./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d128_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d128_e0.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 af10d34bc25f8f546387f00ff90c0f3d18cfb96b0910a0a70e205b15a5847c91 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 22:36:31,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 22:36:31,311 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-12 22:36:31,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 22:36:31,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 22:36:31,351 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 22:36:31,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 22:36:31,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 22:36:31,353 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 22:36:31,355 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 22:36:31,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 22:36:31,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 22:36:31,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 22:36:31,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 22:36:31,359 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 22:36:31,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 22:36:31,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 22:36:31,360 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 22:36:31,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 22:36:31,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 22:36:31,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 22:36:31,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 22:36:31,363 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 22:36:31,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 22:36:31,364 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 22:36:31,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 22:36:31,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 22:36:31,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 22:36:31,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 22:36:31,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:36:31,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 22:36:31,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 22:36:31,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 22:36:31,366 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 22:36:31,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 22:36:31,366 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 22:36:31,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 22:36:31,366 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 22:36:31,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 22:36:31,367 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af10d34bc25f8f546387f00ff90c0f3d18cfb96b0910a0a70e205b15a5847c91 [2024-10-12 22:36:31,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 22:36:31,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 22:36:31,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 22:36:31,627 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 22:36:31,627 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 22:36:31,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d128_e0.c [2024-10-12 22:36:33,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 22:36:33,454 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 22:36:33,455 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d128_e0.c [2024-10-12 22:36:33,476 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ff31a78b/be52f97bbc804ece942f272628cd62f1/FLAG05304c423 [2024-10-12 22:36:33,611 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ff31a78b/be52f97bbc804ece942f272628cd62f1 [2024-10-12 22:36:33,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 22:36:33,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 22:36:33,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 22:36:33,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 22:36:33,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 22:36:33,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:36:33" (1/1) ... [2024-10-12 22:36:33,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d6b695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:33, skipping insertion in model container [2024-10-12 22:36:33,623 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:36:33" (1/1) ... [2024-10-12 22:36:33,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 22:36:33,942 WARN L248 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.circular_pointer_top_w16_d128_e0.c[1281,1294] [2024-10-12 22:36:34,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:36:34,541 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 22:36:34,553 WARN L248 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.circular_pointer_top_w16_d128_e0.c[1281,1294] [2024-10-12 22:36:34,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 22:36:34,885 INFO L204 MainTranslator]: Completed translation [2024-10-12 22:36:34,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34 WrapperNode [2024-10-12 22:36:34,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 22:36:34,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 22:36:34,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 22:36:34,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 22:36:34,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:34,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:36,146 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10271 [2024-10-12 22:36:36,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 22:36:36,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 22:36:36,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 22:36:36,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 22:36:36,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:36,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:36,643 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:36,922 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]. [2024-10-12 22:36:36,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:36,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:37,197 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:37,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:37,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:37,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:37,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 22:36:37,800 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 22:36:37,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 22:36:37,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 22:36:37,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (1/1) ... [2024-10-12 22:36:37,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 22:36:37,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 22:36:37,856 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) [2024-10-12 22:36:37,868 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 [2024-10-12 22:36:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 22:36:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-12 22:36:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-12 22:36:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 22:36:37,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 22:36:37,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 22:36:38,881 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 22:36:38,883 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 22:36:58,203 INFO L? ?]: Removed 5798 outVars from TransFormulas that were not future-live. [2024-10-12 22:36:58,204 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 22:36:58,382 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 22:36:58,384 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 22:36:58,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:36:58 BoogieIcfgContainer [2024-10-12 22:36:58,385 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 22:36:58,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 22:36:58,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 22:36:58,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 22:36:58,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:36:33" (1/3) ... [2024-10-12 22:36:58,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118bcbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:36:58, skipping insertion in model container [2024-10-12 22:36:58,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:36:34" (2/3) ... [2024-10-12 22:36:58,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118bcbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:36:58, skipping insertion in model container [2024-10-12 22:36:58,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:36:58" (3/3) ... [2024-10-12 22:36:58,394 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w16_d128_e0.c [2024-10-12 22:36:58,408 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 22:36:58,409 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 22:36:58,519 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 22:36:58,525 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;@5a98888a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 22:36:58,525 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 22:36:58,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 2789 states, 2783 states have (on average 1.4994610132950055) internal successors, (4173), 2784 states have internal predecessors, (4173), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:36:58,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2024-10-12 22:36:58,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:36:58,575 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:36:58,575 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:36:58,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:36:58,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1731528871, now seen corresponding path program 1 times [2024-10-12 22:36:58,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:36:58,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776370036] [2024-10-12 22:36:58,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:36:58,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:36:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:36:59,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:36:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:36:59,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:36:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:36:59,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:36:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:36:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:36:59,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:36:59,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776370036] [2024-10-12 22:36:59,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776370036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:36:59,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:36:59,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 22:36:59,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693005689] [2024-10-12 22:36:59,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:36:59,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 22:36:59,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:36:59,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 22:36:59,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 22:36:59,939 INFO L87 Difference]: Start difference. First operand has 2789 states, 2783 states have (on average 1.4994610132950055) internal successors, (4173), 2784 states have internal predecessors, (4173), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 292.0) internal successors, (584), 2 states have internal predecessors, (584), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:37:00,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:00,080 INFO L93 Difference]: Finished difference Result 5028 states and 7538 transitions. [2024-10-12 22:37:00,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 22:37:00,083 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 292.0) internal successors, (584), 2 states have internal predecessors, (584), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 596 [2024-10-12 22:37:00,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:00,116 INFO L225 Difference]: With dead ends: 5028 [2024-10-12 22:37:00,116 INFO L226 Difference]: Without dead ends: 2788 [2024-10-12 22:37:00,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 22:37:00,133 INFO L432 NwaCegarLoop]: 4175 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4175 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:00,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4175 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:00,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2024-10-12 22:37:00,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 2788. [2024-10-12 22:37:00,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 2783 states have (on average 1.4983830398850162) internal successors, (4170), 2783 states have internal predecessors, (4170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:00,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 4176 transitions. [2024-10-12 22:37:00,276 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 4176 transitions. Word has length 596 [2024-10-12 22:37:00,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:00,278 INFO L471 AbstractCegarLoop]: Abstraction has 2788 states and 4176 transitions. [2024-10-12 22:37:00,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 292.0) internal successors, (584), 2 states have internal predecessors, (584), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-12 22:37:00,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 4176 transitions. [2024-10-12 22:37:00,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2024-10-12 22:37:00,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:00,294 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:00,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 22:37:00,295 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:00,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:00,297 INFO L85 PathProgramCache]: Analyzing trace with hash -882233375, now seen corresponding path program 1 times [2024-10-12 22:37:00,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:00,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861592263] [2024-10-12 22:37:00,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:00,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:04,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:04,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:04,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:04,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:04,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861592263] [2024-10-12 22:37:04,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861592263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:04,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:04,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:04,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830269036] [2024-10-12 22:37:04,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:04,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:04,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:04,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:04,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:04,328 INFO L87 Difference]: Start difference. First operand 2788 states and 4176 transitions. Second operand has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:04,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:04,458 INFO L93 Difference]: Finished difference Result 2792 states and 4180 transitions. [2024-10-12 22:37:04,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:04,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 596 [2024-10-12 22:37:04,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:04,471 INFO L225 Difference]: With dead ends: 2792 [2024-10-12 22:37:04,472 INFO L226 Difference]: Without dead ends: 2790 [2024-10-12 22:37:04,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:04,476 INFO L432 NwaCegarLoop]: 4173 mSDtfsCounter, 0 mSDsluCounter, 8341 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12514 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:04,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12514 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:04,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2024-10-12 22:37:04,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2790. [2024-10-12 22:37:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2785 states have (on average 1.4980251346499103) internal successors, (4172), 2785 states have internal predecessors, (4172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:04,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 4178 transitions. [2024-10-12 22:37:04,550 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 4178 transitions. Word has length 596 [2024-10-12 22:37:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:04,553 INFO L471 AbstractCegarLoop]: Abstraction has 2790 states and 4178 transitions. [2024-10-12 22:37:04,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 4178 transitions. [2024-10-12 22:37:04,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2024-10-12 22:37:04,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:04,569 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:04,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 22:37:04,570 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:04,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:04,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1577731959, now seen corresponding path program 1 times [2024-10-12 22:37:04,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:04,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129518158] [2024-10-12 22:37:04,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:04,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:06,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:06,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:06,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:06,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:06,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129518158] [2024-10-12 22:37:06,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129518158] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:06,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:06,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:06,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457295262] [2024-10-12 22:37:06,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:06,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:06,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:06,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:06,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:06,710 INFO L87 Difference]: Start difference. First operand 2790 states and 4178 transitions. Second operand has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:08,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:08,225 INFO L93 Difference]: Finished difference Result 6970 states and 10440 transitions. [2024-10-12 22:37:08,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 22:37:08,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 597 [2024-10-12 22:37:08,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:08,237 INFO L225 Difference]: With dead ends: 6970 [2024-10-12 22:37:08,238 INFO L226 Difference]: Without dead ends: 2790 [2024-10-12 22:37:08,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 22:37:08,248 INFO L432 NwaCegarLoop]: 4107 mSDtfsCounter, 9010 mSDsluCounter, 7535 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9010 SdHoareTripleChecker+Valid, 11642 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:08,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9010 Valid, 11642 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 22:37:08,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2024-10-12 22:37:08,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2790. [2024-10-12 22:37:08,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2785 states have (on average 1.4976660682226213) internal successors, (4171), 2785 states have internal predecessors, (4171), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 4177 transitions. [2024-10-12 22:37:08,304 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 4177 transitions. Word has length 597 [2024-10-12 22:37:08,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:08,305 INFO L471 AbstractCegarLoop]: Abstraction has 2790 states and 4177 transitions. [2024-10-12 22:37:08,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:08,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 4177 transitions. [2024-10-12 22:37:08,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-10-12 22:37:08,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:08,318 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:08,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 22:37:08,319 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:08,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:08,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1494888659, now seen corresponding path program 1 times [2024-10-12 22:37:08,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:08,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535410819] [2024-10-12 22:37:08,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:08,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:10,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:10,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:10,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:10,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:10,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535410819] [2024-10-12 22:37:10,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535410819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:10,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:10,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:10,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796016102] [2024-10-12 22:37:10,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:10,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:10,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:10,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:10,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:10,160 INFO L87 Difference]: Start difference. First operand 2790 states and 4177 transitions. Second operand has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:10,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:10,271 INFO L93 Difference]: Finished difference Result 5033 states and 7534 transitions. [2024-10-12 22:37:10,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:10,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 598 [2024-10-12 22:37:10,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:10,283 INFO L225 Difference]: With dead ends: 5033 [2024-10-12 22:37:10,283 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:10,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:10,292 INFO L432 NwaCegarLoop]: 4172 mSDtfsCounter, 0 mSDsluCounter, 8336 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12508 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:10,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12508 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 22:37:10,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:10,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.497308934337998) internal successors, (4173), 2787 states have internal predecessors, (4173), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:10,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4179 transitions. [2024-10-12 22:37:10,360 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4179 transitions. Word has length 598 [2024-10-12 22:37:10,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:10,364 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4179 transitions. [2024-10-12 22:37:10,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4179 transitions. [2024-10-12 22:37:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2024-10-12 22:37:10,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:10,373 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:10,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 22:37:10,373 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:10,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:10,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2001054032, now seen corresponding path program 1 times [2024-10-12 22:37:10,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:10,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855002568] [2024-10-12 22:37:10,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:10,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:12,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:12,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:12,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:12,719 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:12,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:12,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855002568] [2024-10-12 22:37:12,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855002568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:12,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:12,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 22:37:12,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466268874] [2024-10-12 22:37:12,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:12,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 22:37:12,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:12,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 22:37:12,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 22:37:12,724 INFO L87 Difference]: Start difference. First operand 2792 states and 4179 transitions. Second operand has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:13,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:13,896 INFO L93 Difference]: Finished difference Result 5035 states and 7535 transitions. [2024-10-12 22:37:13,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:13,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 599 [2024-10-12 22:37:13,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:13,909 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:13,910 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:13,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:13,916 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 3640 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3640 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:13,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3640 Valid, 7066 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 22:37:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:13,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:13,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4969501255830642) internal successors, (4172), 2787 states have internal predecessors, (4172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:13,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4178 transitions. [2024-10-12 22:37:13,983 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4178 transitions. Word has length 599 [2024-10-12 22:37:13,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:13,984 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4178 transitions. [2024-10-12 22:37:13,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:13,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4178 transitions. [2024-10-12 22:37:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2024-10-12 22:37:13,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:13,995 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:13,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 22:37:13,995 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:13,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:13,996 INFO L85 PathProgramCache]: Analyzing trace with hash 426616347, now seen corresponding path program 1 times [2024-10-12 22:37:13,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:13,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231410995] [2024-10-12 22:37:13,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:13,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:15,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:15,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:15,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:15,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:15,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231410995] [2024-10-12 22:37:15,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231410995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:15,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:15,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:15,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267713652] [2024-10-12 22:37:15,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:15,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:15,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:15,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:15,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:15,711 INFO L87 Difference]: Start difference. First operand 2792 states and 4178 transitions. Second operand has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:16,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:16,704 INFO L93 Difference]: Finished difference Result 5119 states and 7658 transitions. [2024-10-12 22:37:16,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 22:37:16,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 600 [2024-10-12 22:37:16,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:16,716 INFO L225 Difference]: With dead ends: 5119 [2024-10-12 22:37:16,717 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:16,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 22:37:16,723 INFO L432 NwaCegarLoop]: 4125 mSDtfsCounter, 3807 mSDsluCounter, 7662 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3807 SdHoareTripleChecker+Valid, 11787 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:16,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3807 Valid, 11787 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 22:37:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:16,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:16,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4965913168281306) internal successors, (4171), 2787 states have internal predecessors, (4171), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4177 transitions. [2024-10-12 22:37:16,805 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4177 transitions. Word has length 600 [2024-10-12 22:37:16,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:16,807 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4177 transitions. [2024-10-12 22:37:16,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:16,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4177 transitions. [2024-10-12 22:37:16,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2024-10-12 22:37:16,822 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:16,823 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:16,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 22:37:16,823 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:16,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:16,824 INFO L85 PathProgramCache]: Analyzing trace with hash -739168918, now seen corresponding path program 1 times [2024-10-12 22:37:16,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:16,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564864125] [2024-10-12 22:37:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:16,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:18,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:18,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:18,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:18,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:18,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564864125] [2024-10-12 22:37:18,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564864125] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:18,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:18,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:18,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746907381] [2024-10-12 22:37:18,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:18,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:18,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:18,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:18,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:18,626 INFO L87 Difference]: Start difference. First operand 2792 states and 4177 transitions. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:19,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:19,627 INFO L93 Difference]: Finished difference Result 5035 states and 7531 transitions. [2024-10-12 22:37:19,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:19,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 601 [2024-10-12 22:37:19,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:19,639 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:19,639 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:19,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:19,644 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7879 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7882 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:19,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7882 Valid, 7066 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 22:37:19,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:19,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:19,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.496232508073197) internal successors, (4170), 2787 states have internal predecessors, (4170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:19,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4176 transitions. [2024-10-12 22:37:19,710 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4176 transitions. Word has length 601 [2024-10-12 22:37:19,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:19,711 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4176 transitions. [2024-10-12 22:37:19,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:19,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4176 transitions. [2024-10-12 22:37:19,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2024-10-12 22:37:19,719 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:19,719 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:19,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 22:37:19,720 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:19,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:19,720 INFO L85 PathProgramCache]: Analyzing trace with hash 631006690, now seen corresponding path program 1 times [2024-10-12 22:37:19,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:19,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088243486] [2024-10-12 22:37:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:19,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:21,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:21,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:21,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:21,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:21,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088243486] [2024-10-12 22:37:21,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088243486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:21,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:21,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:21,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134642680] [2024-10-12 22:37:21,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:21,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:21,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:21,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:21,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:21,070 INFO L87 Difference]: Start difference. First operand 2792 states and 4176 transitions. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:22,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:22,067 INFO L93 Difference]: Finished difference Result 5035 states and 7529 transitions. [2024-10-12 22:37:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:22,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 602 [2024-10-12 22:37:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:22,077 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:22,077 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:22,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:22,082 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7871 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7874 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:22,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7874 Valid, 7066 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 22:37:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:22,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:22,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4958736993182633) internal successors, (4169), 2787 states have internal predecessors, (4169), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4175 transitions. [2024-10-12 22:37:22,137 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4175 transitions. Word has length 602 [2024-10-12 22:37:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:22,139 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4175 transitions. [2024-10-12 22:37:22,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:22,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4175 transitions. [2024-10-12 22:37:22,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2024-10-12 22:37:22,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:22,145 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:22,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 22:37:22,145 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:22,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:22,146 INFO L85 PathProgramCache]: Analyzing trace with hash 848322577, now seen corresponding path program 1 times [2024-10-12 22:37:22,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:22,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413327110] [2024-10-12 22:37:22,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:22,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:23,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:23,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:23,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:23,292 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:23,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:23,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413327110] [2024-10-12 22:37:23,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413327110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:23,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:23,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:23,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688376093] [2024-10-12 22:37:23,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:23,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:23,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:23,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:23,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:23,294 INFO L87 Difference]: Start difference. First operand 2792 states and 4175 transitions. Second operand has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:24,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:24,140 INFO L93 Difference]: Finished difference Result 5035 states and 7527 transitions. [2024-10-12 22:37:24,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:24,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 603 [2024-10-12 22:37:24,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:24,152 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:24,152 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:24,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:24,157 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4154 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4157 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:24,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4157 Valid, 7072 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 22:37:24,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:24,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:24,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4955148905633298) internal successors, (4168), 2787 states have internal predecessors, (4168), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4174 transitions. [2024-10-12 22:37:24,206 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4174 transitions. Word has length 603 [2024-10-12 22:37:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:24,207 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4174 transitions. [2024-10-12 22:37:24,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:24,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4174 transitions. [2024-10-12 22:37:24,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2024-10-12 22:37:24,213 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:24,213 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:24,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 22:37:24,214 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:24,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:24,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1552321833, now seen corresponding path program 1 times [2024-10-12 22:37:24,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:24,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688486855] [2024-10-12 22:37:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:24,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:25,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:25,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:25,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:25,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:25,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688486855] [2024-10-12 22:37:25,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688486855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:25,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:25,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:25,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74445307] [2024-10-12 22:37:25,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:25,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:25,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:25,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:25,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:25,237 INFO L87 Difference]: Start difference. First operand 2792 states and 4174 transitions. Second operand has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:26,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:26,191 INFO L93 Difference]: Finished difference Result 5035 states and 7525 transitions. [2024-10-12 22:37:26,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:26,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 604 [2024-10-12 22:37:26,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:26,204 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:26,204 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:26,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:26,208 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7855 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7858 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:26,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7858 Valid, 7066 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 22:37:26,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:26,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:26,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4951560818083962) internal successors, (4167), 2787 states have internal predecessors, (4167), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:26,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4173 transitions. [2024-10-12 22:37:26,254 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4173 transitions. Word has length 604 [2024-10-12 22:37:26,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:26,255 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4173 transitions. [2024-10-12 22:37:26,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:26,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4173 transitions. [2024-10-12 22:37:26,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2024-10-12 22:37:26,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:26,260 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:26,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 22:37:26,260 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:26,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:26,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1846022712, now seen corresponding path program 1 times [2024-10-12 22:37:26,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:26,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358249344] [2024-10-12 22:37:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:26,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:27,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:27,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:27,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:27,437 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:27,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:27,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358249344] [2024-10-12 22:37:27,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358249344] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:27,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:27,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:27,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184990854] [2024-10-12 22:37:27,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:27,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:27,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:27,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:27,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:27,440 INFO L87 Difference]: Start difference. First operand 2792 states and 4173 transitions. Second operand has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:28,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:28,283 INFO L93 Difference]: Finished difference Result 5035 states and 7523 transitions. [2024-10-12 22:37:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:28,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 605 [2024-10-12 22:37:28,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:28,290 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:28,290 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:28,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:28,295 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7847 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7850 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:28,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7850 Valid, 7066 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 22:37:28,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:28,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:28,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4947972730534624) internal successors, (4166), 2787 states have internal predecessors, (4166), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:28,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4172 transitions. [2024-10-12 22:37:28,347 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4172 transitions. Word has length 605 [2024-10-12 22:37:28,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:28,348 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4172 transitions. [2024-10-12 22:37:28,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:28,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4172 transitions. [2024-10-12 22:37:28,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2024-10-12 22:37:28,353 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:28,353 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:28,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 22:37:28,354 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:28,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:28,354 INFO L85 PathProgramCache]: Analyzing trace with hash -48178192, now seen corresponding path program 1 times [2024-10-12 22:37:28,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:28,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660952535] [2024-10-12 22:37:28,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:28,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:29,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:29,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:29,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:29,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:29,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660952535] [2024-10-12 22:37:29,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660952535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:29,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:29,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:29,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055453217] [2024-10-12 22:37:29,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:29,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:29,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:29,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:29,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:29,447 INFO L87 Difference]: Start difference. First operand 2792 states and 4172 transitions. Second operand has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:30,300 INFO L93 Difference]: Finished difference Result 5035 states and 7521 transitions. [2024-10-12 22:37:30,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:30,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 606 [2024-10-12 22:37:30,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:30,306 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:30,306 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:30,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:30,309 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4142 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4145 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:30,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4145 Valid, 7072 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 22:37:30,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:30,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.494438464298529) internal successors, (4165), 2787 states have internal predecessors, (4165), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4171 transitions. [2024-10-12 22:37:30,351 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4171 transitions. Word has length 606 [2024-10-12 22:37:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:30,352 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4171 transitions. [2024-10-12 22:37:30,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:30,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4171 transitions. [2024-10-12 22:37:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-10-12 22:37:30,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:30,357 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:30,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 22:37:30,357 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:30,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1175389151, now seen corresponding path program 1 times [2024-10-12 22:37:30,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:30,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105757845] [2024-10-12 22:37:30,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:30,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:31,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:31,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:31,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:31,525 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:31,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:31,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105757845] [2024-10-12 22:37:31,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105757845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:31,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:31,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:31,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964305835] [2024-10-12 22:37:31,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:31,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:31,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:31,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:31,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:31,528 INFO L87 Difference]: Start difference. First operand 2792 states and 4171 transitions. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:32,340 INFO L93 Difference]: Finished difference Result 5035 states and 7519 transitions. [2024-10-12 22:37:32,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:32,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 607 [2024-10-12 22:37:32,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:32,347 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:32,347 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:32,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:32,351 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7831 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7834 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:32,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7834 Valid, 7066 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 22:37:32,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:32,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:32,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4940796555435953) internal successors, (4164), 2787 states have internal predecessors, (4164), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:32,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4170 transitions. [2024-10-12 22:37:32,390 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4170 transitions. Word has length 607 [2024-10-12 22:37:32,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:32,391 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4170 transitions. [2024-10-12 22:37:32,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:32,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4170 transitions. [2024-10-12 22:37:32,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2024-10-12 22:37:32,397 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:32,397 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:32,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 22:37:32,397 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:32,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:32,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1300238903, now seen corresponding path program 1 times [2024-10-12 22:37:32,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:32,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197378161] [2024-10-12 22:37:32,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:32,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:33,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:33,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:33,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:33,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:33,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197378161] [2024-10-12 22:37:33,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197378161] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:33,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:33,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:33,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003501711] [2024-10-12 22:37:33,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:33,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:33,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:33,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:33,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:33,518 INFO L87 Difference]: Start difference. First operand 2792 states and 4170 transitions. Second operand has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:34,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:34,339 INFO L93 Difference]: Finished difference Result 5035 states and 7517 transitions. [2024-10-12 22:37:34,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:34,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 608 [2024-10-12 22:37:34,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:34,343 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:34,343 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:34,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:34,348 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4134 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:34,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4137 Valid, 7072 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 22:37:34,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:34,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4937208467886616) internal successors, (4163), 2787 states have internal predecessors, (4163), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:34,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4169 transitions. [2024-10-12 22:37:34,388 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4169 transitions. Word has length 608 [2024-10-12 22:37:34,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:34,389 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4169 transitions. [2024-10-12 22:37:34,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4169 transitions. [2024-10-12 22:37:34,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2024-10-12 22:37:34,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:34,394 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:34,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 22:37:34,395 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:34,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:34,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1828451590, now seen corresponding path program 1 times [2024-10-12 22:37:34,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:34,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717976820] [2024-10-12 22:37:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:34,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:35,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:35,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:35,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:35,508 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:35,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:35,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717976820] [2024-10-12 22:37:35,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717976820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:35,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:35,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:35,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060083047] [2024-10-12 22:37:35,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:35,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:35,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:35,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:35,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:35,510 INFO L87 Difference]: Start difference. First operand 2792 states and 4169 transitions. Second operand has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:36,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:36,317 INFO L93 Difference]: Finished difference Result 5035 states and 7515 transitions. [2024-10-12 22:37:36,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:36,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 609 [2024-10-12 22:37:36,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:36,322 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:36,322 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:36,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:36,327 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7815 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7818 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:36,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7818 Valid, 7066 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 22:37:36,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:36,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:36,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.493362038033728) internal successors, (4162), 2787 states have internal predecessors, (4162), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4168 transitions. [2024-10-12 22:37:36,363 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4168 transitions. Word has length 609 [2024-10-12 22:37:36,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:36,364 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4168 transitions. [2024-10-12 22:37:36,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:36,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4168 transitions. [2024-10-12 22:37:36,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2024-10-12 22:37:36,369 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:36,369 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:36,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 22:37:36,369 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:36,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:36,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2061037566, now seen corresponding path program 1 times [2024-10-12 22:37:36,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:36,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784220318] [2024-10-12 22:37:36,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:36,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:37,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:37,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:37,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:37,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:37,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:37,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784220318] [2024-10-12 22:37:37,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784220318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:37,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:37,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:37,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243914157] [2024-10-12 22:37:37,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:37,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:37,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:37,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:37,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:37,531 INFO L87 Difference]: Start difference. First operand 2792 states and 4168 transitions. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:38,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:38,335 INFO L93 Difference]: Finished difference Result 5035 states and 7513 transitions. [2024-10-12 22:37:38,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:38,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 610 [2024-10-12 22:37:38,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:38,342 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:38,342 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:38,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:38,347 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7807 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7810 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:38,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7810 Valid, 7066 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 22:37:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:38,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4930032292787945) internal successors, (4161), 2787 states have internal predecessors, (4161), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4167 transitions. [2024-10-12 22:37:38,387 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4167 transitions. Word has length 610 [2024-10-12 22:37:38,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:38,388 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4167 transitions. [2024-10-12 22:37:38,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:38,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4167 transitions. [2024-10-12 22:37:38,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2024-10-12 22:37:38,393 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:38,394 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:38,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 22:37:38,394 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:38,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:38,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2017090131, now seen corresponding path program 1 times [2024-10-12 22:37:38,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:38,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367813736] [2024-10-12 22:37:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:38,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:39,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-12 22:37:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:39,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 22:37:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:39,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 22:37:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 22:37:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-12 22:37:39,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 22:37:39,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367813736] [2024-10-12 22:37:39,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367813736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 22:37:39,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 22:37:39,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 22:37:39,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491671251] [2024-10-12 22:37:39,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 22:37:39,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 22:37:39,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 22:37:39,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 22:37:39,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 22:37:39,649 INFO L87 Difference]: Start difference. First operand 2792 states and 4167 transitions. Second operand has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:40,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 22:37:40,486 INFO L93 Difference]: Finished difference Result 5035 states and 7511 transitions. [2024-10-12 22:37:40,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 22:37:40,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 611 [2024-10-12 22:37:40,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 22:37:40,490 INFO L225 Difference]: With dead ends: 5035 [2024-10-12 22:37:40,490 INFO L226 Difference]: Without dead ends: 2792 [2024-10-12 22:37:40,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-12 22:37:40,494 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7799 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7802 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 22:37:40,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7802 Valid, 7066 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 22:37:40,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-12 22:37:40,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-12 22:37:40,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4926444205238607) internal successors, (4160), 2787 states have internal predecessors, (4160), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 22:37:40,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4166 transitions. [2024-10-12 22:37:40,531 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4166 transitions. Word has length 611 [2024-10-12 22:37:40,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 22:37:40,531 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4166 transitions. [2024-10-12 22:37:40,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-12 22:37:40,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4166 transitions. [2024-10-12 22:37:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2024-10-12 22:37:40,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 22:37:40,537 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 22:37:40,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 22:37:40,537 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 22:37:40,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 22:37:40,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2038445381, now seen corresponding path program 1 times [2024-10-12 22:37:40,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 22:37:40,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777437580] [2024-10-12 22:37:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 22:37:40,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 22:37:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat