transitions. [2024-11-12 00:54:43,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 00:54:43,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:43,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:43,504 INFO L225 Difference]: With dead ends: 821 [2024-11-12 00:54:43,504 INFO L226 Difference]: Without dead ends: 667 [2024-11-12 00:54:43,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-12 00:54:43,505 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 180 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:43,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 642 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:43,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-12 00:54:43,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 655. [2024-11-12 00:54:43,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 1.353211009174312) internal successors, (885), 654 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:43,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 885 transitions. [2024-11-12 00:54:43,516 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 885 transitions. Word has length 57 [2024-11-12 00:54:43,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:43,516 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 885 transitions. [2024-11-12 00:54:43,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:43,516 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 885 transitions. [2024-11-12 00:54:43,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 00:54:43,517 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:43,517 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:43,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 00:54:43,518 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:43,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:43,518 INFO L85 PathProgramCache]: Analyzing trace with hash 573916881, now seen corresponding path program 1 times [2024-11-12 00:54:43,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:43,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004370139] [2024-11-12 00:54:43,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:43,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:43,975 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:43,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:43,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004370139] [2024-11-12 00:54:43,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004370139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:43,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:43,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 00:54:43,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901057829] [2024-11-12 00:54:43,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:43,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 00:54:43,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:43,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 00:54:43,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-12 00:54:43,978 INFO L87 Difference]: Start difference. First operand 655 states and 885 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:44,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:44,281 INFO L93 Difference]: Finished difference Result 878 states and 1210 transitions. [2024-11-12 00:54:44,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 00:54:44,282 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-12 00:54:44,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:44,284 INFO L225 Difference]: With dead ends: 878 [2024-11-12 00:54:44,284 INFO L226 Difference]: Without dead ends: 670 [2024-11-12 00:54:44,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-12 00:54:44,286 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 349 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:44,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 637 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 00:54:44,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-12 00:54:44,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 659. [2024-11-12 00:54:44,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3541033434650456) internal successors, (891), 658 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) [2024-11-12 00:54:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 891 transitions. [2024-11-12 00:54:44,301 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 891 transitions. Word has length 57 [2024-11-12 00:54:44,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:44,301 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 891 transitions. [2024-11-12 00:54:44,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 891 transitions. [2024-11-12 00:54:44,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:44,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:44,303 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:44,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 00:54:44,303 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:44,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:44,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1394040018, now seen corresponding path program 1 times [2024-11-12 00:54:44,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:44,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071357896] [2024-11-12 00:54:44,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:44,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:45,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071357896] [2024-11-12 00:54:45,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071357896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:45,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:45,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-12 00:54:45,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518923187] [2024-11-12 00:54:45,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:45,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-12 00:54:45,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:45,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-12 00:54:45,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-12 00:54:45,137 INFO L87 Difference]: Start difference. First operand 659 states and 891 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:45,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:45,338 INFO L93 Difference]: Finished difference Result 1145 states and 1573 transitions. [2024-11-12 00:54:45,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 00:54:45,338 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:45,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:45,341 INFO L225 Difference]: With dead ends: 1145 [2024-11-12 00:54:45,342 INFO L226 Difference]: Without dead ends: 891 [2024-11-12 00:54:45,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-12 00:54:45,343 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 89 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:45,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1172 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:45,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-12 00:54:45,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 825. [2024-11-12 00:54:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 824 states have (on average 1.337378640776699) internal successors, (1102), 824 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:45,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1102 transitions. [2024-11-12 00:54:45,356 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1102 transitions. Word has length 58 [2024-11-12 00:54:45,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:45,356 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1102 transitions. [2024-11-12 00:54:45,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:45,357 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1102 transitions. [2024-11-12 00:54:45,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:45,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:45,359 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:45,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-12 00:54:45,360 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:45,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:45,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1767313941, now seen corresponding path program 1 times [2024-11-12 00:54:45,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:45,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128286957] [2024-11-12 00:54:45,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:45,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:46,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:46,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:46,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128286957] [2024-11-12 00:54:46,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128286957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:46,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:46,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-12 00:54:46,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532701091] [2024-11-12 00:54:46,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:46,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-12 00:54:46,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:46,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-12 00:54:46,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-11-12 00:54:46,484 INFO L87 Difference]: Start difference. First operand 825 states and 1102 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:46,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:46,702 INFO L93 Difference]: Finished difference Result 1134 states and 1544 transitions. [2024-11-12 00:54:46,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-12 00:54:46,703 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:46,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:46,705 INFO L225 Difference]: With dead ends: 1134 [2024-11-12 00:54:46,706 INFO L226 Difference]: Without dead ends: 925 [2024-11-12 00:54:46,707 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-11-12 00:54:46,707 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 136 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:46,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1133 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:46,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-12 00:54:46,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 825. [2024-11-12 00:54:46,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 824 states have (on average 1.3385922330097086) internal successors, (1103), 824 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:46,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1103 transitions. [2024-11-12 00:54:46,725 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1103 transitions. Word has length 58 [2024-11-12 00:54:46,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:46,726 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1103 transitions. [2024-11-12 00:54:46,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:46,726 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1103 transitions. [2024-11-12 00:54:46,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:46,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:46,727 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:46,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-12 00:54:46,728 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:46,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:46,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1008377028, now seen corresponding path program 1 times [2024-11-12 00:54:46,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:46,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708664742] [2024-11-12 00:54:46,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:46,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:47,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:47,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708664742] [2024-11-12 00:54:47,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708664742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:47,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:47,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-12 00:54:47,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384039650] [2024-11-12 00:54:47,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:47,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-12 00:54:47,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:47,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-12 00:54:47,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:54:47,735 INFO L87 Difference]: Start difference. First operand 825 states and 1103 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:48,011 INFO L93 Difference]: Finished difference Result 1109 states and 1510 transitions. [2024-11-12 00:54:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 00:54:48,012 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:48,015 INFO L225 Difference]: With dead ends: 1109 [2024-11-12 00:54:48,015 INFO L226 Difference]: Without dead ends: 900 [2024-11-12 00:54:48,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:54:48,016 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 195 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:48,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1493 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:48,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-12 00:54:48,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 800. [2024-11-12 00:54:48,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 1.3354192740926158) internal successors, (1067), 799 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1067 transitions. [2024-11-12 00:54:48,030 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1067 transitions. Word has length 58 [2024-11-12 00:54:48,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:48,030 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1067 transitions. [2024-11-12 00:54:48,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,030 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1067 transitions. [2024-11-12 00:54:48,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:48,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:48,032 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:48,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-12 00:54:48,032 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:48,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:48,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1178240200, now seen corresponding path program 1 times [2024-11-12 00:54:48,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:48,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199379162] [2024-11-12 00:54:48,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:48,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:48,327 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:48,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:48,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199379162] [2024-11-12 00:54:48,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199379162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:48,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:48,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 00:54:48,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293861735] [2024-11-12 00:54:48,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:48,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 00:54:48,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:48,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 00:54:48,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-12 00:54:48,331 INFO L87 Difference]: Start difference. First operand 800 states and 1067 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:48,385 INFO L93 Difference]: Finished difference Result 1066 states and 1457 transitions. [2024-11-12 00:54:48,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 00:54:48,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:48,388 INFO L225 Difference]: With dead ends: 1066 [2024-11-12 00:54:48,388 INFO L226 Difference]: Without dead ends: 808 [2024-11-12 00:54:48,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-12 00:54:48,390 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 30 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:48,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 847 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:48,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-12 00:54:48,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 794. [2024-11-12 00:54:48,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.3316519546027743) internal successors, (1056), 793 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1056 transitions. [2024-11-12 00:54:48,403 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1056 transitions. Word has length 58 [2024-11-12 00:54:48,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:48,403 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1056 transitions. [2024-11-12 00:54:48,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,403 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1056 transitions. [2024-11-12 00:54:48,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:48,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:48,405 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:48,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-12 00:54:48,405 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:48,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1125042801, now seen corresponding path program 1 times [2024-11-12 00:54:48,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:48,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777753599] [2024-11-12 00:54:48,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:48,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:48,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:48,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:48,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777753599] [2024-11-12 00:54:48,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777753599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:48,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:48,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 00:54:48,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699978390] [2024-11-12 00:54:48,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:48,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 00:54:48,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:48,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 00:54:48,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 00:54:48,715 INFO L87 Difference]: Start difference. First operand 794 states and 1056 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:48,780 INFO L93 Difference]: Finished difference Result 1054 states and 1431 transitions. [2024-11-12 00:54:48,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 00:54:48,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:48,783 INFO L225 Difference]: With dead ends: 1054 [2024-11-12 00:54:48,783 INFO L226 Difference]: Without dead ends: 794 [2024-11-12 00:54:48,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 00:54:48,784 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 27 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 791 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 [2024-11-12 00:54:48,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 791 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:48,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-11-12 00:54:48,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2024-11-12 00:54:48,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.3240857503152585) internal successors, (1050), 793 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1050 transitions. [2024-11-12 00:54:48,804 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1050 transitions. Word has length 58 [2024-11-12 00:54:48,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:48,804 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1050 transitions. [2024-11-12 00:54:48,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:48,804 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1050 transitions. [2024-11-12 00:54:48,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:48,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:48,806 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:48,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-12 00:54:48,806 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:48,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:48,807 INFO L85 PathProgramCache]: Analyzing trace with hash -319654, now seen corresponding path program 1 times [2024-11-12 00:54:48,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:48,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115883659] [2024-11-12 00:54:48,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:48,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:49,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:49,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115883659] [2024-11-12 00:54:49,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115883659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:49,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:49,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-12 00:54:49,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543967534] [2024-11-12 00:54:49,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:49,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 00:54:49,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 00:54:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-12 00:54:49,214 INFO L87 Difference]: Start difference. First operand 794 states and 1050 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:49,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:49,278 INFO L93 Difference]: Finished difference Result 1065 states and 1442 transitions. [2024-11-12 00:54:49,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 00:54:49,279 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:49,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:49,281 INFO L225 Difference]: With dead ends: 1065 [2024-11-12 00:54:49,281 INFO L226 Difference]: Without dead ends: 842 [2024-11-12 00:54:49,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-12 00:54:49,283 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 34 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 878 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 [2024-11-12 00:54:49,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 878 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:49,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-12 00:54:49,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 823. [2024-11-12 00:54:49,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 822 states have (on average 1.3223844282238444) internal successors, (1087), 822 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1087 transitions. [2024-11-12 00:54:49,298 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1087 transitions. Word has length 58 [2024-11-12 00:54:49,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:49,298 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1087 transitions. [2024-11-12 00:54:49,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:49,299 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1087 transitions. [2024-11-12 00:54:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:49,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:49,302 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:49,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-12 00:54:49,302 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:49,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:49,303 INFO L85 PathProgramCache]: Analyzing trace with hash 146754465, now seen corresponding path program 1 times [2024-11-12 00:54:49,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:49,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927706261] [2024-11-12 00:54:49,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:49,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:50,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:50,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927706261] [2024-11-12 00:54:50,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927706261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:50,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:50,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-12 00:54:50,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949373650] [2024-11-12 00:54:50,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:50,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 00:54:50,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:50,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 00:54:50,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:54:50,631 INFO L87 Difference]: Start difference. First operand 823 states and 1087 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:51,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:51,607 INFO L93 Difference]: Finished difference Result 1478 states and 2000 transitions. [2024-11-12 00:54:51,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 00:54:51,608 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:51,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:51,611 INFO L225 Difference]: With dead ends: 1478 [2024-11-12 00:54:51,611 INFO L226 Difference]: Without dead ends: 1268 [2024-11-12 00:54:51,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2024-11-12 00:54:51,613 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 420 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:51,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 2151 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-12 00:54:51,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-11-12 00:54:51,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 959. [2024-11-12 00:54:51,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 958 states have (on average 1.3235908141962422) internal successors, (1268), 958 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:51,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1268 transitions. [2024-11-12 00:54:51,631 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1268 transitions. Word has length 58 [2024-11-12 00:54:51,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:51,631 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1268 transitions. [2024-11-12 00:54:51,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:51,631 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1268 transitions. [2024-11-12 00:54:51,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:51,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:51,633 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:51,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-12 00:54:51,634 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:51,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:51,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1443040232, now seen corresponding path program 1 times [2024-11-12 00:54:51,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:51,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097717578] [2024-11-12 00:54:51,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:51,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:52,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:52,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097717578] [2024-11-12 00:54:52,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097717578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:52,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:52,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 00:54:52,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689643820] [2024-11-12 00:54:52,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:52,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 00:54:52,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:52,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 00:54:52,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-12 00:54:52,068 INFO L87 Difference]: Start difference. First operand 959 states and 1268 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:52,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:52,125 INFO L93 Difference]: Finished difference Result 1272 states and 1714 transitions. [2024-11-12 00:54:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 00:54:52,126 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:52,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:52,128 INFO L225 Difference]: With dead ends: 1272 [2024-11-12 00:54:52,128 INFO L226 Difference]: Without dead ends: 948 [2024-11-12 00:54:52,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-12 00:54:52,130 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 41 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:52,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 734 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:54:52,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-12 00:54:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 910. [2024-11-12 00:54:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 909 states have (on average 1.316831683168317) internal successors, (1197), 909 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:52,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1197 transitions. [2024-11-12 00:54:52,147 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1197 transitions. Word has length 58 [2024-11-12 00:54:52,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:52,147 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1197 transitions. [2024-11-12 00:54:52,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:52,148 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1197 transitions. [2024-11-12 00:54:52,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:52,149 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:52,150 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:52,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-12 00:54:52,150 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:52,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1200337350, now seen corresponding path program 1 times [2024-11-12 00:54:52,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:52,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438135027] [2024-11-12 00:54:52,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:52,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:53,071 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:53,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:53,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438135027] [2024-11-12 00:54:53,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438135027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:53,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:53,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-12 00:54:53,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704420649] [2024-11-12 00:54:53,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:53,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 00:54:53,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:53,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 00:54:53,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:54:53,074 INFO L87 Difference]: Start difference. First operand 910 states and 1197 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:53,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:53,327 INFO L93 Difference]: Finished difference Result 1280 states and 1728 transitions. [2024-11-12 00:54:53,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 00:54:53,327 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:53,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:53,331 INFO L225 Difference]: With dead ends: 1280 [2024-11-12 00:54:53,331 INFO L226 Difference]: Without dead ends: 1019 [2024-11-12 00:54:53,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:54:53,333 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 134 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:53,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1740 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:53,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2024-11-12 00:54:53,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 916. [2024-11-12 00:54:53,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 915 states have (on average 1.3158469945355191) internal successors, (1204), 915 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1204 transitions. [2024-11-12 00:54:53,354 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1204 transitions. Word has length 58 [2024-11-12 00:54:53,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:53,354 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1204 transitions. [2024-11-12 00:54:53,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:53,355 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1204 transitions. [2024-11-12 00:54:53,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:53,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:53,357 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:53,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-12 00:54:53,358 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:53,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:53,358 INFO L85 PathProgramCache]: Analyzing trace with hash -418062271, now seen corresponding path program 1 times [2024-11-12 00:54:53,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:53,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336205655] [2024-11-12 00:54:53,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:53,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:53,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:53,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336205655] [2024-11-12 00:54:53,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336205655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:53,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:53,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-12 00:54:53,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956689998] [2024-11-12 00:54:53,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:53,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 00:54:53,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:53,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 00:54:53,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-12 00:54:53,797 INFO L87 Difference]: Start difference. First operand 916 states and 1204 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:53,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:53,870 INFO L93 Difference]: Finished difference Result 1278 states and 1718 transitions. [2024-11-12 00:54:53,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 00:54:53,871 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:53,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:53,874 INFO L225 Difference]: With dead ends: 1278 [2024-11-12 00:54:53,874 INFO L226 Difference]: Without dead ends: 1003 [2024-11-12 00:54:53,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-12 00:54:53,875 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 46 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:53,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 832 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:53,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-12 00:54:53,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 939. [2024-11-12 00:54:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 938 states have (on average 1.3102345415778252) internal successors, (1229), 938 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:53,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1229 transitions. [2024-11-12 00:54:53,897 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1229 transitions. Word has length 58 [2024-11-12 00:54:53,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:53,897 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1229 transitions. [2024-11-12 00:54:53,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:53,898 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1229 transitions. [2024-11-12 00:54:53,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:53,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:53,899 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:53,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-12 00:54:53,899 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:53,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:53,900 INFO L85 PathProgramCache]: Analyzing trace with hash -270988152, now seen corresponding path program 1 times [2024-11-12 00:54:53,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:53,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363158452] [2024-11-12 00:54:53,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:53,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:54,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:54,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363158452] [2024-11-12 00:54:54,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363158452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 00:54:54,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638891456] [2024-11-12 00:54:54,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:54,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:54:54,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:54:54,190 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) [2024-11-12 00:54:54,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 00:54:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:54,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 148 conjuncts are in the unsatisfiable core [2024-11-12 00:54:54,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 00:54:55,116 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:55,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 00:54:55,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638891456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:55,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 00:54:55,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2024-11-12 00:54:55,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222878374] [2024-11-12 00:54:55,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:55,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-12 00:54:55,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:55,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 00:54:55,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-12 00:54:55,118 INFO L87 Difference]: Start difference. First operand 939 states and 1229 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:55,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:55,422 INFO L93 Difference]: Finished difference Result 2061 states and 2705 transitions. [2024-11-12 00:54:55,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 00:54:55,423 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:55,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:55,428 INFO L225 Difference]: With dead ends: 2061 [2024-11-12 00:54:55,428 INFO L226 Difference]: Without dead ends: 1788 [2024-11-12 00:54:55,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-12 00:54:55,430 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 178 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:55,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 607 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 00:54:55,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2024-11-12 00:54:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1209. [2024-11-12 00:54:55,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1208 states have (on average 1.3187086092715232) internal successors, (1593), 1208 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1593 transitions. [2024-11-12 00:54:55,453 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1593 transitions. Word has length 58 [2024-11-12 00:54:55,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:55,453 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1593 transitions. [2024-11-12 00:54:55,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:55,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1593 transitions. [2024-11-12 00:54:55,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:55,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:55,455 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:55,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 00:54:55,656 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,SelfDestructingSolverStorable32 [2024-11-12 00:54:55,656 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:55,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:55,657 INFO L85 PathProgramCache]: Analyzing trace with hash 70047194, now seen corresponding path program 1 times [2024-11-12 00:54:55,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:55,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468174742] [2024-11-12 00:54:55,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:55,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:55,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:55,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468174742] [2024-11-12 00:54:55,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468174742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 00:54:55,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213843168] [2024-11-12 00:54:55,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:55,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:54:55,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:54:55,961 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) [2024-11-12 00:54:55,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 00:54:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:56,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-12 00:54:56,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 00:54:56,669 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:56,670 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 00:54:56,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213843168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:56,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 00:54:56,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2024-11-12 00:54:56,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344397860] [2024-11-12 00:54:56,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:56,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 00:54:56,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:56,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 00:54:56,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-12 00:54:56,672 INFO L87 Difference]: Start difference. First operand 1209 states and 1593 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:56,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:56,990 INFO L93 Difference]: Finished difference Result 1867 states and 2522 transitions. [2024-11-12 00:54:56,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 00:54:56,991 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:56,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:56,994 INFO L225 Difference]: With dead ends: 1867 [2024-11-12 00:54:56,995 INFO L226 Difference]: Without dead ends: 1526 [2024-11-12 00:54:56,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-12 00:54:56,996 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 163 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:56,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 808 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 00:54:56,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2024-11-12 00:54:57,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1504. [2024-11-12 00:54:57,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1503 states have (on average 1.3213572854291418) internal successors, (1986), 1503 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:57,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1986 transitions. [2024-11-12 00:54:57,019 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1986 transitions. Word has length 58 [2024-11-12 00:54:57,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:57,020 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 1986 transitions. [2024-11-12 00:54:57,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:57,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1986 transitions. [2024-11-12 00:54:57,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:57,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:57,022 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:57,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 00:54:57,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:54:57,227 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:57,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:57,227 INFO L85 PathProgramCache]: Analyzing trace with hash 401761184, now seen corresponding path program 1 times [2024-11-12 00:54:57,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:57,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555411760] [2024-11-12 00:54:57,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:57,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:57,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:57,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555411760] [2024-11-12 00:54:57,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555411760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:57,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:57,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 00:54:57,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506751725] [2024-11-12 00:54:57,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:57,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 00:54:57,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:57,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 00:54:57,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-12 00:54:57,719 INFO L87 Difference]: Start difference. First operand 1504 states and 1986 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:57,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:57,924 INFO L93 Difference]: Finished difference Result 1998 states and 2707 transitions. [2024-11-12 00:54:57,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 00:54:57,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:57,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:57,930 INFO L225 Difference]: With dead ends: 1998 [2024-11-12 00:54:57,930 INFO L226 Difference]: Without dead ends: 1529 [2024-11-12 00:54:57,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-12 00:54:57,934 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 279 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:57,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 669 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:54:57,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-12 00:54:57,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1518. [2024-11-12 00:54:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 1.3210283454185894) internal successors, (2004), 1517 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:57,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2004 transitions. [2024-11-12 00:54:57,960 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2004 transitions. Word has length 58 [2024-11-12 00:54:57,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:57,960 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 2004 transitions. [2024-11-12 00:54:57,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:57,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2004 transitions. [2024-11-12 00:54:57,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:57,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:57,965 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:57,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-12 00:54:57,966 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:57,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:57,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1595826479, now seen corresponding path program 1 times [2024-11-12 00:54:57,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:57,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151944786] [2024-11-12 00:54:57,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:57,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:58,537 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:58,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:58,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151944786] [2024-11-12 00:54:58,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151944786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:58,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:58,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-12 00:54:58,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891821935] [2024-11-12 00:54:58,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:58,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 00:54:58,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:58,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 00:54:58,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-12 00:54:58,539 INFO L87 Difference]: Start difference. First operand 1518 states and 2004 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:58,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:58,628 INFO L93 Difference]: Finished difference Result 2346 states and 3116 transitions. [2024-11-12 00:54:58,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 00:54:58,629 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:58,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:58,635 INFO L225 Difference]: With dead ends: 2346 [2024-11-12 00:54:58,635 INFO L226 Difference]: Without dead ends: 1827 [2024-11-12 00:54:58,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-12 00:54:58,637 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 75 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:58,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 803 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:58,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2024-11-12 00:54:58,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1636. [2024-11-12 00:54:58,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1635 states have (on average 1.3027522935779816) internal successors, (2130), 1635 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:58,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2130 transitions. [2024-11-12 00:54:58,667 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2130 transitions. Word has length 58 [2024-11-12 00:54:58,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:58,667 INFO L471 AbstractCegarLoop]: Abstraction has 1636 states and 2130 transitions. [2024-11-12 00:54:58,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:58,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2130 transitions. [2024-11-12 00:54:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:58,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:58,670 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:58,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-12 00:54:58,671 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:58,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:58,671 INFO L85 PathProgramCache]: Analyzing trace with hash 429119112, now seen corresponding path program 1 times [2024-11-12 00:54:58,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:58,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929823095] [2024-11-12 00:54:58,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:58,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:54:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:54:59,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:54:59,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929823095] [2024-11-12 00:54:59,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929823095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:54:59,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:54:59,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-12 00:54:59,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783983921] [2024-11-12 00:54:59,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:54:59,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-12 00:54:59,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:54:59,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-12 00:54:59,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-12 00:54:59,174 INFO L87 Difference]: Start difference. First operand 1636 states and 2130 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:59,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:54:59,294 INFO L93 Difference]: Finished difference Result 2617 states and 3460 transitions. [2024-11-12 00:54:59,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-12 00:54:59,295 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:54:59,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:54:59,300 INFO L225 Difference]: With dead ends: 2617 [2024-11-12 00:54:59,300 INFO L226 Difference]: Without dead ends: 2131 [2024-11-12 00:54:59,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-12 00:54:59,302 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 59 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:54:59,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1128 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:54:59,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2024-11-12 00:54:59,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 1890. [2024-11-12 00:54:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1889 states have (on average 1.3065113816834304) internal successors, (2468), 1889 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2468 transitions. [2024-11-12 00:54:59,333 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2468 transitions. Word has length 58 [2024-11-12 00:54:59,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:54:59,336 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2468 transitions. [2024-11-12 00:54:59,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:54:59,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2468 transitions. [2024-11-12 00:54:59,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:54:59,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:54:59,340 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:54:59,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-12 00:54:59,341 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:54:59,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:54:59,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2128228168, now seen corresponding path program 1 times [2024-11-12 00:54:59,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:54:59,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245669793] [2024-11-12 00:54:59,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:54:59,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:54:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:00,144 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:00,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:00,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245669793] [2024-11-12 00:55:00,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245669793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:00,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:00,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-12 00:55:00,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611182073] [2024-11-12 00:55:00,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:00,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-12 00:55:00,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:00,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-12 00:55:00,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:55:00,146 INFO L87 Difference]: Start difference. First operand 1890 states and 2468 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:00,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:00,327 INFO L93 Difference]: Finished difference Result 2491 states and 3327 transitions. [2024-11-12 00:55:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 00:55:00,327 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:55:00,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:00,331 INFO L225 Difference]: With dead ends: 2491 [2024-11-12 00:55:00,331 INFO L226 Difference]: Without dead ends: 2008 [2024-11-12 00:55:00,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:55:00,333 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 109 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:00,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1681 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:55:00,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2024-11-12 00:55:00,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1928. [2024-11-12 00:55:00,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1927 states have (on average 1.305137519460301) internal successors, (2515), 1927 states have internal predecessors, (2515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:00,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2515 transitions. [2024-11-12 00:55:00,359 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 2515 transitions. Word has length 58 [2024-11-12 00:55:00,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:00,359 INFO L471 AbstractCegarLoop]: Abstraction has 1928 states and 2515 transitions. [2024-11-12 00:55:00,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 2515 transitions. [2024-11-12 00:55:00,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:55:00,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:00,363 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:00,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-12 00:55:00,363 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:00,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:00,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1310745227, now seen corresponding path program 1 times [2024-11-12 00:55:00,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:00,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202847958] [2024-11-12 00:55:00,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:00,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:00,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:00,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202847958] [2024-11-12 00:55:00,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202847958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:00,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:00,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:55:00,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514117152] [2024-11-12 00:55:00,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:00,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:55:00,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:00,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:55:00,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:55:00,616 INFO L87 Difference]: Start difference. First operand 1928 states and 2515 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:00,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:00,753 INFO L93 Difference]: Finished difference Result 2397 states and 3185 transitions. [2024-11-12 00:55:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 00:55:00,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:55:00,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:00,756 INFO L225 Difference]: With dead ends: 2397 [2024-11-12 00:55:00,756 INFO L226 Difference]: Without dead ends: 1580 [2024-11-12 00:55:00,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-12 00:55:00,757 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 130 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:00,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 367 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:00,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-12 00:55:00,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1580. [2024-11-12 00:55:00,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 1.3052564914502849) internal successors, (2061), 1579 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:00,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2061 transitions. [2024-11-12 00:55:00,777 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2061 transitions. Word has length 58 [2024-11-12 00:55:00,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:00,777 INFO L471 AbstractCegarLoop]: Abstraction has 1580 states and 2061 transitions. [2024-11-12 00:55:00,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:00,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2061 transitions. [2024-11-12 00:55:00,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:55:00,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:00,780 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:00,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-12 00:55:00,780 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:00,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:00,781 INFO L85 PathProgramCache]: Analyzing trace with hash 975412250, now seen corresponding path program 1 times [2024-11-12 00:55:00,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:00,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738296013] [2024-11-12 00:55:00,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:00,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:01,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:01,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:01,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738296013] [2024-11-12 00:55:01,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738296013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:01,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:01,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-12 00:55:01,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558602620] [2024-11-12 00:55:01,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:01,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-12 00:55:01,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:01,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-12 00:55:01,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:55:01,403 INFO L87 Difference]: Start difference. First operand 1580 states and 2061 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:01,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:01,586 INFO L93 Difference]: Finished difference Result 2318 states and 3098 transitions. [2024-11-12 00:55:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 00:55:01,586 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:55:01,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:01,589 INFO L225 Difference]: With dead ends: 2318 [2024-11-12 00:55:01,589 INFO L226 Difference]: Without dead ends: 1878 [2024-11-12 00:55:01,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:55:01,591 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 59 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:01,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1678 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:55:01,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2024-11-12 00:55:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1720. [2024-11-12 00:55:01,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.3054101221640488) internal successors, (2244), 1719 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:01,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2244 transitions. [2024-11-12 00:55:01,621 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2244 transitions. Word has length 58 [2024-11-12 00:55:01,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:01,621 INFO L471 AbstractCegarLoop]: Abstraction has 1720 states and 2244 transitions. [2024-11-12 00:55:01,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:01,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2244 transitions. [2024-11-12 00:55:01,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:55:01,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:01,625 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:01,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-12 00:55:01,625 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:01,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:01,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1224736609, now seen corresponding path program 1 times [2024-11-12 00:55:01,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:01,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072595761] [2024-11-12 00:55:01,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:01,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:02,600 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:02,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:02,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072595761] [2024-11-12 00:55:02,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072595761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:02,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:02,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-12 00:55:02,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440804285] [2024-11-12 00:55:02,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:02,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-12 00:55:02,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:02,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-12 00:55:02,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-12 00:55:02,602 INFO L87 Difference]: Start difference. First operand 1720 states and 2244 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:02,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:02,878 INFO L93 Difference]: Finished difference Result 2183 states and 2903 transitions. [2024-11-12 00:55:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 00:55:02,878 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:55:02,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:02,880 INFO L225 Difference]: With dead ends: 2183 [2024-11-12 00:55:02,880 INFO L226 Difference]: Without dead ends: 1770 [2024-11-12 00:55:02,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-12 00:55:02,881 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 139 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:02,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1400 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:55:02,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-11-12 00:55:02,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1724. [2024-11-12 00:55:02,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1723 states have (on average 1.3052814857806152) internal successors, (2249), 1723 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:02,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2249 transitions. [2024-11-12 00:55:02,902 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2249 transitions. Word has length 58 [2024-11-12 00:55:02,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:02,902 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2249 transitions. [2024-11-12 00:55:02,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:02,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2249 transitions. [2024-11-12 00:55:02,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:55:02,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:02,905 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:02,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-12 00:55:02,906 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:02,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:02,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1765607968, now seen corresponding path program 1 times [2024-11-12 00:55:02,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:02,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952925892] [2024-11-12 00:55:02,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:02,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:03,916 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:03,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:03,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952925892] [2024-11-12 00:55:03,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952925892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:03,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:03,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-12 00:55:03,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922444684] [2024-11-12 00:55:03,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:03,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 00:55:03,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:03,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 00:55:03,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-12 00:55:03,918 INFO L87 Difference]: Start difference. First operand 1724 states and 2249 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:04,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:04,154 INFO L93 Difference]: Finished difference Result 2272 states and 3023 transitions. [2024-11-12 00:55:04,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 00:55:04,154 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:55:04,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:04,156 INFO L225 Difference]: With dead ends: 2272 [2024-11-12 00:55:04,157 INFO L226 Difference]: Without dead ends: 1859 [2024-11-12 00:55:04,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:55:04,158 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 115 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:04,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1281 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:55:04,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2024-11-12 00:55:04,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1774. [2024-11-12 00:55:04,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1773 states have (on average 1.305696559503666) internal successors, (2315), 1773 states have internal predecessors, (2315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:04,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2315 transitions. [2024-11-12 00:55:04,177 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2315 transitions. Word has length 58 [2024-11-12 00:55:04,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:04,177 INFO L471 AbstractCegarLoop]: Abstraction has 1774 states and 2315 transitions. [2024-11-12 00:55:04,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2315 transitions. [2024-11-12 00:55:04,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:55:04,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:04,180 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:04,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-12 00:55:04,181 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:04,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:04,181 INFO L85 PathProgramCache]: Analyzing trace with hash 458729454, now seen corresponding path program 1 times [2024-11-12 00:55:04,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:04,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427346535] [2024-11-12 00:55:04,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:04,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:04,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:04,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:04,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427346535] [2024-11-12 00:55:04,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427346535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:04,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:04,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-12 00:55:04,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108740041] [2024-11-12 00:55:04,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:04,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 00:55:04,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:04,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 00:55:04,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-12 00:55:04,983 INFO L87 Difference]: Start difference. First operand 1774 states and 2315 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:05,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:05,229 INFO L93 Difference]: Finished difference Result 2278 states and 3029 transitions. [2024-11-12 00:55:05,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 00:55:05,230 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:55:05,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:05,232 INFO L225 Difference]: With dead ends: 2278 [2024-11-12 00:55:05,232 INFO L226 Difference]: Without dead ends: 1865 [2024-11-12 00:55:05,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:55:05,234 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 92 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:05,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1427 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:55:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2024-11-12 00:55:05,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1778. [2024-11-12 00:55:05,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1778 states, 1777 states have (on average 1.3050084411930218) internal successors, (2319), 1777 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:05,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2319 transitions. [2024-11-12 00:55:05,253 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2319 transitions. Word has length 58 [2024-11-12 00:55:05,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:05,253 INFO L471 AbstractCegarLoop]: Abstraction has 1778 states and 2319 transitions. [2024-11-12 00:55:05,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2319 transitions. [2024-11-12 00:55:05,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 00:55:05,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:05,256 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:05,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-12 00:55:05,256 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:05,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:05,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1386191307, now seen corresponding path program 1 times [2024-11-12 00:55:05,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:05,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440229349] [2024-11-12 00:55:05,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:05,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:06,186 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:06,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:06,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440229349] [2024-11-12 00:55:06,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440229349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:06,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:06,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-12 00:55:06,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741114128] [2024-11-12 00:55:06,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:06,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 00:55:06,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:06,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 00:55:06,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-12 00:55:06,188 INFO L87 Difference]: Start difference. First operand 1778 states and 2319 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:06,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:06,460 INFO L93 Difference]: Finished difference Result 2224 states and 2962 transitions. [2024-11-12 00:55:06,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 00:55:06,461 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-12 00:55:06,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:06,463 INFO L225 Difference]: With dead ends: 2224 [2024-11-12 00:55:06,463 INFO L226 Difference]: Without dead ends: 1811 [2024-11-12 00:55:06,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:55:06,464 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 79 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:06,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1507 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:55:06,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-11-12 00:55:06,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1764. [2024-11-12 00:55:06,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1763 states have (on average 1.3074305161656268) internal successors, (2305), 1763 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:06,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2305 transitions. [2024-11-12 00:55:06,482 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2305 transitions. Word has length 58 [2024-11-12 00:55:06,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:06,482 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2305 transitions. [2024-11-12 00:55:06,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:06,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2305 transitions. [2024-11-12 00:55:06,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-12 00:55:06,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:06,485 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:06,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-12 00:55:06,485 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:06,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:06,486 INFO L85 PathProgramCache]: Analyzing trace with hash 609168265, now seen corresponding path program 1 times [2024-11-12 00:55:06,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:06,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450734490] [2024-11-12 00:55:06,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:06,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:06,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:06,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450734490] [2024-11-12 00:55:06,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450734490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:06,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:06,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 00:55:06,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551223662] [2024-11-12 00:55:06,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:06,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 00:55:06,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:06,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 00:55:06,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 00:55:06,711 INFO L87 Difference]: Start difference. First operand 1764 states and 2305 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:06,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:06,766 INFO L93 Difference]: Finished difference Result 2199 states and 2935 transitions. [2024-11-12 00:55:06,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 00:55:06,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-12 00:55:06,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:06,769 INFO L225 Difference]: With dead ends: 2199 [2024-11-12 00:55:06,769 INFO L226 Difference]: Without dead ends: 1663 [2024-11-12 00:55:06,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 00:55:06,771 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 26 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:06,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 814 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:55:06,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-12 00:55:06,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1579. [2024-11-12 00:55:06,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 1.3035487959442331) internal successors, (2057), 1578 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2057 transitions. [2024-11-12 00:55:06,788 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2057 transitions. Word has length 59 [2024-11-12 00:55:06,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:06,788 INFO L471 AbstractCegarLoop]: Abstraction has 1579 states and 2057 transitions. [2024-11-12 00:55:06,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:06,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2057 transitions. [2024-11-12 00:55:06,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-12 00:55:06,791 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:06,791 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:06,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-12 00:55:06,791 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:06,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:06,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1667878235, now seen corresponding path program 1 times [2024-11-12 00:55:06,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:06,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386017886] [2024-11-12 00:55:06,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:06,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:07,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:07,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:07,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386017886] [2024-11-12 00:55:07,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386017886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:07,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:07,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 00:55:07,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804257132] [2024-11-12 00:55:07,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:07,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 00:55:07,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:07,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 00:55:07,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-12 00:55:07,189 INFO L87 Difference]: Start difference. First operand 1579 states and 2057 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:07,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:07,337 INFO L93 Difference]: Finished difference Result 2573 states and 3400 transitions. [2024-11-12 00:55:07,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 00:55:07,337 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-12 00:55:07,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:07,340 INFO L225 Difference]: With dead ends: 2573 [2024-11-12 00:55:07,340 INFO L226 Difference]: Without dead ends: 2063 [2024-11-12 00:55:07,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-12 00:55:07,341 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:07,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 472 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:07,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2024-11-12 00:55:07,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1931. [2024-11-12 00:55:07,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1930 states have (on average 1.2927461139896372) internal successors, (2495), 1930 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2495 transitions. [2024-11-12 00:55:07,365 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2495 transitions. Word has length 59 [2024-11-12 00:55:07,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:07,365 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 2495 transitions. [2024-11-12 00:55:07,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:07,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2495 transitions. [2024-11-12 00:55:07,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-12 00:55:07,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:07,369 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:07,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-12 00:55:07,369 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:07,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:07,369 INFO L85 PathProgramCache]: Analyzing trace with hash 347375337, now seen corresponding path program 1 times [2024-11-12 00:55:07,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:07,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126899009] [2024-11-12 00:55:07,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:07,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:07,631 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:07,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:07,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126899009] [2024-11-12 00:55:07,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126899009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 00:55:07,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323937532] [2024-11-12 00:55:07,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:07,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:55:07,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:55:07,634 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) [2024-11-12 00:55:07,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 00:55:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:07,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-12 00:55:07,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 00:55:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:08,129 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 00:55:08,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323937532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:08,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 00:55:08,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2024-11-12 00:55:08,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608184464] [2024-11-12 00:55:08,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:08,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 00:55:08,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:08,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 00:55:08,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-12 00:55:08,131 INFO L87 Difference]: Start difference. First operand 1931 states and 2495 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:08,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:08,216 INFO L93 Difference]: Finished difference Result 2456 states and 3259 transitions. [2024-11-12 00:55:08,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 00:55:08,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-12 00:55:08,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:08,220 INFO L225 Difference]: With dead ends: 2456 [2024-11-12 00:55:08,220 INFO L226 Difference]: Without dead ends: 1960 [2024-11-12 00:55:08,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-12 00:55:08,221 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 88 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:08,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 518 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:08,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2024-11-12 00:55:08,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1890. [2024-11-12 00:55:08,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1889 states have (on average 1.2964531498147167) internal successors, (2449), 1889 states have internal predecessors, (2449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:08,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2449 transitions. [2024-11-12 00:55:08,242 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2449 transitions. Word has length 59 [2024-11-12 00:55:08,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:08,242 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2449 transitions. [2024-11-12 00:55:08,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:08,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2449 transitions. [2024-11-12 00:55:08,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-12 00:55:08,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:08,245 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:08,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 00:55:08,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:55:08,450 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:08,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:08,450 INFO L85 PathProgramCache]: Analyzing trace with hash 712040418, now seen corresponding path program 1 times [2024-11-12 00:55:08,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:08,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346139751] [2024-11-12 00:55:08,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:08,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:09,147 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:09,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:09,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346139751] [2024-11-12 00:55:09,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346139751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:09,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:09,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-12 00:55:09,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010363285] [2024-11-12 00:55:09,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:09,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 00:55:09,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:09,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 00:55:09,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:55:09,150 INFO L87 Difference]: Start difference. First operand 1890 states and 2449 transitions. Second operand has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:09,377 INFO L93 Difference]: Finished difference Result 2532 states and 3354 transitions. [2024-11-12 00:55:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 00:55:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-12 00:55:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:09,381 INFO L225 Difference]: With dead ends: 2532 [2024-11-12 00:55:09,381 INFO L226 Difference]: Without dead ends: 2027 [2024-11-12 00:55:09,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:55:09,384 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 144 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:09,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1354 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:55:09,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-12 00:55:09,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1903. [2024-11-12 00:55:09,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1902 states have (on average 1.2960042060988433) internal successors, (2465), 1902 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:09,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2465 transitions. [2024-11-12 00:55:09,407 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2465 transitions. Word has length 59 [2024-11-12 00:55:09,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:09,408 INFO L471 AbstractCegarLoop]: Abstraction has 1903 states and 2465 transitions. [2024-11-12 00:55:09,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:09,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2465 transitions. [2024-11-12 00:55:09,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-12 00:55:09,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:09,411 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:09,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-12 00:55:09,411 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:09,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:09,412 INFO L85 PathProgramCache]: Analyzing trace with hash 567372976, now seen corresponding path program 1 times [2024-11-12 00:55:09,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:09,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905072276] [2024-11-12 00:55:09,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:09,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:10,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:10,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905072276] [2024-11-12 00:55:10,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905072276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:10,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:10,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-12 00:55:10,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682339890] [2024-11-12 00:55:10,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:10,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 00:55:10,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:10,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 00:55:10,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:55:10,197 INFO L87 Difference]: Start difference. First operand 1903 states and 2465 transitions. Second operand has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:10,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:10,426 INFO L93 Difference]: Finished difference Result 2620 states and 3462 transitions. [2024-11-12 00:55:10,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 00:55:10,427 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-12 00:55:10,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:10,430 INFO L225 Difference]: With dead ends: 2620 [2024-11-12 00:55:10,431 INFO L226 Difference]: Without dead ends: 2115 [2024-11-12 00:55:10,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:55:10,432 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 79 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:10,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1853 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:55:10,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2024-11-12 00:55:10,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1965. [2024-11-12 00:55:10,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1964 states have (on average 1.2942973523421588) internal successors, (2542), 1964 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:10,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2542 transitions. [2024-11-12 00:55:10,455 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2542 transitions. Word has length 59 [2024-11-12 00:55:10,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:10,455 INFO L471 AbstractCegarLoop]: Abstraction has 1965 states and 2542 transitions. [2024-11-12 00:55:10,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:10,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2542 transitions. [2024-11-12 00:55:10,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-12 00:55:10,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:10,458 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:10,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-12 00:55:10,458 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:10,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:10,459 INFO L85 PathProgramCache]: Analyzing trace with hash 809457450, now seen corresponding path program 1 times [2024-11-12 00:55:10,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:10,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703571370] [2024-11-12 00:55:10,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:10,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:11,497 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:11,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:11,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703571370] [2024-11-12 00:55:11,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703571370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:11,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:11,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-12 00:55:11,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3829581] [2024-11-12 00:55:11,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:11,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 00:55:11,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:11,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 00:55:11,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-12 00:55:11,500 INFO L87 Difference]: Start difference. First operand 1965 states and 2542 transitions. Second operand has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:11,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:11,823 INFO L93 Difference]: Finished difference Result 2595 states and 3428 transitions. [2024-11-12 00:55:11,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 00:55:11,824 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-12 00:55:11,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:11,827 INFO L225 Difference]: With dead ends: 2595 [2024-11-12 00:55:11,827 INFO L226 Difference]: Without dead ends: 2090 [2024-11-12 00:55:11,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-12 00:55:11,828 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 115 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:11,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1435 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 00:55:11,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2024-11-12 00:55:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1969. [2024-11-12 00:55:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.2942073170731707) internal successors, (2547), 1968 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:11,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2547 transitions. [2024-11-12 00:55:11,851 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2547 transitions. Word has length 59 [2024-11-12 00:55:11,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:11,851 INFO L471 AbstractCegarLoop]: Abstraction has 1969 states and 2547 transitions. [2024-11-12 00:55:11,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:11,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2547 transitions. [2024-11-12 00:55:11,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-12 00:55:11,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:11,854 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:11,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-12 00:55:11,854 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:11,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:11,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1684797157, now seen corresponding path program 1 times [2024-11-12 00:55:11,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:11,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832793068] [2024-11-12 00:55:11,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:11,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:12,883 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:12,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:12,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832793068] [2024-11-12 00:55:12,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832793068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 00:55:12,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945401314] [2024-11-12 00:55:12,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:12,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:55:12,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:55:12,885 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) [2024-11-12 00:55:12,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 00:55:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:13,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-12 00:55:13,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 00:55:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:13,752 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 00:55:13,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945401314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:13,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 00:55:13,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [25] total 42 [2024-11-12 00:55:13,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825076713] [2024-11-12 00:55:13,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:13,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-12 00:55:13,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:13,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-12 00:55:13,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1612, Unknown=0, NotChecked=0, Total=1722 [2024-11-12 00:55:13,753 INFO L87 Difference]: Start difference. First operand 1969 states and 2547 transitions. Second operand has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:13,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:13,892 INFO L93 Difference]: Finished difference Result 2551 states and 3378 transitions. [2024-11-12 00:55:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 00:55:13,893 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-12 00:55:13,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:13,895 INFO L225 Difference]: With dead ends: 2551 [2024-11-12 00:55:13,895 INFO L226 Difference]: Without dead ends: 2030 [2024-11-12 00:55:13,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=1612, Unknown=0, NotChecked=0, Total=1722 [2024-11-12 00:55:13,897 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 64 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:13,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1199 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2024-11-12 00:55:13,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1929. [2024-11-12 00:55:13,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1928 states have (on average 1.2940871369294606) internal successors, (2495), 1928 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:13,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2495 transitions. [2024-11-12 00:55:13,914 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2495 transitions. Word has length 59 [2024-11-12 00:55:13,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:13,915 INFO L471 AbstractCegarLoop]: Abstraction has 1929 states and 2495 transitions. [2024-11-12 00:55:13,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:13,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2495 transitions. [2024-11-12 00:55:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-12 00:55:13,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:13,917 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:55:13,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 00:55:14,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 00:55:14,118 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:14,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:14,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1271940102, now seen corresponding path program 1 times [2024-11-12 00:55:14,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:14,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93460741] [2024-11-12 00:55:14,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:14,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:15,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:15,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:15,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93460741] [2024-11-12 00:55:15,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93460741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:15,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:15,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-12 00:55:15,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495785178] [2024-11-12 00:55:15,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:15,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-12 00:55:15,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:15,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-12 00:55:15,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-12 00:55:15,155 INFO L87 Difference]: Start difference. First operand 1929 states and 2495 transitions. Second operand has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:15,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:15,467 INFO L93 Difference]: Finished difference Result 2595 states and 3424 transitions. [2024-11-12 00:55:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 00:55:15,468 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-12 00:55:15,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:15,471 INFO L225 Difference]: With dead ends: 2595 [2024-11-12 00:55:15,471 INFO L226 Difference]: Without dead ends: 2090 [2024-11-12 00:55:15,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-12 00:55:15,472 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 108 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:15,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1627 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 00:55:15,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2024-11-12 00:55:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1951. [2024-11-12 00:55:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1950 states have (on average 1.2933333333333332) internal successors, (2522), 1950 states have internal predecessors, (2522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:15,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2522 transitions. [2024-11-12 00:55:15,494 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2522 transitions. Word has length 59 [2024-11-12 00:55:15,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:15,494 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 2522 transitions. [2024-11-12 00:55:15,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:15,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2522 transitions. [2024-11-12 00:55:15,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 00:55:15,496 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:15,496 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:15,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-12 00:55:15,497 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:15,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:15,497 INFO L85 PathProgramCache]: Analyzing trace with hash 256401501, now seen corresponding path program 1 times [2024-11-12 00:55:15,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:15,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426035005] [2024-11-12 00:55:15,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:15,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:16,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:16,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:16,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426035005] [2024-11-12 00:55:16,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426035005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:16,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:16,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 00:55:16,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415796792] [2024-11-12 00:55:16,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:16,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 00:55:16,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:16,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 00:55:16,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 00:55:16,013 INFO L87 Difference]: Start difference. First operand 1951 states and 2522 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:16,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:16,080 INFO L93 Difference]: Finished difference Result 2635 states and 3461 transitions. [2024-11-12 00:55:16,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 00:55:16,080 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-12 00:55:16,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:16,083 INFO L225 Difference]: With dead ends: 2635 [2024-11-12 00:55:16,083 INFO L226 Difference]: Without dead ends: 2027 [2024-11-12 00:55:16,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-12 00:55:16,084 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 30 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:16,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 970 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:16,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-12 00:55:16,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1787. [2024-11-12 00:55:16,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1787 states, 1786 states have (on average 1.3051511758118701) internal successors, (2331), 1786 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:16,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 2331 transitions. [2024-11-12 00:55:16,097 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 2331 transitions. Word has length 60 [2024-11-12 00:55:16,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:16,097 INFO L471 AbstractCegarLoop]: Abstraction has 1787 states and 2331 transitions. [2024-11-12 00:55:16,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:16,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 2331 transitions. [2024-11-12 00:55:16,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 00:55:16,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:16,099 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:16,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-12 00:55:16,100 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:16,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:16,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1603201244, now seen corresponding path program 1 times [2024-11-12 00:55:16,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:16,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843333070] [2024-11-12 00:55:16,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:16,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:16,278 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:16,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:16,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843333070] [2024-11-12 00:55:16,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843333070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:16,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:16,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:55:16,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237619445] [2024-11-12 00:55:16,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:16,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:55:16,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:16,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:55:16,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:55:16,280 INFO L87 Difference]: Start difference. First operand 1787 states and 2331 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:16,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:16,405 INFO L93 Difference]: Finished difference Result 2489 states and 3281 transitions. [2024-11-12 00:55:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 00:55:16,406 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-12 00:55:16,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:16,407 INFO L225 Difference]: With dead ends: 2489 [2024-11-12 00:55:16,407 INFO L226 Difference]: Without dead ends: 1661 [2024-11-12 00:55:16,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:55:16,408 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 113 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:16,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 367 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:16,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2024-11-12 00:55:16,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1629. [2024-11-12 00:55:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.2813267813267812) internal successors, (2086), 1628 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:16,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2086 transitions. [2024-11-12 00:55:16,424 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2086 transitions. Word has length 60 [2024-11-12 00:55:16,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:16,425 INFO L471 AbstractCegarLoop]: Abstraction has 1629 states and 2086 transitions. [2024-11-12 00:55:16,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:16,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2086 transitions. [2024-11-12 00:55:16,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 00:55:16,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:16,427 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:16,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-12 00:55:16,427 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:16,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1801633791, now seen corresponding path program 1 times [2024-11-12 00:55:16,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:16,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359484995] [2024-11-12 00:55:16,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:16,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:16,823 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:16,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:16,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359484995] [2024-11-12 00:55:16,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359484995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:16,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:16,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 00:55:16,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945060550] [2024-11-12 00:55:16,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:16,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 00:55:16,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:16,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 00:55:16,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-12 00:55:16,824 INFO L87 Difference]: Start difference. First operand 1629 states and 2086 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:16,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:16,881 INFO L93 Difference]: Finished difference Result 2168 states and 2823 transitions. [2024-11-12 00:55:16,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 00:55:16,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-12 00:55:16,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:16,883 INFO L225 Difference]: With dead ends: 2168 [2024-11-12 00:55:16,884 INFO L226 Difference]: Without dead ends: 1669 [2024-11-12 00:55:16,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-12 00:55:16,885 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 36 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:16,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 714 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:55:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2024-11-12 00:55:16,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1629. [2024-11-12 00:55:16,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.2751842751842752) internal successors, (2076), 1628 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2076 transitions. [2024-11-12 00:55:16,897 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2076 transitions. Word has length 60 [2024-11-12 00:55:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:16,897 INFO L471 AbstractCegarLoop]: Abstraction has 1629 states and 2076 transitions. [2024-11-12 00:55:16,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:16,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2076 transitions. [2024-11-12 00:55:16,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 00:55:16,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:16,898 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:16,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-12 00:55:16,899 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:16,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:16,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1872766743, now seen corresponding path program 1 times [2024-11-12 00:55:16,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:16,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419719817] [2024-11-12 00:55:16,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:16,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:17,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:17,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419719817] [2024-11-12 00:55:17,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419719817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:17,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:17,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-12 00:55:17,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364193904] [2024-11-12 00:55:17,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:17,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 00:55:17,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:17,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 00:55:17,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-12 00:55:17,411 INFO L87 Difference]: Start difference. First operand 1629 states and 2076 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:17,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:17,510 INFO L93 Difference]: Finished difference Result 2102 states and 2746 transitions. [2024-11-12 00:55:17,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 00:55:17,510 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-12 00:55:17,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:17,512 INFO L225 Difference]: With dead ends: 2102 [2024-11-12 00:55:17,512 INFO L226 Difference]: Without dead ends: 1654 [2024-11-12 00:55:17,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-12 00:55:17,513 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 47 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:17,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 995 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:17,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2024-11-12 00:55:17,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1635. [2024-11-12 00:55:17,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1634 states have (on average 1.2760097919216646) internal successors, (2085), 1634 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2085 transitions. [2024-11-12 00:55:17,524 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2085 transitions. Word has length 60 [2024-11-12 00:55:17,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:17,524 INFO L471 AbstractCegarLoop]: Abstraction has 1635 states and 2085 transitions. [2024-11-12 00:55:17,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:17,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2085 transitions. [2024-11-12 00:55:17,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 00:55:17,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:17,526 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:17,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-12 00:55:17,526 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:17,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:17,527 INFO L85 PathProgramCache]: Analyzing trace with hash -914149788, now seen corresponding path program 1 times [2024-11-12 00:55:17,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:17,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832170825] [2024-11-12 00:55:17,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:17,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:17,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:17,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832170825] [2024-11-12 00:55:17,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832170825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:17,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:17,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-12 00:55:17,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368802848] [2024-11-12 00:55:17,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:17,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 00:55:17,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:17,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 00:55:17,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-12 00:55:17,931 INFO L87 Difference]: Start difference. First operand 1635 states and 2085 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:18,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:18,029 INFO L93 Difference]: Finished difference Result 2085 states and 2723 transitions. [2024-11-12 00:55:18,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 00:55:18,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-12 00:55:18,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:18,030 INFO L225 Difference]: With dead ends: 2085 [2024-11-12 00:55:18,030 INFO L226 Difference]: Without dead ends: 1631 [2024-11-12 00:55:18,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-12 00:55:18,032 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 46 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:18,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1238 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:18,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-11-12 00:55:18,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1569. [2024-11-12 00:55:18,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 1.2831632653061225) internal successors, (2012), 1568 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:18,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2012 transitions. [2024-11-12 00:55:18,047 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2012 transitions. Word has length 60 [2024-11-12 00:55:18,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:18,048 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2012 transitions. [2024-11-12 00:55:18,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:18,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2012 transitions. [2024-11-12 00:55:18,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 00:55:18,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:18,049 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:18,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-12 00:55:18,050 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:18,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:18,050 INFO L85 PathProgramCache]: Analyzing trace with hash -145929666, now seen corresponding path program 1 times [2024-11-12 00:55:18,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:18,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705008010] [2024-11-12 00:55:18,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:18,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:18,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:18,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:18,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705008010] [2024-11-12 00:55:18,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705008010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:18,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:18,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-12 00:55:18,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830672811] [2024-11-12 00:55:18,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:18,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 00:55:18,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:18,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 00:55:18,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-12 00:55:18,571 INFO L87 Difference]: Start difference. First operand 1569 states and 2012 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:18,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:18,666 INFO L93 Difference]: Finished difference Result 2064 states and 2711 transitions. [2024-11-12 00:55:18,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 00:55:18,666 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-12 00:55:18,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:18,668 INFO L225 Difference]: With dead ends: 2064 [2024-11-12 00:55:18,668 INFO L226 Difference]: Without dead ends: 1612 [2024-11-12 00:55:18,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-12 00:55:18,669 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 70 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:18,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1005 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:18,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2024-11-12 00:55:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1565. [2024-11-12 00:55:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 1.2858056265984654) internal successors, (2011), 1564 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2011 transitions. [2024-11-12 00:55:18,680 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2011 transitions. Word has length 60 [2024-11-12 00:55:18,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:18,680 INFO L471 AbstractCegarLoop]: Abstraction has 1565 states and 2011 transitions. [2024-11-12 00:55:18,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:18,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2011 transitions. [2024-11-12 00:55:18,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 00:55:18,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:18,681 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:18,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-12 00:55:18,681 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:18,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:18,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1362121099, now seen corresponding path program 1 times [2024-11-12 00:55:18,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:18,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128794580] [2024-11-12 00:55:18,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:18,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:18,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:18,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128794580] [2024-11-12 00:55:18,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128794580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:18,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:18,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:55:18,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056806988] [2024-11-12 00:55:18,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:18,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:55:18,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:18,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:55:18,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:55:18,804 INFO L87 Difference]: Start difference. First operand 1565 states and 2011 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:18,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:18,904 INFO L93 Difference]: Finished difference Result 2245 states and 2916 transitions. [2024-11-12 00:55:18,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 00:55:18,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-12 00:55:18,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:18,906 INFO L225 Difference]: With dead ends: 2245 [2024-11-12 00:55:18,906 INFO L226 Difference]: Without dead ends: 1529 [2024-11-12 00:55:18,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:55:18,907 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:18,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 368 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:18,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-12 00:55:18,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1482. [2024-11-12 00:55:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 1.274139095205942) internal successors, (1887), 1481 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1887 transitions. [2024-11-12 00:55:18,919 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1887 transitions. Word has length 60 [2024-11-12 00:55:18,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:18,919 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1887 transitions. [2024-11-12 00:55:18,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:18,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1887 transitions. [2024-11-12 00:55:18,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 00:55:18,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:18,921 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:18,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-12 00:55:18,921 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:18,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:18,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1885657347, now seen corresponding path program 1 times [2024-11-12 00:55:18,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:18,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780708666] [2024-11-12 00:55:18,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:18,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:19,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:19,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780708666] [2024-11-12 00:55:19,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780708666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:19,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:19,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-12 00:55:19,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458442714] [2024-11-12 00:55:19,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:19,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 00:55:19,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:19,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 00:55:19,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:55:19,578 INFO L87 Difference]: Start difference. First operand 1482 states and 1887 transitions. Second operand has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:19,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:19,724 INFO L93 Difference]: Finished difference Result 2010 states and 2609 transitions. [2024-11-12 00:55:19,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 00:55:19,725 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-12 00:55:19,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:19,726 INFO L225 Difference]: With dead ends: 2010 [2024-11-12 00:55:19,726 INFO L226 Difference]: Without dead ends: 1600 [2024-11-12 00:55:19,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-12 00:55:19,727 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 90 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:19,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1352 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:19,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-12 00:55:19,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1515. [2024-11-12 00:55:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1514 states have (on average 1.2760898282694848) internal successors, (1932), 1514 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:19,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1932 transitions. [2024-11-12 00:55:19,738 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1932 transitions. Word has length 60 [2024-11-12 00:55:19,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:19,738 INFO L471 AbstractCegarLoop]: Abstraction has 1515 states and 1932 transitions. [2024-11-12 00:55:19,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:19,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1932 transitions. [2024-11-12 00:55:19,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 00:55:19,739 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:19,739 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:19,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-12 00:55:19,740 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:19,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:19,740 INFO L85 PathProgramCache]: Analyzing trace with hash 851324396, now seen corresponding path program 1 times [2024-11-12 00:55:19,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:19,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523979863] [2024-11-12 00:55:19,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:19,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:55:19,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:55:19,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:55:19,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523979863] [2024-11-12 00:55:19,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523979863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:55:19,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:55:19,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:55:19,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613049601] [2024-11-12 00:55:19,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:55:19,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:55:19,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:55:19,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:55:19,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:55:19,899 INFO L87 Difference]: Start difference. First operand 1515 states and 1932 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:55:20,013 INFO L93 Difference]: Finished difference Result 2062 states and 2671 transitions. [2024-11-12 00:55:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 00:55:20,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-12 00:55:20,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:55:20,015 INFO L225 Difference]: With dead ends: 2062 [2024-11-12 00:55:20,015 INFO L226 Difference]: Without dead ends: 1505 [2024-11-12 00:55:20,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:55:20,016 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 122 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:55:20,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 366 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:55:20,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2024-11-12 00:55:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1482. [2024-11-12 00:55:20,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 1.2687373396353816) internal successors, (1879), 1481 states have internal predecessors, (1879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:20,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1879 transitions. [2024-11-12 00:55:20,025 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1879 transitions. Word has length 60 [2024-11-12 00:55:20,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:55:20,026 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1879 transitions. [2024-11-12 00:55:20,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:55:20,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1879 transitions. [2024-11-12 00:55:20,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 00:55:20,027 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:55:20,027 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 00:55:20,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-12 00:55:20,027 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:55:20,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:55:20,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1283188061, now seen corresponding path program 1 times [2024-11-12 00:55:20,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:55:20,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412791214] [2024-11-12 00:55:20,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:55:20,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:55:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat