./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.train-gate.7.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.train-gate.7.prop1-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3651a429c473793dba4c143cc688512ed11e424a805612fcfd1ccfdb45a48c54 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 00:50:43,980 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 00:50:44,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 00:50:44,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 00:50:44,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 00:50:44,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 00:50:44,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 00:50:44,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 00:50:44,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 00:50:44,076 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 00:50:44,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 00:50:44,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 00:50:44,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 00:50:44,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 00:50:44,078 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 00:50:44,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 00:50:44,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 00:50:44,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 00:50:44,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 00:50:44,080 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 00:50:44,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 00:50:44,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 00:50:44,081 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 00:50:44,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 00:50:44,083 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 00:50:44,083 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 00:50:44,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 00:50:44,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 00:50:44,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 00:50:44,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 00:50:44,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 00:50:44,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 00:50:44,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 00:50:44,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 00:50:44,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 00:50:44,085 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 00:50:44,085 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 00:50:44,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 00:50:44,086 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 00:50:44,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3651a429c473793dba4c143cc688512ed11e424a805612fcfd1ccfdb45a48c54 [2024-11-12 00:50:44,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 00:50:44,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 00:50:44,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 00:50:44,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 00:50:44,305 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 00:50:44,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.train-gate.7.prop1-func-interl.c [2024-11-12 00:50:45,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 00:50:45,934 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 00:50:45,934 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.train-gate.7.prop1-func-interl.c [2024-11-12 00:50:45,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d14dfc5/5db2f2c78a5c4adc8195adf489692993/FLAG363326898 [2024-11-12 00:50:46,210 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d14dfc5/5db2f2c78a5c4adc8195adf489692993 [2024-11-12 00:50:46,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 00:50:46,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 00:50:46,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 00:50:46,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 00:50:46,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 00:50:46,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:50:46" (1/1) ... [2024-11-12 00:50:46,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b1f794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:46, skipping insertion in model container [2024-11-12 00:50:46,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:50:46" (1/1) ... [2024-11-12 00:50:46,285 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 00:50:46,514 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.train-gate.7.prop1-func-interl.c[1177,1190] [2024-11-12 00:50:46,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 00:50:46,998 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 00:50:47,008 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.train-gate.7.prop1-func-interl.c[1177,1190] [2024-11-12 00:50:47,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 00:50:47,403 INFO L204 MainTranslator]: Completed translation [2024-11-12 00:50:47,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47 WrapperNode [2024-11-12 00:50:47,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 00:50:47,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 00:50:47,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 00:50:47,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 00:50:47,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:47,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:49,186 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16444 [2024-11-12 00:50:49,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 00:50:49,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 00:50:49,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 00:50:49,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 00:50:49,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:49,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:49,885 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:50,293 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 00:50:50,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:50,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:50,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:50,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:50,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:50,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:51,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 00:50:51,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 00:50:51,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 00:50:51,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 00:50:51,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (1/1) ... [2024-11-12 00:50:51,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 00:50:51,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 00:50:51,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 00:50:51,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 00:50:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 00:50:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 00:50:51,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 00:50:51,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 00:50:52,600 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 00:50:52,602 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 00:51:26,680 INFO L? ?]: Removed 9337 outVars from TransFormulas that were not future-live. [2024-11-12 00:51:26,680 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 00:51:26,738 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 00:51:26,738 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 00:51:26,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:26 BoogieIcfgContainer [2024-11-12 00:51:26,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 00:51:26,740 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 00:51:26,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 00:51:26,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 00:51:26,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:50:46" (1/3) ... [2024-11-12 00:51:26,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7d3b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:26, skipping insertion in model container [2024-11-12 00:51:26,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:47" (2/3) ... [2024-11-12 00:51:26,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a7d3b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:26, skipping insertion in model container [2024-11-12 00:51:26,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:26" (3/3) ... [2024-11-12 00:51:26,746 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.train-gate.7.prop1-func-interl.c [2024-11-12 00:51:26,761 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 00:51:26,762 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 00:51:26,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 00:51:26,885 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;@3d01855, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 00:51:26,886 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 00:51:26,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 5702 states, 5700 states have (on average 1.4998245614035088) internal successors, (8549), 5701 states have internal predecessors, (8549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:26,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-12 00:51:26,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:51:26,920 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:51:26,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:51:26,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:51:26,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1745708569, now seen corresponding path program 1 times [2024-11-12 00:51:26,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:51:26,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270213620] [2024-11-12 00:51:26,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:51:26,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:51:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:51:28,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:51:28,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:51:28,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270213620] [2024-11-12 00:51:28,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270213620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:51:28,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:51:28,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 00:51:28,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580221677] [2024-11-12 00:51:28,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:51:28,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 00:51:28,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:51:28,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 00:51:28,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 00:51:28,124 INFO L87 Difference]: Start difference. First operand has 5702 states, 5700 states have (on average 1.4998245614035088) internal successors, (8549), 5701 states have internal predecessors, (8549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:28,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:51:28,347 INFO L93 Difference]: Finished difference Result 11073 states and 16605 transitions. [2024-11-12 00:51:28,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 00:51:28,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 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 303 [2024-11-12 00:51:28,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:51:28,387 INFO L225 Difference]: With dead ends: 11073 [2024-11-12 00:51:28,387 INFO L226 Difference]: Without dead ends: 5701 [2024-11-12 00:51:28,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 00:51:28,403 INFO L435 NwaCegarLoop]: 8543 mSDtfsCounter, 0 mSDsluCounter, 17080 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25623 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:51:28,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25623 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:51:28,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2024-11-12 00:51:28,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 5701. [2024-11-12 00:51:28,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5701 states, 5700 states have (on average 1.4994736842105263) internal successors, (8547), 5700 states have internal predecessors, (8547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5701 states to 5701 states and 8547 transitions. [2024-11-12 00:51:28,558 INFO L78 Accepts]: Start accepts. Automaton has 5701 states and 8547 transitions. Word has length 303 [2024-11-12 00:51:28,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:51:28,562 INFO L471 AbstractCegarLoop]: Abstraction has 5701 states and 8547 transitions. [2024-11-12 00:51:28,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:28,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5701 states and 8547 transitions. [2024-11-12 00:51:28,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-12 00:51:28,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:51:28,569 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:51:28,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 00:51:28,569 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:51:28,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:51:28,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1715912119, now seen corresponding path program 1 times [2024-11-12 00:51:28,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:51:28,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109274267] [2024-11-12 00:51:28,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:51:28,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:51:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:51:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:51:29,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:51:29,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109274267] [2024-11-12 00:51:29,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109274267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:51:29,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:51:29,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 00:51:29,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409237402] [2024-11-12 00:51:29,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:51:29,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 00:51:29,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:51:29,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 00:51:29,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 00:51:29,048 INFO L87 Difference]: Start difference. First operand 5701 states and 8547 transitions. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:29,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:51:29,208 INFO L93 Difference]: Finished difference Result 11074 states and 16603 transitions. [2024-11-12 00:51:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 00:51:29,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2024-11-12 00:51:29,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:51:29,225 INFO L225 Difference]: With dead ends: 11074 [2024-11-12 00:51:29,225 INFO L226 Difference]: Without dead ends: 5703 [2024-11-12 00:51:29,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 00:51:29,235 INFO L435 NwaCegarLoop]: 8543 mSDtfsCounter, 0 mSDsluCounter, 17076 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25619 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:51:29,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25619 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:51:29,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5703 states. [2024-11-12 00:51:29,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5703 to 5703. [2024-11-12 00:51:29,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5703 states, 5702 states have (on average 1.4992984917572783) internal successors, (8549), 5702 states have internal predecessors, (8549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5703 states to 5703 states and 8549 transitions. [2024-11-12 00:51:29,330 INFO L78 Accepts]: Start accepts. Automaton has 5703 states and 8549 transitions. Word has length 304 [2024-11-12 00:51:29,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:51:29,331 INFO L471 AbstractCegarLoop]: Abstraction has 5703 states and 8549 transitions. [2024-11-12 00:51:29,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:29,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5703 states and 8549 transitions. [2024-11-12 00:51:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-12 00:51:29,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:51:29,334 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:51:29,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 00:51:29,335 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:51:29,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:51:29,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1543335154, now seen corresponding path program 1 times [2024-11-12 00:51:29,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:51:29,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692652442] [2024-11-12 00:51:29,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:51:29,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:51:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:51:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:51:29,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:51:29,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692652442] [2024-11-12 00:51:29,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692652442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:51:29,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:51:29,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 00:51:29,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578884198] [2024-11-12 00:51:29,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:51:29,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 00:51:29,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:51:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 00:51:29,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:51:29,783 INFO L87 Difference]: Start difference. First operand 5703 states and 8549 transitions. Second operand has 5 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:51:29,926 INFO L93 Difference]: Finished difference Result 11082 states and 16613 transitions. [2024-11-12 00:51:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 00:51:29,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 0 states have call successors, (0), 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 305 [2024-11-12 00:51:29,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:51:29,941 INFO L225 Difference]: With dead ends: 11082 [2024-11-12 00:51:29,941 INFO L226 Difference]: Without dead ends: 5709 [2024-11-12 00:51:29,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:51:29,950 INFO L435 NwaCegarLoop]: 8542 mSDtfsCounter, 4 mSDsluCounter, 25614 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 34156 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:51:29,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 34156 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:51:29,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5709 states. [2024-11-12 00:51:30,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5709 to 5709. [2024-11-12 00:51:30,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5709 states, 5708 states have (on average 1.4991240364400842) internal successors, (8557), 5708 states have internal predecessors, (8557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:30,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5709 states to 5709 states and 8557 transitions. [2024-11-12 00:51:30,045 INFO L78 Accepts]: Start accepts. Automaton has 5709 states and 8557 transitions. Word has length 305 [2024-11-12 00:51:30,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:51:30,045 INFO L471 AbstractCegarLoop]: Abstraction has 5709 states and 8557 transitions. [2024-11-12 00:51:30,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:30,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5709 states and 8557 transitions. [2024-11-12 00:51:30,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-12 00:51:30,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:51:30,051 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 00:51:30,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 00:51:30,051 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:51:30,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:51:30,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1652808375, now seen corresponding path program 1 times [2024-11-12 00:51:30,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:51:30,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53952495] [2024-11-12 00:51:30,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:51:30,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:51:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:51:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:51:30,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:51:30,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53952495] [2024-11-12 00:51:30,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53952495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:51:30,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:51:30,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 00:51:30,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614177388] [2024-11-12 00:51:30,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:51:30,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 00:51:30,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:51:30,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 00:51:30,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:51:30,675 INFO L87 Difference]: Start difference. First operand 5709 states and 8557 transitions. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:30,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:51:30,897 INFO L93 Difference]: Finished difference Result 15429 states and 23128 transitions. [2024-11-12 00:51:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 00:51:30,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 0 states have call successors, (0), 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 306 [2024-11-12 00:51:30,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:51:30,930 INFO L225 Difference]: With dead ends: 15429 [2024-11-12 00:51:30,931 INFO L226 Difference]: Without dead ends: 10050 [2024-11-12 00:51:30,940 INFO L434 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 [2024-11-12 00:51:30,941 INFO L435 NwaCegarLoop]: 8538 mSDtfsCounter, 6708 mSDsluCounter, 25115 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6708 SdHoareTripleChecker+Valid, 33653 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:51:30,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6708 Valid, 33653 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:51:30,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10050 states. [2024-11-12 00:51:31,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10050 to 5963. [2024-11-12 00:51:31,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5963 states, 5962 states have (on average 1.4989936262998993) internal successors, (8937), 5962 states have internal predecessors, (8937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:31,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5963 states to 5963 states and 8937 transitions. [2024-11-12 00:51:31,064 INFO L78 Accepts]: Start accepts. Automaton has 5963 states and 8937 transitions. Word has length 306 [2024-11-12 00:51:31,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:51:31,065 INFO L471 AbstractCegarLoop]: Abstraction has 5963 states and 8937 transitions. [2024-11-12 00:51:31,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:31,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5963 states and 8937 transitions. [2024-11-12 00:51:31,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2992 [2024-11-12 00:51:31,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:51:31,181 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-12 00:51:31,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 00:51:31,182 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:51:31,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:51:31,184 INFO L85 PathProgramCache]: Analyzing trace with hash -639490179, now seen corresponding path program 1 times [2024-11-12 00:51:31,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:51:31,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506428161] [2024-11-12 00:51:31,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:51:31,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:51:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:51:41,833 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:51:41,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:51:41,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506428161] [2024-11-12 00:51:41,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506428161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:51:41,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:51:41,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:51:41,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041522687] [2024-11-12 00:51:41,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:51:41,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:51:41,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:51:41,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:51:41,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:51:41,841 INFO L87 Difference]: Start difference. First operand 5963 states and 8937 transitions. Second operand has 6 states, 6 states have (on average 498.5) internal successors, (2991), 6 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:51:42,297 INFO L93 Difference]: Finished difference Result 22649 states and 33956 transitions. [2024-11-12 00:51:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 00:51:42,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 498.5) internal successors, (2991), 6 states have internal predecessors, (2991), 0 states have call successors, (0), 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 2991 [2024-11-12 00:51:42,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:51:42,329 INFO L225 Difference]: With dead ends: 22649 [2024-11-12 00:51:42,329 INFO L226 Difference]: Without dead ends: 17270 [2024-11-12 00:51:42,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-12 00:51:42,337 INFO L435 NwaCegarLoop]: 15043 mSDtfsCounter, 14830 mSDsluCounter, 53650 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14830 SdHoareTripleChecker+Valid, 68693 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 00:51:42,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14830 Valid, 68693 Invalid, 58 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 00:51:42,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17270 states. [2024-11-12 00:51:42,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17270 to 9956. [2024-11-12 00:51:42,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9956 states, 9955 states have (on average 1.499347061778001) internal successors, (14926), 9955 states have internal predecessors, (14926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:42,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9956 states to 9956 states and 14926 transitions. [2024-11-12 00:51:42,529 INFO L78 Accepts]: Start accepts. Automaton has 9956 states and 14926 transitions. Word has length 2991 [2024-11-12 00:51:42,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:51:42,532 INFO L471 AbstractCegarLoop]: Abstraction has 9956 states and 14926 transitions. [2024-11-12 00:51:42,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 498.5) internal successors, (2991), 6 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:42,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9956 states and 14926 transitions. [2024-11-12 00:51:42,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2993 [2024-11-12 00:51:42,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:51:42,723 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-12 00:51:42,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 00:51:42,724 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:51:42,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:51:42,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1753043545, now seen corresponding path program 1 times [2024-11-12 00:51:42,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:51:42,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284167053] [2024-11-12 00:51:42,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:51:42,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:51:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:51:50,391 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:51:50,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:51:50,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284167053] [2024-11-12 00:51:50,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284167053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:51:50,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:51:50,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 00:51:50,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467713188] [2024-11-12 00:51:50,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:51:50,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 00:51:50,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:51:50,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 00:51:50,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:51:50,398 INFO L87 Difference]: Start difference. First operand 9956 states and 14926 transitions. Second operand has 5 states, 5 states have (on average 598.4) internal successors, (2992), 5 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:50,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:51:50,630 INFO L93 Difference]: Finished difference Result 19584 states and 29361 transitions. [2024-11-12 00:51:50,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 00:51:50,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 598.4) internal successors, (2992), 5 states have internal predecessors, (2992), 0 states have call successors, (0), 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 2992 [2024-11-12 00:51:50,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:51:50,654 INFO L225 Difference]: With dead ends: 19584 [2024-11-12 00:51:50,656 INFO L226 Difference]: Without dead ends: 9958 [2024-11-12 00:51:50,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 00:51:50,672 INFO L435 NwaCegarLoop]: 8543 mSDtfsCounter, 0 mSDsluCounter, 17070 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25613 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 00:51:50,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25613 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 00:51:50,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9958 states. [2024-11-12 00:51:50,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9958 to 9958. [2024-11-12 00:51:50,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9958 states, 9957 states have (on average 1.4992467610726121) internal successors, (14928), 9957 states have internal predecessors, (14928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9958 states to 9958 states and 14928 transitions. [2024-11-12 00:51:50,867 INFO L78 Accepts]: Start accepts. Automaton has 9958 states and 14928 transitions. Word has length 2992 [2024-11-12 00:51:50,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:51:50,869 INFO L471 AbstractCegarLoop]: Abstraction has 9958 states and 14928 transitions. [2024-11-12 00:51:50,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 598.4) internal successors, (2992), 5 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:51:50,872 INFO L276 IsEmpty]: Start isEmpty. Operand 9958 states and 14928 transitions. [2024-11-12 00:51:50,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2994 [2024-11-12 00:51:50,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:51:50,931 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-12 00:51:50,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 00:51:50,931 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:51:50,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:51:50,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1222380758, now seen corresponding path program 1 times [2024-11-12 00:51:50,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:51:50,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186844838] [2024-11-12 00:51:50,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:51:50,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:51:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 00:52:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 00:52:02,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 00:52:02,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186844838] [2024-11-12 00:52:02,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186844838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 00:52:02,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 00:52:02,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 00:52:02,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107959193] [2024-11-12 00:52:02,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 00:52:02,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 00:52:02,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 00:52:02,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 00:52:02,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 00:52:02,058 INFO L87 Difference]: Start difference. First operand 9958 states and 14928 transitions. Second operand has 6 states, 6 states have (on average 498.8333333333333) internal successors, (2993), 6 states have internal predecessors, (2993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:52:02,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 00:52:02,618 INFO L93 Difference]: Finished difference Result 41020 states and 61503 transitions. [2024-11-12 00:52:02,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 00:52:02,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 498.8333333333333) internal successors, (2993), 6 states have internal predecessors, (2993), 0 states have call successors, (0), 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 2993 [2024-11-12 00:52:02,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 00:52:02,689 INFO L225 Difference]: With dead ends: 41020 [2024-11-12 00:52:02,689 INFO L226 Difference]: Without dead ends: 31392 [2024-11-12 00:52:02,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-12 00:52:02,707 INFO L435 NwaCegarLoop]: 14947 mSDtfsCounter, 14866 mSDsluCounter, 53362 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14866 SdHoareTripleChecker+Valid, 68309 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 00:52:02,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14866 Valid, 68309 Invalid, 58 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 00:52:02,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31392 states. [2024-11-12 00:52:02,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31392 to 10050. [2024-11-12 00:52:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10050 states, 10049 states have (on average 1.4992536570803066) internal successors, (15066), 10049 states have internal predecessors, (15066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:52:03,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10050 states to 10050 states and 15066 transitions. [2024-11-12 00:52:03,015 INFO L78 Accepts]: Start accepts. Automaton has 10050 states and 15066 transitions. Word has length 2993 [2024-11-12 00:52:03,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 00:52:03,020 INFO L471 AbstractCegarLoop]: Abstraction has 10050 states and 15066 transitions. [2024-11-12 00:52:03,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 498.8333333333333) internal successors, (2993), 6 states have internal predecessors, (2993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 00:52:03,022 INFO L276 IsEmpty]: Start isEmpty. Operand 10050 states and 15066 transitions. [2024-11-12 00:52:03,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2995 [2024-11-12 00:52:03,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 00:52:03,125 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-12 00:52:03,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 00:52:03,126 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 00:52:03,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 00:52:03,127 INFO L85 PathProgramCache]: Analyzing trace with hash 887560033, now seen corresponding path program 1 times [2024-11-12 00:52:03,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 00:52:03,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348389009] [2024-11-12 00:52:03,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 00:52:03,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 00:52:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat