./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2fa8a6df24cfb2e7fff9b36ae5a737f29c862e41a0d792285ba28246763fc717 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 10:18:58,846 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 10:18:58,926 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 10:18:58,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 10:18:58,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 10:18:58,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 10:18:58,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 10:18:58,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 10:18:58,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 10:18:58,976 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 10:18:58,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 10:18:58,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 10:18:58,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 10:18:58,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 10:18:58,980 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 10:18:58,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 10:18:58,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 10:18:58,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 10:18:58,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 10:18:58,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 10:18:58,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 10:18:58,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 10:18:58,986 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 10:18:58,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 10:18:58,986 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 10:18:58,986 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 10:18:58,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 10:18:58,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 10:18:58,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 10:18:58,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:18:58,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 10:18:58,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 10:18:58,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 10:18:58,988 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 10:18:58,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 10:18:58,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 10:18:58,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 10:18:58,991 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 10:18:58,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 10:18:58,991 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fa8a6df24cfb2e7fff9b36ae5a737f29c862e41a0d792285ba28246763fc717 [2024-11-16 10:18:59,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 10:18:59,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 10:18:59,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 10:18:59,277 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 10:18:59,277 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 10:18:59,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c [2024-11-16 10:19:00,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 10:19:01,007 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 10:19:01,008 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c [2024-11-16 10:19:01,032 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426c1f4b5/239b57bdb3284994a4151a104e3e818a/FLAG1cd6c8de2 [2024-11-16 10:19:01,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426c1f4b5/239b57bdb3284994a4151a104e3e818a [2024-11-16 10:19:01,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 10:19:01,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 10:19:01,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 10:19:01,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 10:19:01,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 10:19:01,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:19:01" (1/1) ... [2024-11-16 10:19:01,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1327e209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:01, skipping insertion in model container [2024-11-16 10:19:01,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:19:01" (1/1) ... [2024-11-16 10:19:01,130 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 10:19:01,353 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c[1171,1184] [2024-11-16 10:19:01,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:19:01,846 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 10:19:01,857 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.brp.2.prop1-back-serstep.c[1171,1184] [2024-11-16 10:19:02,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:19:02,172 INFO L204 MainTranslator]: Completed translation [2024-11-16 10:19:02,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02 WrapperNode [2024-11-16 10:19:02,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 10:19:02,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 10:19:02,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 10:19:02,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 10:19:02,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:02,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:03,392 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9168 [2024-11-16 10:19:03,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 10:19:03,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 10:19:03,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 10:19:03,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 10:19:03,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:03,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:03,761 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:03,945 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 10:19:03,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:03,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:04,201 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:04,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:04,291 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:04,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:04,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 10:19:04,547 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 10:19:04,548 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 10:19:04,548 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 10:19:04,549 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (1/1) ... [2024-11-16 10:19:04,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:19:04,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:19:04,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 10:19:04,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 10:19:04,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 10:19:04,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 10:19:04,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 10:19:04,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 10:19:05,114 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 10:19:05,118 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 10:19:17,786 INFO L? ?]: Removed 5024 outVars from TransFormulas that were not future-live. [2024-11-16 10:19:17,786 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 10:19:18,085 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 10:19:18,085 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 10:19:18,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:19:18 BoogieIcfgContainer [2024-11-16 10:19:18,087 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 10:19:18,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 10:19:18,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 10:19:18,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 10:19:18,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:19:01" (1/3) ... [2024-11-16 10:19:18,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437ddbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:19:18, skipping insertion in model container [2024-11-16 10:19:18,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:02" (2/3) ... [2024-11-16 10:19:18,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437ddbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:19:18, skipping insertion in model container [2024-11-16 10:19:18,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:19:18" (3/3) ... [2024-11-16 10:19:18,096 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.brp.2.prop1-back-serstep.c [2024-11-16 10:19:18,113 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 10:19:18,113 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 10:19:18,222 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 10:19:18,229 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;@331c68f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 10:19:18,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 10:19:18,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 3201 states, 3199 states have (on average 1.4992185057830572) internal successors, (4796), 3200 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:18,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-16 10:19:18,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:19:18,297 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] [2024-11-16 10:19:18,297 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:19:18,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:19:18,306 INFO L85 PathProgramCache]: Analyzing trace with hash -416804660, now seen corresponding path program 1 times [2024-11-16 10:19:18,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:19:18,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268097823] [2024-11-16 10:19:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:19:18,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:19:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:19:20,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:19:20,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:19:20,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268097823] [2024-11-16 10:19:20,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268097823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:19:20,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:19:20,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:19:20,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108361187] [2024-11-16 10:19:20,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:19:20,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:19:20,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:19:20,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:19:20,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:19:20,404 INFO L87 Difference]: Start difference. First operand has 3201 states, 3199 states have (on average 1.4992185057830572) internal successors, (4796), 3200 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:25,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:19:25,820 INFO L93 Difference]: Finished difference Result 9177 states and 13758 transitions. [2024-11-16 10:19:25,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:19:25,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 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 322 [2024-11-16 10:19:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:19:25,865 INFO L225 Difference]: With dead ends: 9177 [2024-11-16 10:19:25,865 INFO L226 Difference]: Without dead ends: 6134 [2024-11-16 10:19:25,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:19:25,881 INFO L432 NwaCegarLoop]: 3036 mSDtfsCounter, 4435 mSDsluCounter, 9006 mSDsCounter, 0 mSdLazyCounter, 6883 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4435 SdHoareTripleChecker+Valid, 12042 SdHoareTripleChecker+Invalid, 6884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:19:25,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4435 Valid, 12042 Invalid, 6884 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 6883 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-16 10:19:25,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2024-11-16 10:19:26,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 3447. [2024-11-16 10:19:26,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3447 states, 3446 states have (on average 1.4988392338943703) internal successors, (5165), 3446 states have internal predecessors, (5165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:26,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3447 states to 3447 states and 5165 transitions. [2024-11-16 10:19:26,072 INFO L78 Accepts]: Start accepts. Automaton has 3447 states and 5165 transitions. Word has length 322 [2024-11-16 10:19:26,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:19:26,075 INFO L471 AbstractCegarLoop]: Abstraction has 3447 states and 5165 transitions. [2024-11-16 10:19:26,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3447 states and 5165 transitions. [2024-11-16 10:19:26,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-16 10:19:26,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:19:26,081 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] [2024-11-16 10:19:26,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 10:19:26,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:19:26,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:19:26,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1193438165, now seen corresponding path program 1 times [2024-11-16 10:19:26,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:19:26,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516847901] [2024-11-16 10:19:26,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:19:26,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:19:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:19:26,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:19:26,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:19:26,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516847901] [2024-11-16 10:19:26,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516847901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:19:26,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:19:26,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:19:26,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327536648] [2024-11-16 10:19:26,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:19:26,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:19:26,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:19:26,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:19:26,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:19:26,981 INFO L87 Difference]: Start difference. First operand 3447 states and 5165 transitions. Second operand has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:31,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:19:31,190 INFO L93 Difference]: Finished difference Result 9276 states and 13901 transitions. [2024-11-16 10:19:31,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:19:31,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 0 states have call successors, (0), 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 324 [2024-11-16 10:19:31,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:19:31,215 INFO L225 Difference]: With dead ends: 9276 [2024-11-16 10:19:31,216 INFO L226 Difference]: Without dead ends: 6238 [2024-11-16 10:19:31,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:19:31,223 INFO L432 NwaCegarLoop]: 3296 mSDtfsCounter, 8711 mSDsluCounter, 10277 mSDsCounter, 0 mSdLazyCounter, 5973 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8711 SdHoareTripleChecker+Valid, 13573 SdHoareTripleChecker+Invalid, 6023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 5973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:19:31,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8711 Valid, 13573 Invalid, 6023 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 5973 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-16 10:19:31,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6238 states. [2024-11-16 10:19:31,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6238 to 3454. [2024-11-16 10:19:31,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3453 states have (on average 1.49840718216044) internal successors, (5174), 3453 states have internal predecessors, (5174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 5174 transitions. [2024-11-16 10:19:31,325 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 5174 transitions. Word has length 324 [2024-11-16 10:19:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:19:31,327 INFO L471 AbstractCegarLoop]: Abstraction has 3454 states and 5174 transitions. [2024-11-16 10:19:31,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:31,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 5174 transitions. [2024-11-16 10:19:31,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-11-16 10:19:31,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:19:31,334 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] [2024-11-16 10:19:31,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 10:19:31,334 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:19:31,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:19:31,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1480231241, now seen corresponding path program 1 times [2024-11-16 10:19:31,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:19:31,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871888412] [2024-11-16 10:19:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:19:31,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:19:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:19:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:19:32,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:19:32,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871888412] [2024-11-16 10:19:32,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871888412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:19:32,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:19:32,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:19:32,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719638373] [2024-11-16 10:19:32,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:19:32,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:19:32,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:19:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:19:32,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:19:32,407 INFO L87 Difference]: Start difference. First operand 3454 states and 5174 transitions. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:33,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:19:33,784 INFO L93 Difference]: Finished difference Result 3459 states and 5179 transitions. [2024-11-16 10:19:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:19:33,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 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 325 [2024-11-16 10:19:33,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:19:33,796 INFO L225 Difference]: With dead ends: 3459 [2024-11-16 10:19:33,796 INFO L226 Difference]: Without dead ends: 3456 [2024-11-16 10:19:33,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:19:33,799 INFO L432 NwaCegarLoop]: 3991 mSDtfsCounter, 0 mSDsluCounter, 7977 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11968 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:19:33,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11968 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2401 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 10:19:33,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3456 states. [2024-11-16 10:19:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3456 to 3456. [2024-11-16 10:19:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3456 states, 3455 states have (on average 1.4981186685962373) internal successors, (5176), 3455 states have internal predecessors, (5176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3456 states to 3456 states and 5176 transitions. [2024-11-16 10:19:33,867 INFO L78 Accepts]: Start accepts. Automaton has 3456 states and 5176 transitions. Word has length 325 [2024-11-16 10:19:33,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:19:33,868 INFO L471 AbstractCegarLoop]: Abstraction has 3456 states and 5176 transitions. [2024-11-16 10:19:33,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:33,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3456 states and 5176 transitions. [2024-11-16 10:19:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-16 10:19:33,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:19:33,873 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] [2024-11-16 10:19:33,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 10:19:33,874 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:19:33,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:19:33,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1502529635, now seen corresponding path program 1 times [2024-11-16 10:19:33,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:19:33,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693073767] [2024-11-16 10:19:33,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:19:33,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:19:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:19:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:19:34,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:19:34,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693073767] [2024-11-16 10:19:34,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693073767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:19:34,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:19:34,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:19:34,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602071488] [2024-11-16 10:19:34,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:19:34,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:19:34,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:19:34,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:19:34,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:19:34,364 INFO L87 Difference]: Start difference. First operand 3456 states and 5176 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:35,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:19:35,739 INFO L93 Difference]: Finished difference Result 6498 states and 9735 transitions. [2024-11-16 10:19:35,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:19:35,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 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 326 [2024-11-16 10:19:35,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:19:35,751 INFO L225 Difference]: With dead ends: 6498 [2024-11-16 10:19:35,752 INFO L226 Difference]: Without dead ends: 3458 [2024-11-16 10:19:35,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:19:35,758 INFO L432 NwaCegarLoop]: 3991 mSDtfsCounter, 0 mSDsluCounter, 7974 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11965 SdHoareTripleChecker+Invalid, 2404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:19:35,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11965 Invalid, 2404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 10:19:35,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3458 states. [2024-11-16 10:19:35,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3458 to 3458. [2024-11-16 10:19:35,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 3457 states have (on average 1.4978304888631762) internal successors, (5178), 3457 states have internal predecessors, (5178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:35,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 5178 transitions. [2024-11-16 10:19:35,819 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 5178 transitions. Word has length 326 [2024-11-16 10:19:35,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:19:35,820 INFO L471 AbstractCegarLoop]: Abstraction has 3458 states and 5178 transitions. [2024-11-16 10:19:35,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:35,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 5178 transitions. [2024-11-16 10:19:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-16 10:19:35,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:19:35,825 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] [2024-11-16 10:19:35,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 10:19:35,826 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:19:35,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:19:35,826 INFO L85 PathProgramCache]: Analyzing trace with hash -918973540, now seen corresponding path program 1 times [2024-11-16 10:19:35,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:19:35,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793548722] [2024-11-16 10:19:35,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:19:35,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:19:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:19:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:19:36,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:19:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793548722] [2024-11-16 10:19:36,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793548722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:19:36,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:19:36,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:19:36,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435065724] [2024-11-16 10:19:36,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:19:36,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:19:36,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:19:36,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:19:36,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:19:36,488 INFO L87 Difference]: Start difference. First operand 3458 states and 5178 transitions. Second operand has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:38,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:19:38,425 INFO L93 Difference]: Finished difference Result 9269 states and 13887 transitions. [2024-11-16 10:19:38,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:19:38,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 0 states have call successors, (0), 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 327 [2024-11-16 10:19:38,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:19:38,443 INFO L225 Difference]: With dead ends: 9269 [2024-11-16 10:19:38,443 INFO L226 Difference]: Without dead ends: 6227 [2024-11-16 10:19:38,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:19:38,450 INFO L432 NwaCegarLoop]: 3989 mSDtfsCounter, 4452 mSDsluCounter, 11766 mSDsCounter, 0 mSdLazyCounter, 3170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4452 SdHoareTripleChecker+Valid, 15755 SdHoareTripleChecker+Invalid, 3170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 10:19:38,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4452 Valid, 15755 Invalid, 3170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3170 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 10:19:38,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6227 states. [2024-11-16 10:19:38,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6227 to 3670. [2024-11-16 10:19:38,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 3669 states have (on average 1.497683292450259) internal successors, (5495), 3669 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:38,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 5495 transitions. [2024-11-16 10:19:38,538 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 5495 transitions. Word has length 327 [2024-11-16 10:19:38,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:19:38,539 INFO L471 AbstractCegarLoop]: Abstraction has 3670 states and 5495 transitions. [2024-11-16 10:19:38,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:38,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 5495 transitions. [2024-11-16 10:19:38,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1847 [2024-11-16 10:19:38,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:19:38,612 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:19:38,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 10:19:38,612 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:19:38,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:19:38,613 INFO L85 PathProgramCache]: Analyzing trace with hash 565832028, now seen corresponding path program 1 times [2024-11-16 10:19:38,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:19:38,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557178320] [2024-11-16 10:19:38,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:19:38,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:19:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:19:43,948 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-11-16 10:19:43,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:19:43,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557178320] [2024-11-16 10:19:43,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557178320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:19:43,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:19:43,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:19:43,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016330081] [2024-11-16 10:19:43,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:19:43,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:19:43,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:19:43,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:19:43,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:19:43,954 INFO L87 Difference]: Start difference. First operand 3670 states and 5495 transitions. Second operand has 5 states, 5 states have (on average 323.0) internal successors, (1615), 5 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:45,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:19:45,296 INFO L93 Difference]: Finished difference Result 6716 states and 10058 transitions. [2024-11-16 10:19:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:19:45,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 323.0) internal successors, (1615), 5 states have internal predecessors, (1615), 0 states have call successors, (0), 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 1846 [2024-11-16 10:19:45,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:19:45,309 INFO L225 Difference]: With dead ends: 6716 [2024-11-16 10:19:45,309 INFO L226 Difference]: Without dead ends: 3674 [2024-11-16 10:19:45,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:19:45,315 INFO L432 NwaCegarLoop]: 3991 mSDtfsCounter, 0 mSDsluCounter, 11960 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15951 SdHoareTripleChecker+Invalid, 3209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:19:45,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15951 Invalid, 3209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 10:19:45,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2024-11-16 10:19:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3670. [2024-11-16 10:19:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 3669 states have (on average 1.497683292450259) internal successors, (5495), 3669 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:45,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 5495 transitions. [2024-11-16 10:19:45,386 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 5495 transitions. Word has length 1846 [2024-11-16 10:19:45,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:19:45,389 INFO L471 AbstractCegarLoop]: Abstraction has 3670 states and 5495 transitions. [2024-11-16 10:19:45,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 323.0) internal successors, (1615), 5 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 5495 transitions. [2024-11-16 10:19:45,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1848 [2024-11-16 10:19:45,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:19:45,414 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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1, 1, 1, 1] [2024-11-16 10:19:45,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 10:19:45,415 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:19:45,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:19:45,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1229376450, now seen corresponding path program 1 times [2024-11-16 10:19:45,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:19:45,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194941888] [2024-11-16 10:19:45,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:19:45,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:19:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:19:49,786 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-16 10:19:49,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:19:49,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194941888] [2024-11-16 10:19:49,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194941888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:19:49,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:19:49,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:19:49,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762472690] [2024-11-16 10:19:49,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:19:49,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:19:49,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:19:49,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:19:49,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:19:49,792 INFO L87 Difference]: Start difference. First operand 3670 states and 5495 transitions. Second operand has 4 states, 4 states have (on average 404.5) internal successors, (1618), 4 states have internal predecessors, (1618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:50,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:19:50,871 INFO L93 Difference]: Finished difference Result 6720 states and 10064 transitions. [2024-11-16 10:19:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:19:50,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 404.5) internal successors, (1618), 4 states have internal predecessors, (1618), 0 states have call successors, (0), 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 1847 [2024-11-16 10:19:50,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:19:50,886 INFO L225 Difference]: With dead ends: 6720 [2024-11-16 10:19:50,887 INFO L226 Difference]: Without dead ends: 3674 [2024-11-16 10:19:50,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:19:50,891 INFO L432 NwaCegarLoop]: 3991 mSDtfsCounter, 0 mSDsluCounter, 7974 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11965 SdHoareTripleChecker+Invalid, 2404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:19:50,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11965 Invalid, 2404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 10:19:50,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2024-11-16 10:19:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3672. [2024-11-16 10:19:50,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3671 states have (on average 1.4974121492781258) internal successors, (5497), 3671 states have internal predecessors, (5497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:50,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5497 transitions. [2024-11-16 10:19:50,953 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5497 transitions. Word has length 1847 [2024-11-16 10:19:50,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:19:50,956 INFO L471 AbstractCegarLoop]: Abstraction has 3672 states and 5497 transitions. [2024-11-16 10:19:50,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 404.5) internal successors, (1618), 4 states have internal predecessors, (1618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5497 transitions. [2024-11-16 10:19:50,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1849 [2024-11-16 10:19:50,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:19:50,981 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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1, 1, 1, 1, 1, 1] [2024-11-16 10:19:50,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 10:19:50,982 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:19:50,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:19:50,983 INFO L85 PathProgramCache]: Analyzing trace with hash 762924353, now seen corresponding path program 1 times [2024-11-16 10:19:50,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:19:50,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859410324] [2024-11-16 10:19:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:19:50,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:19:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:19:54,393 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-16 10:19:54,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:19:54,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859410324] [2024-11-16 10:19:54,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859410324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:19:54,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:19:54,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:19:54,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698391396] [2024-11-16 10:19:54,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:19:54,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:19:54,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:19:54,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:19:54,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:19:54,399 INFO L87 Difference]: Start difference. First operand 3672 states and 5497 transitions. Second operand has 5 states, 5 states have (on average 324.2) internal successors, (1621), 5 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:55,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:19:55,464 INFO L93 Difference]: Finished difference Result 6728 states and 10074 transitions. [2024-11-16 10:19:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:19:55,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 324.2) internal successors, (1621), 5 states have internal predecessors, (1621), 0 states have call successors, (0), 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 1848 [2024-11-16 10:19:55,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:19:55,474 INFO L225 Difference]: With dead ends: 6728 [2024-11-16 10:19:55,474 INFO L226 Difference]: Without dead ends: 3676 [2024-11-16 10:19:55,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:19:55,479 INFO L432 NwaCegarLoop]: 3991 mSDtfsCounter, 0 mSDsluCounter, 7974 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11965 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:19:55,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11965 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 10:19:55,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2024-11-16 10:19:55,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3674. [2024-11-16 10:19:55,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 1.4971413013885106) internal successors, (5499), 3673 states have internal predecessors, (5499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:55,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 5499 transitions. [2024-11-16 10:19:55,539 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 5499 transitions. Word has length 1848 [2024-11-16 10:19:55,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:19:55,541 INFO L471 AbstractCegarLoop]: Abstraction has 3674 states and 5499 transitions. [2024-11-16 10:19:55,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 324.2) internal successors, (1621), 5 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:19:55,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 5499 transitions. [2024-11-16 10:19:55,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1850 [2024-11-16 10:19:55,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:19:55,567 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:19:55,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 10:19:55,568 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:19:55,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:19:55,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1902121255, now seen corresponding path program 1 times [2024-11-16 10:19:55,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:19:55,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69900448] [2024-11-16 10:19:55,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:19:55,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:19:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:19:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-16 10:19:59,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:19:59,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69900448] [2024-11-16 10:19:59,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69900448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:19:59,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:19:59,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:19:59,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076058909] [2024-11-16 10:19:59,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:19:59,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:19:59,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:19:59,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:19:59,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:19:59,643 INFO L87 Difference]: Start difference. First operand 3674 states and 5499 transitions. Second operand has 5 states, 5 states have (on average 324.8) internal successors, (1624), 5 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:20:01,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:20:01,008 INFO L93 Difference]: Finished difference Result 6736 states and 10084 transitions. [2024-11-16 10:20:01,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:20:01,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 324.8) internal successors, (1624), 5 states have internal predecessors, (1624), 0 states have call successors, (0), 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 1849 [2024-11-16 10:20:01,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:20:01,019 INFO L225 Difference]: With dead ends: 6736 [2024-11-16 10:20:01,019 INFO L226 Difference]: Without dead ends: 3678 [2024-11-16 10:20:01,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:20:01,084 INFO L432 NwaCegarLoop]: 3991 mSDtfsCounter, 0 mSDsluCounter, 11960 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15951 SdHoareTripleChecker+Invalid, 3209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:20:01,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15951 Invalid, 3209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 10:20:01,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3678 states. [2024-11-16 10:20:01,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3678 to 3676. [2024-11-16 10:20:01,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3675 states have (on average 1.4968707482993198) internal successors, (5501), 3675 states have internal predecessors, (5501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:20:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 5501 transitions. [2024-11-16 10:20:01,147 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 5501 transitions. Word has length 1849 [2024-11-16 10:20:01,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:20:01,150 INFO L471 AbstractCegarLoop]: Abstraction has 3676 states and 5501 transitions. [2024-11-16 10:20:01,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 324.8) internal successors, (1624), 5 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:20:01,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 5501 transitions. [2024-11-16 10:20:01,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1851 [2024-11-16 10:20:01,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:20:01,175 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:20:01,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 10:20:01,176 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:20:01,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:20:01,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1772517414, now seen corresponding path program 1 times [2024-11-16 10:20:01,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:20:01,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224384192] [2024-11-16 10:20:01,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:20:01,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:20:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:20:04,300 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-16 10:20:04,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:20:04,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224384192] [2024-11-16 10:20:04,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224384192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:20:04,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:20:04,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:20:04,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801966197] [2024-11-16 10:20:04,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:20:04,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:20:04,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:20:04,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:20:04,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:20:04,305 INFO L87 Difference]: Start difference. First operand 3676 states and 5501 transitions. Second operand has 4 states, 4 states have (on average 406.75) internal successors, (1627), 4 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:20:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:20:05,370 INFO L93 Difference]: Finished difference Result 6744 states and 10094 transitions. [2024-11-16 10:20:05,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:20:05,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 406.75) internal successors, (1627), 4 states have internal predecessors, (1627), 0 states have call successors, (0), 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 1850 [2024-11-16 10:20:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:20:05,379 INFO L225 Difference]: With dead ends: 6744 [2024-11-16 10:20:05,379 INFO L226 Difference]: Without dead ends: 3680 [2024-11-16 10:20:05,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:20:05,383 INFO L432 NwaCegarLoop]: 3991 mSDtfsCounter, 0 mSDsluCounter, 7974 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11965 SdHoareTripleChecker+Invalid, 2404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:20:05,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11965 Invalid, 2404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 10:20:05,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3680 states. [2024-11-16 10:20:05,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3680 to 3678. [2024-11-16 10:20:05,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3678 states, 3677 states have (on average 1.4966004895295077) internal successors, (5503), 3677 states have internal predecessors, (5503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:20:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 5503 transitions. [2024-11-16 10:20:05,434 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 5503 transitions. Word has length 1850 [2024-11-16 10:20:05,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:20:05,436 INFO L471 AbstractCegarLoop]: Abstraction has 3678 states and 5503 transitions. [2024-11-16 10:20:05,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 406.75) internal successors, (1627), 4 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 10:20:05,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 5503 transitions. [2024-11-16 10:20:05,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1852 [2024-11-16 10:20:05,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:20:05,489 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:20:05,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 10:20:05,490 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:20:05,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:20:05,491 INFO L85 PathProgramCache]: Analyzing trace with hash -372712844, now seen corresponding path program 1 times [2024-11-16 10:20:05,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:20:05,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254600221] [2024-11-16 10:20:05,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:20:05,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms