./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.3.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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.elevator.3.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 2e4ac21b8a005dfb332b79c7a527805fd9487d54188fb330cb5764e6911959cc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 02:00:22,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 02:00:22,511 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 02:00:22,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 02:00:22,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 02:00:22,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 02:00:22,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 02:00:22,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 02:00:22,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 02:00:22,556 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 02:00:22,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 02:00:22,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 02:00:22,558 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 02:00:22,560 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 02:00:22,560 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 02:00:22,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 02:00:22,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 02:00:22,561 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 02:00:22,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 02:00:22,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 02:00:22,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 02:00:22,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 02:00:22,567 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 02:00:22,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 02:00:22,567 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 02:00:22,568 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 02:00:22,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 02:00:22,568 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 02:00:22,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 02:00:22,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:00:22,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 02:00:22,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 02:00:22,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 02:00:22,570 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 02:00:22,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 02:00:22,570 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 02:00:22,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 02:00:22,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 02:00:22,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 02:00:22,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4ac21b8a005dfb332b79c7a527805fd9487d54188fb330cb5764e6911959cc [2024-11-10 02:00:22,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 02:00:22,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 02:00:22,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 02:00:22,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 02:00:22,878 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 02:00:22,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.3.prop1-func-interl.c [2024-11-10 02:00:24,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 02:00:24,803 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 02:00:24,804 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.3.prop1-func-interl.c [2024-11-10 02:00:24,831 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2a75b70/82351197d0ae405ab714110279db6240/FLAGfedfd0230 [2024-11-10 02:00:24,852 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2a75b70/82351197d0ae405ab714110279db6240 [2024-11-10 02:00:24,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 02:00:24,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 02:00:24,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 02:00:24,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 02:00:24,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 02:00:24,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:00:24" (1/1) ... [2024-11-10 02:00:24,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4848c458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:24, skipping insertion in model container [2024-11-10 02:00:24,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:00:24" (1/1) ... [2024-11-10 02:00:24,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 02:00:25,224 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.elevator.3.prop1-func-interl.c[1175,1188] [2024-11-10 02:00:25,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:00:25,864 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 02:00:25,874 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.elevator.3.prop1-func-interl.c[1175,1188] [2024-11-10 02:00:26,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:00:26,106 INFO L204 MainTranslator]: Completed translation [2024-11-10 02:00:26,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26 WrapperNode [2024-11-10 02:00:26,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 02:00:26,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 02:00:26,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 02:00:26,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 02:00:26,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:26,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:28,001 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 11013 [2024-11-10 02:00:28,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 02:00:28,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 02:00:28,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 02:00:28,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 02:00:28,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:28,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:28,402 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:28,550 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]. [2024-11-10 02:00:28,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:28,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:29,068 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:29,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:29,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:29,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:29,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 02:00:29,453 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 02:00:29,454 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 02:00:29,454 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 02:00:29,455 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (1/1) ... [2024-11-10 02:00:29,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:00:29,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:00:29,491 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) [2024-11-10 02:00:29,493 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 [2024-11-10 02:00:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 02:00:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 02:00:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 02:00:29,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 02:00:30,217 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 02:00:30,219 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 02:00:43,646 INFO L? ?]: Removed 6189 outVars from TransFormulas that were not future-live. [2024-11-10 02:00:43,646 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 02:00:44,109 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 02:00:44,110 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 02:00:44,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:00:44 BoogieIcfgContainer [2024-11-10 02:00:44,112 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 02:00:44,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 02:00:44,115 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 02:00:44,119 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 02:00:44,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:00:24" (1/3) ... [2024-11-10 02:00:44,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f84e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:00:44, skipping insertion in model container [2024-11-10 02:00:44,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:26" (2/3) ... [2024-11-10 02:00:44,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f84e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:00:44, skipping insertion in model container [2024-11-10 02:00:44,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:00:44" (3/3) ... [2024-11-10 02:00:44,123 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.elevator.3.prop1-func-interl.c [2024-11-10 02:00:44,147 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 02:00:44,147 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 02:00:44,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 02:00:44,300 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;@6c6fa2bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 02:00:44,301 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 02:00:44,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 3827 states, 3825 states have (on average 1.4996078431372548) internal successors, (5736), 3826 states have internal predecessors, (5736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:44,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-10 02:00:44,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:00:44,345 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] [2024-11-10 02:00:44,345 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:00:44,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:00:44,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1546280768, now seen corresponding path program 1 times [2024-11-10 02:00:44,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:00:44,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766193936] [2024-11-10 02:00:44,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:00:44,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:00:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:00:45,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:00:45,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:00:45,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766193936] [2024-11-10 02:00:45,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766193936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:00:45,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:00:45,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:00:45,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321658248] [2024-11-10 02:00:45,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:00:45,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:00:45,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:00:45,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:00:45,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:00:45,658 INFO L87 Difference]: Start difference. First operand has 3827 states, 3825 states have (on average 1.4996078431372548) internal successors, (5736), 3826 states have internal predecessors, (5736), 0 states have call successors, (0), 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 51.0) internal successors, (204), 4 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:47,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:00:47,789 INFO L93 Difference]: Finished difference Result 7453 states and 11175 transitions. [2024-11-10 02:00:47,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:00:47,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 0 states have call successors, (0), 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 204 [2024-11-10 02:00:47,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:00:47,832 INFO L225 Difference]: With dead ends: 7453 [2024-11-10 02:00:47,832 INFO L226 Difference]: Without dead ends: 3824 [2024-11-10 02:00:47,848 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 [2024-11-10 02:00:47,852 INFO L432 NwaCegarLoop]: 4775 mSDtfsCounter, 0 mSDsluCounter, 9545 mSDsCounter, 0 mSdLazyCounter, 2869 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14320 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-10 02:00:47,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14320 Invalid, 2869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2869 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-10 02:00:47,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3824 states. [2024-11-10 02:00:47,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3824 to 3824. [2024-11-10 02:00:47,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3824 states, 3823 states have (on average 1.4993460633010725) internal successors, (5732), 3823 states have internal predecessors, (5732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:47,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3824 states to 3824 states and 5732 transitions. [2024-11-10 02:00:48,001 INFO L78 Accepts]: Start accepts. Automaton has 3824 states and 5732 transitions. Word has length 204 [2024-11-10 02:00:48,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:00:48,006 INFO L471 AbstractCegarLoop]: Abstraction has 3824 states and 5732 transitions. [2024-11-10 02:00:48,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:48,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3824 states and 5732 transitions. [2024-11-10 02:00:48,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-10 02:00:48,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:00:48,013 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] [2024-11-10 02:00:48,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 02:00:48,013 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:00:48,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:00:48,014 INFO L85 PathProgramCache]: Analyzing trace with hash -545004193, now seen corresponding path program 1 times [2024-11-10 02:00:48,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:00:48,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311818780] [2024-11-10 02:00:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:00:48,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:00:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:00:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:00:48,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:00:48,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311818780] [2024-11-10 02:00:48,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311818780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:00:48,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:00:48,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:00:48,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073020974] [2024-11-10 02:00:48,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:00:48,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:00:48,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:00:48,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:00:48,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:00:48,545 INFO L87 Difference]: Start difference. First operand 3824 states and 5732 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:50,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:00:50,687 INFO L93 Difference]: Finished difference Result 7452 states and 11171 transitions. [2024-11-10 02:00:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:00:50,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 0 states have call successors, (0), 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 205 [2024-11-10 02:00:50,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:00:50,706 INFO L225 Difference]: With dead ends: 7452 [2024-11-10 02:00:50,707 INFO L226 Difference]: Without dead ends: 3826 [2024-11-10 02:00:50,716 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 [2024-11-10 02:00:50,718 INFO L432 NwaCegarLoop]: 4775 mSDtfsCounter, 0 mSDsluCounter, 9542 mSDsCounter, 0 mSdLazyCounter, 2872 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14317 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-10 02:00:50,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14317 Invalid, 2872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2872 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-10 02:00:50,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3826 states. [2024-11-10 02:00:50,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3826 to 3826. [2024-11-10 02:00:50,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3825 states have (on average 1.4990849673202615) internal successors, (5734), 3825 states have internal predecessors, (5734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 5734 transitions. [2024-11-10 02:00:50,821 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 5734 transitions. Word has length 205 [2024-11-10 02:00:50,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:00:50,823 INFO L471 AbstractCegarLoop]: Abstraction has 3826 states and 5734 transitions. [2024-11-10 02:00:50,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 5734 transitions. [2024-11-10 02:00:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-10 02:00:50,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:00:50,829 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] [2024-11-10 02:00:50,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 02:00:50,829 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:00:50,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:00:50,830 INFO L85 PathProgramCache]: Analyzing trace with hash 31988741, now seen corresponding path program 1 times [2024-11-10 02:00:50,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:00:50,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33008059] [2024-11-10 02:00:50,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:00:50,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:00:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:00:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:00:51,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:00:51,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33008059] [2024-11-10 02:00:51,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33008059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:00:51,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:00:51,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:00:51,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636278923] [2024-11-10 02:00:51,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:00:51,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:00:51,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:00:51,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:00:51,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:00:51,310 INFO L87 Difference]: Start difference. First operand 3826 states and 5734 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:53,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:00:53,222 INFO L93 Difference]: Finished difference Result 7456 states and 11175 transitions. [2024-11-10 02:00:53,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:00:53,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 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 206 [2024-11-10 02:00:53,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:00:53,239 INFO L225 Difference]: With dead ends: 7456 [2024-11-10 02:00:53,240 INFO L226 Difference]: Without dead ends: 3828 [2024-11-10 02:00:53,246 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 [2024-11-10 02:00:53,248 INFO L432 NwaCegarLoop]: 4775 mSDtfsCounter, 0 mSDsluCounter, 9537 mSDsCounter, 0 mSdLazyCounter, 2877 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14312 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-10 02:00:53,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14312 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2877 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-10 02:00:53,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3828 states. [2024-11-10 02:00:53,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3828 to 3828. [2024-11-10 02:00:53,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3828 states, 3827 states have (on average 1.4988241442383068) internal successors, (5736), 3827 states have internal predecessors, (5736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:53,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3828 states to 3828 states and 5736 transitions. [2024-11-10 02:00:53,349 INFO L78 Accepts]: Start accepts. Automaton has 3828 states and 5736 transitions. Word has length 206 [2024-11-10 02:00:53,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:00:53,350 INFO L471 AbstractCegarLoop]: Abstraction has 3828 states and 5736 transitions. [2024-11-10 02:00:53,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:53,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3828 states and 5736 transitions. [2024-11-10 02:00:53,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-10 02:00:53,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:00:53,354 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] [2024-11-10 02:00:53,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 02:00:53,354 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:00:53,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:00:53,355 INFO L85 PathProgramCache]: Analyzing trace with hash -598647654, now seen corresponding path program 1 times [2024-11-10 02:00:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:00:53,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431923716] [2024-11-10 02:00:53,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:00:53,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:00:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:00:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:00:53,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:00:53,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431923716] [2024-11-10 02:00:53,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431923716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:00:53,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:00:53,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 02:00:53,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812894352] [2024-11-10 02:00:53,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:00:53,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:00:53,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:00:53,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:00:53,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:00:53,818 INFO L87 Difference]: Start difference. First operand 3828 states and 5736 transitions. Second operand has 6 states, 6 states have (on average 34.5) internal successors, (207), 6 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:56,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:00:56,059 INFO L93 Difference]: Finished difference Result 7466 states and 11187 transitions. [2024-11-10 02:00:56,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:00:56,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.5) internal successors, (207), 6 states have internal predecessors, (207), 0 states have call successors, (0), 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 207 [2024-11-10 02:00:56,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:00:56,079 INFO L225 Difference]: With dead ends: 7466 [2024-11-10 02:00:56,079 INFO L226 Difference]: Without dead ends: 3836 [2024-11-10 02:00:56,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:00:56,089 INFO L432 NwaCegarLoop]: 4774 mSDtfsCounter, 3 mSDsluCounter, 14312 mSDsCounter, 0 mSdLazyCounter, 3834 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 19086 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:00:56,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 19086 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3834 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-10 02:00:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2024-11-10 02:00:56,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 3832. [2024-11-10 02:00:56,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 3831 states have (on average 1.4988253719655442) internal successors, (5742), 3831 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:56,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 5742 transitions. [2024-11-10 02:00:56,203 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 5742 transitions. Word has length 207 [2024-11-10 02:00:56,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:00:56,204 INFO L471 AbstractCegarLoop]: Abstraction has 3832 states and 5742 transitions. [2024-11-10 02:00:56,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.5) internal successors, (207), 6 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 5742 transitions. [2024-11-10 02:00:56,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-10 02:00:56,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:00:56,206 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] [2024-11-10 02:00:56,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 02:00:56,207 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:00:56,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:00:56,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1159317942, now seen corresponding path program 1 times [2024-11-10 02:00:56,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:00:56,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197987653] [2024-11-10 02:00:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:00:56,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:00:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:00:56,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:00:56,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:00:56,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197987653] [2024-11-10 02:00:56,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197987653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:00:56,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:00:56,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:00:56,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40502231] [2024-11-10 02:00:56,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:00:56,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:00:56,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:00:56,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:00:56,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:00:56,620 INFO L87 Difference]: Start difference. First operand 3832 states and 5742 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:59,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:00:59,057 INFO L93 Difference]: Finished difference Result 10733 states and 16086 transitions. [2024-11-10 02:00:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:00:59,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 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 208 [2024-11-10 02:00:59,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:00:59,083 INFO L225 Difference]: With dead ends: 10733 [2024-11-10 02:00:59,083 INFO L226 Difference]: Without dead ends: 7099 [2024-11-10 02:00:59,091 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 [2024-11-10 02:00:59,092 INFO L432 NwaCegarLoop]: 4770 mSDtfsCounter, 5000 mSDsluCounter, 14059 mSDsCounter, 0 mSdLazyCounter, 3796 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5000 SdHoareTripleChecker+Valid, 18829 SdHoareTripleChecker+Invalid, 3796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:00:59,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5000 Valid, 18829 Invalid, 3796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3796 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-10 02:00:59,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2024-11-10 02:00:59,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 4018. [2024-11-10 02:00:59,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 4017 states have (on average 1.4986308190191686) internal successors, (6020), 4017 states have internal predecessors, (6020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 6020 transitions. [2024-11-10 02:00:59,224 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 6020 transitions. Word has length 208 [2024-11-10 02:00:59,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:00:59,225 INFO L471 AbstractCegarLoop]: Abstraction has 4018 states and 6020 transitions. [2024-11-10 02:00:59,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:00:59,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 6020 transitions. [2024-11-10 02:00:59,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2018 [2024-11-10 02:00:59,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:00:59,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-10 02:00:59,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 02:00:59,344 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:00:59,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:00:59,346 INFO L85 PathProgramCache]: Analyzing trace with hash -480801837, now seen corresponding path program 1 times [2024-11-10 02:00:59,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:00:59,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498166108] [2024-11-10 02:00:59,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:00:59,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:01:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:01:06,021 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:01:06,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:01:06,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498166108] [2024-11-10 02:01:06,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498166108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:01:06,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:01:06,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 02:01:06,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932457426] [2024-11-10 02:01:06,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:01:06,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 02:01:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:01:06,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 02:01:06,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 02:01:06,034 INFO L87 Difference]: Start difference. First operand 4018 states and 6020 transitions. Second operand has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:01:07,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:01:07,119 INFO L93 Difference]: Finished difference Result 7653 states and 11468 transitions. [2024-11-10 02:01:07,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 02:01:07,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 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 2017 [2024-11-10 02:01:07,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:01:07,135 INFO L225 Difference]: With dead ends: 7653 [2024-11-10 02:01:07,135 INFO L226 Difference]: Without dead ends: 4019 [2024-11-10 02:01:07,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 02:01:07,142 INFO L432 NwaCegarLoop]: 4776 mSDtfsCounter, 0 mSDsluCounter, 4771 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9547 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 02:01:07,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9547 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 02:01:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4019 states. [2024-11-10 02:01:07,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4019 to 4019. [2024-11-10 02:01:07,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4019 states, 4018 states have (on average 1.498506719761075) internal successors, (6021), 4018 states have internal predecessors, (6021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:01:07,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 6021 transitions. [2024-11-10 02:01:07,223 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 6021 transitions. Word has length 2017 [2024-11-10 02:01:07,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:01:07,224 INFO L471 AbstractCegarLoop]: Abstraction has 4019 states and 6021 transitions. [2024-11-10 02:01:07,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:01:07,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 6021 transitions. [2024-11-10 02:01:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2018 [2024-11-10 02:01:07,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:01:07,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 02:01:07,257 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:01:07,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:01:07,258 INFO L85 PathProgramCache]: Analyzing trace with hash 490385588, now seen corresponding path program 1 times [2024-11-10 02:01:07,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:01:07,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101735614] [2024-11-10 02:01:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:01:07,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:01:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:01:12,142 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:01:12,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:01:12,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101735614] [2024-11-10 02:01:12,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101735614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:01:12,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:01:12,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 02:01:12,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355280469] [2024-11-10 02:01:12,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:01:12,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 02:01:12,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:01:12,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 02:01:12,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 02:01:12,150 INFO L87 Difference]: Start difference. First operand 4019 states and 6021 transitions. Second operand has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:01:13,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:01:13,355 INFO L93 Difference]: Finished difference Result 7655 states and 11470 transitions. [2024-11-10 02:01:13,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 02:01:13,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 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 2017 [2024-11-10 02:01:13,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:01:13,366 INFO L225 Difference]: With dead ends: 7655 [2024-11-10 02:01:13,366 INFO L226 Difference]: Without dead ends: 4020 [2024-11-10 02:01:13,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 02:01:13,374 INFO L432 NwaCegarLoop]: 4776 mSDtfsCounter, 0 mSDsluCounter, 4771 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9547 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:01:13,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9547 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 02:01:13,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4020 states. [2024-11-10 02:01:13,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4020 to 4020. [2024-11-10 02:01:13,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 4019 states have (on average 1.4983826822592685) internal successors, (6022), 4019 states have internal predecessors, (6022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:01:13,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 6022 transitions. [2024-11-10 02:01:13,451 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 6022 transitions. Word has length 2017 [2024-11-10 02:01:13,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:01:13,452 INFO L471 AbstractCegarLoop]: Abstraction has 4020 states and 6022 transitions. [2024-11-10 02:01:13,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:01:13,453 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 6022 transitions. [2024-11-10 02:01:13,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2018 [2024-11-10 02:01:13,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:01:13,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-10 02:01:13,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 02:01:13,485 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:01:13,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:01:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash 519717683, now seen corresponding path program 1 times [2024-11-10 02:01:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:01:13,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196785598] [2024-11-10 02:01:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:01:13,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:01:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:01:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:01:19,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:01:19,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196785598] [2024-11-10 02:01:19,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196785598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:01:19,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:01:19,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 02:01:19,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963769937] [2024-11-10 02:01:19,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:01:19,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:01:19,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:01:19,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:01:19,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:01:19,488 INFO L87 Difference]: Start difference. First operand 4020 states and 6022 transitions. Second operand has 6 states, 6 states have (on average 336.1666666666667) internal successors, (2017), 6 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:01:23,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:01:23,699 INFO L93 Difference]: Finished difference Result 16675 states and 24994 transitions. [2024-11-10 02:01:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 02:01:23,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 336.1666666666667) internal successors, (2017), 6 states have internal predecessors, (2017), 0 states have call successors, (0), 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 2017 [2024-11-10 02:01:23,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:01:23,730 INFO L225 Difference]: With dead ends: 16675 [2024-11-10 02:01:23,730 INFO L226 Difference]: Without dead ends: 13039 [2024-11-10 02:01:23,741 INFO L431 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 [2024-11-10 02:01:23,742 INFO L432 NwaCegarLoop]: 8851 mSDtfsCounter, 11902 mSDsluCounter, 31309 mSDsCounter, 0 mSdLazyCounter, 8076 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11902 SdHoareTripleChecker+Valid, 40160 SdHoareTripleChecker+Invalid, 8076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-10 02:01:23,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11902 Valid, 40160 Invalid, 8076 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 8076 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-10 02:01:23,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13039 states. [2024-11-10 02:01:23,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13039 to 7069. [2024-11-10 02:01:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7069 states, 7068 states have (on average 1.499009620826259) internal successors, (10595), 7068 states have internal predecessors, (10595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:01:23,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7069 states to 7069 states and 10595 transitions. [2024-11-10 02:01:23,941 INFO L78 Accepts]: Start accepts. Automaton has 7069 states and 10595 transitions. Word has length 2017 [2024-11-10 02:01:23,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:01:23,943 INFO L471 AbstractCegarLoop]: Abstraction has 7069 states and 10595 transitions. [2024-11-10 02:01:23,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 336.1666666666667) internal successors, (2017), 6 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:01:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 7069 states and 10595 transitions. [2024-11-10 02:01:23,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2019 [2024-11-10 02:01:23,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:01:23,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-10 02:01:23,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 02:01:23,977 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:01:23,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:01:23,979 INFO L85 PathProgramCache]: Analyzing trace with hash 983046763, now seen corresponding path program 1 times [2024-11-10 02:01:23,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:01:23,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350657043] [2024-11-10 02:01:23,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:01:23,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:01:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat