./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.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 5b1736736c06966e3b4f5adb4865787ef8bbb0ebdf6c77cc2a8afb60cf5fc8db --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 10:51:02,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 10:51:02,171 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 10:51:02,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 10:51:02,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 10:51:02,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 10:51:02,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 10:51:02,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 10:51:02,209 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 10:51:02,210 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 10:51:02,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 10:51:02,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 10:51:02,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 10:51:02,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 10:51:02,214 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 10:51:02,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 10:51:02,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 10:51:02,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 10:51:02,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 10:51:02,216 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 10:51:02,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 10:51:02,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 10:51:02,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 10:51:02,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 10:51:02,220 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 10:51:02,220 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 10:51:02,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 10:51:02,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 10:51:02,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 10:51:02,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:51:02,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 10:51:02,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 10:51:02,222 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 10:51:02,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 10:51:02,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 10:51:02,223 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 10:51:02,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 10:51:02,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 10:51:02,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 10:51:02,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b1736736c06966e3b4f5adb4865787ef8bbb0ebdf6c77cc2a8afb60cf5fc8db [2024-11-16 10:51:02,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 10:51:02,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 10:51:02,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 10:51:02,480 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 10:51:02,481 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 10:51:02,482 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2024-11-16 10:51:03,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 10:51:04,163 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 10:51:04,163 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2024-11-16 10:51:04,180 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a32f6882/5b8584cc987f4ac5b3ef58ef618b4dfd/FLAGf870bac37 [2024-11-16 10:51:04,485 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a32f6882/5b8584cc987f4ac5b3ef58ef618b4dfd [2024-11-16 10:51:04,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 10:51:04,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 10:51:04,490 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 10:51:04,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 10:51:04,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 10:51:04,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:51:04" (1/1) ... [2024-11-16 10:51:04,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab158b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:04, skipping insertion in model container [2024-11-16 10:51:04,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:51:04" (1/1) ... [2024-11-16 10:51:04,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 10:51:04,741 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.circular_pointer_top_w8_d16_e0.c[1279,1292] [2024-11-16 10:51:05,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:51:05,055 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 10:51:05,066 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.circular_pointer_top_w8_d16_e0.c[1279,1292] [2024-11-16 10:51:05,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:51:05,200 INFO L204 MainTranslator]: Completed translation [2024-11-16 10:51:05,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05 WrapperNode [2024-11-16 10:51:05,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 10:51:05,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 10:51:05,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 10:51:05,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 10:51:05,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,420 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1976 [2024-11-16 10:51:05,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 10:51:05,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 10:51:05,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 10:51:05,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 10:51:05,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,483 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,631 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 10:51:05,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,716 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,725 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 10:51:05,786 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 10:51:05,787 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 10:51:05,787 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 10:51:05,788 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (1/1) ... [2024-11-16 10:51:05,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:51:05,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:51:05,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 10:51:05,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 10:51:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 10:51:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 10:51:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 10:51:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 10:51:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 10:51:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 10:51:06,154 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 10:51:06,156 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 10:51:08,219 INFO L? ?]: Removed 1091 outVars from TransFormulas that were not future-live. [2024-11-16 10:51:08,219 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 10:51:08,326 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 10:51:08,327 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 10:51:08,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:51:08 BoogieIcfgContainer [2024-11-16 10:51:08,327 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 10:51:08,329 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 10:51:08,329 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 10:51:08,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 10:51:08,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:51:04" (1/3) ... [2024-11-16 10:51:08,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b87eb39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:51:08, skipping insertion in model container [2024-11-16 10:51:08,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:51:05" (2/3) ... [2024-11-16 10:51:08,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b87eb39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:51:08, skipping insertion in model container [2024-11-16 10:51:08,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:51:08" (3/3) ... [2024-11-16 10:51:08,337 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2024-11-16 10:51:08,355 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 10:51:08,355 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 10:51:08,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 10:51:08,454 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;@e346ded, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 10:51:08,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 10:51:08,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 555 states, 549 states have (on average 1.4918032786885247) internal successors, (819), 550 states have internal predecessors, (819), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:08,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 10:51:08,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:08,482 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:08,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:08,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1625409850, now seen corresponding path program 1 times [2024-11-16 10:51:08,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:08,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014124137] [2024-11-16 10:51:08,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:08,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:09,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:09,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:09,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:09,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:09,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:09,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014124137] [2024-11-16 10:51:09,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014124137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:09,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:09,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 10:51:09,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324728214] [2024-11-16 10:51:09,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:09,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 10:51:09,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:09,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 10:51:09,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:51:09,121 INFO L87 Difference]: Start difference. First operand has 555 states, 549 states have (on average 1.4918032786885247) internal successors, (819), 550 states have internal predecessors, (819), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:51:09,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:09,404 INFO L93 Difference]: Finished difference Result 1003 states and 1497 transitions. [2024-11-16 10:51:09,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 10:51:09,406 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 150 [2024-11-16 10:51:09,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:09,421 INFO L225 Difference]: With dead ends: 1003 [2024-11-16 10:51:09,421 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:51:09,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:51:09,429 INFO L432 NwaCegarLoop]: 685 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:09,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 685 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:09,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:51:09,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:51:09,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.489908256880734) internal successors, (812), 545 states have internal predecessors, (812), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:09,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 818 transitions. [2024-11-16 10:51:09,517 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 818 transitions. Word has length 150 [2024-11-16 10:51:09,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:09,518 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 818 transitions. [2024-11-16 10:51:09,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:51:09,519 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 818 transitions. [2024-11-16 10:51:09,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 10:51:09,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:09,523 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:09,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 10:51:09,524 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:09,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:09,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1352422711, now seen corresponding path program 1 times [2024-11-16 10:51:09,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:09,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915375018] [2024-11-16 10:51:09,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:09,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,628 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:10,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:10,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915375018] [2024-11-16 10:51:10,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915375018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:10,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:10,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:10,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149221879] [2024-11-16 10:51:10,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:10,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:10,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:10,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:10,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:10,633 INFO L87 Difference]: Start difference. First operand 550 states and 818 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:11,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:11,080 INFO L93 Difference]: Finished difference Result 998 states and 1484 transitions. [2024-11-16 10:51:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:11,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 150 [2024-11-16 10:51:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:11,088 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:51:11,088 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:51:11,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:11,091 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 697 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:11,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1240 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:51:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:51:11,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:51:11,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4880733944954128) internal successors, (811), 545 states have internal predecessors, (811), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:11,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 817 transitions. [2024-11-16 10:51:11,127 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 817 transitions. Word has length 150 [2024-11-16 10:51:11,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:11,129 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 817 transitions. [2024-11-16 10:51:11,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:11,130 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 817 transitions. [2024-11-16 10:51:11,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 10:51:11,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:11,137 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:11,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 10:51:11,137 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:11,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:11,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1158923814, now seen corresponding path program 1 times [2024-11-16 10:51:11,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:11,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229953321] [2024-11-16 10:51:11,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:11,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,614 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:11,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:11,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229953321] [2024-11-16 10:51:11,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229953321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:11,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:11,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:11,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108989517] [2024-11-16 10:51:11,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:11,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:11,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:11,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:11,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:11,619 INFO L87 Difference]: Start difference. First operand 550 states and 817 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:12,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:12,009 INFO L93 Difference]: Finished difference Result 1004 states and 1490 transitions. [2024-11-16 10:51:12,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:51:12,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 151 [2024-11-16 10:51:12,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:12,012 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:51:12,013 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:51:12,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:51:12,015 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 708 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:12,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 1975 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:12,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:51:12,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:51:12,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4862385321100917) internal successors, (810), 545 states have internal predecessors, (810), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:12,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 816 transitions. [2024-11-16 10:51:12,027 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 816 transitions. Word has length 151 [2024-11-16 10:51:12,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:12,028 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 816 transitions. [2024-11-16 10:51:12,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:12,028 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 816 transitions. [2024-11-16 10:51:12,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-16 10:51:12,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:12,031 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:12,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 10:51:12,032 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:12,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:12,036 INFO L85 PathProgramCache]: Analyzing trace with hash 53871960, now seen corresponding path program 1 times [2024-11-16 10:51:12,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:12,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411130234] [2024-11-16 10:51:12,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:12,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:12,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:12,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:12,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:12,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:12,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:12,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411130234] [2024-11-16 10:51:12,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411130234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:12,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:12,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:12,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520238664] [2024-11-16 10:51:12,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:12,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:12,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:12,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:12,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:12,443 INFO L87 Difference]: Start difference. First operand 550 states and 816 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:12,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:12,801 INFO L93 Difference]: Finished difference Result 998 states and 1480 transitions. [2024-11-16 10:51:12,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:12,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 152 [2024-11-16 10:51:12,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:12,805 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:51:12,805 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:51:12,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:12,807 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1500 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:12,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1240 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:12,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:51:12,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:51:12,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4844036697247707) internal successors, (809), 545 states have internal predecessors, (809), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:12,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 815 transitions. [2024-11-16 10:51:12,819 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 815 transitions. Word has length 152 [2024-11-16 10:51:12,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:12,820 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 815 transitions. [2024-11-16 10:51:12,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:12,821 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 815 transitions. [2024-11-16 10:51:12,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-16 10:51:12,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:12,822 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:12,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 10:51:12,823 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:12,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:12,823 INFO L85 PathProgramCache]: Analyzing trace with hash -595827019, now seen corresponding path program 1 times [2024-11-16 10:51:12,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:12,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462654507] [2024-11-16 10:51:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:12,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:13,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:13,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462654507] [2024-11-16 10:51:13,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462654507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:13,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:13,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:13,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172939673] [2024-11-16 10:51:13,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:13,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:13,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:13,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:13,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:13,270 INFO L87 Difference]: Start difference. First operand 550 states and 815 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:13,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:13,659 INFO L93 Difference]: Finished difference Result 998 states and 1478 transitions. [2024-11-16 10:51:13,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:13,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 153 [2024-11-16 10:51:13,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:13,662 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:51:13,662 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:51:13,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:13,664 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1492 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:13,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1240 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:13,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:51:13,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:51:13,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4825688073394496) internal successors, (808), 545 states have internal predecessors, (808), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:13,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 814 transitions. [2024-11-16 10:51:13,681 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 814 transitions. Word has length 153 [2024-11-16 10:51:13,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:13,682 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 814 transitions. [2024-11-16 10:51:13,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:13,683 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 814 transitions. [2024-11-16 10:51:13,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-16 10:51:13,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:13,687 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:13,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 10:51:13,688 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:13,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:13,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2121565997, now seen corresponding path program 1 times [2024-11-16 10:51:13,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:13,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783050867] [2024-11-16 10:51:13,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:13,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:14,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:14,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:14,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:14,158 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:14,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:14,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783050867] [2024-11-16 10:51:14,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783050867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:14,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:14,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:14,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653484311] [2024-11-16 10:51:14,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:14,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:14,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:14,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:14,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:14,161 INFO L87 Difference]: Start difference. First operand 550 states and 814 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:14,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:14,499 INFO L93 Difference]: Finished difference Result 998 states and 1476 transitions. [2024-11-16 10:51:14,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:14,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 154 [2024-11-16 10:51:14,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:14,502 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:51:14,502 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:51:14,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:14,504 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1478 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:14,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1240 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:14,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:51:14,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:51:14,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4807339449541284) internal successors, (807), 545 states have internal predecessors, (807), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 813 transitions. [2024-11-16 10:51:14,517 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 813 transitions. Word has length 154 [2024-11-16 10:51:14,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:14,517 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 813 transitions. [2024-11-16 10:51:14,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:14,518 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 813 transitions. [2024-11-16 10:51:14,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 10:51:14,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:14,519 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:14,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 10:51:14,520 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:14,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:14,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1509435477, now seen corresponding path program 1 times [2024-11-16 10:51:14,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:14,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474531372] [2024-11-16 10:51:14,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:14,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:14,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:14,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:14,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:14,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:14,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474531372] [2024-11-16 10:51:14,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474531372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:14,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:14,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:14,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788356833] [2024-11-16 10:51:14,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:14,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:14,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:14,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:14,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:14,923 INFO L87 Difference]: Start difference. First operand 550 states and 813 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:15,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:15,286 INFO L93 Difference]: Finished difference Result 998 states and 1474 transitions. [2024-11-16 10:51:15,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:15,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 155 [2024-11-16 10:51:15,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:15,289 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:51:15,289 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:51:15,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:15,291 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1470 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:15,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 1240 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:15,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:51:15,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:51:15,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4788990825688073) internal successors, (806), 545 states have internal predecessors, (806), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 812 transitions. [2024-11-16 10:51:15,303 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 812 transitions. Word has length 155 [2024-11-16 10:51:15,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:15,304 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 812 transitions. [2024-11-16 10:51:15,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 812 transitions. [2024-11-16 10:51:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-16 10:51:15,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:15,306 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:15,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 10:51:15,306 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:15,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:15,307 INFO L85 PathProgramCache]: Analyzing trace with hash -105156200, now seen corresponding path program 1 times [2024-11-16 10:51:15,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:15,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251533127] [2024-11-16 10:51:15,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:15,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:15,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:15,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251533127] [2024-11-16 10:51:15,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251533127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:15,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:15,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:15,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606543060] [2024-11-16 10:51:15,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:15,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:15,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:15,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:15,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:15,773 INFO L87 Difference]: Start difference. First operand 550 states and 812 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:16,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:16,135 INFO L93 Difference]: Finished difference Result 998 states and 1472 transitions. [2024-11-16 10:51:16,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:16,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 156 [2024-11-16 10:51:16,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:16,138 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:51:16,138 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:51:16,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:16,140 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1462 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:16,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 1240 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:16,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:51:16,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:51:16,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4770642201834863) internal successors, (805), 545 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:16,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 811 transitions. [2024-11-16 10:51:16,154 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 811 transitions. Word has length 156 [2024-11-16 10:51:16,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:16,155 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 811 transitions. [2024-11-16 10:51:16,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:16,155 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 811 transitions. [2024-11-16 10:51:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 10:51:16,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:16,157 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:16,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 10:51:16,157 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:16,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:16,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1383970426, now seen corresponding path program 1 times [2024-11-16 10:51:16,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:16,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362136235] [2024-11-16 10:51:16,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:16,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:16,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:16,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:16,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:16,544 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:16,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:16,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362136235] [2024-11-16 10:51:16,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362136235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:16,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:16,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:16,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192678807] [2024-11-16 10:51:16,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:16,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:16,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:16,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:16,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:16,546 INFO L87 Difference]: Start difference. First operand 550 states and 811 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:16,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:16,898 INFO L93 Difference]: Finished difference Result 998 states and 1470 transitions. [2024-11-16 10:51:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:16,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 157 [2024-11-16 10:51:16,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:16,902 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:51:16,903 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:51:16,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:16,905 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1454 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:16,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 1240 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:16,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:51:16,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:51:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4752293577981652) internal successors, (804), 545 states have internal predecessors, (804), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:16,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 810 transitions. [2024-11-16 10:51:16,918 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 810 transitions. Word has length 157 [2024-11-16 10:51:16,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:16,919 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 810 transitions. [2024-11-16 10:51:16,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:16,919 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 810 transitions. [2024-11-16 10:51:16,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 10:51:16,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:16,921 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:16,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 10:51:16,921 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:16,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:16,922 INFO L85 PathProgramCache]: Analyzing trace with hash 51978461, now seen corresponding path program 1 times [2024-11-16 10:51:16,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:16,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896267386] [2024-11-16 10:51:16,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:16,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:17,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:17,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896267386] [2024-11-16 10:51:17,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896267386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:17,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:17,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:17,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147841347] [2024-11-16 10:51:17,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:17,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:17,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:17,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:17,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:17,620 INFO L87 Difference]: Start difference. First operand 550 states and 810 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:17,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:17,904 INFO L93 Difference]: Finished difference Result 555 states and 815 transitions. [2024-11-16 10:51:17,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:17,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 158 [2024-11-16 10:51:17,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:17,908 INFO L225 Difference]: With dead ends: 555 [2024-11-16 10:51:17,908 INFO L226 Difference]: Without dead ends: 552 [2024-11-16 10:51:17,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:17,909 INFO L432 NwaCegarLoop]: 675 mSDtfsCounter, 0 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:17,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2020 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-16 10:51:17,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-16 10:51:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4734917733089579) internal successors, (806), 547 states have internal predecessors, (806), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:17,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 812 transitions. [2024-11-16 10:51:17,923 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 812 transitions. Word has length 158 [2024-11-16 10:51:17,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:17,923 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 812 transitions. [2024-11-16 10:51:17,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:17,924 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 812 transitions. [2024-11-16 10:51:17,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 10:51:17,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:17,926 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:17,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 10:51:17,926 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:17,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:17,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1756386158, now seen corresponding path program 1 times [2024-11-16 10:51:17,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:17,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89242019] [2024-11-16 10:51:17,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:17,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:18,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:18,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:18,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:18,537 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:18,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:18,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89242019] [2024-11-16 10:51:18,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89242019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:18,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:18,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:18,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421120534] [2024-11-16 10:51:18,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:18,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:18,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:18,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:18,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:18,540 INFO L87 Difference]: Start difference. First operand 552 states and 812 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:19,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:19,281 INFO L93 Difference]: Finished difference Result 1373 states and 2019 transitions. [2024-11-16 10:51:19,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:51:19,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 159 [2024-11-16 10:51:19,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:19,284 INFO L225 Difference]: With dead ends: 1373 [2024-11-16 10:51:19,285 INFO L226 Difference]: Without dead ends: 552 [2024-11-16 10:51:19,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:51:19,287 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1587 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:19,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 1947 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 10:51:19,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-16 10:51:19,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-16 10:51:19,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4716636197440585) internal successors, (805), 547 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:19,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 811 transitions. [2024-11-16 10:51:19,302 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 811 transitions. Word has length 159 [2024-11-16 10:51:19,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:19,302 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 811 transitions. [2024-11-16 10:51:19,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:19,303 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 811 transitions. [2024-11-16 10:51:19,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 10:51:19,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:19,304 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:19,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 10:51:19,305 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:19,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:19,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1622143185, now seen corresponding path program 1 times [2024-11-16 10:51:19,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:19,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140924336] [2024-11-16 10:51:19,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:19,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:19,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:19,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:19,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:19,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:19,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:19,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140924336] [2024-11-16 10:51:19,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140924336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:19,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:19,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:19,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115000009] [2024-11-16 10:51:19,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:19,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:19,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:19,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:19,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:19,784 INFO L87 Difference]: Start difference. First operand 552 states and 811 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:20,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:20,051 INFO L93 Difference]: Finished difference Result 1004 states and 1473 transitions. [2024-11-16 10:51:20,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:20,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 160 [2024-11-16 10:51:20,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:20,054 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:51:20,054 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:51:20,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:20,056 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 0 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:20,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2014 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:20,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:51:20,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:51:20,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.469945355191257) internal successors, (807), 549 states have internal predecessors, (807), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:20,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 813 transitions. [2024-11-16 10:51:20,068 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 813 transitions. Word has length 160 [2024-11-16 10:51:20,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:20,069 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 813 transitions. [2024-11-16 10:51:20,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:20,070 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 813 transitions. [2024-11-16 10:51:20,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 10:51:20,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:20,071 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:20,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 10:51:20,072 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:20,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:20,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1000412865, now seen corresponding path program 1 times [2024-11-16 10:51:20,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:20,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831835888] [2024-11-16 10:51:20,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:20,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:20,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:20,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:20,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:20,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:20,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831835888] [2024-11-16 10:51:20,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831835888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:20,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:20,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:20,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552569378] [2024-11-16 10:51:20,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:20,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:20,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:20,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:20,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:20,613 INFO L87 Difference]: Start difference. First operand 554 states and 813 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:20,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:20,932 INFO L93 Difference]: Finished difference Result 1006 states and 1474 transitions. [2024-11-16 10:51:20,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:20,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 161 [2024-11-16 10:51:20,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:20,935 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:51:20,936 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:51:20,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:20,937 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 695 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:20,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1286 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:20,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:51:20,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:51:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4681238615664844) internal successors, (806), 549 states have internal predecessors, (806), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:20,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 812 transitions. [2024-11-16 10:51:20,952 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 812 transitions. Word has length 161 [2024-11-16 10:51:20,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:20,952 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 812 transitions. [2024-11-16 10:51:20,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:20,953 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 812 transitions. [2024-11-16 10:51:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 10:51:20,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:20,955 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:20,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 10:51:20,955 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:20,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:20,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1310992352, now seen corresponding path program 1 times [2024-11-16 10:51:20,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:20,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636784112] [2024-11-16 10:51:20,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:20,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:21,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:21,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636784112] [2024-11-16 10:51:21,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636784112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:21,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:21,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:21,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870144727] [2024-11-16 10:51:21,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:21,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:21,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:21,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:21,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:21,346 INFO L87 Difference]: Start difference. First operand 554 states and 812 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:21,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:21,704 INFO L93 Difference]: Finished difference Result 1012 states and 1480 transitions. [2024-11-16 10:51:21,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:51:21,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 162 [2024-11-16 10:51:21,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:21,707 INFO L225 Difference]: With dead ends: 1012 [2024-11-16 10:51:21,707 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:51:21,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:51:21,709 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 706 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:21,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1980 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:21,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:51:21,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:51:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4663023679417122) internal successors, (805), 549 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:21,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 811 transitions. [2024-11-16 10:51:21,722 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 811 transitions. Word has length 162 [2024-11-16 10:51:21,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:21,722 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 811 transitions. [2024-11-16 10:51:21,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:21,723 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 811 transitions. [2024-11-16 10:51:21,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-16 10:51:21,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:21,725 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:21,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 10:51:21,725 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:21,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:21,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1066656432, now seen corresponding path program 1 times [2024-11-16 10:51:21,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:21,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114263054] [2024-11-16 10:51:21,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:21,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,077 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:22,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:22,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114263054] [2024-11-16 10:51:22,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114263054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:22,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:22,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:22,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653653984] [2024-11-16 10:51:22,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:22,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:22,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:22,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:22,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:22,080 INFO L87 Difference]: Start difference. First operand 554 states and 811 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:22,397 INFO L93 Difference]: Finished difference Result 1006 states and 1470 transitions. [2024-11-16 10:51:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:22,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 163 [2024-11-16 10:51:22,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:22,400 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:51:22,400 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:51:22,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:22,402 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 1489 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:22,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1286 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:51:22,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:51:22,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.46448087431694) internal successors, (804), 549 states have internal predecessors, (804), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:22,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 810 transitions. [2024-11-16 10:51:22,415 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 810 transitions. Word has length 163 [2024-11-16 10:51:22,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:22,415 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 810 transitions. [2024-11-16 10:51:22,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:22,416 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 810 transitions. [2024-11-16 10:51:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 10:51:22,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:22,417 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:22,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 10:51:22,418 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:22,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:22,418 INFO L85 PathProgramCache]: Analyzing trace with hash -304199045, now seen corresponding path program 1 times [2024-11-16 10:51:22,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:22,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074893918] [2024-11-16 10:51:22,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:22,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:22,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:22,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074893918] [2024-11-16 10:51:22,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074893918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:22,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:22,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:22,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748891709] [2024-11-16 10:51:22,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:22,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:22,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:22,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:22,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:22,831 INFO L87 Difference]: Start difference. First operand 554 states and 810 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:23,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:23,150 INFO L93 Difference]: Finished difference Result 1006 states and 1468 transitions. [2024-11-16 10:51:23,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:23,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 164 [2024-11-16 10:51:23,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:23,154 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:51:23,154 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:51:23,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:23,156 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 1481 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:23,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1286 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:23,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:51:23,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:51:23,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4626593806921675) internal successors, (803), 549 states have internal predecessors, (803), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:23,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 809 transitions. [2024-11-16 10:51:23,169 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 809 transitions. Word has length 164 [2024-11-16 10:51:23,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:23,169 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 809 transitions. [2024-11-16 10:51:23,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:23,170 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 809 transitions. [2024-11-16 10:51:23,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 10:51:23,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:23,171 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:23,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 10:51:23,172 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:23,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash 98101707, now seen corresponding path program 1 times [2024-11-16 10:51:23,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:23,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966411410] [2024-11-16 10:51:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:23,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:23,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966411410] [2024-11-16 10:51:23,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966411410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:23,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:23,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:23,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171097324] [2024-11-16 10:51:23,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:23,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:23,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:23,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:23,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:23,701 INFO L87 Difference]: Start difference. First operand 554 states and 809 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:23,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:23,983 INFO L93 Difference]: Finished difference Result 1005 states and 1465 transitions. [2024-11-16 10:51:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:23,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 165 [2024-11-16 10:51:23,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:23,986 INFO L225 Difference]: With dead ends: 1005 [2024-11-16 10:51:23,986 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:51:23,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:23,988 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 696 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:23,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1310 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:23,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:51:24,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:51:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4598540145985401) internal successors, (800), 548 states have internal predecessors, (800), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 806 transitions. [2024-11-16 10:51:24,008 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 806 transitions. Word has length 165 [2024-11-16 10:51:24,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:24,008 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 806 transitions. [2024-11-16 10:51:24,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:24,009 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 806 transitions. [2024-11-16 10:51:24,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 10:51:24,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:24,011 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:24,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 10:51:24,011 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:24,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:24,012 INFO L85 PathProgramCache]: Analyzing trace with hash 724410902, now seen corresponding path program 1 times [2024-11-16 10:51:24,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:24,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149094570] [2024-11-16 10:51:24,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:24,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:24,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:24,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:24,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:24,510 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:24,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:24,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149094570] [2024-11-16 10:51:24,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149094570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:24,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:24,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:24,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063563013] [2024-11-16 10:51:24,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:24,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:24,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:24,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:24,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:24,513 INFO L87 Difference]: Start difference. First operand 553 states and 806 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:24,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:24,828 INFO L93 Difference]: Finished difference Result 1006 states and 1462 transitions. [2024-11-16 10:51:24,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:51:24,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 166 [2024-11-16 10:51:24,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:24,832 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:51:24,832 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:51:24,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:51:24,834 INFO L432 NwaCegarLoop]: 664 mSDtfsCounter, 700 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:24,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1986 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:51:24,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:51:24,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4580291970802919) internal successors, (799), 548 states have internal predecessors, (799), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:24,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 805 transitions. [2024-11-16 10:51:24,846 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 805 transitions. Word has length 166 [2024-11-16 10:51:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:24,846 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 805 transitions. [2024-11-16 10:51:24,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:24,847 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 805 transitions. [2024-11-16 10:51:24,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-16 10:51:24,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:24,848 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:24,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 10:51:24,849 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:24,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:24,849 INFO L85 PathProgramCache]: Analyzing trace with hash 313438672, now seen corresponding path program 1 times [2024-11-16 10:51:24,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:24,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403300123] [2024-11-16 10:51:24,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:24,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:25,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:25,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:51:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:25,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:51:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:25,318 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:25,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:25,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403300123] [2024-11-16 10:51:25,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403300123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:25,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:25,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:25,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073421433] [2024-11-16 10:51:25,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:25,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:25,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:25,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:25,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:25,321 INFO L87 Difference]: Start difference. First operand 553 states and 805 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:51:25,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:25,633 INFO L93 Difference]: Finished difference Result 1004 states and 1458 transitions. [2024-11-16 10:51:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:25,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 167 [2024-11-16 10:51:25,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:25,636 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:51:25,636 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:51:25,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:25,637 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 734 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:25,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1314 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:25,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:51:25,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:51:25,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4562043795620438) internal successors, (798), 548 states have internal predecessors, (798), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:25,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 804 transitions. [2024-11-16 10:51:25,650 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 804 transitions. Word has length 167 [2024-11-16 10:51:25,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:25,650 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 804 transitions. [2024-11-16 10:51:25,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:51:25,651 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 804 transitions. [2024-11-16 10:51:25,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-16 10:51:25,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:25,652 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:25,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 10:51:25,653 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:25,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:25,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2140638889, now seen corresponding path program 1 times [2024-11-16 10:51:25,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:25,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409788172] [2024-11-16 10:51:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:25,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 10:51:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 10:51:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,140 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:26,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:26,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409788172] [2024-11-16 10:51:26,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409788172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:26,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:26,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:26,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458355807] [2024-11-16 10:51:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:26,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:26,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:26,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:26,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:26,145 INFO L87 Difference]: Start difference. First operand 553 states and 804 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:51:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:26,443 INFO L93 Difference]: Finished difference Result 1004 states and 1456 transitions. [2024-11-16 10:51:26,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:26,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 168 [2024-11-16 10:51:26,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:26,446 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:51:26,446 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:51:26,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:26,447 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 732 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:26,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1314 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:26,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:51:26,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:51:26,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4543795620437956) internal successors, (797), 548 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:26,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 803 transitions. [2024-11-16 10:51:26,460 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 803 transitions. Word has length 168 [2024-11-16 10:51:26,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:26,460 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 803 transitions. [2024-11-16 10:51:26,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:51:26,461 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 803 transitions. [2024-11-16 10:51:26,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-16 10:51:26,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:26,462 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:26,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 10:51:26,463 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:26,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:26,463 INFO L85 PathProgramCache]: Analyzing trace with hash 861571911, now seen corresponding path program 1 times [2024-11-16 10:51:26,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:26,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636695181] [2024-11-16 10:51:26,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:26,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:27,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:27,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:27,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:27,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:27,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:27,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636695181] [2024-11-16 10:51:27,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636695181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:27,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:27,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:27,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371196471] [2024-11-16 10:51:27,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:27,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:27,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:27,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:27,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:27,276 INFO L87 Difference]: Start difference. First operand 553 states and 803 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:27,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:27,788 INFO L93 Difference]: Finished difference Result 1010 states and 1462 transitions. [2024-11-16 10:51:27,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:51:27,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 169 [2024-11-16 10:51:27,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:27,792 INFO L225 Difference]: With dead ends: 1010 [2024-11-16 10:51:27,792 INFO L226 Difference]: Without dead ends: 557 [2024-11-16 10:51:27,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:27,794 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 2 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:27,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2493 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:51:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-16 10:51:27,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 555. [2024-11-16 10:51:27,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4527272727272726) internal successors, (799), 550 states have internal predecessors, (799), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:27,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 805 transitions. [2024-11-16 10:51:27,809 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 805 transitions. Word has length 169 [2024-11-16 10:51:27,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:27,809 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 805 transitions. [2024-11-16 10:51:27,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:27,810 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 805 transitions. [2024-11-16 10:51:27,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-16 10:51:27,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:27,812 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:27,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 10:51:27,813 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:27,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:27,814 INFO L85 PathProgramCache]: Analyzing trace with hash 669442271, now seen corresponding path program 1 times [2024-11-16 10:51:27,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:27,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162905677] [2024-11-16 10:51:27,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:27,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,397 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:28,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:28,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162905677] [2024-11-16 10:51:28,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162905677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:28,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:28,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:28,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330340284] [2024-11-16 10:51:28,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:28,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:28,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:28,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:28,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:28,401 INFO L87 Difference]: Start difference. First operand 555 states and 805 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:28,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:28,814 INFO L93 Difference]: Finished difference Result 1008 states and 1458 transitions. [2024-11-16 10:51:28,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:28,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 170 [2024-11-16 10:51:28,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:28,818 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:28,818 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:28,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:28,819 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 675 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:28,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1220 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:51:28,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:28,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:28,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.450909090909091) internal successors, (798), 550 states have internal predecessors, (798), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:28,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 804 transitions. [2024-11-16 10:51:28,834 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 804 transitions. Word has length 170 [2024-11-16 10:51:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:28,835 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 804 transitions. [2024-11-16 10:51:28,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:28,835 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 804 transitions. [2024-11-16 10:51:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-16 10:51:28,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:28,837 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:28,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 10:51:28,837 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:28,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:28,838 INFO L85 PathProgramCache]: Analyzing trace with hash 699370503, now seen corresponding path program 1 times [2024-11-16 10:51:28,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:28,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461352872] [2024-11-16 10:51:28,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:28,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:29,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:29,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:29,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:29,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:29,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461352872] [2024-11-16 10:51:29,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461352872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:29,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:29,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:29,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391549909] [2024-11-16 10:51:29,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:29,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:29,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:29,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:29,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:29,350 INFO L87 Difference]: Start difference. First operand 555 states and 804 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:29,747 INFO L93 Difference]: Finished difference Result 1008 states and 1456 transitions. [2024-11-16 10:51:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:29,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 171 [2024-11-16 10:51:29,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:29,750 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:29,751 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:29,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:29,752 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 671 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:29,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1227 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:51:29,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:29,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.449090909090909) internal successors, (797), 550 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:29,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 803 transitions. [2024-11-16 10:51:29,765 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 803 transitions. Word has length 171 [2024-11-16 10:51:29,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:29,766 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 803 transitions. [2024-11-16 10:51:29,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:29,766 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 803 transitions. [2024-11-16 10:51:29,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 10:51:29,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:29,768 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:29,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 10:51:29,768 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:29,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:29,769 INFO L85 PathProgramCache]: Analyzing trace with hash 434632465, now seen corresponding path program 1 times [2024-11-16 10:51:29,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:29,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079858868] [2024-11-16 10:51:29,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:30,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:30,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:30,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:30,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079858868] [2024-11-16 10:51:30,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079858868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:30,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:30,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:30,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393406710] [2024-11-16 10:51:30,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:30,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:30,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:30,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:30,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:30,385 INFO L87 Difference]: Start difference. First operand 555 states and 803 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:30,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:30,801 INFO L93 Difference]: Finished difference Result 1008 states and 1454 transitions. [2024-11-16 10:51:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:30,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 172 [2024-11-16 10:51:30,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:30,804 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:30,804 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:30,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:30,806 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 670 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:30,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1227 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:51:30,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:30,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4472727272727273) internal successors, (796), 550 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:30,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 802 transitions. [2024-11-16 10:51:30,823 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 802 transitions. Word has length 172 [2024-11-16 10:51:30,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:30,824 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 802 transitions. [2024-11-16 10:51:30,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:30,825 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 802 transitions. [2024-11-16 10:51:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 10:51:30,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:30,827 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:30,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 10:51:30,827 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:30,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:30,828 INFO L85 PathProgramCache]: Analyzing trace with hash -296289502, now seen corresponding path program 1 times [2024-11-16 10:51:30,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:30,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205775834] [2024-11-16 10:51:30,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:30,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:31,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:31,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:31,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:31,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:31,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205775834] [2024-11-16 10:51:31,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205775834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:31,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:31,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:31,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970231371] [2024-11-16 10:51:31,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:31,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:31,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:31,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:31,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:31,369 INFO L87 Difference]: Start difference. First operand 555 states and 802 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:31,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:31,758 INFO L93 Difference]: Finished difference Result 1008 states and 1452 transitions. [2024-11-16 10:51:31,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:31,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 173 [2024-11-16 10:51:31,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:31,760 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:31,761 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:31,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:31,762 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1326 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:31,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 1220 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:31,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:31,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:31,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4454545454545455) internal successors, (795), 550 states have internal predecessors, (795), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:31,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 801 transitions. [2024-11-16 10:51:31,774 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 801 transitions. Word has length 173 [2024-11-16 10:51:31,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:31,775 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 801 transitions. [2024-11-16 10:51:31,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 801 transitions. [2024-11-16 10:51:31,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-16 10:51:31,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:31,777 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:31,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 10:51:31,777 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:31,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:31,778 INFO L85 PathProgramCache]: Analyzing trace with hash 208925489, now seen corresponding path program 1 times [2024-11-16 10:51:31,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:31,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062579852] [2024-11-16 10:51:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:31,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:32,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:32,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:32,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:32,297 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:32,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:32,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062579852] [2024-11-16 10:51:32,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062579852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:32,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:32,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:32,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568154514] [2024-11-16 10:51:32,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:32,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:32,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:32,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:32,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:32,302 INFO L87 Difference]: Start difference. First operand 555 states and 801 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:32,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:32,616 INFO L93 Difference]: Finished difference Result 1008 states and 1450 transitions. [2024-11-16 10:51:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:32,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 174 [2024-11-16 10:51:32,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:32,619 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:32,619 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:32,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:32,620 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 653 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:32,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1220 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:32,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:32,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4436363636363636) internal successors, (794), 550 states have internal predecessors, (794), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 800 transitions. [2024-11-16 10:51:32,632 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 800 transitions. Word has length 174 [2024-11-16 10:51:32,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:32,632 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 800 transitions. [2024-11-16 10:51:32,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 800 transitions. [2024-11-16 10:51:32,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 10:51:32,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:32,634 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:32,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 10:51:32,634 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:32,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:32,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1055962433, now seen corresponding path program 1 times [2024-11-16 10:51:32,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:32,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542012823] [2024-11-16 10:51:32,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:32,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:33,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:33,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:33,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:33,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:33,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542012823] [2024-11-16 10:51:33,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542012823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:33,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:33,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:33,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113685344] [2024-11-16 10:51:33,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:33,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:33,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:33,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:33,154 INFO L87 Difference]: Start difference. First operand 555 states and 800 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:33,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:33,517 INFO L93 Difference]: Finished difference Result 1008 states and 1448 transitions. [2024-11-16 10:51:33,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:33,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 175 [2024-11-16 10:51:33,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:33,520 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:33,520 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:33,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:33,521 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1314 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:33,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1220 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:33,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:33,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4418181818181819) internal successors, (793), 550 states have internal predecessors, (793), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:33,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 799 transitions. [2024-11-16 10:51:33,533 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 799 transitions. Word has length 175 [2024-11-16 10:51:33,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:33,533 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 799 transitions. [2024-11-16 10:51:33,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:33,534 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 799 transitions. [2024-11-16 10:51:33,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 10:51:33,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:33,535 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:33,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 10:51:33,535 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:33,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:33,536 INFO L85 PathProgramCache]: Analyzing trace with hash -318887595, now seen corresponding path program 1 times [2024-11-16 10:51:33,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:33,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529362043] [2024-11-16 10:51:33,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:33,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:34,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:34,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:34,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:34,048 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:34,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:34,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529362043] [2024-11-16 10:51:34,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529362043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:34,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:34,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:34,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71334318] [2024-11-16 10:51:34,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:34,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:34,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:34,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:34,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:34,051 INFO L87 Difference]: Start difference. First operand 555 states and 799 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:34,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:34,420 INFO L93 Difference]: Finished difference Result 1008 states and 1446 transitions. [2024-11-16 10:51:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:34,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 176 [2024-11-16 10:51:34,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:34,423 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:34,424 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:34,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:34,425 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1308 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:34,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1220 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:34,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:34,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:34,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.44) internal successors, (792), 550 states have internal predecessors, (792), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:34,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 798 transitions. [2024-11-16 10:51:34,437 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 798 transitions. Word has length 176 [2024-11-16 10:51:34,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:34,438 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 798 transitions. [2024-11-16 10:51:34,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:34,438 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 798 transitions. [2024-11-16 10:51:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 10:51:34,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:34,439 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:34,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 10:51:34,440 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:34,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:34,440 INFO L85 PathProgramCache]: Analyzing trace with hash -440231902, now seen corresponding path program 1 times [2024-11-16 10:51:34,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:34,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532630665] [2024-11-16 10:51:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:34,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:34,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:34,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:34,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:34,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:34,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532630665] [2024-11-16 10:51:34,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532630665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:34,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:34,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:34,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114113205] [2024-11-16 10:51:34,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:34,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:34,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:34,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:34,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:34,885 INFO L87 Difference]: Start difference. First operand 555 states and 798 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:35,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:35,127 INFO L93 Difference]: Finished difference Result 1008 states and 1444 transitions. [2024-11-16 10:51:35,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:35,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 177 [2024-11-16 10:51:35,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:35,130 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:35,130 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:35,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:35,136 INFO L432 NwaCegarLoop]: 645 mSDtfsCounter, 684 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:35,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 1292 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:35,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:35,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4381818181818182) internal successors, (791), 550 states have internal predecessors, (791), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:35,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 797 transitions. [2024-11-16 10:51:35,151 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 797 transitions. Word has length 177 [2024-11-16 10:51:35,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:35,151 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 797 transitions. [2024-11-16 10:51:35,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:35,151 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 797 transitions. [2024-11-16 10:51:35,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 10:51:35,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:35,153 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:35,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 10:51:35,154 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:35,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:35,154 INFO L85 PathProgramCache]: Analyzing trace with hash -881471005, now seen corresponding path program 1 times [2024-11-16 10:51:35,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:35,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701815667] [2024-11-16 10:51:35,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:35,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:35,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:35,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:35,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:35,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:35,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:35,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701815667] [2024-11-16 10:51:35,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701815667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:35,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:35,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:35,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423600184] [2024-11-16 10:51:35,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:35,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:35,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:35,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:35,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:35,644 INFO L87 Difference]: Start difference. First operand 555 states and 797 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:35,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:35,989 INFO L93 Difference]: Finished difference Result 1008 states and 1442 transitions. [2024-11-16 10:51:35,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:35,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 178 [2024-11-16 10:51:35,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:35,993 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:35,993 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:35,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:35,995 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 676 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:35,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 1260 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:35,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:36,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4363636363636363) internal successors, (790), 550 states have internal predecessors, (790), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:36,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 796 transitions. [2024-11-16 10:51:36,007 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 796 transitions. Word has length 178 [2024-11-16 10:51:36,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:36,008 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 796 transitions. [2024-11-16 10:51:36,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:36,008 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 796 transitions. [2024-11-16 10:51:36,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 10:51:36,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:36,009 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:36,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 10:51:36,010 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:36,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:36,010 INFO L85 PathProgramCache]: Analyzing trace with hash 634038681, now seen corresponding path program 1 times [2024-11-16 10:51:36,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:36,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546139089] [2024-11-16 10:51:36,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:36,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:36,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:36,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:36,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:36,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:36,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546139089] [2024-11-16 10:51:36,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546139089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:36,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:36,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:36,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687571800] [2024-11-16 10:51:36,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:36,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:36,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:36,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:36,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:36,516 INFO L87 Difference]: Start difference. First operand 555 states and 796 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:36,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:36,858 INFO L93 Difference]: Finished difference Result 1008 states and 1440 transitions. [2024-11-16 10:51:36,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:36,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 179 [2024-11-16 10:51:36,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:36,861 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:36,861 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:36,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:36,862 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 674 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:36,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1267 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:36,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:36,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:36,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4345454545454546) internal successors, (789), 550 states have internal predecessors, (789), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:36,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 795 transitions. [2024-11-16 10:51:36,877 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 795 transitions. Word has length 179 [2024-11-16 10:51:36,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:36,878 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 795 transitions. [2024-11-16 10:51:36,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:36,878 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 795 transitions. [2024-11-16 10:51:36,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-16 10:51:36,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:36,879 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:36,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 10:51:36,880 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:36,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:36,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1661520297, now seen corresponding path program 1 times [2024-11-16 10:51:36,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:36,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602755349] [2024-11-16 10:51:36,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:36,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:37,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:37,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:37,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:37,316 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:37,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:37,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602755349] [2024-11-16 10:51:37,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602755349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:37,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:37,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:37,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454302240] [2024-11-16 10:51:37,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:37,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:37,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:37,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:37,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:37,319 INFO L87 Difference]: Start difference. First operand 555 states and 795 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:37,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:37,659 INFO L93 Difference]: Finished difference Result 1008 states and 1438 transitions. [2024-11-16 10:51:37,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:37,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 180 [2024-11-16 10:51:37,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:37,662 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:51:37,662 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:51:37,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:37,664 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 673 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:37,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1267 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:37,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:51:37,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:51:37,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4327272727272726) internal successors, (788), 550 states have internal predecessors, (788), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:51:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 794 transitions. [2024-11-16 10:51:37,679 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 794 transitions. Word has length 180 [2024-11-16 10:51:37,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:37,680 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 794 transitions. [2024-11-16 10:51:37,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:37,680 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 794 transitions. [2024-11-16 10:51:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-16 10:51:37,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:37,681 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:37,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 10:51:37,682 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:37,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:37,682 INFO L85 PathProgramCache]: Analyzing trace with hash -762192146, now seen corresponding path program 1 times [2024-11-16 10:51:37,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:37,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741433695] [2024-11-16 10:51:37,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:37,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:38,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:38,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:38,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:38,742 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:51:38,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:38,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741433695] [2024-11-16 10:51:38,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741433695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:38,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:38,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:51:38,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372397792] [2024-11-16 10:51:38,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:38,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:51:38,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:38,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:51:38,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:51:38,746 INFO L87 Difference]: Start difference. First operand 555 states and 794 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:39,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:39,311 INFO L93 Difference]: Finished difference Result 1161 states and 1636 transitions. [2024-11-16 10:51:39,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:51:39,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 181 [2024-11-16 10:51:39,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:39,314 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:39,315 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:39,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-16 10:51:39,316 INFO L432 NwaCegarLoop]: 644 mSDtfsCounter, 1132 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:39,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 3210 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:51:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:39,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:39,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.4014285714285715) internal successors, (981), 700 states have internal predecessors, (981), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:39,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 993 transitions. [2024-11-16 10:51:39,337 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 993 transitions. Word has length 181 [2024-11-16 10:51:39,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:39,337 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 993 transitions. [2024-11-16 10:51:39,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:39,338 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 993 transitions. [2024-11-16 10:51:39,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-11-16 10:51:39,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:39,340 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:39,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 10:51:39,341 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:39,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:39,341 INFO L85 PathProgramCache]: Analyzing trace with hash -489649095, now seen corresponding path program 1 times [2024-11-16 10:51:39,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:39,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607012258] [2024-11-16 10:51:39,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:39,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:40,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:40,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:40,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:40,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-11-16 10:51:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:40,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-11-16 10:51:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:40,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-11-16 10:51:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:40,862 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:40,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:40,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607012258] [2024-11-16 10:51:40,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607012258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:40,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:40,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:40,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35158614] [2024-11-16 10:51:40,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:40,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:40,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:40,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:40,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:40,864 INFO L87 Difference]: Start difference. First operand 708 states and 993 transitions. Second operand has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:41,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:41,204 INFO L93 Difference]: Finished difference Result 1161 states and 1635 transitions. [2024-11-16 10:51:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:41,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 447 [2024-11-16 10:51:41,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:41,207 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:41,208 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:41,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:41,209 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 1326 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:41,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 1212 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:41,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:41,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:41,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.4) internal successors, (980), 700 states have internal predecessors, (980), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:41,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 992 transitions. [2024-11-16 10:51:41,228 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 992 transitions. Word has length 447 [2024-11-16 10:51:41,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:41,228 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 992 transitions. [2024-11-16 10:51:41,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:41,229 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 992 transitions. [2024-11-16 10:51:41,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-16 10:51:41,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:41,232 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:41,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 10:51:41,232 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:41,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:41,233 INFO L85 PathProgramCache]: Analyzing trace with hash -251885899, now seen corresponding path program 1 times [2024-11-16 10:51:41,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:41,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477763112] [2024-11-16 10:51:41,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:41,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:42,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:42,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:42,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:42,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-11-16 10:51:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:42,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-16 10:51:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:42,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-16 10:51:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:42,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:42,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477763112] [2024-11-16 10:51:42,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477763112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:42,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:42,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:42,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778080015] [2024-11-16 10:51:42,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:42,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:42,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:42,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:42,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:42,498 INFO L87 Difference]: Start difference. First operand 708 states and 992 transitions. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:42,783 INFO L93 Difference]: Finished difference Result 1161 states and 1633 transitions. [2024-11-16 10:51:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:42,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 448 [2024-11-16 10:51:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:42,787 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:42,787 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:42,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:42,788 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 1310 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:42,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 1212 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:42,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:42,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:42,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3985714285714286) internal successors, (979), 700 states have internal predecessors, (979), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 991 transitions. [2024-11-16 10:51:42,804 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 991 transitions. Word has length 448 [2024-11-16 10:51:42,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:42,805 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 991 transitions. [2024-11-16 10:51:42,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:42,805 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 991 transitions. [2024-11-16 10:51:42,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-16 10:51:42,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:42,808 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:42,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 10:51:42,808 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:42,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:42,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1549793928, now seen corresponding path program 1 times [2024-11-16 10:51:42,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:42,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548033801] [2024-11-16 10:51:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:42,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:43,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:43,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:43,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:43,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-11-16 10:51:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:43,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-16 10:51:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:43,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-16 10:51:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:43,669 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:43,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:43,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548033801] [2024-11-16 10:51:43,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548033801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:43,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:43,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:43,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001327662] [2024-11-16 10:51:43,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:43,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:43,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:43,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:43,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:43,672 INFO L87 Difference]: Start difference. First operand 708 states and 991 transitions. Second operand has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:43,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:43,991 INFO L93 Difference]: Finished difference Result 1161 states and 1631 transitions. [2024-11-16 10:51:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:43,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 449 [2024-11-16 10:51:43,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:43,994 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:43,994 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:43,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:43,995 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 708 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:43,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1219 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:43,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:44,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:44,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3971428571428572) internal successors, (978), 700 states have internal predecessors, (978), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:44,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 990 transitions. [2024-11-16 10:51:44,012 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 990 transitions. Word has length 449 [2024-11-16 10:51:44,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:44,012 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 990 transitions. [2024-11-16 10:51:44,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:44,013 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 990 transitions. [2024-11-16 10:51:44,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-11-16 10:51:44,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:44,015 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:44,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 10:51:44,016 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:44,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:44,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1819420452, now seen corresponding path program 1 times [2024-11-16 10:51:44,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:44,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741921604] [2024-11-16 10:51:44,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:44,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:44,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:44,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:44,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:44,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-11-16 10:51:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:44,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-16 10:51:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:44,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-16 10:51:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:44,976 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:44,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:44,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741921604] [2024-11-16 10:51:44,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741921604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:44,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:44,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:44,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840738234] [2024-11-16 10:51:44,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:44,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:44,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:44,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:44,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:44,979 INFO L87 Difference]: Start difference. First operand 708 states and 990 transitions. Second operand has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:45,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:45,264 INFO L93 Difference]: Finished difference Result 1161 states and 1629 transitions. [2024-11-16 10:51:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:45,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 450 [2024-11-16 10:51:45,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:45,267 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:45,267 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:45,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:45,269 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 1278 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:45,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 1212 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:45,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3957142857142857) internal successors, (977), 700 states have internal predecessors, (977), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:45,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 989 transitions. [2024-11-16 10:51:45,289 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 989 transitions. Word has length 450 [2024-11-16 10:51:45,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:45,289 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 989 transitions. [2024-11-16 10:51:45,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:45,290 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 989 transitions. [2024-11-16 10:51:45,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-11-16 10:51:45,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:45,294 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:45,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-16 10:51:45,295 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:45,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:45,295 INFO L85 PathProgramCache]: Analyzing trace with hash -213243049, now seen corresponding path program 1 times [2024-11-16 10:51:45,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:45,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013282638] [2024-11-16 10:51:45,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:45,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:46,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:46,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:46,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:46,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-11-16 10:51:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:46,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-16 10:51:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:46,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-16 10:51:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:46,102 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:46,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:46,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013282638] [2024-11-16 10:51:46,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013282638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:46,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:46,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:46,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433313461] [2024-11-16 10:51:46,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:46,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:46,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:46,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:46,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:46,104 INFO L87 Difference]: Start difference. First operand 708 states and 989 transitions. Second operand has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:46,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:46,422 INFO L93 Difference]: Finished difference Result 1161 states and 1627 transitions. [2024-11-16 10:51:46,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:46,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 451 [2024-11-16 10:51:46,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:46,426 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:46,426 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:46,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:46,427 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 692 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:46,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1219 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:46,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:46,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:46,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3942857142857144) internal successors, (976), 700 states have internal predecessors, (976), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:46,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 988 transitions. [2024-11-16 10:51:46,443 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 988 transitions. Word has length 451 [2024-11-16 10:51:46,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:46,444 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 988 transitions. [2024-11-16 10:51:46,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:46,444 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 988 transitions. [2024-11-16 10:51:46,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-16 10:51:46,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:46,447 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:46,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-16 10:51:46,448 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:46,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:46,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1710174739, now seen corresponding path program 1 times [2024-11-16 10:51:46,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:46,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837915036] [2024-11-16 10:51:46,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:46,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:47,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:47,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:47,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:47,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-11-16 10:51:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:47,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-11-16 10:51:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:47,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-16 10:51:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:47,395 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:47,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:47,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837915036] [2024-11-16 10:51:47,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837915036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:47,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:47,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:47,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149314974] [2024-11-16 10:51:47,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:47,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:47,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:47,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:47,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:47,399 INFO L87 Difference]: Start difference. First operand 708 states and 988 transitions. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:47,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:47,715 INFO L93 Difference]: Finished difference Result 1161 states and 1625 transitions. [2024-11-16 10:51:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:47,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 452 [2024-11-16 10:51:47,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:47,719 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:47,719 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:47,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:47,720 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 684 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:47,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1219 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:47,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:47,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:47,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3928571428571428) internal successors, (975), 700 states have internal predecessors, (975), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:47,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 987 transitions. [2024-11-16 10:51:47,742 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 987 transitions. Word has length 452 [2024-11-16 10:51:47,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:47,743 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 987 transitions. [2024-11-16 10:51:47,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:47,743 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 987 transitions. [2024-11-16 10:51:47,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-16 10:51:47,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:47,746 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:47,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-16 10:51:47,746 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:47,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:47,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1928470874, now seen corresponding path program 1 times [2024-11-16 10:51:47,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:47,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410904355] [2024-11-16 10:51:47,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:47,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:48,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:48,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:48,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:48,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-11-16 10:51:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:48,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-11-16 10:51:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:48,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-16 10:51:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:48,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:48,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410904355] [2024-11-16 10:51:48,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410904355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:48,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:48,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:48,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015116099] [2024-11-16 10:51:48,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:48,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:48,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:48,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:48,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:48,515 INFO L87 Difference]: Start difference. First operand 708 states and 987 transitions. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:48,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:48,782 INFO L93 Difference]: Finished difference Result 1161 states and 1623 transitions. [2024-11-16 10:51:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:48,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 453 [2024-11-16 10:51:48,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:48,785 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:48,785 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:48,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:48,786 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 676 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:48,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 1219 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:48,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3914285714285715) internal successors, (974), 700 states have internal predecessors, (974), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:48,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 986 transitions. [2024-11-16 10:51:48,812 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 986 transitions. Word has length 453 [2024-11-16 10:51:48,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:48,813 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 986 transitions. [2024-11-16 10:51:48,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 986 transitions. [2024-11-16 10:51:48,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-16 10:51:48,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:48,816 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:48,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-16 10:51:48,816 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:48,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:48,817 INFO L85 PathProgramCache]: Analyzing trace with hash -370120830, now seen corresponding path program 1 times [2024-11-16 10:51:48,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:48,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433973256] [2024-11-16 10:51:48,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:48,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:49,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:49,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:49,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:49,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-11-16 10:51:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:49,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-16 10:51:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:49,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-16 10:51:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:49,583 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:49,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:49,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433973256] [2024-11-16 10:51:49,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433973256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:49,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:49,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:49,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700011997] [2024-11-16 10:51:49,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:49,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:49,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:49,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:49,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:49,586 INFO L87 Difference]: Start difference. First operand 708 states and 986 transitions. Second operand has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:49,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:49,821 INFO L93 Difference]: Finished difference Result 1161 states and 1621 transitions. [2024-11-16 10:51:49,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:49,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 454 [2024-11-16 10:51:49,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:49,824 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:49,824 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:49,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:49,825 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 1214 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:49,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 1212 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:49,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:49,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.39) internal successors, (973), 700 states have internal predecessors, (973), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:49,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 985 transitions. [2024-11-16 10:51:49,841 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 985 transitions. Word has length 454 [2024-11-16 10:51:49,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:49,842 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 985 transitions. [2024-11-16 10:51:49,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:49,842 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 985 transitions. [2024-11-16 10:51:49,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-16 10:51:49,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:49,845 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:49,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-16 10:51:49,845 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:49,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:49,846 INFO L85 PathProgramCache]: Analyzing trace with hash 797561973, now seen corresponding path program 1 times [2024-11-16 10:51:49,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:49,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781538152] [2024-11-16 10:51:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:49,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:50,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:50,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:50,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:50,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-11-16 10:51:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:50,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-16 10:51:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:50,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-16 10:51:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:50,592 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:50,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:50,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781538152] [2024-11-16 10:51:50,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781538152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:50,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:50,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:50,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605396524] [2024-11-16 10:51:50,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:50,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:50,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:50,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:50,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:50,594 INFO L87 Difference]: Start difference. First operand 708 states and 985 transitions. Second operand has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:50,807 INFO L93 Difference]: Finished difference Result 1161 states and 1619 transitions. [2024-11-16 10:51:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:50,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 455 [2024-11-16 10:51:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:50,810 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:50,810 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:50,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:50,813 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 645 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:50,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1251 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:50,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:50,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3885714285714286) internal successors, (972), 700 states have internal predecessors, (972), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 984 transitions. [2024-11-16 10:51:50,832 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 984 transitions. Word has length 455 [2024-11-16 10:51:50,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:50,832 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 984 transitions. [2024-11-16 10:51:50,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:50,833 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 984 transitions. [2024-11-16 10:51:50,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-16 10:51:50,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:50,836 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:50,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-16 10:51:50,836 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:50,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:50,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1775404913, now seen corresponding path program 1 times [2024-11-16 10:51:50,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:50,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994604699] [2024-11-16 10:51:50,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:50,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:51,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:51,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:51,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:51,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-11-16 10:51:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:51,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-16 10:51:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:51,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-11-16 10:51:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:51,626 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:51,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:51,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994604699] [2024-11-16 10:51:51,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994604699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:51,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:51,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:51,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710638096] [2024-11-16 10:51:51,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:51,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:51,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:51,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:51,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:51,629 INFO L87 Difference]: Start difference. First operand 708 states and 984 transitions. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:51,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:51,875 INFO L93 Difference]: Finished difference Result 1161 states and 1617 transitions. [2024-11-16 10:51:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:51,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 456 [2024-11-16 10:51:51,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:51,878 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:51,878 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:51,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:51,879 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 637 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:51,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 1251 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:51,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:51,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3871428571428572) internal successors, (971), 700 states have internal predecessors, (971), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 983 transitions. [2024-11-16 10:51:51,894 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 983 transitions. Word has length 456 [2024-11-16 10:51:51,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:51,894 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 983 transitions. [2024-11-16 10:51:51,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:51,895 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 983 transitions. [2024-11-16 10:51:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-16 10:51:51,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:51,898 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:51,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-16 10:51:51,898 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:51,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:51,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2130916156, now seen corresponding path program 1 times [2024-11-16 10:51:51,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:51,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449641644] [2024-11-16 10:51:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:51,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:52,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:52,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:52,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:52,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-11-16 10:51:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:52,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-11-16 10:51:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:52,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-16 10:51:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:52,543 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:52,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:52,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449641644] [2024-11-16 10:51:52,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449641644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:52,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:52,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:52,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233718289] [2024-11-16 10:51:52,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:52,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:52,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:52,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:52,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:52,546 INFO L87 Difference]: Start difference. First operand 708 states and 983 transitions. Second operand has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:52,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:52,770 INFO L93 Difference]: Finished difference Result 1161 states and 1615 transitions. [2024-11-16 10:51:52,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:52,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 457 [2024-11-16 10:51:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:52,773 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:52,773 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:52,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:52,774 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 629 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:52,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1251 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:52,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:52,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3857142857142857) internal successors, (970), 700 states have internal predecessors, (970), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 982 transitions. [2024-11-16 10:51:52,803 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 982 transitions. Word has length 457 [2024-11-16 10:51:52,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:52,804 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 982 transitions. [2024-11-16 10:51:52,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:52,804 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 982 transitions. [2024-11-16 10:51:52,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-16 10:51:52,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:52,810 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:52,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-16 10:51:52,810 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:52,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:52,810 INFO L85 PathProgramCache]: Analyzing trace with hash 466768352, now seen corresponding path program 1 times [2024-11-16 10:51:52,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:52,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875778992] [2024-11-16 10:51:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:52,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:53,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:53,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:53,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:53,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-11-16 10:51:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:53,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-11-16 10:51:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:53,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-11-16 10:51:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:53,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:53,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875778992] [2024-11-16 10:51:53,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875778992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:53,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:53,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:53,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604182373] [2024-11-16 10:51:53,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:53,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:53,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:53,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:53,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:53,618 INFO L87 Difference]: Start difference. First operand 708 states and 982 transitions. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:53,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:53,836 INFO L93 Difference]: Finished difference Result 1161 states and 1613 transitions. [2024-11-16 10:51:53,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:53,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 458 [2024-11-16 10:51:53,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:53,839 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:53,839 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:53,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:53,840 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 1135 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:53,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 1244 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:53,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:53,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3842857142857143) internal successors, (969), 700 states have internal predecessors, (969), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:53,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 981 transitions. [2024-11-16 10:51:53,862 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 981 transitions. Word has length 458 [2024-11-16 10:51:53,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:53,862 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 981 transitions. [2024-11-16 10:51:53,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:53,863 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 981 transitions. [2024-11-16 10:51:53,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-16 10:51:53,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:53,869 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:53,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-16 10:51:53,869 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:53,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:53,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1208321939, now seen corresponding path program 1 times [2024-11-16 10:51:53,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:53,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494759281] [2024-11-16 10:51:53,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:53,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:54,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:54,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:54,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:54,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-11-16 10:51:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:54,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-11-16 10:51:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:54,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-11-16 10:51:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:54,568 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:54,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:54,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494759281] [2024-11-16 10:51:54,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494759281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:54,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:54,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:54,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622578028] [2024-11-16 10:51:54,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:54,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:54,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:54,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:54,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:54,570 INFO L87 Difference]: Start difference. First operand 708 states and 981 transitions. Second operand has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:54,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:54,776 INFO L93 Difference]: Finished difference Result 1161 states and 1611 transitions. [2024-11-16 10:51:54,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:54,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 459 [2024-11-16 10:51:54,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:54,778 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:54,779 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:54,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:54,780 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1112 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:54,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1262 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:54,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:54,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:54,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3828571428571428) internal successors, (968), 700 states have internal predecessors, (968), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 980 transitions. [2024-11-16 10:51:54,795 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 980 transitions. Word has length 459 [2024-11-16 10:51:54,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:54,796 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 980 transitions. [2024-11-16 10:51:54,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:54,796 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 980 transitions. [2024-11-16 10:51:54,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-16 10:51:54,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:54,799 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:54,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-16 10:51:54,799 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:54,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:54,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1527547599, now seen corresponding path program 1 times [2024-11-16 10:51:54,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:54,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195127914] [2024-11-16 10:51:54,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:54,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:55,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:55,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:55,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:55,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-11-16 10:51:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:55,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-16 10:51:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:55,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-16 10:51:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:55,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:55,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195127914] [2024-11-16 10:51:55,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195127914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:55,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:55,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:55,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106129661] [2024-11-16 10:51:55,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:55,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:55,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:55,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:55,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:55,517 INFO L87 Difference]: Start difference. First operand 708 states and 980 transitions. Second operand has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:55,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:55,705 INFO L93 Difference]: Finished difference Result 1161 states and 1609 transitions. [2024-11-16 10:51:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:55,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 460 [2024-11-16 10:51:55,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:55,708 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:55,708 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:55,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:55,709 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 598 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:55,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1269 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:55,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:55,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:55,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3814285714285715) internal successors, (967), 700 states have internal predecessors, (967), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:55,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 979 transitions. [2024-11-16 10:51:55,724 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 979 transitions. Word has length 460 [2024-11-16 10:51:55,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:55,725 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 979 transitions. [2024-11-16 10:51:55,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:55,725 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 979 transitions. [2024-11-16 10:51:55,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-16 10:51:55,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:55,728 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:55,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-16 10:51:55,728 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:55,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:55,729 INFO L85 PathProgramCache]: Analyzing trace with hash -341654302, now seen corresponding path program 1 times [2024-11-16 10:51:55,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:55,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935826906] [2024-11-16 10:51:55,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:55,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:56,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:56,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:56,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:56,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-11-16 10:51:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:56,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-16 10:51:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:56,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-11-16 10:51:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:56,475 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:56,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:56,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935826906] [2024-11-16 10:51:56,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935826906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:56,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:56,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:56,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816402487] [2024-11-16 10:51:56,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:56,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:56,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:56,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:56,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:56,477 INFO L87 Difference]: Start difference. First operand 708 states and 979 transitions. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:56,817 INFO L93 Difference]: Finished difference Result 1161 states and 1607 transitions. [2024-11-16 10:51:56,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:56,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 461 [2024-11-16 10:51:56,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:56,819 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:56,819 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:56,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:56,820 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 584 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:56,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 975 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:56,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:56,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:56,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.38) internal successors, (966), 700 states have internal predecessors, (966), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:56,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 978 transitions. [2024-11-16 10:51:56,835 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 978 transitions. Word has length 461 [2024-11-16 10:51:56,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:56,836 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 978 transitions. [2024-11-16 10:51:56,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:56,836 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 978 transitions. [2024-11-16 10:51:56,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-16 10:51:56,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:56,839 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:56,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-16 10:51:56,839 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:56,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:56,840 INFO L85 PathProgramCache]: Analyzing trace with hash 125691454, now seen corresponding path program 1 times [2024-11-16 10:51:56,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:56,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943412738] [2024-11-16 10:51:56,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:56,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:58,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:58,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:58,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:58,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-16 10:51:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:58,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-16 10:51:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:58,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-16 10:51:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:58,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:58,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943412738] [2024-11-16 10:51:58,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943412738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:58,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:58,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:58,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671570874] [2024-11-16 10:51:58,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:58,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:58,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:58,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:58,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:58,325 INFO L87 Difference]: Start difference. First operand 708 states and 978 transitions. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:58,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:58,504 INFO L93 Difference]: Finished difference Result 1161 states and 1605 transitions. [2024-11-16 10:51:58,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:58,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 462 [2024-11-16 10:51:58,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:58,506 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:51:58,507 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:51:58,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:58,508 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 497 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:58,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1260 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:58,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:51:58,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:51:58,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3785714285714286) internal successors, (965), 700 states have internal predecessors, (965), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:58,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 977 transitions. [2024-11-16 10:51:58,523 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 977 transitions. Word has length 462 [2024-11-16 10:51:58,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:58,523 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 977 transitions. [2024-11-16 10:51:58,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:58,524 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 977 transitions. [2024-11-16 10:51:58,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-16 10:51:58,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:58,526 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:58,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-16 10:51:58,527 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:58,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:58,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1093246591, now seen corresponding path program 1 times [2024-11-16 10:51:58,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:58,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971173935] [2024-11-16 10:51:58,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:58,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:59,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:51:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:59,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:51:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:59,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:51:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:59,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-11-16 10:51:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:00,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-16 10:52:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:00,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-11-16 10:52:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:00,004 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:52:00,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:52:00,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971173935] [2024-11-16 10:52:00,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971173935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:52:00,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:52:00,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:52:00,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829561755] [2024-11-16 10:52:00,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:52:00,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:52:00,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:52:00,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:52:00,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:52:00,007 INFO L87 Difference]: Start difference. First operand 708 states and 977 transitions. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:52:00,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:52:00,252 INFO L93 Difference]: Finished difference Result 1161 states and 1603 transitions. [2024-11-16 10:52:00,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:52:00,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 463 [2024-11-16 10:52:00,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:52:00,254 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:52:00,255 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:52:00,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:52:00,256 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 656 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:52:00,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1243 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:52:00,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:52:00,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:52:00,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3771428571428572) internal successors, (964), 700 states have internal predecessors, (964), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:52:00,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 976 transitions. [2024-11-16 10:52:00,281 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 976 transitions. Word has length 463 [2024-11-16 10:52:00,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:52:00,283 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 976 transitions. [2024-11-16 10:52:00,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:52:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 976 transitions. [2024-11-16 10:52:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-16 10:52:00,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:52:00,286 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:52:00,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-16 10:52:00,286 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:52:00,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:52:00,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2095288611, now seen corresponding path program 1 times [2024-11-16 10:52:00,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:52:00,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466287030] [2024-11-16 10:52:00,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:52:00,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:52:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:01,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:52:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:01,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:52:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:01,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:52:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:01,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-16 10:52:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:01,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-16 10:52:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:01,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-11-16 10:52:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:01,468 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:52:01,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:52:01,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466287030] [2024-11-16 10:52:01,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466287030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:52:01,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:52:01,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:52:01,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610497567] [2024-11-16 10:52:01,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:52:01,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:52:01,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:52:01,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:52:01,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:52:01,470 INFO L87 Difference]: Start difference. First operand 708 states and 976 transitions. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:52:01,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:52:01,712 INFO L93 Difference]: Finished difference Result 1161 states and 1601 transitions. [2024-11-16 10:52:01,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:52:01,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 464 [2024-11-16 10:52:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:52:01,715 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:52:01,715 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:52:01,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:52:01,716 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 655 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:52:01,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1243 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:52:01,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:52:01,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:52:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3757142857142857) internal successors, (963), 700 states have internal predecessors, (963), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:52:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 975 transitions. [2024-11-16 10:52:01,730 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 975 transitions. Word has length 464 [2024-11-16 10:52:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:52:01,731 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 975 transitions. [2024-11-16 10:52:01,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:52:01,731 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 975 transitions. [2024-11-16 10:52:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-16 10:52:01,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:52:01,734 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:52:01,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-16 10:52:01,734 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:52:01,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:52:01,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1606390674, now seen corresponding path program 1 times [2024-11-16 10:52:01,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:52:01,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507507477] [2024-11-16 10:52:01,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:52:01,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:52:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:03,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:52:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:03,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:52:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:03,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:52:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:03,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-16 10:52:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:03,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-16 10:52:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:03,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-11-16 10:52:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:03,129 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:52:03,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:52:03,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507507477] [2024-11-16 10:52:03,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507507477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:52:03,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:52:03,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:52:03,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228513180] [2024-11-16 10:52:03,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:52:03,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:52:03,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:52:03,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:52:03,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:52:03,132 INFO L87 Difference]: Start difference. First operand 708 states and 975 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:52:03,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:52:03,347 INFO L93 Difference]: Finished difference Result 1161 states and 1599 transitions. [2024-11-16 10:52:03,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:52:03,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 465 [2024-11-16 10:52:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:52:03,349 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:52:03,349 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:52:03,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:52:03,350 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 506 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:52:03,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1236 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:52:03,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:52:03,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:52:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3742857142857143) internal successors, (962), 700 states have internal predecessors, (962), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:52:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 974 transitions. [2024-11-16 10:52:03,365 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 974 transitions. Word has length 465 [2024-11-16 10:52:03,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:52:03,365 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 974 transitions. [2024-11-16 10:52:03,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:52:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 974 transitions. [2024-11-16 10:52:03,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-16 10:52:03,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:52:03,369 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:52:03,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-16 10:52:03,369 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:52:03,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:52:03,369 INFO L85 PathProgramCache]: Analyzing trace with hash -939754574, now seen corresponding path program 1 times [2024-11-16 10:52:03,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:52:03,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238200065] [2024-11-16 10:52:03,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:52:03,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:52:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:04,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:52:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:04,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:52:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:04,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:52:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:04,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-16 10:52:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:04,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-16 10:52:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:04,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-11-16 10:52:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:04,529 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:52:04,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:52:04,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238200065] [2024-11-16 10:52:04,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238200065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:52:04,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:52:04,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:52:04,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220027876] [2024-11-16 10:52:04,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:52:04,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:52:04,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:52:04,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:52:04,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:52:04,532 INFO L87 Difference]: Start difference. First operand 708 states and 974 transitions. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:52:04,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:52:04,796 INFO L93 Difference]: Finished difference Result 1161 states and 1597 transitions. [2024-11-16 10:52:04,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:52:04,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 466 [2024-11-16 10:52:04,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:52:04,798 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:52:04,798 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:52:04,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:52:04,799 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 638 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:52:04,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1197 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:52:04,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:52:04,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:52:04,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3728571428571428) internal successors, (961), 700 states have internal predecessors, (961), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:52:04,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 973 transitions. [2024-11-16 10:52:04,813 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 973 transitions. Word has length 466 [2024-11-16 10:52:04,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:52:04,814 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 973 transitions. [2024-11-16 10:52:04,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:52:04,814 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 973 transitions. [2024-11-16 10:52:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-16 10:52:04,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:52:04,817 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:52:04,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-16 10:52:04,817 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:52:04,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:52:04,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1852920095, now seen corresponding path program 1 times [2024-11-16 10:52:04,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:52:04,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570091948] [2024-11-16 10:52:04,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:52:04,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:52:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:06,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:52:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:06,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:52:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:06,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:52:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:06,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-16 10:52:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:06,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-16 10:52:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:06,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-11-16 10:52:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:52:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:52:06,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:52:06,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570091948] [2024-11-16 10:52:06,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570091948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:52:06,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:52:06,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:52:06,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535795472] [2024-11-16 10:52:06,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:52:06,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:52:06,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:52:06,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:52:06,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:52:06,073 INFO L87 Difference]: Start difference. First operand 708 states and 973 transitions. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:52:06,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:52:06,347 INFO L93 Difference]: Finished difference Result 1161 states and 1595 transitions. [2024-11-16 10:52:06,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:52:06,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 467 [2024-11-16 10:52:06,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:52:06,349 INFO L225 Difference]: With dead ends: 1161 [2024-11-16 10:52:06,349 INFO L226 Difference]: Without dead ends: 708 [2024-11-16 10:52:06,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:52:06,350 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 1204 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:52:06,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 1190 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:52:06,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-16 10:52:06,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-11-16 10:52:06,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 700 states have (on average 1.3714285714285714) internal successors, (960), 700 states have internal predecessors, (960), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:52:06,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 972 transitions. [2024-11-16 10:52:06,367 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 972 transitions. Word has length 467 [2024-11-16 10:52:06,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:52:06,368 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 972 transitions. [2024-11-16 10:52:06,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:52:06,368 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 972 transitions. [2024-11-16 10:52:06,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-16 10:52:06,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:52:06,371 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:52:06,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-16 10:52:06,372 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:52:06,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:52:06,372 INFO L85 PathProgramCache]: Analyzing trace with hash 231387267, now seen corresponding path program 1 times [2024-11-16 10:52:06,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:52:06,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157117136] [2024-11-16 10:52:06,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:52:06,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms