./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.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.vis_arrays_two_p1.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 a615b663b5895b4b891110151ed37d2c5777d9e61c5a340653346e5f4d27eeef --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 03:02:40,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 03:02:40,972 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 03:02:40,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 03:02:40,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 03:02:41,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 03:02:41,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 03:02:41,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 03:02:41,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 03:02:41,011 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 03:02:41,013 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 03:02:41,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 03:02:41,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 03:02:41,014 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 03:02:41,015 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 03:02:41,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 03:02:41,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 03:02:41,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 03:02:41,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 03:02:41,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 03:02:41,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 03:02:41,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 03:02:41,022 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 03:02:41,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 03:02:41,023 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 03:02:41,023 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 03:02:41,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 03:02:41,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 03:02:41,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 03:02:41,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 03:02:41,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 03:02:41,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 03:02:41,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 03:02:41,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 03:02:41,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 03:02:41,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 03:02:41,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 03:02:41,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 03:02:41,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 03:02:41,027 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a615b663b5895b4b891110151ed37d2c5777d9e61c5a340653346e5f4d27eeef [2024-11-10 03:02:41,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 03:02:41,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 03:02:41,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 03:02:41,316 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 03:02:41,317 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 03:02:41,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c [2024-11-10 03:02:42,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 03:02:43,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 03:02:43,078 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c [2024-11-10 03:02:43,098 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13a7cf7e9/79ca3f01d2a2402c9b0084f227d73c01/FLAG9cc9fe84d [2024-11-10 03:02:43,111 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13a7cf7e9/79ca3f01d2a2402c9b0084f227d73c01 [2024-11-10 03:02:43,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 03:02:43,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 03:02:43,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 03:02:43,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 03:02:43,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 03:02:43,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:43,123 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61114300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43, skipping insertion in model container [2024-11-10 03:02:43,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:43,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 03:02:43,401 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.vis_arrays_two_p1.c[1257,1270] [2024-11-10 03:02:43,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 03:02:43,765 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 03:02:43,795 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.vis_arrays_two_p1.c[1257,1270] [2024-11-10 03:02:43,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 03:02:43,947 INFO L204 MainTranslator]: Completed translation [2024-11-10 03:02:43,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43 WrapperNode [2024-11-10 03:02:43,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 03:02:43,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 03:02:43,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 03:02:43,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 03:02:43,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,283 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2920 [2024-11-10 03:02:44,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 03:02:44,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 03:02:44,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 03:02:44,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 03:02:44,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,344 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,453 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 03:02:44,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,559 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 03:02:44,728 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 03:02:44,728 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 03:02:44,728 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 03:02:44,729 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (1/1) ... [2024-11-10 03:02:44,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 03:02:44,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 03:02:44,924 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 03:02:44,929 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 03:02:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 03:02:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 03:02:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 03:02:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 03:02:45,386 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 03:02:45,389 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 03:02:48,251 INFO L? ?]: Removed 1802 outVars from TransFormulas that were not future-live. [2024-11-10 03:02:48,252 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 03:02:48,395 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 03:02:48,396 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 03:02:48,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 03:02:48 BoogieIcfgContainer [2024-11-10 03:02:48,397 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 03:02:48,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 03:02:48,399 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 03:02:48,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 03:02:48,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:02:43" (1/3) ... [2024-11-10 03:02:48,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258f126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:02:48, skipping insertion in model container [2024-11-10 03:02:48,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:02:43" (2/3) ... [2024-11-10 03:02:48,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258f126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:02:48, skipping insertion in model container [2024-11-10 03:02:48,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 03:02:48" (3/3) ... [2024-11-10 03:02:48,405 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_two_p1.c [2024-11-10 03:02:48,423 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 03:02:48,423 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 03:02:48,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 03:02:48,526 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;@18fd15b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 03:02:48,526 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 03:02:48,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 845 states, 843 states have (on average 1.4970344009489918) internal successors, (1262), 844 states have internal predecessors, (1262), 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 03:02:48,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 03:02:48,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:02:48,543 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] [2024-11-10 03:02:48,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:02:48,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:02:48,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1250120621, now seen corresponding path program 1 times [2024-11-10 03:02:48,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:02:48,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438126232] [2024-11-10 03:02:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:02:48,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:02:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:02:50,952 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 03:02:50,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:02:50,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438126232] [2024-11-10 03:02:50,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438126232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:02:50,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:02:50,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 03:02:50,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997020936] [2024-11-10 03:02:50,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:02:50,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 03:02:50,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:02:50,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 03:02:50,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 03:02:50,998 INFO L87 Difference]: Start difference. First operand has 845 states, 843 states have (on average 1.4970344009489918) internal successors, (1262), 844 states have internal predecessors, (1262), 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 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 03:02:51,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:02:51,588 INFO L93 Difference]: Finished difference Result 1645 states and 2461 transitions. [2024-11-10 03:02:51,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 03:02:51,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2024-11-10 03:02:51,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:02:51,614 INFO L225 Difference]: With dead ends: 1645 [2024-11-10 03:02:51,614 INFO L226 Difference]: Without dead ends: 842 [2024-11-10 03:02:51,624 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 03:02:51,627 INFO L432 NwaCegarLoop]: 1046 mSDtfsCounter, 0 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:02:51,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3133 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 03:02:51,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-10 03:02:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2024-11-10 03:02:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.4958382877526755) internal successors, (1258), 841 states have internal predecessors, (1258), 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 03:02:51,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1258 transitions. [2024-11-10 03:02:51,711 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1258 transitions. Word has length 60 [2024-11-10 03:02:51,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:02:51,712 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1258 transitions. [2024-11-10 03:02:51,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 03:02:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1258 transitions. [2024-11-10 03:02:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-10 03:02:51,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:02:51,714 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] [2024-11-10 03:02:51,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 03:02:51,715 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:02:51,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:02:51,716 INFO L85 PathProgramCache]: Analyzing trace with hash 244088231, now seen corresponding path program 1 times [2024-11-10 03:02:51,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:02:51,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772407722] [2024-11-10 03:02:51,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:02:51,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:02:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:02:52,245 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 03:02:52,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:02:52,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772407722] [2024-11-10 03:02:52,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772407722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:02:52,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:02:52,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 03:02:52,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493762182] [2024-11-10 03:02:52,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:02:52,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 03:02:52,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:02:52,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 03:02:52,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 03:02:52,252 INFO L87 Difference]: Start difference. First operand 842 states and 1258 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 03:02:52,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:02:52,671 INFO L93 Difference]: Finished difference Result 1644 states and 2457 transitions. [2024-11-10 03:02:52,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 03:02:52,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2024-11-10 03:02:52,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:02:52,675 INFO L225 Difference]: With dead ends: 1644 [2024-11-10 03:02:52,676 INFO L226 Difference]: Without dead ends: 844 [2024-11-10 03:02:52,677 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 03:02:52,678 INFO L432 NwaCegarLoop]: 1046 mSDtfsCounter, 0 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 03:02:52,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3130 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 03:02:52,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-11-10 03:02:52,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2024-11-10 03:02:52,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 1.4946619217081851) internal successors, (1260), 843 states have internal predecessors, (1260), 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 03:02:52,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1260 transitions. [2024-11-10 03:02:52,698 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1260 transitions. Word has length 61 [2024-11-10 03:02:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:02:52,698 INFO L471 AbstractCegarLoop]: Abstraction has 844 states and 1260 transitions. [2024-11-10 03:02:52,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 03:02:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1260 transitions. [2024-11-10 03:02:52,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-10 03:02:52,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:02:52,700 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] [2024-11-10 03:02:52,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 03:02:52,701 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:02:52,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:02:52,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1275954606, now seen corresponding path program 1 times [2024-11-10 03:02:52,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:02:52,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078877309] [2024-11-10 03:02:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:02:52,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:02:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:02:54,113 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 03:02:54,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:02:54,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078877309] [2024-11-10 03:02:54,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078877309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:02:54,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:02:54,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 03:02:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841613250] [2024-11-10 03:02:54,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:02:54,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 03:02:54,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:02:54,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 03:02:54,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 03:02:54,118 INFO L87 Difference]: Start difference. First operand 844 states and 1260 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 03:02:54,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:02:54,554 INFO L93 Difference]: Finished difference Result 1648 states and 2461 transitions. [2024-11-10 03:02:54,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 03:02:54,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2024-11-10 03:02:54,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:02:54,560 INFO L225 Difference]: With dead ends: 1648 [2024-11-10 03:02:54,560 INFO L226 Difference]: Without dead ends: 846 [2024-11-10 03:02:54,562 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 03:02:54,563 INFO L432 NwaCegarLoop]: 1046 mSDtfsCounter, 0 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 03:02:54,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3130 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 03:02:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-11-10 03:02:54,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 846. [2024-11-10 03:02:54,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 845 states have (on average 1.493491124260355) internal successors, (1262), 845 states have internal predecessors, (1262), 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 03:02:54,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1262 transitions. [2024-11-10 03:02:54,587 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1262 transitions. Word has length 62 [2024-11-10 03:02:54,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:02:54,588 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1262 transitions. [2024-11-10 03:02:54,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 03:02:54,588 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1262 transitions. [2024-11-10 03:02:54,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-10 03:02:54,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:02:54,590 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] [2024-11-10 03:02:54,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 03:02:54,591 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:02:54,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:02:54,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1804776834, now seen corresponding path program 1 times [2024-11-10 03:02:54,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:02:54,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566246685] [2024-11-10 03:02:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:02:54,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:02:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:02:55,019 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 03:02:55,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:02:55,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566246685] [2024-11-10 03:02:55,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566246685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:02:55,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:02:55,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:02:55,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28544965] [2024-11-10 03:02:55,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:02:55,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:02:55,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:02:55,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:02:55,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:02:55,023 INFO L87 Difference]: Start difference. First operand 846 states and 1262 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 03:02:55,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:02:55,538 INFO L93 Difference]: Finished difference Result 1656 states and 2471 transitions. [2024-11-10 03:02:55,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:02:55,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2024-11-10 03:02:55,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:02:55,542 INFO L225 Difference]: With dead ends: 1656 [2024-11-10 03:02:55,543 INFO L226 Difference]: Without dead ends: 852 [2024-11-10 03:02:55,544 INFO L431 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 [2024-11-10 03:02:55,545 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 4 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4170 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:02:55,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4170 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 03:02:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2024-11-10 03:02:55,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 852. [2024-11-10 03:02:55,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 1.4923619271445359) internal successors, (1270), 851 states have internal predecessors, (1270), 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 03:02:55,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1270 transitions. [2024-11-10 03:02:55,566 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1270 transitions. Word has length 63 [2024-11-10 03:02:55,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:02:55,566 INFO L471 AbstractCegarLoop]: Abstraction has 852 states and 1270 transitions. [2024-11-10 03:02:55,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 03:02:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1270 transitions. [2024-11-10 03:02:55,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-10 03:02:55,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:02:55,571 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] [2024-11-10 03:02:55,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 03:02:55,571 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:02:55,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:02:55,572 INFO L85 PathProgramCache]: Analyzing trace with hash -498951588, now seen corresponding path program 1 times [2024-11-10 03:02:55,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:02:55,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445740541] [2024-11-10 03:02:55,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:02:55,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:02:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:02:56,016 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 03:02:56,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:02:56,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445740541] [2024-11-10 03:02:56,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445740541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:02:56,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:02:56,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 03:02:56,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642283607] [2024-11-10 03:02:56,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:02:56,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 03:02:56,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:02:56,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 03:02:56,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:02:56,022 INFO L87 Difference]: Start difference. First operand 852 states and 1270 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 03:02:56,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:02:56,554 INFO L93 Difference]: Finished difference Result 1668 states and 2487 transitions. [2024-11-10 03:02:56,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:02:56,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 64 [2024-11-10 03:02:56,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:02:56,558 INFO L225 Difference]: With dead ends: 1668 [2024-11-10 03:02:56,558 INFO L226 Difference]: Without dead ends: 858 [2024-11-10 03:02:56,560 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 03:02:56,560 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 4 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4170 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:02:56,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4170 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 03:02:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2024-11-10 03:02:56,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2024-11-10 03:02:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 1.4912485414235706) internal successors, (1278), 857 states have internal predecessors, (1278), 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 03:02:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1278 transitions. [2024-11-10 03:02:56,578 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1278 transitions. Word has length 64 [2024-11-10 03:02:56,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:02:56,578 INFO L471 AbstractCegarLoop]: Abstraction has 858 states and 1278 transitions. [2024-11-10 03:02:56,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 03:02:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1278 transitions. [2024-11-10 03:02:56,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-10 03:02:56,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:02:56,580 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] [2024-11-10 03:02:56,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 03:02:56,580 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:02:56,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:02:56,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1430565640, now seen corresponding path program 1 times [2024-11-10 03:02:56,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:02:56,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686771363] [2024-11-10 03:02:56,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:02:56,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:02:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:02:57,536 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 03:02:57,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:02:57,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686771363] [2024-11-10 03:02:57,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686771363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:02:57,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:02:57,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:02:57,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065462181] [2024-11-10 03:02:57,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:02:57,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:02:57,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:02:57,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:02:57,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:02:57,539 INFO L87 Difference]: Start difference. First operand 858 states and 1278 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 03:02:58,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:02:58,002 INFO L93 Difference]: Finished difference Result 1676 states and 2497 transitions. [2024-11-10 03:02:58,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:02:58,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 65 [2024-11-10 03:02:58,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:02:58,006 INFO L225 Difference]: With dead ends: 1676 [2024-11-10 03:02:58,008 INFO L226 Difference]: Without dead ends: 860 [2024-11-10 03:02:58,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:02:58,013 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 1216 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 03:02:58,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 3127 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 03:02:58,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-10 03:02:58,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 860. [2024-11-10 03:02:58,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 1.490104772991851) internal successors, (1280), 859 states have internal predecessors, (1280), 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 03:02:58,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1280 transitions. [2024-11-10 03:02:58,031 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1280 transitions. Word has length 65 [2024-11-10 03:02:58,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:02:58,032 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 1280 transitions. [2024-11-10 03:02:58,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 03:02:58,035 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1280 transitions. [2024-11-10 03:02:58,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-10 03:02:58,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:02:58,037 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] [2024-11-10 03:02:58,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 03:02:58,038 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:02:58,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:02:58,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1106864961, now seen corresponding path program 1 times [2024-11-10 03:02:58,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:02:58,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116621797] [2024-11-10 03:02:58,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:02:58,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:02:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:02:58,991 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 03:02:58,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:02:58,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116621797] [2024-11-10 03:02:58,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116621797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:02:58,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:02:58,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:02:58,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12963018] [2024-11-10 03:02:58,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:02:58,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:02:58,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:02:58,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:02:58,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:02:58,994 INFO L87 Difference]: Start difference. First operand 860 states and 1280 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 03:02:59,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:02:59,513 INFO L93 Difference]: Finished difference Result 1682 states and 2503 transitions. [2024-11-10 03:02:59,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:02:59,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-10 03:02:59,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:02:59,521 INFO L225 Difference]: With dead ends: 1682 [2024-11-10 03:02:59,522 INFO L226 Difference]: Without dead ends: 864 [2024-11-10 03:02:59,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:02:59,527 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 1210 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:02:59,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 3127 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 03:02:59,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-10 03:02:59,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 860. [2024-11-10 03:02:59,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 1.490104772991851) internal successors, (1280), 859 states have internal predecessors, (1280), 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 03:02:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1280 transitions. [2024-11-10 03:02:59,548 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1280 transitions. Word has length 66 [2024-11-10 03:02:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:02:59,549 INFO L471 AbstractCegarLoop]: Abstraction has 860 states and 1280 transitions. [2024-11-10 03:02:59,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 03:02:59,549 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1280 transitions. [2024-11-10 03:02:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-10 03:02:59,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:02:59,550 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] [2024-11-10 03:02:59,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 03:02:59,551 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:02:59,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:02:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1847104504, now seen corresponding path program 1 times [2024-11-10 03:02:59,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:02:59,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855833606] [2024-11-10 03:02:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:02:59,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:02:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:00,494 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 03:03:00,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:00,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855833606] [2024-11-10 03:03:00,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855833606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:00,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:00,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 03:03:00,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417340621] [2024-11-10 03:03:00,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:00,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 03:03:00,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:00,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 03:03:00,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-10 03:03:00,498 INFO L87 Difference]: Start difference. First operand 860 states and 1280 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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 03:03:01,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:01,616 INFO L93 Difference]: Finished difference Result 1688 states and 2511 transitions. [2024-11-10 03:03:01,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 03:03:01,617 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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 67 [2024-11-10 03:03:01,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:01,621 INFO L225 Difference]: With dead ends: 1688 [2024-11-10 03:03:01,621 INFO L226 Difference]: Without dead ends: 870 [2024-11-10 03:03:01,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-10 03:03:01,623 INFO L432 NwaCegarLoop]: 1042 mSDtfsCounter, 6 mSDsluCounter, 7270 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8312 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:01,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8312 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 03:03:01,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-10 03:03:01,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 864. [2024-11-10 03:03:01,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 1.4901506373117033) internal successors, (1286), 863 states have internal predecessors, (1286), 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 03:03:01,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1286 transitions. [2024-11-10 03:03:01,643 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1286 transitions. Word has length 67 [2024-11-10 03:03:01,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:01,644 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1286 transitions. [2024-11-10 03:03:01,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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 03:03:01,644 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1286 transitions. [2024-11-10 03:03:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-10 03:03:01,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:01,648 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] [2024-11-10 03:03:01,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 03:03:01,649 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:01,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:01,650 INFO L85 PathProgramCache]: Analyzing trace with hash 368150246, now seen corresponding path program 1 times [2024-11-10 03:03:01,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:01,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966904209] [2024-11-10 03:03:01,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:01,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:02,653 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 03:03:02,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:02,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966904209] [2024-11-10 03:03:02,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966904209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:02,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:02,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 03:03:02,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108246592] [2024-11-10 03:03:02,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:02,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 03:03:02,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:02,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 03:03:02,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:03:02,656 INFO L87 Difference]: Start difference. First operand 864 states and 1286 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 03:03:03,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:03,268 INFO L93 Difference]: Finished difference Result 1690 states and 2515 transitions. [2024-11-10 03:03:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:03,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 68 [2024-11-10 03:03:03,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:03,273 INFO L225 Difference]: With dead ends: 1690 [2024-11-10 03:03:03,273 INFO L226 Difference]: Without dead ends: 868 [2024-11-10 03:03:03,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 03:03:03,276 INFO L432 NwaCegarLoop]: 1043 mSDtfsCounter, 1203 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 4160 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:03,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 4160 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 03:03:03,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-11-10 03:03:03,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 864. [2024-11-10 03:03:03,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 1.4901506373117033) internal successors, (1286), 863 states have internal predecessors, (1286), 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 03:03:03,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1286 transitions. [2024-11-10 03:03:03,296 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1286 transitions. Word has length 68 [2024-11-10 03:03:03,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:03,297 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1286 transitions. [2024-11-10 03:03:03,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 03:03:03,297 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1286 transitions. [2024-11-10 03:03:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-10 03:03:03,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:03,298 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] [2024-11-10 03:03:03,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 03:03:03,299 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:03,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:03,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1253358829, now seen corresponding path program 1 times [2024-11-10 03:03:03,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:03,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908516740] [2024-11-10 03:03:03,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:03,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:04,111 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 03:03:04,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:04,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908516740] [2024-11-10 03:03:04,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908516740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:04,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:04,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 03:03:04,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912634605] [2024-11-10 03:03:04,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:04,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 03:03:04,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:04,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 03:03:04,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-10 03:03:04,114 INFO L87 Difference]: Start difference. First operand 864 states and 1286 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 03:03:05,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:05,156 INFO L93 Difference]: Finished difference Result 1694 states and 2521 transitions. [2024-11-10 03:03:05,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 03:03:05,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 69 [2024-11-10 03:03:05,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:05,160 INFO L225 Difference]: With dead ends: 1694 [2024-11-10 03:03:05,160 INFO L226 Difference]: Without dead ends: 872 [2024-11-10 03:03:05,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-10 03:03:05,163 INFO L432 NwaCegarLoop]: 1042 mSDtfsCounter, 7 mSDsluCounter, 7270 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8312 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:05,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8312 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 03:03:05,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2024-11-10 03:03:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 870. [2024-11-10 03:03:05,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 869 states have (on average 1.4890678941311852) internal successors, (1294), 869 states have internal predecessors, (1294), 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 03:03:05,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1294 transitions. [2024-11-10 03:03:05,182 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1294 transitions. Word has length 69 [2024-11-10 03:03:05,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:05,182 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1294 transitions. [2024-11-10 03:03:05,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 03:03:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1294 transitions. [2024-11-10 03:03:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-10 03:03:05,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:05,184 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] [2024-11-10 03:03:05,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 03:03:05,184 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:05,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:05,185 INFO L85 PathProgramCache]: Analyzing trace with hash -693551605, now seen corresponding path program 1 times [2024-11-10 03:03:05,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:05,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646505102] [2024-11-10 03:03:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:05,557 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 03:03:05,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:05,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646505102] [2024-11-10 03:03:05,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646505102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:05,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:05,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:03:05,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826876890] [2024-11-10 03:03:05,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:05,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:03:05,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:05,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:03:05,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:03:05,560 INFO L87 Difference]: Start difference. First operand 870 states and 1294 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 03:03:06,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:06,062 INFO L93 Difference]: Finished difference Result 1704 states and 2535 transitions. [2024-11-10 03:03:06,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:06,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 70 [2024-11-10 03:03:06,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:06,066 INFO L225 Difference]: With dead ends: 1704 [2024-11-10 03:03:06,066 INFO L226 Difference]: Without dead ends: 876 [2024-11-10 03:03:06,068 INFO L431 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 [2024-11-10 03:03:06,068 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 4 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4170 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:06,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4170 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 03:03:06,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2024-11-10 03:03:06,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2024-11-10 03:03:06,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 875 states have (on average 1.488) internal successors, (1302), 875 states have internal predecessors, (1302), 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 03:03:06,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1302 transitions. [2024-11-10 03:03:06,084 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1302 transitions. Word has length 70 [2024-11-10 03:03:06,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:06,084 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1302 transitions. [2024-11-10 03:03:06,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 03:03:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1302 transitions. [2024-11-10 03:03:06,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 03:03:06,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:06,085 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] [2024-11-10 03:03:06,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 03:03:06,085 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:06,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:06,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1885324087, now seen corresponding path program 1 times [2024-11-10 03:03:06,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:06,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933066073] [2024-11-10 03:03:06,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:06,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:06,429 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 03:03:06,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:06,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933066073] [2024-11-10 03:03:06,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933066073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:06,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:06,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:03:06,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864278999] [2024-11-10 03:03:06,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:06,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:03:06,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:06,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:03:06,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:03:06,431 INFO L87 Difference]: Start difference. First operand 876 states and 1302 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 03:03:06,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:06,975 INFO L93 Difference]: Finished difference Result 1716 states and 2551 transitions. [2024-11-10 03:03:06,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:06,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 71 [2024-11-10 03:03:06,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:06,979 INFO L225 Difference]: With dead ends: 1716 [2024-11-10 03:03:06,979 INFO L226 Difference]: Without dead ends: 882 [2024-11-10 03:03:06,981 INFO L431 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 [2024-11-10 03:03:06,982 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 4 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4170 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:06,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4170 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 03:03:06,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-10 03:03:06,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-11-10 03:03:06,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 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 03:03:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-11-10 03:03:07,000 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 71 [2024-11-10 03:03:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:07,000 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-11-10 03:03:07,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 03:03:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-11-10 03:03:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-10 03:03:07,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:07,001 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] [2024-11-10 03:03:07,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 03:03:07,002 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:07,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:07,003 INFO L85 PathProgramCache]: Analyzing trace with hash 485866709, now seen corresponding path program 1 times [2024-11-10 03:03:07,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:07,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880780914] [2024-11-10 03:03:07,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:07,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:07,885 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 03:03:07,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:07,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880780914] [2024-11-10 03:03:07,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880780914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:07,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:07,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 03:03:07,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850186925] [2024-11-10 03:03:07,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:07,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 03:03:07,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:07,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 03:03:07,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:03:07,888 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 03:03:08,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:08,468 INFO L93 Difference]: Finished difference Result 1726 states and 2563 transitions. [2024-11-10 03:03:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:08,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 72 [2024-11-10 03:03:08,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:08,473 INFO L225 Difference]: With dead ends: 1726 [2024-11-10 03:03:08,473 INFO L226 Difference]: Without dead ends: 886 [2024-11-10 03:03:08,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 03:03:08,475 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 1217 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:08,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 4168 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 03:03:08,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-10 03:03:08,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2024-11-10 03:03:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 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 03:03:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-11-10 03:03:08,491 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 72 [2024-11-10 03:03:08,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:08,492 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-11-10 03:03:08,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 03:03:08,492 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-11-10 03:03:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-10 03:03:08,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:08,493 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] [2024-11-10 03:03:08,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 03:03:08,493 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:08,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:08,494 INFO L85 PathProgramCache]: Analyzing trace with hash -232048284, now seen corresponding path program 1 times [2024-11-10 03:03:08,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:08,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263606099] [2024-11-10 03:03:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:08,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:09,327 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 03:03:09,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:09,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263606099] [2024-11-10 03:03:09,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263606099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:09,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:09,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:03:09,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618352926] [2024-11-10 03:03:09,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:09,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:03:09,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:09,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:03:09,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:03:09,329 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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 03:03:09,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:09,761 INFO L93 Difference]: Finished difference Result 1724 states and 2561 transitions. [2024-11-10 03:03:09,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:09,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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 73 [2024-11-10 03:03:09,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:09,765 INFO L225 Difference]: With dead ends: 1724 [2024-11-10 03:03:09,765 INFO L226 Difference]: Without dead ends: 884 [2024-11-10 03:03:09,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:03:09,767 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 1232 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:09,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 3128 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 03:03:09,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-10 03:03:09,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 884. [2024-11-10 03:03:09,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.4858437146092864) internal successors, (1312), 883 states have internal predecessors, (1312), 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 03:03:09,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1312 transitions. [2024-11-10 03:03:09,783 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1312 transitions. Word has length 73 [2024-11-10 03:03:09,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:09,783 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1312 transitions. [2024-11-10 03:03:09,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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 03:03:09,783 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1312 transitions. [2024-11-10 03:03:09,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-10 03:03:09,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:09,784 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] [2024-11-10 03:03:09,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 03:03:09,785 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:09,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:09,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1385642795, now seen corresponding path program 1 times [2024-11-10 03:03:09,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:09,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111631342] [2024-11-10 03:03:09,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:09,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:10,773 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 03:03:10,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111631342] [2024-11-10 03:03:10,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111631342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:10,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:10,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:03:10,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735286714] [2024-11-10 03:03:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:10,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:03:10,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:10,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:03:10,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:03:10,776 INFO L87 Difference]: Start difference. First operand 884 states and 1312 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 03:03:11,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:11,406 INFO L93 Difference]: Finished difference Result 1728 states and 2565 transitions. [2024-11-10 03:03:11,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:11,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 74 [2024-11-10 03:03:11,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:11,410 INFO L225 Difference]: With dead ends: 1728 [2024-11-10 03:03:11,410 INFO L226 Difference]: Without dead ends: 886 [2024-11-10 03:03:11,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 03:03:11,413 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 1230 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 2904 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:11,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 2904 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 03:03:11,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-10 03:03:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 884. [2024-11-10 03:03:11,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.4858437146092864) internal successors, (1312), 883 states have internal predecessors, (1312), 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 03:03:11,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1312 transitions. [2024-11-10 03:03:11,430 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1312 transitions. Word has length 74 [2024-11-10 03:03:11,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:11,430 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1312 transitions. [2024-11-10 03:03:11,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 03:03:11,431 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1312 transitions. [2024-11-10 03:03:11,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-10 03:03:11,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:11,432 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] [2024-11-10 03:03:11,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 03:03:11,432 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:11,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:11,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1589612130, now seen corresponding path program 1 times [2024-11-10 03:03:11,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:11,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79807774] [2024-11-10 03:03:11,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:11,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:12,421 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 03:03:12,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:12,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79807774] [2024-11-10 03:03:12,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79807774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:12,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:12,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 03:03:12,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103204229] [2024-11-10 03:03:12,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:12,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 03:03:12,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:12,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 03:03:12,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:03:12,426 INFO L87 Difference]: Start difference. First operand 884 states and 1312 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 03:03:13,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:13,033 INFO L93 Difference]: Finished difference Result 1730 states and 2567 transitions. [2024-11-10 03:03:13,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:13,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 75 [2024-11-10 03:03:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:13,037 INFO L225 Difference]: With dead ends: 1730 [2024-11-10 03:03:13,037 INFO L226 Difference]: Without dead ends: 888 [2024-11-10 03:03:13,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 03:03:13,039 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 1220 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:13,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 4168 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 03:03:13,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-11-10 03:03:13,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 884. [2024-11-10 03:03:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.4858437146092864) internal successors, (1312), 883 states have internal predecessors, (1312), 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 03:03:13,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1312 transitions. [2024-11-10 03:03:13,062 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1312 transitions. Word has length 75 [2024-11-10 03:03:13,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:13,062 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1312 transitions. [2024-11-10 03:03:13,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 03:03:13,063 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1312 transitions. [2024-11-10 03:03:13,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-10 03:03:13,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:13,064 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] [2024-11-10 03:03:13,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 03:03:13,064 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:13,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:13,065 INFO L85 PathProgramCache]: Analyzing trace with hash 182707095, now seen corresponding path program 1 times [2024-11-10 03:03:13,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:13,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427859264] [2024-11-10 03:03:13,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:13,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:14,069 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 03:03:14,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:14,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427859264] [2024-11-10 03:03:14,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427859264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:14,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:14,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 03:03:14,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136279303] [2024-11-10 03:03:14,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:14,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 03:03:14,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:14,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 03:03:14,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:03:14,073 INFO L87 Difference]: Start difference. First operand 884 states and 1312 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 03:03:14,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:14,926 INFO L93 Difference]: Finished difference Result 1730 states and 2567 transitions. [2024-11-10 03:03:14,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:14,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 76 [2024-11-10 03:03:14,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:14,932 INFO L225 Difference]: With dead ends: 1730 [2024-11-10 03:03:14,932 INFO L226 Difference]: Without dead ends: 888 [2024-11-10 03:03:14,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 03:03:14,934 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 1212 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:14,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 3868 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 03:03:14,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-11-10 03:03:14,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 884. [2024-11-10 03:03:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.4858437146092864) internal successors, (1312), 883 states have internal predecessors, (1312), 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 03:03:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1312 transitions. [2024-11-10 03:03:14,949 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1312 transitions. Word has length 76 [2024-11-10 03:03:14,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:14,949 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1312 transitions. [2024-11-10 03:03:14,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 03:03:14,949 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1312 transitions. [2024-11-10 03:03:14,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-10 03:03:14,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:14,950 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] [2024-11-10 03:03:14,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 03:03:14,950 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:14,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:14,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1851920897, now seen corresponding path program 1 times [2024-11-10 03:03:14,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:14,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340935081] [2024-11-10 03:03:14,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:14,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:15,734 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 03:03:15,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:15,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340935081] [2024-11-10 03:03:15,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340935081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:15,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:15,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 03:03:15,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212038125] [2024-11-10 03:03:15,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:15,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 03:03:15,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:15,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 03:03:15,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:03:15,736 INFO L87 Difference]: Start difference. First operand 884 states and 1312 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 03:03:16,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:16,316 INFO L93 Difference]: Finished difference Result 1730 states and 2567 transitions. [2024-11-10 03:03:16,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:16,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 77 [2024-11-10 03:03:16,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:16,321 INFO L225 Difference]: With dead ends: 1730 [2024-11-10 03:03:16,321 INFO L226 Difference]: Without dead ends: 888 [2024-11-10 03:03:16,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 03:03:16,323 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 1225 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:16,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 4168 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 03:03:16,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-11-10 03:03:16,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 884. [2024-11-10 03:03:16,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.4858437146092864) internal successors, (1312), 883 states have internal predecessors, (1312), 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 03:03:16,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1312 transitions. [2024-11-10 03:03:16,341 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1312 transitions. Word has length 77 [2024-11-10 03:03:16,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:16,342 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1312 transitions. [2024-11-10 03:03:16,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 03:03:16,342 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1312 transitions. [2024-11-10 03:03:16,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 03:03:16,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:16,343 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] [2024-11-10 03:03:16,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 03:03:16,343 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:16,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:16,344 INFO L85 PathProgramCache]: Analyzing trace with hash 328990678, now seen corresponding path program 1 times [2024-11-10 03:03:16,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:16,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964522764] [2024-11-10 03:03:16,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:16,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:17,264 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 03:03:17,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:17,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964522764] [2024-11-10 03:03:17,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964522764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:17,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:17,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:03:17,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863355625] [2024-11-10 03:03:17,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:17,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:03:17,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:17,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:03:17,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:03:17,268 INFO L87 Difference]: Start difference. First operand 884 states and 1312 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 03:03:17,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:17,850 INFO L93 Difference]: Finished difference Result 1730 states and 2567 transitions. [2024-11-10 03:03:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:17,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 78 [2024-11-10 03:03:17,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:17,854 INFO L225 Difference]: With dead ends: 1730 [2024-11-10 03:03:17,854 INFO L226 Difference]: Without dead ends: 888 [2024-11-10 03:03:17,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 03:03:17,857 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 1204 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 2904 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:17,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 2904 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 03:03:17,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-11-10 03:03:17,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 884. [2024-11-10 03:03:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.4858437146092864) internal successors, (1312), 883 states have internal predecessors, (1312), 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 03:03:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1312 transitions. [2024-11-10 03:03:17,872 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1312 transitions. Word has length 78 [2024-11-10 03:03:17,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:17,872 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1312 transitions. [2024-11-10 03:03:17,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 03:03:17,873 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1312 transitions. [2024-11-10 03:03:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-10 03:03:17,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:17,874 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] [2024-11-10 03:03:17,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 03:03:17,874 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:17,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:17,875 INFO L85 PathProgramCache]: Analyzing trace with hash -381372165, now seen corresponding path program 1 times [2024-11-10 03:03:17,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:17,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718512289] [2024-11-10 03:03:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:17,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:18,844 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 03:03:18,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:18,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718512289] [2024-11-10 03:03:18,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718512289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:18,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:18,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 03:03:18,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234450884] [2024-11-10 03:03:18,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:18,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 03:03:18,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:18,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 03:03:18,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:03:18,846 INFO L87 Difference]: Start difference. First operand 884 states and 1312 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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 03:03:19,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:19,632 INFO L93 Difference]: Finished difference Result 1730 states and 2567 transitions. [2024-11-10 03:03:19,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:19,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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 79 [2024-11-10 03:03:19,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:19,636 INFO L225 Difference]: With dead ends: 1730 [2024-11-10 03:03:19,636 INFO L226 Difference]: Without dead ends: 888 [2024-11-10 03:03:19,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 03:03:19,638 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 1217 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:19,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 3868 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 03:03:19,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-11-10 03:03:19,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 884. [2024-11-10 03:03:19,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.4858437146092864) internal successors, (1312), 883 states have internal predecessors, (1312), 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 03:03:19,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1312 transitions. [2024-11-10 03:03:19,652 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1312 transitions. Word has length 79 [2024-11-10 03:03:19,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:19,652 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 1312 transitions. [2024-11-10 03:03:19,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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 03:03:19,652 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1312 transitions. [2024-11-10 03:03:19,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-10 03:03:19,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:19,653 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] [2024-11-10 03:03:19,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 03:03:19,655 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:19,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:19,655 INFO L85 PathProgramCache]: Analyzing trace with hash -299064751, now seen corresponding path program 1 times [2024-11-10 03:03:19,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:19,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275777431] [2024-11-10 03:03:19,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:19,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:20,998 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 03:03:20,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:20,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275777431] [2024-11-10 03:03:20,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275777431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:20,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:20,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:03:20,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739659136] [2024-11-10 03:03:20,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:21,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:03:21,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:21,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:03:21,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:03:21,000 INFO L87 Difference]: Start difference. First operand 884 states and 1312 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 03:03:21,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:21,738 INFO L93 Difference]: Finished difference Result 2176 states and 3224 transitions. [2024-11-10 03:03:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:21,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2024-11-10 03:03:21,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:21,743 INFO L225 Difference]: With dead ends: 2176 [2024-11-10 03:03:21,743 INFO L226 Difference]: Without dead ends: 1334 [2024-11-10 03:03:21,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 03:03:21,745 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 1831 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:21,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 2829 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 03:03:21,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2024-11-10 03:03:21,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 904. [2024-11-10 03:03:21,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 903 states have (on average 1.4839424141749724) internal successors, (1340), 903 states have internal predecessors, (1340), 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 03:03:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1340 transitions. [2024-11-10 03:03:21,762 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1340 transitions. Word has length 80 [2024-11-10 03:03:21,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:21,762 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1340 transitions. [2024-11-10 03:03:21,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 03:03:21,762 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1340 transitions. [2024-11-10 03:03:21,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 03:03:21,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:21,763 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] [2024-11-10 03:03:21,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 03:03:21,763 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:21,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:21,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1473142678, now seen corresponding path program 1 times [2024-11-10 03:03:21,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:21,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645170928] [2024-11-10 03:03:21,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:21,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:23,096 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 03:03:23,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:23,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645170928] [2024-11-10 03:03:23,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645170928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:03:23,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:03:23,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 03:03:23,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721801096] [2024-11-10 03:03:23,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:03:23,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 03:03:23,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:03:23,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 03:03:23,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 03:03:23,098 INFO L87 Difference]: Start difference. First operand 904 states and 1340 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 03:03:23,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:03:23,855 INFO L93 Difference]: Finished difference Result 2531 states and 3757 transitions. [2024-11-10 03:03:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 03:03:23,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 81 [2024-11-10 03:03:23,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:03:23,861 INFO L225 Difference]: With dead ends: 2531 [2024-11-10 03:03:23,861 INFO L226 Difference]: Without dead ends: 1689 [2024-11-10 03:03:23,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 03:03:23,863 INFO L432 NwaCegarLoop]: 947 mSDtfsCounter, 3491 mSDsluCounter, 1891 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3491 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 03:03:23,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3491 Valid, 2838 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 03:03:23,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2024-11-10 03:03:23,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 970. [2024-11-10 03:03:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 969 states have (on average 1.4778121775025799) internal successors, (1432), 969 states have internal predecessors, (1432), 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 03:03:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1432 transitions. [2024-11-10 03:03:23,881 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1432 transitions. Word has length 81 [2024-11-10 03:03:23,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:03:23,881 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1432 transitions. [2024-11-10 03:03:23,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 03:03:23,882 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1432 transitions. [2024-11-10 03:03:23,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-10 03:03:23,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:03:23,888 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 03:03:23,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 03:03:23,889 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:03:23,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:03:23,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1468480205, now seen corresponding path program 1 times [2024-11-10 03:03:23,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:03:23,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647015735] [2024-11-10 03:03:23,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:23,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:03:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:30,317 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 03:03:30,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:03:30,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647015735] [2024-11-10 03:03:30,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647015735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 03:03:30,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824291348] [2024-11-10 03:03:30,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:03:30,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 03:03:30,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 03:03:30,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 03:03:30,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 03:03:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:03:33,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 3701 conjuncts, 174 conjuncts are in the unsatisfiable core [2024-11-10 03:03:33,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 03:03:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 03:03:41,470 INFO L311 TraceCheckSpWp]: Computing backward predicates...