./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem06_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem06_label05.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2ea12ffc975ada753ad94325ec0fcf0e28ffab5978a0a25a285468bb1ba6196d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-10 22:52:11,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-10 22:52:11,473 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-10 22:52:11,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-10 22:52:11,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-10 22:52:11,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-10 22:52:11,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-10 22:52:11,496 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-10 22:52:11,496 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-10 22:52:11,497 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-10 22:52:11,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-10 22:52:11,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-10 22:52:11,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-10 22:52:11,501 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-10 22:52:11,501 INFO L153 SettingsManager]: * Use SBE=true [2024-10-10 22:52:11,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-10 22:52:11,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-10 22:52:11,501 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-10 22:52:11,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-10 22:52:11,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-10 22:52:11,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-10 22:52:11,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-10 22:52:11,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-10 22:52:11,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-10 22:52:11,504 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-10 22:52:11,504 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-10 22:52:11,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-10 22:52:11,504 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-10 22:52:11,505 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-10 22:52:11,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-10 22:52:11,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-10 22:52:11,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-10 22:52:11,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 22:52:11,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-10 22:52:11,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-10 22:52:11,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-10 22:52:11,506 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-10 22:52:11,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-10 22:52:11,506 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-10 22:52:11,506 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-10 22:52:11,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-10 22:52:11,508 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-10 22:52:11,508 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ea12ffc975ada753ad94325ec0fcf0e28ffab5978a0a25a285468bb1ba6196d [2024-10-10 22:52:11,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-10 22:52:11,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-10 22:52:11,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-10 22:52:11,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-10 22:52:11,715 INFO L274 PluginConnector]: CDTParser initialized [2024-10-10 22:52:11,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem06_label05.c [2024-10-10 22:52:12,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-10 22:52:13,383 INFO L384 CDTParser]: Found 1 translation units. [2024-10-10 22:52:13,383 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem06_label05.c [2024-10-10 22:52:13,432 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f063dc3e7/23de26e480a4448aa2a37512b1f4b002/FLAG166a3d490 [2024-10-10 22:52:13,488 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f063dc3e7/23de26e480a4448aa2a37512b1f4b002 [2024-10-10 22:52:13,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-10 22:52:13,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-10 22:52:13,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-10 22:52:13,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-10 22:52:13,498 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-10 22:52:13,499 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:52:13" (1/1) ... [2024-10-10 22:52:13,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ab01ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:13, skipping insertion in model container [2024-10-10 22:52:13,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:52:13" (1/1) ... [2024-10-10 22:52:13,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-10 22:52:14,595 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/eca-rers2012/Problem06_label05.c[332174,332187] [2024-10-10 22:52:14,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 22:52:14,621 INFO L200 MainTranslator]: Completed pre-run [2024-10-10 22:52:15,160 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/eca-rers2012/Problem06_label05.c[332174,332187] [2024-10-10 22:52:15,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 22:52:15,238 INFO L204 MainTranslator]: Completed translation [2024-10-10 22:52:15,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15 WrapperNode [2024-10-10 22:52:15,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-10 22:52:15,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-10 22:52:15,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-10 22:52:15,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-10 22:52:15,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,477 INFO L138 Inliner]: procedures = 18, calls = 12, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 10178 [2024-10-10 22:52:15,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-10 22:52:15,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-10 22:52:15,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-10 22:52:15,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-10 22:52:15,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,651 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]. [2024-10-10 22:52:15,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-10 22:52:15,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-10 22:52:15,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-10 22:52:15,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-10 22:52:15,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (1/1) ... [2024-10-10 22:52:15,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 22:52:15,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 22:52:15,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-10 22:52:15,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-10 22:52:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-10 22:52:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-10 22:52:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-10 22:52:16,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-10 22:52:16,174 INFO L238 CfgBuilder]: Building ICFG [2024-10-10 22:52:16,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-10 22:52:21,065 INFO L? ?]: Removed 929 outVars from TransFormulas that were not future-live. [2024-10-10 22:52:21,065 INFO L287 CfgBuilder]: Performing block encoding [2024-10-10 22:52:21,123 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-10 22:52:21,123 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-10 22:52:21,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:52:21 BoogieIcfgContainer [2024-10-10 22:52:21,124 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-10 22:52:21,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-10 22:52:21,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-10 22:52:21,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-10 22:52:21,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 10:52:13" (1/3) ... [2024-10-10 22:52:21,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9f07e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:52:21, skipping insertion in model container [2024-10-10 22:52:21,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:52:15" (2/3) ... [2024-10-10 22:52:21,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9f07e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:52:21, skipping insertion in model container [2024-10-10 22:52:21,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:52:21" (3/3) ... [2024-10-10 22:52:21,130 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label05.c [2024-10-10 22:52:21,141 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-10 22:52:21,142 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-10 22:52:21,214 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-10 22:52:21,220 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;@6464811c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-10 22:52:21,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-10 22:52:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 1228 states, 1226 states have (on average 1.900489396411093) internal successors, (2330), 1227 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:21,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 945 [2024-10-10 22:52:21,263 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:52:21,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:52:21,265 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:52:21,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:52:21,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1869697542, now seen corresponding path program 1 times [2024-10-10 22:52:21,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:52:21,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777616051] [2024-10-10 22:52:21,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:52:21,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:52:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:52:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:52:22,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:52:22,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777616051] [2024-10-10 22:52:22,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777616051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:52:22,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:52:22,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:52:22,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996124119] [2024-10-10 22:52:22,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:52:22,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-10 22:52:22,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:52:22,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-10 22:52:22,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 22:52:22,557 INFO L87 Difference]: Start difference. First operand has 1228 states, 1226 states have (on average 1.900489396411093) internal successors, (2330), 1227 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 472.0) internal successors, (944), 2 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:22,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:52:22,640 INFO L93 Difference]: Finished difference Result 2455 states and 4659 transitions. [2024-10-10 22:52:22,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-10 22:52:22,643 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 472.0) internal successors, (944), 2 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 944 [2024-10-10 22:52:22,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:52:22,667 INFO L225 Difference]: With dead ends: 2455 [2024-10-10 22:52:22,667 INFO L226 Difference]: Without dead ends: 1226 [2024-10-10 22:52:22,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 22:52:22,675 INFO L432 NwaCegarLoop]: 2249 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-10 22:52:22,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2249 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-10 22:52:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2024-10-10 22:52:22,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1226. [2024-10-10 22:52:22,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 1.8359183673469388) internal successors, (2249), 1225 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:22,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 2249 transitions. [2024-10-10 22:52:22,754 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 2249 transitions. Word has length 944 [2024-10-10 22:52:22,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:52:22,756 INFO L471 AbstractCegarLoop]: Abstraction has 1226 states and 2249 transitions. [2024-10-10 22:52:22,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 472.0) internal successors, (944), 2 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:22,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 2249 transitions. [2024-10-10 22:52:22,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 945 [2024-10-10 22:52:22,773 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:52:22,773 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:52:22,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-10 22:52:22,773 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:52:22,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:52:22,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1818940910, now seen corresponding path program 1 times [2024-10-10 22:52:22,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:52:22,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535326992] [2024-10-10 22:52:22,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:52:22,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:52:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:52:25,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:52:25,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:52:25,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535326992] [2024-10-10 22:52:25,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535326992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:52:25,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:52:25,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:52:25,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713643401] [2024-10-10 22:52:25,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:52:25,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 22:52:25,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:52:25,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 22:52:25,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:52:25,052 INFO L87 Difference]: Start difference. First operand 1226 states and 2249 transitions. Second operand has 4 states, 4 states have (on average 236.0) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:30,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:52:30,375 INFO L93 Difference]: Finished difference Result 4531 states and 8423 transitions. [2024-10-10 22:52:30,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 22:52:30,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 236.0) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 944 [2024-10-10 22:52:30,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:52:30,388 INFO L225 Difference]: With dead ends: 4531 [2024-10-10 22:52:30,389 INFO L226 Difference]: Without dead ends: 3306 [2024-10-10 22:52:30,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-10 22:52:30,391 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 2488 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 5348 mSolverCounterSat, 1771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2488 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 7119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1771 IncrementalHoareTripleChecker+Valid, 5348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-10-10 22:52:30,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2488 Valid, 849 Invalid, 7119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1771 Valid, 5348 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-10-10 22:52:30,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3306 states. [2024-10-10 22:52:30,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3306 to 3285. [2024-10-10 22:52:30,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 3284 states have (on average 1.559987819732034) internal successors, (5123), 3284 states have internal predecessors, (5123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:30,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 5123 transitions. [2024-10-10 22:52:30,441 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 5123 transitions. Word has length 944 [2024-10-10 22:52:30,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:52:30,442 INFO L471 AbstractCegarLoop]: Abstraction has 3285 states and 5123 transitions. [2024-10-10 22:52:30,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 236.0) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:30,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 5123 transitions. [2024-10-10 22:52:30,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2024-10-10 22:52:30,459 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:52:30,459 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:52:30,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-10 22:52:30,460 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:52:30,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:52:30,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1686926134, now seen corresponding path program 1 times [2024-10-10 22:52:30,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:52:30,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649657056] [2024-10-10 22:52:30,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:52:30,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:52:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:52:31,285 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:52:31,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:52:31,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649657056] [2024-10-10 22:52:31,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649657056] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 22:52:31,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781528050] [2024-10-10 22:52:31,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:52:31,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 22:52:31,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 22:52:31,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 22:52:31,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-10 22:52:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:52:31,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 22:52:31,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 22:52:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-10 22:52:31,714 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 22:52:31,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781528050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:52:31,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 22:52:31,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-10-10 22:52:31,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019647] [2024-10-10 22:52:31,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:52:31,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:52:31,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:52:31,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:52:31,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-10 22:52:31,721 INFO L87 Difference]: Start difference. First operand 3285 states and 5123 transitions. Second operand has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 2 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:32,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:52:32,991 INFO L93 Difference]: Finished difference Result 9839 states and 15353 transitions. [2024-10-10 22:52:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:52:32,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 2 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 969 [2024-10-10 22:52:32,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:52:33,009 INFO L225 Difference]: With dead ends: 9839 [2024-10-10 22:52:33,010 INFO L226 Difference]: Without dead ends: 6555 [2024-10-10 22:52:33,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 968 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-10 22:52:33,015 INFO L432 NwaCegarLoop]: 1736 mSDtfsCounter, 2072 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-10 22:52:33,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 3342 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-10 22:52:33,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6555 states. [2024-10-10 22:52:33,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6555 to 6553. [2024-10-10 22:52:33,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6553 states, 6552 states have (on average 1.5581501831501832) internal successors, (10209), 6552 states have internal predecessors, (10209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:33,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6553 states to 6553 states and 10209 transitions. [2024-10-10 22:52:33,123 INFO L78 Accepts]: Start accepts. Automaton has 6553 states and 10209 transitions. Word has length 969 [2024-10-10 22:52:33,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:52:33,124 INFO L471 AbstractCegarLoop]: Abstraction has 6553 states and 10209 transitions. [2024-10-10 22:52:33,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.3333333333333) internal successors, (967), 2 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:33,125 INFO L276 IsEmpty]: Start isEmpty. Operand 6553 states and 10209 transitions. [2024-10-10 22:52:33,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2024-10-10 22:52:33,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:52:33,142 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:52:33,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-10 22:52:33,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 22:52:33,344 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:52:33,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:52:33,345 INFO L85 PathProgramCache]: Analyzing trace with hash 511195963, now seen corresponding path program 1 times [2024-10-10 22:52:33,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:52:33,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576783410] [2024-10-10 22:52:33,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:52:33,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:52:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:52:34,198 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:52:34,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:52:34,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576783410] [2024-10-10 22:52:34,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576783410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:52:34,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:52:34,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:52:34,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260066275] [2024-10-10 22:52:34,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:52:34,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:52:34,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:52:34,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:52:34,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:52:34,205 INFO L87 Difference]: Start difference. First operand 6553 states and 10209 transitions. Second operand has 3 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:37,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:52:37,236 INFO L93 Difference]: Finished difference Result 17201 states and 27928 transitions. [2024-10-10 22:52:37,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:52:37,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 971 [2024-10-10 22:52:37,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:52:37,260 INFO L225 Difference]: With dead ends: 17201 [2024-10-10 22:52:37,260 INFO L226 Difference]: Without dead ends: 10649 [2024-10-10 22:52:37,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:52:37,271 INFO L432 NwaCegarLoop]: 1976 mSDtfsCounter, 1088 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 4090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-10 22:52:37,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 2130 Invalid, 4090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [682 Valid, 3408 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-10 22:52:37,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2024-10-10 22:52:37,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 10569. [2024-10-10 22:52:37,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10569 states, 10568 states have (on average 1.4874148372445117) internal successors, (15719), 10568 states have internal predecessors, (15719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:37,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10569 states to 10569 states and 15719 transitions. [2024-10-10 22:52:37,412 INFO L78 Accepts]: Start accepts. Automaton has 10569 states and 15719 transitions. Word has length 971 [2024-10-10 22:52:37,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:52:37,412 INFO L471 AbstractCegarLoop]: Abstraction has 10569 states and 15719 transitions. [2024-10-10 22:52:37,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 10569 states and 15719 transitions. [2024-10-10 22:52:37,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2024-10-10 22:52:37,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:52:37,437 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:52:37,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-10 22:52:37,438 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:52:37,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:52:37,438 INFO L85 PathProgramCache]: Analyzing trace with hash 427897124, now seen corresponding path program 1 times [2024-10-10 22:52:37,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:52:37,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622111634] [2024-10-10 22:52:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:52:37,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:52:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:52:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-10 22:52:37,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:52:37,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622111634] [2024-10-10 22:52:37,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622111634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:52:37,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:52:37,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:52:37,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664874936] [2024-10-10 22:52:37,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:52:37,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:52:37,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:52:38,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:52:38,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:52:38,004 INFO L87 Difference]: Start difference. First operand 10569 states and 15719 transitions. Second operand has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 2 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:40,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:52:40,881 INFO L93 Difference]: Finished difference Result 26169 states and 38769 transitions. [2024-10-10 22:52:40,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:52:40,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 2 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 976 [2024-10-10 22:52:40,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:52:40,911 INFO L225 Difference]: With dead ends: 26169 [2024-10-10 22:52:40,911 INFO L226 Difference]: Without dead ends: 15601 [2024-10-10 22:52:40,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:52:40,923 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 1388 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 1280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 4136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1280 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-10 22:52:40,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 752 Invalid, 4136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1280 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-10 22:52:40,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15601 states. [2024-10-10 22:52:41,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15601 to 15562. [2024-10-10 22:52:41,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15562 states, 15561 states have (on average 1.372855214960478) internal successors, (21363), 15561 states have internal predecessors, (21363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15562 states to 15562 states and 21363 transitions. [2024-10-10 22:52:41,125 INFO L78 Accepts]: Start accepts. Automaton has 15562 states and 21363 transitions. Word has length 976 [2024-10-10 22:52:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:52:41,125 INFO L471 AbstractCegarLoop]: Abstraction has 15562 states and 21363 transitions. [2024-10-10 22:52:41,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 2 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:41,126 INFO L276 IsEmpty]: Start isEmpty. Operand 15562 states and 21363 transitions. [2024-10-10 22:52:41,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 982 [2024-10-10 22:52:41,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:52:41,148 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:52:41,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-10 22:52:41,148 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:52:41,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:52:41,150 INFO L85 PathProgramCache]: Analyzing trace with hash -529387845, now seen corresponding path program 1 times [2024-10-10 22:52:41,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:52:41,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373065654] [2024-10-10 22:52:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:52:41,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:52:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:52:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-10 22:52:42,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:52:42,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373065654] [2024-10-10 22:52:42,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373065654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:52:42,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:52:42,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:52:42,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530134915] [2024-10-10 22:52:42,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:52:42,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:52:42,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:52:42,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:52:42,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:52:42,443 INFO L87 Difference]: Start difference. First operand 15562 states and 21363 transitions. Second operand has 3 states, 3 states have (on average 322.0) internal successors, (966), 2 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:45,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:52:45,443 INFO L93 Difference]: Finished difference Result 43245 states and 60389 transitions. [2024-10-10 22:52:45,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:52:45,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 322.0) internal successors, (966), 2 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 981 [2024-10-10 22:52:45,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:52:45,494 INFO L225 Difference]: With dead ends: 43245 [2024-10-10 22:52:45,494 INFO L226 Difference]: Without dead ends: 28677 [2024-10-10 22:52:45,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:52:45,509 INFO L432 NwaCegarLoop]: 827 mSDtfsCounter, 1157 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 3504 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 4028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 3504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-10 22:52:45,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 1014 Invalid, 4028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 3504 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-10 22:52:45,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28677 states. [2024-10-10 22:52:45,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28677 to 28625. [2024-10-10 22:52:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28625 states, 28624 states have (on average 1.3048141419787591) internal successors, (37349), 28624 states have internal predecessors, (37349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:45,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28625 states to 28625 states and 37349 transitions. [2024-10-10 22:52:45,894 INFO L78 Accepts]: Start accepts. Automaton has 28625 states and 37349 transitions. Word has length 981 [2024-10-10 22:52:45,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:52:45,895 INFO L471 AbstractCegarLoop]: Abstraction has 28625 states and 37349 transitions. [2024-10-10 22:52:45,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.0) internal successors, (966), 2 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:45,896 INFO L276 IsEmpty]: Start isEmpty. Operand 28625 states and 37349 transitions. [2024-10-10 22:52:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1012 [2024-10-10 22:52:45,936 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:52:45,937 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:52:45,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-10 22:52:45,937 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:52:45,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:52:45,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1849911829, now seen corresponding path program 1 times [2024-10-10 22:52:45,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:52:45,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114587957] [2024-10-10 22:52:45,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:52:45,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:52:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:52:46,797 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-10 22:52:46,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:52:46,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114587957] [2024-10-10 22:52:46,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114587957] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:52:46,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:52:46,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:52:46,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840741049] [2024-10-10 22:52:46,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:52:46,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:52:46,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:52:46,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:52:46,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:52:46,800 INFO L87 Difference]: Start difference. First operand 28625 states and 37349 transitions. Second operand has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 2 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:49,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:52:49,906 INFO L93 Difference]: Finished difference Result 74322 states and 98544 transitions. [2024-10-10 22:52:49,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:52:49,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 2 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1011 [2024-10-10 22:52:49,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:52:49,969 INFO L225 Difference]: With dead ends: 74322 [2024-10-10 22:52:49,969 INFO L226 Difference]: Without dead ends: 47684 [2024-10-10 22:52:49,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:52:50,000 INFO L432 NwaCegarLoop]: 922 mSDtfsCounter, 1307 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 3441 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 4074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 3441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-10 22:52:50,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1113 Invalid, 4074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 3441 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-10 22:52:50,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47684 states. [2024-10-10 22:52:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47684 to 47660. [2024-10-10 22:52:50,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47660 states, 47659 states have (on average 1.26330808451709) internal successors, (60208), 47659 states have internal predecessors, (60208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:50,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47660 states to 47660 states and 60208 transitions. [2024-10-10 22:52:50,455 INFO L78 Accepts]: Start accepts. Automaton has 47660 states and 60208 transitions. Word has length 1011 [2024-10-10 22:52:50,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:52:50,456 INFO L471 AbstractCegarLoop]: Abstraction has 47660 states and 60208 transitions. [2024-10-10 22:52:50,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 2 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 47660 states and 60208 transitions. [2024-10-10 22:52:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1026 [2024-10-10 22:52:50,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:52:50,498 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:52:50,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-10 22:52:50,498 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:52:50,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:52:50,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1080188798, now seen corresponding path program 1 times [2024-10-10 22:52:50,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:52:50,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115245092] [2024-10-10 22:52:50,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:52:50,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:52:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:52:51,237 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-10 22:52:51,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:52:51,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115245092] [2024-10-10 22:52:51,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115245092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:52:51,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:52:51,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:52:51,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934390048] [2024-10-10 22:52:51,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:52:51,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:52:51,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:52:51,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:52:51,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:52:51,240 INFO L87 Difference]: Start difference. First operand 47660 states and 60208 transitions. Second operand has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 2 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:54,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:52:54,328 INFO L93 Difference]: Finished difference Result 131415 states and 168116 transitions. [2024-10-10 22:52:54,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:52:54,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 2 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1025 [2024-10-10 22:52:54,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:52:54,436 INFO L225 Difference]: With dead ends: 131415 [2024-10-10 22:52:54,436 INFO L226 Difference]: Without dead ends: 85742 [2024-10-10 22:52:54,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:52:54,482 INFO L432 NwaCegarLoop]: 924 mSDtfsCounter, 1266 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 4082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 777 IncrementalHoareTripleChecker+Valid, 3305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-10 22:52:54,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 1110 Invalid, 4082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [777 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-10 22:52:54,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85742 states. [2024-10-10 22:52:55,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85742 to 85711. [2024-10-10 22:52:55,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85711 states, 85710 states have (on average 1.2407420371018552) internal successors, (106344), 85710 states have internal predecessors, (106344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:55,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85711 states to 85711 states and 106344 transitions. [2024-10-10 22:52:55,542 INFO L78 Accepts]: Start accepts. Automaton has 85711 states and 106344 transitions. Word has length 1025 [2024-10-10 22:52:55,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:52:55,542 INFO L471 AbstractCegarLoop]: Abstraction has 85711 states and 106344 transitions. [2024-10-10 22:52:55,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 2 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:52:55,543 INFO L276 IsEmpty]: Start isEmpty. Operand 85711 states and 106344 transitions. [2024-10-10 22:52:55,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1030 [2024-10-10 22:52:55,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:52:55,616 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:52:55,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-10 22:52:55,616 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:52:55,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:52:55,617 INFO L85 PathProgramCache]: Analyzing trace with hash 142950152, now seen corresponding path program 1 times [2024-10-10 22:52:55,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:52:55,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843722263] [2024-10-10 22:52:55,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:52:55,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:52:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:52:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:52:56,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:52:56,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843722263] [2024-10-10 22:52:56,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843722263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:52:56,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:52:56,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:52:56,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996334016] [2024-10-10 22:52:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:52:56,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 22:52:56,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:52:56,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 22:52:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:52:56,689 INFO L87 Difference]: Start difference. First operand 85711 states and 106344 transitions. Second operand has 4 states, 4 states have (on average 257.25) internal successors, (1029), 3 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:53:01,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:53:01,769 INFO L93 Difference]: Finished difference Result 272365 states and 341596 transitions. [2024-10-10 22:53:01,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 22:53:01,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 257.25) internal successors, (1029), 3 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1029 [2024-10-10 22:53:01,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:53:01,985 INFO L225 Difference]: With dead ends: 272365 [2024-10-10 22:53:01,985 INFO L226 Difference]: Without dead ends: 188641 [2024-10-10 22:53:02,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:53:02,027 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 2518 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 5919 mSolverCounterSat, 1412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2518 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 7331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 5919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-10 22:53:02,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2518 Valid, 1250 Invalid, 7331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1412 Valid, 5919 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-10 22:53:02,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188641 states. [2024-10-10 22:53:03,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188641 to 188583. [2024-10-10 22:53:04,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188583 states, 188582 states have (on average 1.2194430009226755) internal successors, (229965), 188582 states have internal predecessors, (229965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:53:04,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188583 states to 188583 states and 229965 transitions. [2024-10-10 22:53:04,592 INFO L78 Accepts]: Start accepts. Automaton has 188583 states and 229965 transitions. Word has length 1029 [2024-10-10 22:53:04,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:53:04,592 INFO L471 AbstractCegarLoop]: Abstraction has 188583 states and 229965 transitions. [2024-10-10 22:53:04,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 257.25) internal successors, (1029), 3 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:53:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 188583 states and 229965 transitions. [2024-10-10 22:53:04,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1034 [2024-10-10 22:53:04,935 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:53:04,936 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:53:04,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-10 22:53:04,936 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:53:04,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:53:04,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1918152338, now seen corresponding path program 1 times [2024-10-10 22:53:04,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:53:04,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500019691] [2024-10-10 22:53:04,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:53:04,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:53:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:53:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-10 22:53:05,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:53:05,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500019691] [2024-10-10 22:53:05,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500019691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:53:05,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:53:05,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:53:05,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201244145] [2024-10-10 22:53:05,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:53:05,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:53:05,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:53:05,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:53:05,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:53:05,560 INFO L87 Difference]: Start difference. First operand 188583 states and 229965 transitions. Second operand has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 2 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:53:09,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:53:09,742 INFO L93 Difference]: Finished difference Result 532497 states and 653872 transitions. [2024-10-10 22:53:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:53:09,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 2 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1033 [2024-10-10 22:53:09,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:53:10,224 INFO L225 Difference]: With dead ends: 532497 [2024-10-10 22:53:10,225 INFO L226 Difference]: Without dead ends: 345901 [2024-10-10 22:53:10,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:53:10,300 INFO L432 NwaCegarLoop]: 876 mSDtfsCounter, 1378 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 2939 mSolverCounterSat, 1045 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 3984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1045 IncrementalHoareTripleChecker+Valid, 2939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-10 22:53:10,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1073 Invalid, 3984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1045 Valid, 2939 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-10 22:53:10,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345901 states. [2024-10-10 22:53:13,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345901 to 345801. [2024-10-10 22:53:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345801 states, 345800 states have (on average 1.18858010410642) internal successors, (411011), 345800 states have internal predecessors, (411011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:53:15,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345801 states to 345801 states and 411011 transitions. [2024-10-10 22:53:15,132 INFO L78 Accepts]: Start accepts. Automaton has 345801 states and 411011 transitions. Word has length 1033 [2024-10-10 22:53:15,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:53:15,133 INFO L471 AbstractCegarLoop]: Abstraction has 345801 states and 411011 transitions. [2024-10-10 22:53:15,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 2 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:53:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand 345801 states and 411011 transitions. [2024-10-10 22:53:15,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1036 [2024-10-10 22:53:15,417 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:53:15,418 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:53:15,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-10 22:53:15,418 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:53:15,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:53:15,419 INFO L85 PathProgramCache]: Analyzing trace with hash -166164819, now seen corresponding path program 1 times [2024-10-10 22:53:15,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:53:15,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331050131] [2024-10-10 22:53:15,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:53:15,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:53:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:53:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-10 22:53:16,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:53:16,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331050131] [2024-10-10 22:53:16,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331050131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:53:16,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:53:16,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:53:16,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127315564] [2024-10-10 22:53:16,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:53:16,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 22:53:16,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:53:16,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 22:53:16,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:53:16,642 INFO L87 Difference]: Start difference. First operand 345801 states and 411011 transitions. Second operand has 4 states, 4 states have (on average 255.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:53:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:53:23,592 INFO L93 Difference]: Finished difference Result 1091042 states and 1300329 transitions. [2024-10-10 22:53:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 22:53:23,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 255.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1035 [2024-10-10 22:53:23,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:53:24,698 INFO L225 Difference]: With dead ends: 1091042 [2024-10-10 22:53:24,698 INFO L226 Difference]: Without dead ends: 747228 [2024-10-10 22:53:24,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:53:24,852 INFO L432 NwaCegarLoop]: 1588 mSDtfsCounter, 3245 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 4538 mSolverCounterSat, 906 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3245 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 5444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 906 IncrementalHoareTripleChecker+Valid, 4538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-10 22:53:24,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3245 Valid, 3169 Invalid, 5444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [906 Valid, 4538 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-10 22:53:25,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747228 states.