./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 3061b6dc 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.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 17:12:43,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 17:12:43,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 17:12:43,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 17:12:43,690 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 17:12:43,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 17:12:43,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 17:12:43,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 17:12:43,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 17:12:43,723 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 17:12:43,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 17:12:43,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 17:12:43,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 17:12:43,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 17:12:43,727 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 17:12:43,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 17:12:43,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 17:12:43,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 17:12:43,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 17:12:43,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 17:12:43,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 17:12:43,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 17:12:43,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 17:12:43,729 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 17:12:43,729 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 17:12:43,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 17:12:43,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 17:12:43,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 17:12:43,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 17:12:43,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:12:43,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 17:12:43,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 17:12:43,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 17:12:43,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 17:12:43,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 17:12:43,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 17:12:43,733 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 17:12:43,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 17:12:43,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 17:12:43,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b1736736c06966e3b4f5adb4865787ef8bbb0ebdf6c77cc2a8afb60cf5fc8db [2024-11-18 17:12:43,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 17:12:43,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 17:12:43,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 17:12:43,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 17:12:43,970 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 17:12:43,974 INFO L431 ainManager$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 [2024-11-18 17:12:45,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 17:12:45,580 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 17:12:45,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2024-11-18 17:12:45,599 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95df4490e/281a862adbed494dae32d96387440d90/FLAG12b67c6a7 [2024-11-18 17:12:45,926 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95df4490e/281a862adbed494dae32d96387440d90 [2024-11-18 17:12:45,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 17:12:45,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 17:12:45,930 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 17:12:45,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 17:12:45,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 17:12:45,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:12:45" (1/1) ... [2024-11-18 17:12:45,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718a1cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:45, skipping insertion in model container [2024-11-18 17:12:45,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:12:45" (1/1) ... [2024-11-18 17:12:45,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 17:12:46,128 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] [2024-11-18 17:12:46,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:12:46,416 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 17:12:46,426 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] [2024-11-18 17:12:46,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:12:46,548 INFO L204 MainTranslator]: Completed translation [2024-11-18 17:12:46,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46 WrapperNode [2024-11-18 17:12:46,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 17:12:46,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 17:12:46,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 17:12:46,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 17:12:46,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:46,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:46,840 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1977 [2024-11-18 17:12:46,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 17:12:46,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 17:12:46,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 17:12:46,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 17:12:46,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:46,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:46,907 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:46,981 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]. [2024-11-18 17:12:46,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:46,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:47,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:47,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:47,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:47,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:47,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 17:12:47,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 17:12:47,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 17:12:47,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 17:12:47,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (1/1) ... [2024-11-18 17:12:47,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:12:47,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:12:47,323 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) [2024-11-18 17:12:47,325 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 [2024-11-18 17:12:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 17:12:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 17:12:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 17:12:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 17:12:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 17:12:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 17:12:47,626 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 17:12:47,629 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 17:12:49,207 INFO L? ?]: Removed 1091 outVars from TransFormulas that were not future-live. [2024-11-18 17:12:49,207 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 17:12:49,227 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 17:12:49,227 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 17:12:49,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:12:49 BoogieIcfgContainer [2024-11-18 17:12:49,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 17:12:49,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 17:12:49,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 17:12:49,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 17:12:49,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:12:45" (1/3) ... [2024-11-18 17:12:49,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff29af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:12:49, skipping insertion in model container [2024-11-18 17:12:49,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:12:46" (2/3) ... [2024-11-18 17:12:49,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff29af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:12:49, skipping insertion in model container [2024-11-18 17:12:49,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:12:49" (3/3) ... [2024-11-18 17:12:49,234 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w8_d16_e0.c [2024-11-18 17:12:49,247 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 17:12:49,247 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 17:12:49,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 17:12:49,304 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;@6c5186dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 17:12:49,304 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 17:12:49,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 552 states, 546 states have (on average 1.4945054945054945) internal successors, (816), 547 states have internal predecessors, (816), 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) [2024-11-18 17:12:49,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-18 17:12:49,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:49,328 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] [2024-11-18 17:12:49,330 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:49,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:49,335 INFO L85 PathProgramCache]: Analyzing trace with hash -570647152, now seen corresponding path program 1 times [2024-11-18 17:12:49,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:49,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599426635] [2024-11-18 17:12:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:49,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:49,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 17:12:49,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:49,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599426635] [2024-11-18 17:12:49,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599426635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 17:12:49,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413871015] [2024-11-18 17:12:49,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:49,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:12:49,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:12:49,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 17:12:49,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 17:12:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:50,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 17:12:50,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:12:50,132 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 17:12:50,132 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 17:12:50,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413871015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:50,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 17:12:50,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 17:12:50,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783802075] [2024-11-18 17:12:50,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:50,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 17:12:50,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:50,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 17:12:50,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 17:12:50,159 INFO L87 Difference]: Start difference. First operand has 552 states, 546 states have (on average 1.4945054945054945) internal successors, (816), 547 states have internal predecessors, (816), 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 69.5) internal successors, (139), 2 states have internal predecessors, (139), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 17:12:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:50,202 INFO L93 Difference]: Finished difference Result 999 states and 1493 transitions. [2024-11-18 17:12:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 17:12:50,206 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 2 states have call successors, (3), 2 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 149 [2024-11-18 17:12:50,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:50,219 INFO L225 Difference]: With dead ends: 999 [2024-11-18 17:12:50,220 INFO L226 Difference]: Without dead ends: 549 [2024-11-18 17:12:50,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 17:12:50,229 INFO L432 NwaCegarLoop]: 817 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:50,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:12:50,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-18 17:12:50,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-18 17:12:50,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 544 states have (on average 1.4908088235294117) internal successors, (811), 544 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) [2024-11-18 17:12:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 817 transitions. [2024-11-18 17:12:50,301 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 817 transitions. Word has length 149 [2024-11-18 17:12:50,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:50,302 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 817 transitions. [2024-11-18 17:12:50,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 17:12:50,302 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 817 transitions. [2024-11-18 17:12:50,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-18 17:12:50,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:50,307 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] [2024-11-18 17:12:50,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 17:12:50,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 17:12:50,513 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:50,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:50,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1154250, now seen corresponding path program 1 times [2024-11-18 17:12:50,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:50,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891225326] [2024-11-18 17:12:50,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:50,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:51,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:51,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891225326] [2024-11-18 17:12:51,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891225326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:51,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:51,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:51,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447320365] [2024-11-18 17:12:51,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:51,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:51,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:51,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:51,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:51,404 INFO L87 Difference]: Start difference. First operand 549 states and 817 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2024-11-18 17:12:51,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:51,442 INFO L93 Difference]: Finished difference Result 553 states and 821 transitions. [2024-11-18 17:12:51,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:51,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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 149 [2024-11-18 17:12:51,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:51,445 INFO L225 Difference]: With dead ends: 553 [2024-11-18 17:12:51,445 INFO L226 Difference]: Without dead ends: 551 [2024-11-18 17:12:51,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:51,446 INFO L432 NwaCegarLoop]: 815 mSDtfsCounter, 0 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:51,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2439 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:12:51,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-18 17:12:51,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-11-18 17:12:51,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.489010989010989) internal successors, (813), 546 states have internal predecessors, (813), 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) [2024-11-18 17:12:51,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 819 transitions. [2024-11-18 17:12:51,458 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 819 transitions. Word has length 149 [2024-11-18 17:12:51,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:51,460 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 819 transitions. [2024-11-18 17:12:51,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2024-11-18 17:12:51,460 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 819 transitions. [2024-11-18 17:12:51,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-18 17:12:51,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:51,462 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] [2024-11-18 17:12:51,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 17:12:51,462 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:51,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:51,463 INFO L85 PathProgramCache]: Analyzing trace with hash 37477728, now seen corresponding path program 1 times [2024-11-18 17:12:51,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:51,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841099115] [2024-11-18 17:12:51,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:51,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:51,884 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:51,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:51,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841099115] [2024-11-18 17:12:51,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841099115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:51,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:51,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:51,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535645173] [2024-11-18 17:12:51,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:51,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:51,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:51,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:51,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:51,889 INFO L87 Difference]: Start difference. First operand 551 states and 819 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 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) [2024-11-18 17:12:52,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:52,260 INFO L93 Difference]: Finished difference Result 1371 states and 2041 transitions. [2024-11-18 17:12:52,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:12:52,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 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 [2024-11-18 17:12:52,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:52,263 INFO L225 Difference]: With dead ends: 1371 [2024-11-18 17:12:52,263 INFO L226 Difference]: Without dead ends: 551 [2024-11-18 17:12:52,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 17:12:52,266 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 1618 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:52,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 2351 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:12:52,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-18 17:12:52,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-11-18 17:12:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 546 states have (on average 1.4871794871794872) internal successors, (812), 546 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) [2024-11-18 17:12:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 818 transitions. [2024-11-18 17:12:52,278 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 818 transitions. Word has length 150 [2024-11-18 17:12:52,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:52,278 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 818 transitions. [2024-11-18 17:12:52,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 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) [2024-11-18 17:12:52,279 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 818 transitions. [2024-11-18 17:12:52,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-18 17:12:52,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:52,280 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] [2024-11-18 17:12:52,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 17:12:52,281 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:52,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:52,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1675368076, now seen corresponding path program 1 times [2024-11-18 17:12:52,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:52,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765600803] [2024-11-18 17:12:52,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:52,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:52,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:52,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:52,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765600803] [2024-11-18 17:12:52,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765600803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:52,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:52,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:52,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875276715] [2024-11-18 17:12:52,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:52,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:52,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:52,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:52,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:52,703 INFO L87 Difference]: Start difference. First operand 551 states and 818 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 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) [2024-11-18 17:12:52,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:52,726 INFO L93 Difference]: Finished difference Result 1002 states and 1487 transitions. [2024-11-18 17:12:52,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:52,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 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 [2024-11-18 17:12:52,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:52,728 INFO L225 Difference]: With dead ends: 1002 [2024-11-18 17:12:52,729 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:52,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:52,730 INFO L432 NwaCegarLoop]: 814 mSDtfsCounter, 0 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:52,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2432 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:12:52,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4854014598540146) internal successors, (814), 548 states have internal predecessors, (814), 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) [2024-11-18 17:12:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 820 transitions. [2024-11-18 17:12:52,738 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 820 transitions. Word has length 151 [2024-11-18 17:12:52,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:52,738 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 820 transitions. [2024-11-18 17:12:52,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 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) [2024-11-18 17:12:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 820 transitions. [2024-11-18 17:12:52,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-18 17:12:52,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:52,740 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] [2024-11-18 17:12:52,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 17:12:52,740 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:52,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:52,741 INFO L85 PathProgramCache]: Analyzing trace with hash -701162313, now seen corresponding path program 1 times [2024-11-18 17:12:52,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:52,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224782980] [2024-11-18 17:12:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:52,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:53,176 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:53,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:53,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224782980] [2024-11-18 17:12:53,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224782980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:53,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:53,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:53,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234622097] [2024-11-18 17:12:53,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:53,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:53,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:53,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:53,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:53,179 INFO L87 Difference]: Start difference. First operand 553 states and 820 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 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) [2024-11-18 17:12:53,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:53,316 INFO L93 Difference]: Finished difference Result 1004 states and 1488 transitions. [2024-11-18 17:12:53,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:53,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 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 [2024-11-18 17:12:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:53,319 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:53,319 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:53,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:53,321 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 688 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:53,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 1470 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:53,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:53,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4835766423357664) internal successors, (813), 548 states have internal predecessors, (813), 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) [2024-11-18 17:12:53,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 819 transitions. [2024-11-18 17:12:53,329 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 819 transitions. Word has length 152 [2024-11-18 17:12:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:53,329 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 819 transitions. [2024-11-18 17:12:53,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 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) [2024-11-18 17:12:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 819 transitions. [2024-11-18 17:12:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-18 17:12:53,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:53,330 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] [2024-11-18 17:12:53,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 17:12:53,331 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:53,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:53,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1183249528, now seen corresponding path program 1 times [2024-11-18 17:12:53,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:53,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586902440] [2024-11-18 17:12:53,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:53,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:53,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:53,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586902440] [2024-11-18 17:12:53,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586902440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:53,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:53,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:53,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940707333] [2024-11-18 17:12:53,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:53,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:53,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:53,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:53,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:53,587 INFO L87 Difference]: Start difference. First operand 553 states and 819 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) [2024-11-18 17:12:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:53,704 INFO L93 Difference]: Finished difference Result 1016 states and 1503 transitions. [2024-11-18 17:12:53,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:12:53,704 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 [2024-11-18 17:12:53,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:53,706 INFO L225 Difference]: With dead ends: 1016 [2024-11-18 17:12:53,706 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:53,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:12:53,707 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 711 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:53,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 2344 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:53,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:53,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:53,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4817518248175183) internal successors, (812), 548 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) [2024-11-18 17:12:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 818 transitions. [2024-11-18 17:12:53,716 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 818 transitions. Word has length 153 [2024-11-18 17:12:53,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:53,716 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 818 transitions. [2024-11-18 17:12:53,716 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) [2024-11-18 17:12:53,717 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 818 transitions. [2024-11-18 17:12:53,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-18 17:12:53,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:53,718 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] [2024-11-18 17:12:53,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 17:12:53,718 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:53,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:53,718 INFO L85 PathProgramCache]: Analyzing trace with hash 490248493, now seen corresponding path program 1 times [2024-11-18 17:12:53,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:53,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342008004] [2024-11-18 17:12:53,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:53,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:54,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:54,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342008004] [2024-11-18 17:12:54,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342008004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:54,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:54,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:54,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351295994] [2024-11-18 17:12:54,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:54,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:54,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:54,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:54,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:54,074 INFO L87 Difference]: Start difference. First operand 553 states and 818 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) [2024-11-18 17:12:54,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:54,221 INFO L93 Difference]: Finished difference Result 1004 states and 1484 transitions. [2024-11-18 17:12:54,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:54,222 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 [2024-11-18 17:12:54,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:54,224 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:54,224 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:54,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:54,226 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 1495 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:54,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1470 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:54,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:54,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:54,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.47992700729927) internal successors, (811), 548 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) [2024-11-18 17:12:54,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 817 transitions. [2024-11-18 17:12:54,236 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 817 transitions. Word has length 154 [2024-11-18 17:12:54,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:54,237 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 817 transitions. [2024-11-18 17:12:54,237 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) [2024-11-18 17:12:54,237 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 817 transitions. [2024-11-18 17:12:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-18 17:12:54,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:54,238 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] [2024-11-18 17:12:54,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 17:12:54,239 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:54,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:54,239 INFO L85 PathProgramCache]: Analyzing trace with hash -783591409, now seen corresponding path program 1 times [2024-11-18 17:12:54,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:54,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771932415] [2024-11-18 17:12:54,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:54,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:54,544 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:54,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:54,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771932415] [2024-11-18 17:12:54,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771932415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:54,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:54,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:54,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372400143] [2024-11-18 17:12:54,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:54,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:54,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:54,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:54,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:54,546 INFO L87 Difference]: Start difference. First operand 553 states and 817 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) [2024-11-18 17:12:54,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:54,670 INFO L93 Difference]: Finished difference Result 1004 states and 1482 transitions. [2024-11-18 17:12:54,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:54,670 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 [2024-11-18 17:12:54,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:54,673 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:54,673 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:54,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:54,674 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 798 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:54,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1477 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:54,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:54,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4781021897810218) internal successors, (810), 548 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) [2024-11-18 17:12:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 816 transitions. [2024-11-18 17:12:54,684 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 816 transitions. Word has length 155 [2024-11-18 17:12:54,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:54,684 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 816 transitions. [2024-11-18 17:12:54,685 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) [2024-11-18 17:12:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 816 transitions. [2024-11-18 17:12:54,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 17:12:54,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:54,686 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] [2024-11-18 17:12:54,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 17:12:54,686 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:54,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:54,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2058607380, now seen corresponding path program 1 times [2024-11-18 17:12:54,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:54,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609184454] [2024-11-18 17:12:54,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:54,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:55,015 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:55,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:55,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609184454] [2024-11-18 17:12:55,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609184454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:55,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:55,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:55,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192620654] [2024-11-18 17:12:55,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:55,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:55,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:55,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:55,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:55,017 INFO L87 Difference]: Start difference. First operand 553 states and 816 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) [2024-11-18 17:12:55,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:55,149 INFO L93 Difference]: Finished difference Result 1004 states and 1480 transitions. [2024-11-18 17:12:55,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:55,150 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 [2024-11-18 17:12:55,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:55,151 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:55,152 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:55,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:55,153 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 1479 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:55,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1470 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:55,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:55,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4762773722627738) internal successors, (809), 548 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) [2024-11-18 17:12:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 815 transitions. [2024-11-18 17:12:55,161 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 815 transitions. Word has length 156 [2024-11-18 17:12:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:55,162 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 815 transitions. [2024-11-18 17:12:55,162 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) [2024-11-18 17:12:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 815 transitions. [2024-11-18 17:12:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-18 17:12:55,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:55,163 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] [2024-11-18 17:12:55,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 17:12:55,164 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:55,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:55,164 INFO L85 PathProgramCache]: Analyzing trace with hash -291873770, now seen corresponding path program 1 times [2024-11-18 17:12:55,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:55,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982876105] [2024-11-18 17:12:55,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:55,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:55,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:55,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982876105] [2024-11-18 17:12:55,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982876105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:55,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:55,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:55,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026507087] [2024-11-18 17:12:55,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:55,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:55,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:55,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:55,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:55,450 INFO L87 Difference]: Start difference. First operand 553 states and 815 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) [2024-11-18 17:12:55,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:55,572 INFO L93 Difference]: Finished difference Result 1004 states and 1478 transitions. [2024-11-18 17:12:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:55,573 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 [2024-11-18 17:12:55,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:55,575 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:55,575 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:55,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:55,576 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 790 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:55,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1477 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:55,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:55,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4744525547445255) internal successors, (808), 548 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) [2024-11-18 17:12:55,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 814 transitions. [2024-11-18 17:12:55,585 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 814 transitions. Word has length 157 [2024-11-18 17:12:55,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:55,585 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 814 transitions. [2024-11-18 17:12:55,585 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) [2024-11-18 17:12:55,585 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 814 transitions. [2024-11-18 17:12:55,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-18 17:12:55,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:55,587 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] [2024-11-18 17:12:55,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 17:12:55,587 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:55,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:55,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1376930939, now seen corresponding path program 1 times [2024-11-18 17:12:55,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:55,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016929733] [2024-11-18 17:12:55,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:55,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:55,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:55,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016929733] [2024-11-18 17:12:55,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016929733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:55,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:55,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:55,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155005294] [2024-11-18 17:12:55,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:55,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:55,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:55,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:55,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:55,899 INFO L87 Difference]: Start difference. First operand 553 states and 814 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 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) [2024-11-18 17:12:56,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:56,025 INFO L93 Difference]: Finished difference Result 1004 states and 1476 transitions. [2024-11-18 17:12:56,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:56,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 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 [2024-11-18 17:12:56,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:56,028 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:56,028 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:56,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:56,029 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 1463 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:56,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 1470 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:56,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:56,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:56,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4726277372262773) internal successors, (807), 548 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) [2024-11-18 17:12:56,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 813 transitions. [2024-11-18 17:12:56,037 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 813 transitions. Word has length 158 [2024-11-18 17:12:56,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:56,038 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 813 transitions. [2024-11-18 17:12:56,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 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) [2024-11-18 17:12:56,038 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 813 transitions. [2024-11-18 17:12:56,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-18 17:12:56,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:56,039 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] [2024-11-18 17:12:56,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 17:12:56,039 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:56,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:56,040 INFO L85 PathProgramCache]: Analyzing trace with hash 436656029, now seen corresponding path program 1 times [2024-11-18 17:12:56,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:56,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121735005] [2024-11-18 17:12:56,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:56,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:56,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:56,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121735005] [2024-11-18 17:12:56,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121735005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:56,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:56,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:56,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005545358] [2024-11-18 17:12:56,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:56,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:56,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:56,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:56,320 INFO L87 Difference]: Start difference. First operand 553 states and 813 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) [2024-11-18 17:12:56,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:56,444 INFO L93 Difference]: Finished difference Result 1004 states and 1474 transitions. [2024-11-18 17:12:56,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:56,445 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 [2024-11-18 17:12:56,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:56,447 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:56,447 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:56,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:56,448 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 779 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:56,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1477 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:56,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:56,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:56,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4708029197080292) internal successors, (806), 548 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) [2024-11-18 17:12:56,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 812 transitions. [2024-11-18 17:12:56,456 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 812 transitions. Word has length 159 [2024-11-18 17:12:56,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:56,456 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 812 transitions. [2024-11-18 17:12:56,457 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) [2024-11-18 17:12:56,457 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 812 transitions. [2024-11-18 17:12:56,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-18 17:12:56,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:56,458 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] [2024-11-18 17:12:56,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 17:12:56,458 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:56,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:56,459 INFO L85 PathProgramCache]: Analyzing trace with hash -519943653, now seen corresponding path program 1 times [2024-11-18 17:12:56,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:56,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083325200] [2024-11-18 17:12:56,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:56,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:56,885 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:56,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:56,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083325200] [2024-11-18 17:12:56,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083325200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:56,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:56,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:56,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859844649] [2024-11-18 17:12:56,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:56,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:56,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:56,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:56,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:56,888 INFO L87 Difference]: Start difference. First operand 553 states and 812 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) [2024-11-18 17:12:56,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:56,938 INFO L93 Difference]: Finished difference Result 1004 states and 1472 transitions. [2024-11-18 17:12:56,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:56,939 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 [2024-11-18 17:12:56,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:56,941 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:56,941 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:56,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:56,942 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 703 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:56,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 1574 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:12:56,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:56,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:56,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.467153284671533) internal successors, (804), 548 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) [2024-11-18 17:12:56,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 810 transitions. [2024-11-18 17:12:56,950 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 810 transitions. Word has length 160 [2024-11-18 17:12:56,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:56,951 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 810 transitions. [2024-11-18 17:12:56,951 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) [2024-11-18 17:12:56,951 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 810 transitions. [2024-11-18 17:12:56,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-18 17:12:56,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:56,952 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] [2024-11-18 17:12:56,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 17:12:56,952 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:56,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash 566117464, now seen corresponding path program 1 times [2024-11-18 17:12:56,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:56,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048529736] [2024-11-18 17:12:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:56,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:57,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:57,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048529736] [2024-11-18 17:12:57,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048529736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:57,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:57,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:57,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151902881] [2024-11-18 17:12:57,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:57,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:57,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:57,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:57,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:57,255 INFO L87 Difference]: Start difference. First operand 553 states and 810 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) [2024-11-18 17:12:57,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:57,309 INFO L93 Difference]: Finished difference Result 1004 states and 1468 transitions. [2024-11-18 17:12:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:57,309 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 [2024-11-18 17:12:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:57,311 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:57,311 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:57,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:57,312 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 793 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:57,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1581 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:12:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:57,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4653284671532847) internal successors, (803), 548 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) [2024-11-18 17:12:57,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 809 transitions. [2024-11-18 17:12:57,321 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 809 transitions. Word has length 162 [2024-11-18 17:12:57,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:57,322 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 809 transitions. [2024-11-18 17:12:57,322 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) [2024-11-18 17:12:57,322 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 809 transitions. [2024-11-18 17:12:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 17:12:57,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:57,323 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] [2024-11-18 17:12:57,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 17:12:57,323 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:57,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1895493852, now seen corresponding path program 1 times [2024-11-18 17:12:57,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:57,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189406189] [2024-11-18 17:12:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:57,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:57,763 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:57,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:57,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189406189] [2024-11-18 17:12:57,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189406189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:57,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:57,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:57,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479191678] [2024-11-18 17:12:57,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:57,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:57,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:57,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:57,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:57,766 INFO L87 Difference]: Start difference. First operand 553 states and 809 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 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) [2024-11-18 17:12:57,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:57,861 INFO L93 Difference]: Finished difference Result 1004 states and 1466 transitions. [2024-11-18 17:12:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:57,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 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 [2024-11-18 17:12:57,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:57,864 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:57,864 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:57,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:57,865 INFO L432 NwaCegarLoop]: 763 mSDtfsCounter, 690 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:57,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1528 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:57,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:57,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4635036496350364) internal successors, (802), 548 states have internal predecessors, (802), 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) [2024-11-18 17:12:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 808 transitions. [2024-11-18 17:12:57,876 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 808 transitions. Word has length 163 [2024-11-18 17:12:57,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:57,877 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 808 transitions. [2024-11-18 17:12:57,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 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) [2024-11-18 17:12:57,877 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 808 transitions. [2024-11-18 17:12:57,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-18 17:12:57,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:57,879 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] [2024-11-18 17:12:57,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 17:12:57,879 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:57,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:57,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1757242237, now seen corresponding path program 1 times [2024-11-18 17:12:57,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:57,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732810617] [2024-11-18 17:12:57,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:57,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:58,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:58,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732810617] [2024-11-18 17:12:58,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732810617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:58,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:58,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:58,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990244791] [2024-11-18 17:12:58,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:58,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:58,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:58,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:58,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:58,225 INFO L87 Difference]: Start difference. First operand 553 states and 808 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) [2024-11-18 17:12:58,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:58,309 INFO L93 Difference]: Finished difference Result 1008 states and 1469 transitions. [2024-11-18 17:12:58,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:12:58,310 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 [2024-11-18 17:12:58,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:58,312 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:12:58,312 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:58,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:12:58,313 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 697 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:58,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 2359 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:58,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:58,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4616788321167884) internal successors, (801), 548 states have internal predecessors, (801), 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) [2024-11-18 17:12:58,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 807 transitions. [2024-11-18 17:12:58,325 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 807 transitions. Word has length 164 [2024-11-18 17:12:58,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:58,325 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 807 transitions. [2024-11-18 17:12:58,326 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) [2024-11-18 17:12:58,326 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 807 transitions. [2024-11-18 17:12:58,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-18 17:12:58,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:58,327 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] [2024-11-18 17:12:58,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 17:12:58,328 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:58,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:58,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2041756626, now seen corresponding path program 1 times [2024-11-18 17:12:58,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:58,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109874564] [2024-11-18 17:12:58,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:58,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:58,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:58,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109874564] [2024-11-18 17:12:58,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109874564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:58,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:58,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:58,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310574415] [2024-11-18 17:12:58,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:58,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:58,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:58,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:58,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:58,693 INFO L87 Difference]: Start difference. First operand 553 states and 807 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 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) [2024-11-18 17:12:58,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:58,771 INFO L93 Difference]: Finished difference Result 1004 states and 1462 transitions. [2024-11-18 17:12:58,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:58,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 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 [2024-11-18 17:12:58,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:58,774 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:58,774 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:58,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:58,775 INFO L432 NwaCegarLoop]: 763 mSDtfsCounter, 791 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:58,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1535 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:58,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:58,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:58,783 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) [2024-11-18 17:12:58,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 806 transitions. [2024-11-18 17:12:58,784 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 806 transitions. Word has length 165 [2024-11-18 17:12:58,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:58,785 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 806 transitions. [2024-11-18 17:12:58,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 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) [2024-11-18 17:12:58,785 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 806 transitions. [2024-11-18 17:12:58,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 17:12:58,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:58,786 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] [2024-11-18 17:12:58,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 17:12:58,786 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:58,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:58,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1404140490, now seen corresponding path program 1 times [2024-11-18 17:12:58,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:58,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682932117] [2024-11-18 17:12:58,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:58,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:59,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:59,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682932117] [2024-11-18 17:12:59,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682932117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:59,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:59,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:12:59,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140463322] [2024-11-18 17:12:59,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:59,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:12:59,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:59,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:12:59,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:59,087 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) [2024-11-18 17:12:59,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:59,165 INFO L93 Difference]: Finished difference Result 1004 states and 1460 transitions. [2024-11-18 17:12:59,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:59,166 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 [2024-11-18 17:12:59,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:59,168 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:59,168 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:59,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:12:59,169 INFO L432 NwaCegarLoop]: 763 mSDtfsCounter, 1464 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:59,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 1528 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:12:59,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:59,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:59,177 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) [2024-11-18 17:12:59,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 805 transitions. [2024-11-18 17:12:59,178 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 805 transitions. Word has length 166 [2024-11-18 17:12:59,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:59,178 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 805 transitions. [2024-11-18 17:12:59,178 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) [2024-11-18 17:12:59,179 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 805 transitions. [2024-11-18 17:12:59,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 17:12:59,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:59,180 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] [2024-11-18 17:12:59,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 17:12:59,180 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:59,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:59,180 INFO L85 PathProgramCache]: Analyzing trace with hash 2035593486, now seen corresponding path program 1 times [2024-11-18 17:12:59,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:59,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219664509] [2024-11-18 17:12:59,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:59,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:59,512 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:59,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:59,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219664509] [2024-11-18 17:12:59,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219664509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:59,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:59,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:59,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354524973] [2024-11-18 17:12:59,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:59,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:59,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:59,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:59,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:59,514 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) [2024-11-18 17:12:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:12:59,562 INFO L93 Difference]: Finished difference Result 1004 states and 1458 transitions. [2024-11-18 17:12:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:12:59,563 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 [2024-11-18 17:12:59,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:12:59,564 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:12:59,565 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:12:59,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:12:59,566 INFO L432 NwaCegarLoop]: 785 mSDtfsCounter, 734 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:12:59,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1572 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:12:59,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:12:59,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:12:59,573 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) [2024-11-18 17:12:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 804 transitions. [2024-11-18 17:12:59,575 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 804 transitions. Word has length 167 [2024-11-18 17:12:59,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:12:59,575 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 804 transitions. [2024-11-18 17:12:59,575 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) [2024-11-18 17:12:59,575 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 804 transitions. [2024-11-18 17:12:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-18 17:12:59,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:12:59,577 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] [2024-11-18 17:12:59,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 17:12:59,577 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:12:59,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:12:59,577 INFO L85 PathProgramCache]: Analyzing trace with hash 116921244, now seen corresponding path program 1 times [2024-11-18 17:12:59,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:12:59,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910671557] [2024-11-18 17:12:59,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:12:59,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:12:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:12:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:12:59,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:12:59,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910671557] [2024-11-18 17:12:59,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910671557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:12:59,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:12:59,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:12:59,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105172786] [2024-11-18 17:12:59,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:12:59,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:12:59,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:12:59,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:12:59,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:12:59,965 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) [2024-11-18 17:13:00,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:00,019 INFO L93 Difference]: Finished difference Result 1004 states and 1456 transitions. [2024-11-18 17:13:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:00,020 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 [2024-11-18 17:13:00,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:00,022 INFO L225 Difference]: With dead ends: 1004 [2024-11-18 17:13:00,022 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 17:13:00,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:00,023 INFO L432 NwaCegarLoop]: 785 mSDtfsCounter, 732 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:00,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1572 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 17:13:00,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-18 17:13:00,037 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) [2024-11-18 17:13:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 803 transitions. [2024-11-18 17:13:00,039 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 803 transitions. Word has length 168 [2024-11-18 17:13:00,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:00,039 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 803 transitions. [2024-11-18 17:13:00,040 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) [2024-11-18 17:13:00,040 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 803 transitions. [2024-11-18 17:13:00,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 17:13:00,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:00,041 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] [2024-11-18 17:13:00,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 17:13:00,042 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:00,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:00,042 INFO L85 PathProgramCache]: Analyzing trace with hash -2032439125, now seen corresponding path program 1 times [2024-11-18 17:13:00,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:00,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968687589] [2024-11-18 17:13:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:00,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:00,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:00,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968687589] [2024-11-18 17:13:00,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968687589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:00,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:00,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:00,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104764159] [2024-11-18 17:13:00,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:00,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:00,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:00,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:00,757 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) [2024-11-18 17:13:00,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:00,952 INFO L93 Difference]: Finished difference Result 1010 states and 1462 transitions. [2024-11-18 17:13:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:13:00,952 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 [2024-11-18 17:13:00,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:00,955 INFO L225 Difference]: With dead ends: 1010 [2024-11-18 17:13:00,955 INFO L226 Difference]: Without dead ends: 557 [2024-11-18 17:13:00,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:00,956 INFO L432 NwaCegarLoop]: 793 mSDtfsCounter, 2 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:00,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2979 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:13:00,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-18 17:13:00,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 555. [2024-11-18 17:13:00,972 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) [2024-11-18 17:13:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 805 transitions. [2024-11-18 17:13:00,973 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 805 transitions. Word has length 169 [2024-11-18 17:13:00,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:00,973 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 805 transitions. [2024-11-18 17:13:00,974 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) [2024-11-18 17:13:00,974 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 805 transitions. [2024-11-18 17:13:00,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-18 17:13:00,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:00,976 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] [2024-11-18 17:13:00,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 17:13:00,976 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:00,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:00,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1239712212, now seen corresponding path program 1 times [2024-11-18 17:13:00,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:00,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838570973] [2024-11-18 17:13:00,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:00,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:01,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:01,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838570973] [2024-11-18 17:13:01,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838570973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:01,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:01,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:01,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600805643] [2024-11-18 17:13:01,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:01,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:01,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:01,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:01,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:01,359 INFO L87 Difference]: Start difference. First operand 555 states and 805 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 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) [2024-11-18 17:13:01,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:01,443 INFO L93 Difference]: Finished difference Result 1008 states and 1458 transitions. [2024-11-18 17:13:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:01,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 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 [2024-11-18 17:13:01,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:01,446 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:13:01,446 INFO L226 Difference]: Without dead ends: 555 [2024-11-18 17:13:01,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:01,447 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 684 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:01,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 1524 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:01,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-18 17:13:01,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-18 17:13:01,455 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) [2024-11-18 17:13:01,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 804 transitions. [2024-11-18 17:13:01,456 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 804 transitions. Word has length 170 [2024-11-18 17:13:01,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:01,457 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 804 transitions. [2024-11-18 17:13:01,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 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) [2024-11-18 17:13:01,457 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 804 transitions. [2024-11-18 17:13:01,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-18 17:13:01,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:01,458 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] [2024-11-18 17:13:01,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 17:13:01,459 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:01,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:01,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1094471960, now seen corresponding path program 1 times [2024-11-18 17:13:01,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:01,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124094648] [2024-11-18 17:13:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:01,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:01,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:01,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124094648] [2024-11-18 17:13:01,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124094648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:01,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:01,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:01,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260506993] [2024-11-18 17:13:01,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:01,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:01,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:01,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:01,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:01,904 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) [2024-11-18 17:13:01,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:01,997 INFO L93 Difference]: Finished difference Result 1008 states and 1456 transitions. [2024-11-18 17:13:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:01,998 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 [2024-11-18 17:13:01,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:01,999 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:13:02,000 INFO L226 Difference]: Without dead ends: 555 [2024-11-18 17:13:02,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:02,001 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 1360 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:02,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 1524 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:02,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-18 17:13:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-18 17:13:02,013 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) [2024-11-18 17:13:02,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 803 transitions. [2024-11-18 17:13:02,014 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 803 transitions. Word has length 171 [2024-11-18 17:13:02,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:02,015 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 803 transitions. [2024-11-18 17:13:02,015 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) [2024-11-18 17:13:02,015 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 803 transitions. [2024-11-18 17:13:02,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-18 17:13:02,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:02,016 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] [2024-11-18 17:13:02,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 17:13:02,016 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:02,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:02,017 INFO L85 PathProgramCache]: Analyzing trace with hash 801073965, now seen corresponding path program 1 times [2024-11-18 17:13:02,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:02,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487186316] [2024-11-18 17:13:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:02,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:02,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:02,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487186316] [2024-11-18 17:13:02,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487186316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:02,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:02,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:02,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127258615] [2024-11-18 17:13:02,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:02,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:02,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:02,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:02,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:02,411 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) [2024-11-18 17:13:02,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:02,506 INFO L93 Difference]: Finished difference Result 1008 states and 1454 transitions. [2024-11-18 17:13:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:02,507 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 [2024-11-18 17:13:02,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:02,508 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:13:02,508 INFO L226 Difference]: Without dead ends: 555 [2024-11-18 17:13:02,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:02,509 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 1354 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:02,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 1524 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:02,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-18 17:13:02,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-18 17:13:02,519 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) [2024-11-18 17:13:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 802 transitions. [2024-11-18 17:13:02,520 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 802 transitions. Word has length 172 [2024-11-18 17:13:02,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:02,520 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 802 transitions. [2024-11-18 17:13:02,521 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) [2024-11-18 17:13:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 802 transitions. [2024-11-18 17:13:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-18 17:13:02,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:02,522 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] [2024-11-18 17:13:02,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 17:13:02,522 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:02,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:02,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1945385383, now seen corresponding path program 1 times [2024-11-18 17:13:02,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:02,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831274643] [2024-11-18 17:13:02,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:02,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:02,860 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:02,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:02,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831274643] [2024-11-18 17:13:02,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831274643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:02,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:02,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:02,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97260795] [2024-11-18 17:13:02,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:02,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:02,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:02,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:02,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:02,863 INFO L87 Difference]: Start difference. First operand 555 states and 802 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 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) [2024-11-18 17:13:02,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:02,994 INFO L93 Difference]: Finished difference Result 1008 states and 1452 transitions. [2024-11-18 17:13:02,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:02,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 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 [2024-11-18 17:13:02,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:02,996 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:13:02,996 INFO L226 Difference]: Without dead ends: 555 [2024-11-18 17:13:02,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:02,997 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 666 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:02,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1446 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:02,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-18 17:13:03,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-18 17:13:03,008 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) [2024-11-18 17:13:03,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 801 transitions. [2024-11-18 17:13:03,010 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 801 transitions. Word has length 173 [2024-11-18 17:13:03,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:03,010 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 801 transitions. [2024-11-18 17:13:03,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 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) [2024-11-18 17:13:03,011 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 801 transitions. [2024-11-18 17:13:03,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-18 17:13:03,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:03,012 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] [2024-11-18 17:13:03,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 17:13:03,017 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:03,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:03,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1844295155, now seen corresponding path program 1 times [2024-11-18 17:13:03,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:03,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077289236] [2024-11-18 17:13:03,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:03,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:03,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:03,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077289236] [2024-11-18 17:13:03,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077289236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:03,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:03,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:03,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911155611] [2024-11-18 17:13:03,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:03,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:03,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:03,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:03,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:03,798 INFO L87 Difference]: Start difference. First operand 555 states and 801 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 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) [2024-11-18 17:13:03,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:03,982 INFO L93 Difference]: Finished difference Result 1008 states and 1450 transitions. [2024-11-18 17:13:03,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:03,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 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 [2024-11-18 17:13:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:03,985 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:13:03,985 INFO L226 Difference]: Without dead ends: 555 [2024-11-18 17:13:03,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:03,986 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 664 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:03,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1453 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:03,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-18 17:13:03,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-18 17:13:03,999 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) [2024-11-18 17:13:04,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 800 transitions. [2024-11-18 17:13:04,000 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 800 transitions. Word has length 174 [2024-11-18 17:13:04,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:04,001 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 800 transitions. [2024-11-18 17:13:04,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 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) [2024-11-18 17:13:04,001 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 800 transitions. [2024-11-18 17:13:04,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-18 17:13:04,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:04,003 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] [2024-11-18 17:13:04,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 17:13:04,003 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:04,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:04,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1548719464, now seen corresponding path program 1 times [2024-11-18 17:13:04,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:04,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355383332] [2024-11-18 17:13:04,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:04,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:04,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:04,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355383332] [2024-11-18 17:13:04,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355383332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:04,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:04,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:04,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069701177] [2024-11-18 17:13:04,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:04,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:04,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:04,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:04,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:04,532 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) [2024-11-18 17:13:04,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:04,685 INFO L93 Difference]: Finished difference Result 1008 states and 1448 transitions. [2024-11-18 17:13:04,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:04,686 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 [2024-11-18 17:13:04,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:04,688 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:13:04,688 INFO L226 Difference]: Without dead ends: 555 [2024-11-18 17:13:04,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:04,689 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 663 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:04,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1453 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:04,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-18 17:13:04,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-18 17:13:04,704 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) [2024-11-18 17:13:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 799 transitions. [2024-11-18 17:13:04,705 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 799 transitions. Word has length 175 [2024-11-18 17:13:04,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:04,706 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 799 transitions. [2024-11-18 17:13:04,706 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) [2024-11-18 17:13:04,706 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 799 transitions. [2024-11-18 17:13:04,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-18 17:13:04,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:04,707 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] [2024-11-18 17:13:04,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 17:13:04,708 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:04,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:04,708 INFO L85 PathProgramCache]: Analyzing trace with hash -699945460, now seen corresponding path program 1 times [2024-11-18 17:13:04,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:04,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379855248] [2024-11-18 17:13:04,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:04,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:05,134 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:05,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:05,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379855248] [2024-11-18 17:13:05,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379855248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:05,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:05,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:05,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962182826] [2024-11-18 17:13:05,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:05,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:05,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:05,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:05,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:05,135 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) [2024-11-18 17:13:05,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:05,273 INFO L93 Difference]: Finished difference Result 1008 states and 1446 transitions. [2024-11-18 17:13:05,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:05,274 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 [2024-11-18 17:13:05,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:05,275 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:13:05,276 INFO L226 Difference]: Without dead ends: 555 [2024-11-18 17:13:05,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:05,276 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 662 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:05,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1453 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:05,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-18 17:13:05,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-18 17:13:05,285 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) [2024-11-18 17:13:05,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 798 transitions. [2024-11-18 17:13:05,286 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 798 transitions. Word has length 176 [2024-11-18 17:13:05,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:05,286 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 798 transitions. [2024-11-18 17:13:05,286 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) [2024-11-18 17:13:05,286 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 798 transitions. [2024-11-18 17:13:05,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-18 17:13:05,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:05,287 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] [2024-11-18 17:13:05,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 17:13:05,287 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:05,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:05,288 INFO L85 PathProgramCache]: Analyzing trace with hash -993030743, now seen corresponding path program 1 times [2024-11-18 17:13:05,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:05,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117099286] [2024-11-18 17:13:05,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:05,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:05,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117099286] [2024-11-18 17:13:05,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117099286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:05,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:05,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:05,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956627088] [2024-11-18 17:13:05,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:05,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:05,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:05,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:05,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:05,889 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) [2024-11-18 17:13:06,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:06,112 INFO L93 Difference]: Finished difference Result 1008 states and 1444 transitions. [2024-11-18 17:13:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:06,112 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 [2024-11-18 17:13:06,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:06,114 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:13:06,114 INFO L226 Difference]: Without dead ends: 555 [2024-11-18 17:13:06,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:06,115 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 646 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:06,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 1446 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:13:06,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-18 17:13:06,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-18 17:13:06,125 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) [2024-11-18 17:13:06,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 797 transitions. [2024-11-18 17:13:06,127 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 797 transitions. Word has length 177 [2024-11-18 17:13:06,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:06,127 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 797 transitions. [2024-11-18 17:13:06,127 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) [2024-11-18 17:13:06,127 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 797 transitions. [2024-11-18 17:13:06,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-18 17:13:06,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:06,128 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] [2024-11-18 17:13:06,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 17:13:06,128 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:06,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:06,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1746780789, now seen corresponding path program 1 times [2024-11-18 17:13:06,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:06,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674601074] [2024-11-18 17:13:06,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:06,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:06,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:06,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674601074] [2024-11-18 17:13:06,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674601074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:06,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:06,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:06,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839110822] [2024-11-18 17:13:06,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:06,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:06,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:06,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:06,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:06,508 INFO L87 Difference]: Start difference. First operand 555 states and 797 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 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) [2024-11-18 17:13:06,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:06,651 INFO L93 Difference]: Finished difference Result 1008 states and 1442 transitions. [2024-11-18 17:13:06,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:06,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 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 [2024-11-18 17:13:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:06,653 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:13:06,653 INFO L226 Difference]: Without dead ends: 555 [2024-11-18 17:13:06,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:06,654 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 660 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:06,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 1453 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:06,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-18 17:13:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-18 17:13:06,668 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) [2024-11-18 17:13:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 796 transitions. [2024-11-18 17:13:06,669 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 796 transitions. Word has length 178 [2024-11-18 17:13:06,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:06,670 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 796 transitions. [2024-11-18 17:13:06,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 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) [2024-11-18 17:13:06,670 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 796 transitions. [2024-11-18 17:13:06,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 17:13:06,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:06,671 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] [2024-11-18 17:13:06,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 17:13:06,671 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:06,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:06,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1510249066, now seen corresponding path program 1 times [2024-11-18 17:13:06,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:06,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242392791] [2024-11-18 17:13:06,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:06,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:07,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:07,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:07,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242392791] [2024-11-18 17:13:07,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242392791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:07,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:07,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:07,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524208648] [2024-11-18 17:13:07,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:07,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:07,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:07,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:07,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:07,102 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) [2024-11-18 17:13:07,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:07,238 INFO L93 Difference]: Finished difference Result 1008 states and 1440 transitions. [2024-11-18 17:13:07,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:07,239 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 [2024-11-18 17:13:07,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:07,241 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 17:13:07,241 INFO L226 Difference]: Without dead ends: 555 [2024-11-18 17:13:07,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:07,242 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 659 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:07,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1453 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:07,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-18 17:13:07,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-18 17:13:07,250 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) [2024-11-18 17:13:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 795 transitions. [2024-11-18 17:13:07,251 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 795 transitions. Word has length 179 [2024-11-18 17:13:07,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:07,251 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 795 transitions. [2024-11-18 17:13:07,252 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) [2024-11-18 17:13:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 795 transitions. [2024-11-18 17:13:07,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-18 17:13:07,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:07,253 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] [2024-11-18 17:13:07,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 17:13:07,253 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:07,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:07,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1600751754, now seen corresponding path program 1 times [2024-11-18 17:13:07,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:07,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308113780] [2024-11-18 17:13:07,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:07,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:08,006 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:08,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:08,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308113780] [2024-11-18 17:13:08,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308113780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:08,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:08,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:08,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995690796] [2024-11-18 17:13:08,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:08,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:08,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:08,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:08,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:08,012 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) [2024-11-18 17:13:08,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:08,592 INFO L93 Difference]: Finished difference Result 1010 states and 1441 transitions. [2024-11-18 17:13:08,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:13:08,592 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 [2024-11-18 17:13:08,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:08,598 INFO L225 Difference]: With dead ends: 1010 [2024-11-18 17:13:08,598 INFO L226 Difference]: Without dead ends: 557 [2024-11-18 17:13:08,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:08,599 INFO L432 NwaCegarLoop]: 599 mSDtfsCounter, 690 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:08,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1776 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:13:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-18 17:13:08,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 556. [2024-11-18 17:13:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4337568058076224) internal successors, (790), 551 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) [2024-11-18 17:13:08,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 796 transitions. [2024-11-18 17:13:08,632 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 796 transitions. Word has length 180 [2024-11-18 17:13:08,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:08,633 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 796 transitions. [2024-11-18 17:13:08,633 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) [2024-11-18 17:13:08,633 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 796 transitions. [2024-11-18 17:13:08,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-18 17:13:08,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:08,634 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, 1, 1, 1, 1, 1] [2024-11-18 17:13:08,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 17:13:08,635 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:08,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:08,635 INFO L85 PathProgramCache]: Analyzing trace with hash -707826991, now seen corresponding path program 1 times [2024-11-18 17:13:08,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:08,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757575537] [2024-11-18 17:13:08,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:08,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:09,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:09,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757575537] [2024-11-18 17:13:09,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757575537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:09,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:09,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 17:13:09,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69547345] [2024-11-18 17:13:09,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:09,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 17:13:09,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:09,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 17:13:09,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:09,214 INFO L87 Difference]: Start difference. First operand 556 states and 796 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2024-11-18 17:13:09,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:09,568 INFO L93 Difference]: Finished difference Result 1079 states and 1515 transitions. [2024-11-18 17:13:09,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 17:13:09,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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 [2024-11-18 17:13:09,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:09,570 INFO L225 Difference]: With dead ends: 1079 [2024-11-18 17:13:09,570 INFO L226 Difference]: Without dead ends: 621 [2024-11-18 17:13:09,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 17:13:09,571 INFO L432 NwaCegarLoop]: 830 mSDtfsCounter, 73 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 3885 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:09,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 3885 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:13:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-18 17:13:09,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 556. [2024-11-18 17:13:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4319419237749547) internal successors, (789), 551 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) [2024-11-18 17:13:09,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 795 transitions. [2024-11-18 17:13:09,581 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 795 transitions. Word has length 180 [2024-11-18 17:13:09,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:09,582 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 795 transitions. [2024-11-18 17:13:09,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 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) [2024-11-18 17:13:09,582 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 795 transitions. [2024-11-18 17:13:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-18 17:13:09,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:09,583 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] [2024-11-18 17:13:09,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 17:13:09,583 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:09,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:09,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1196109242, now seen corresponding path program 1 times [2024-11-18 17:13:09,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:09,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845763991] [2024-11-18 17:13:09,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:09,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:10,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 17:13:10,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:10,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845763991] [2024-11-18 17:13:10,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845763991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:10,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:10,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 17:13:10,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524222332] [2024-11-18 17:13:10,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:10,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 17:13:10,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 17:13:10,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:10,366 INFO L87 Difference]: Start difference. First operand 556 states and 795 transitions. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 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) [2024-11-18 17:13:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:10,462 INFO L93 Difference]: Finished difference Result 1165 states and 1640 transitions. [2024-11-18 17:13:10,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:13:10,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 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 [2024-11-18 17:13:10,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:10,465 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:10,465 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:10,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 17:13:10,466 INFO L432 NwaCegarLoop]: 776 mSDtfsCounter, 1134 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:10,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 3098 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:10,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:10,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.399715504978663) internal successors, (984), 703 states have internal predecessors, (984), 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) [2024-11-18 17:13:10,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 996 transitions. [2024-11-18 17:13:10,485 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 996 transitions. Word has length 181 [2024-11-18 17:13:10,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:10,485 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 996 transitions. [2024-11-18 17:13:10,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 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) [2024-11-18 17:13:10,486 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 996 transitions. [2024-11-18 17:13:10,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-18 17:13:10,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:10,488 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, 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] [2024-11-18 17:13:10,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 17:13:10,488 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:10,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:10,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1499686982, now seen corresponding path program 1 times [2024-11-18 17:13:10,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:10,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252956338] [2024-11-18 17:13:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:10,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:11,282 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:11,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:11,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252956338] [2024-11-18 17:13:11,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252956338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:11,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:11,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:11,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896309657] [2024-11-18 17:13:11,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:11,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:11,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:11,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:11,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:11,286 INFO L87 Difference]: Start difference. First operand 711 states and 996 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) [2024-11-18 17:13:11,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:11,405 INFO L93 Difference]: Finished difference Result 1165 states and 1639 transitions. [2024-11-18 17:13:11,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:11,406 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 [2024-11-18 17:13:11,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:11,408 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:11,408 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:11,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:11,411 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 724 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:11,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1451 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:11,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:11,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3982930298719773) internal successors, (983), 703 states have internal predecessors, (983), 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) [2024-11-18 17:13:11,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 995 transitions. [2024-11-18 17:13:11,427 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 995 transitions. Word has length 448 [2024-11-18 17:13:11,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:11,428 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 995 transitions. [2024-11-18 17:13:11,428 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) [2024-11-18 17:13:11,428 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 995 transitions. [2024-11-18 17:13:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-18 17:13:11,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:11,430 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, 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] [2024-11-18 17:13:11,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 17:13:11,431 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:11,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:11,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1398521340, now seen corresponding path program 1 times [2024-11-18 17:13:11,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:11,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625625327] [2024-11-18 17:13:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:11,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:12,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:12,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625625327] [2024-11-18 17:13:12,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625625327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:12,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:12,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:12,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852649326] [2024-11-18 17:13:12,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:12,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:12,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:12,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:12,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:12,200 INFO L87 Difference]: Start difference. First operand 711 states and 995 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) [2024-11-18 17:13:12,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:12,317 INFO L93 Difference]: Finished difference Result 1165 states and 1637 transitions. [2024-11-18 17:13:12,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:12,318 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 [2024-11-18 17:13:12,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:12,320 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:12,320 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:12,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:12,322 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1309 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:12,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1444 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:12,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:12,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:12,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3968705547652915) internal successors, (982), 703 states have internal predecessors, (982), 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) [2024-11-18 17:13:12,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 994 transitions. [2024-11-18 17:13:12,337 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 994 transitions. Word has length 449 [2024-11-18 17:13:12,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:12,338 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 994 transitions. [2024-11-18 17:13:12,338 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) [2024-11-18 17:13:12,338 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 994 transitions. [2024-11-18 17:13:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-11-18 17:13:12,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:12,341 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, 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] [2024-11-18 17:13:12,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 17:13:12,342 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:12,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:12,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1067649967, now seen corresponding path program 1 times [2024-11-18 17:13:12,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:12,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859209688] [2024-11-18 17:13:12,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:12,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:13,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:13,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859209688] [2024-11-18 17:13:13,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859209688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:13,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:13,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:13,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124879271] [2024-11-18 17:13:13,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:13,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:13,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:13,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:13,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:13,168 INFO L87 Difference]: Start difference. First operand 711 states and 994 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) [2024-11-18 17:13:13,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:13,293 INFO L93 Difference]: Finished difference Result 1165 states and 1635 transitions. [2024-11-18 17:13:13,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:13,294 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 [2024-11-18 17:13:13,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:13,296 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:13,296 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:13,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:13,298 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 708 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:13,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1451 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:13,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:13,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.395448079658606) internal successors, (981), 703 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) [2024-11-18 17:13:13,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 993 transitions. [2024-11-18 17:13:13,322 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 993 transitions. Word has length 450 [2024-11-18 17:13:13,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:13,322 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 993 transitions. [2024-11-18 17:13:13,323 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) [2024-11-18 17:13:13,323 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 993 transitions. [2024-11-18 17:13:13,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-11-18 17:13:13,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:13,328 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, 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] [2024-11-18 17:13:13,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 17:13:13,328 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:13,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:13,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1809101871, now seen corresponding path program 1 times [2024-11-18 17:13:13,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:13,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710903268] [2024-11-18 17:13:13,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:13,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:14,321 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:14,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:14,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710903268] [2024-11-18 17:13:14,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710903268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:14,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:14,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:14,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769051895] [2024-11-18 17:13:14,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:14,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:14,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:14,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:14,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:14,325 INFO L87 Difference]: Start difference. First operand 711 states and 993 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) [2024-11-18 17:13:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:14,438 INFO L93 Difference]: Finished difference Result 1165 states and 1633 transitions. [2024-11-18 17:13:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:14,439 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 [2024-11-18 17:13:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:14,441 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:14,441 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:14,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:14,442 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1277 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:14,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1444 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:14,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:14,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3940256045519204) internal successors, (980), 703 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) [2024-11-18 17:13:14,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 992 transitions. [2024-11-18 17:13:14,461 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 992 transitions. Word has length 451 [2024-11-18 17:13:14,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:14,462 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 992 transitions. [2024-11-18 17:13:14,462 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) [2024-11-18 17:13:14,462 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 992 transitions. [2024-11-18 17:13:14,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-18 17:13:14,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:14,467 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, 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] [2024-11-18 17:13:14,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-18 17:13:14,468 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:14,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:14,468 INFO L85 PathProgramCache]: Analyzing trace with hash 30466852, now seen corresponding path program 1 times [2024-11-18 17:13:14,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:14,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827649265] [2024-11-18 17:13:14,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:14,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:15,163 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:15,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:15,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827649265] [2024-11-18 17:13:15,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827649265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:15,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:15,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:15,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621279356] [2024-11-18 17:13:15,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:15,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:15,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:15,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:15,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:15,166 INFO L87 Difference]: Start difference. First operand 711 states and 992 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) [2024-11-18 17:13:15,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:15,270 INFO L93 Difference]: Finished difference Result 1165 states and 1631 transitions. [2024-11-18 17:13:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:15,270 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 [2024-11-18 17:13:15,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:15,272 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:15,273 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:15,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:15,274 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1261 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:15,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 1444 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:15,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:15,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:15,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3926031294452348) internal successors, (979), 703 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) [2024-11-18 17:13:15,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 991 transitions. [2024-11-18 17:13:15,286 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 991 transitions. Word has length 452 [2024-11-18 17:13:15,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:15,287 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 991 transitions. [2024-11-18 17:13:15,287 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) [2024-11-18 17:13:15,287 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 991 transitions. [2024-11-18 17:13:15,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-18 17:13:15,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:15,289 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, 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] [2024-11-18 17:13:15,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-18 17:13:15,290 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:15,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:15,290 INFO L85 PathProgramCache]: Analyzing trace with hash -220474074, now seen corresponding path program 1 times [2024-11-18 17:13:15,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:15,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942562763] [2024-11-18 17:13:15,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:15,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:15,906 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:15,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:15,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942562763] [2024-11-18 17:13:15,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942562763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:15,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:15,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:15,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575753532] [2024-11-18 17:13:15,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:15,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:15,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:15,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:15,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:15,910 INFO L87 Difference]: Start difference. First operand 711 states and 991 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) [2024-11-18 17:13:16,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:16,022 INFO L93 Difference]: Finished difference Result 1165 states and 1629 transitions. [2024-11-18 17:13:16,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:16,023 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 [2024-11-18 17:13:16,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:16,025 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:16,025 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:16,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:16,029 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 684 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:16,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1451 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:16,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.391180654338549) internal successors, (978), 703 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) [2024-11-18 17:13:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 990 transitions. [2024-11-18 17:13:16,045 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 990 transitions. Word has length 453 [2024-11-18 17:13:16,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:16,046 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 990 transitions. [2024-11-18 17:13:16,046 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) [2024-11-18 17:13:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 990 transitions. [2024-11-18 17:13:16,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-18 17:13:16,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:16,048 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, 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] [2024-11-18 17:13:16,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-18 17:13:16,048 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:16,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2017960423, now seen corresponding path program 1 times [2024-11-18 17:13:16,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:16,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54878400] [2024-11-18 17:13:16,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:16,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:16,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:16,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54878400] [2024-11-18 17:13:16,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54878400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:16,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:16,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:16,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566657290] [2024-11-18 17:13:16,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:16,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:16,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:16,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:16,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:16,700 INFO L87 Difference]: Start difference. First operand 711 states and 990 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) [2024-11-18 17:13:16,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:16,803 INFO L93 Difference]: Finished difference Result 1165 states and 1627 transitions. [2024-11-18 17:13:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:16,803 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 [2024-11-18 17:13:16,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:16,806 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:16,806 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:16,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:16,807 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 676 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:16,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 1451 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:16,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:16,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3897581792318634) internal successors, (977), 703 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) [2024-11-18 17:13:16,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 989 transitions. [2024-11-18 17:13:16,821 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 989 transitions. Word has length 454 [2024-11-18 17:13:16,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:16,821 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 989 transitions. [2024-11-18 17:13:16,822 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) [2024-11-18 17:13:16,822 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 989 transitions. [2024-11-18 17:13:16,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-18 17:13:16,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:16,824 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, 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] [2024-11-18 17:13:16,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-18 17:13:16,824 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:16,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:16,825 INFO L85 PathProgramCache]: Analyzing trace with hash -162424325, now seen corresponding path program 1 times [2024-11-18 17:13:16,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:16,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723388758] [2024-11-18 17:13:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:16,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:17,482 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:17,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:17,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723388758] [2024-11-18 17:13:17,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723388758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:17,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:17,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:17,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692689892] [2024-11-18 17:13:17,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:17,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:17,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:17,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:17,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:17,485 INFO L87 Difference]: Start difference. First operand 711 states and 989 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) [2024-11-18 17:13:17,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:17,586 INFO L93 Difference]: Finished difference Result 1165 states and 1625 transitions. [2024-11-18 17:13:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:17,587 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 [2024-11-18 17:13:17,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:17,589 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:17,589 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:17,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:17,590 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1213 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:17,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 1444 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:17,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:17,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3883357041251778) internal successors, (976), 703 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) [2024-11-18 17:13:17,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 988 transitions. [2024-11-18 17:13:17,602 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 988 transitions. Word has length 455 [2024-11-18 17:13:17,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:17,602 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 988 transitions. [2024-11-18 17:13:17,603 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) [2024-11-18 17:13:17,603 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 988 transitions. [2024-11-18 17:13:17,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-18 17:13:17,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:17,605 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, 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] [2024-11-18 17:13:17,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-18 17:13:17,605 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:17,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:17,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1693729650, now seen corresponding path program 1 times [2024-11-18 17:13:17,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:17,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932523868] [2024-11-18 17:13:17,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:17,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:18,242 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:18,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:18,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932523868] [2024-11-18 17:13:18,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932523868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:18,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:18,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:18,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595019130] [2024-11-18 17:13:18,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:18,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:18,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:18,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:18,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:18,245 INFO L87 Difference]: Start difference. First operand 711 states and 988 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) [2024-11-18 17:13:18,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:18,314 INFO L93 Difference]: Finished difference Result 1165 states and 1623 transitions. [2024-11-18 17:13:18,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:18,315 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 [2024-11-18 17:13:18,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:18,317 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:18,317 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:18,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:18,318 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 1182 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:18,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 1492 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:18,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:18,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:18,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3869132290184922) internal successors, (975), 703 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) [2024-11-18 17:13:18,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 987 transitions. [2024-11-18 17:13:18,330 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 987 transitions. Word has length 456 [2024-11-18 17:13:18,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:18,330 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 987 transitions. [2024-11-18 17:13:18,330 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) [2024-11-18 17:13:18,330 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 987 transitions. [2024-11-18 17:13:18,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-18 17:13:18,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:18,332 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, 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] [2024-11-18 17:13:18,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-18 17:13:18,333 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:18,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:18,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1276172880, now seen corresponding path program 1 times [2024-11-18 17:13:18,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:18,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647200211] [2024-11-18 17:13:18,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:18,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:19,023 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:19,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:19,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647200211] [2024-11-18 17:13:19,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647200211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:19,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:19,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:19,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125588058] [2024-11-18 17:13:19,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:19,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:19,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:19,025 INFO L87 Difference]: Start difference. First operand 711 states and 987 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) [2024-11-18 17:13:19,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:19,093 INFO L93 Difference]: Finished difference Result 1165 states and 1621 transitions. [2024-11-18 17:13:19,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:19,094 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 [2024-11-18 17:13:19,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:19,096 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:19,096 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:19,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:19,097 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 637 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:19,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 1499 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:19,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:19,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:19,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3854907539118066) internal successors, (974), 703 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) [2024-11-18 17:13:19,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 986 transitions. [2024-11-18 17:13:19,109 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 986 transitions. Word has length 457 [2024-11-18 17:13:19,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:19,110 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 986 transitions. [2024-11-18 17:13:19,110 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) [2024-11-18 17:13:19,110 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 986 transitions. [2024-11-18 17:13:19,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-18 17:13:19,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:19,112 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, 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] [2024-11-18 17:13:19,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-18 17:13:19,112 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:19,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:19,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1956462211, now seen corresponding path program 1 times [2024-11-18 17:13:19,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:19,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025048295] [2024-11-18 17:13:19,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:19,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:19,745 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:19,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:19,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025048295] [2024-11-18 17:13:19,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025048295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:19,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:19,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:19,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186546559] [2024-11-18 17:13:19,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:19,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:19,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:19,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:19,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:19,748 INFO L87 Difference]: Start difference. First operand 711 states and 986 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) [2024-11-18 17:13:19,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:19,814 INFO L93 Difference]: Finished difference Result 1165 states and 1619 transitions. [2024-11-18 17:13:19,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:19,816 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 [2024-11-18 17:13:19,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:19,817 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:19,818 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:19,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:19,819 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 1150 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:19,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 1492 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:19,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:19,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:19,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3840682788051208) internal successors, (973), 703 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) [2024-11-18 17:13:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 985 transitions. [2024-11-18 17:13:19,831 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 985 transitions. Word has length 458 [2024-11-18 17:13:19,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:19,831 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 985 transitions. [2024-11-18 17:13:19,831 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) [2024-11-18 17:13:19,832 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 985 transitions. [2024-11-18 17:13:19,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-18 17:13:19,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:19,834 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, 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] [2024-11-18 17:13:19,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-18 17:13:19,834 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:19,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:19,834 INFO L85 PathProgramCache]: Analyzing trace with hash 675141157, now seen corresponding path program 1 times [2024-11-18 17:13:19,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:19,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066001689] [2024-11-18 17:13:19,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:19,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:20,477 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:20,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:20,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066001689] [2024-11-18 17:13:20,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066001689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:20,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:20,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:20,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377711324] [2024-11-18 17:13:20,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:20,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:20,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:20,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:20,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:20,479 INFO L87 Difference]: Start difference. First operand 711 states and 985 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) [2024-11-18 17:13:20,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:20,545 INFO L93 Difference]: Finished difference Result 1165 states and 1617 transitions. [2024-11-18 17:13:20,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:20,545 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 [2024-11-18 17:13:20,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:20,547 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:20,547 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:20,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:20,548 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 1134 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:20,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 1492 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:20,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:20,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:20,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3826458036984353) internal successors, (972), 703 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) [2024-11-18 17:13:20,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 984 transitions. [2024-11-18 17:13:20,563 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 984 transitions. Word has length 459 [2024-11-18 17:13:20,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:20,563 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 984 transitions. [2024-11-18 17:13:20,564 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) [2024-11-18 17:13:20,564 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 984 transitions. [2024-11-18 17:13:20,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-18 17:13:20,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:20,566 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, 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] [2024-11-18 17:13:20,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-18 17:13:20,566 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:20,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:20,566 INFO L85 PathProgramCache]: Analyzing trace with hash -60873736, now seen corresponding path program 1 times [2024-11-18 17:13:20,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:20,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466041250] [2024-11-18 17:13:20,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:21,307 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:21,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:21,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466041250] [2024-11-18 17:13:21,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466041250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:21,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:21,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:21,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68673622] [2024-11-18 17:13:21,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:21,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:21,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:21,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:21,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:21,310 INFO L87 Difference]: Start difference. First operand 711 states and 984 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) [2024-11-18 17:13:21,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:21,352 INFO L93 Difference]: Finished difference Result 1165 states and 1615 transitions. [2024-11-18 17:13:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:21,352 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 [2024-11-18 17:13:21,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:21,354 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:21,354 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:21,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:21,355 INFO L432 NwaCegarLoop]: 757 mSDtfsCounter, 1111 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:21,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1516 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:21,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:21,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3812233285917497) internal successors, (971), 703 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) [2024-11-18 17:13:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 983 transitions. [2024-11-18 17:13:21,367 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 983 transitions. Word has length 460 [2024-11-18 17:13:21,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:21,368 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 983 transitions. [2024-11-18 17:13:21,368 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) [2024-11-18 17:13:21,368 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 983 transitions. [2024-11-18 17:13:21,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-18 17:13:21,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:21,370 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, 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] [2024-11-18 17:13:21,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-18 17:13:21,371 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:21,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:21,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1516450438, now seen corresponding path program 1 times [2024-11-18 17:13:21,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:21,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352495154] [2024-11-18 17:13:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:21,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:22,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:22,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352495154] [2024-11-18 17:13:22,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352495154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:22,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:22,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:22,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547246819] [2024-11-18 17:13:22,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:22,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:22,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:22,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:22,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:22,115 INFO L87 Difference]: Start difference. First operand 711 states and 983 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) [2024-11-18 17:13:22,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:22,165 INFO L93 Difference]: Finished difference Result 1165 states and 1613 transitions. [2024-11-18 17:13:22,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:22,165 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 [2024-11-18 17:13:22,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:22,167 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:22,168 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:22,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:22,169 INFO L432 NwaCegarLoop]: 757 mSDtfsCounter, 1095 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:22,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 1516 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:22,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:22,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:22,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.379800853485064) internal successors, (970), 703 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) [2024-11-18 17:13:22,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 982 transitions. [2024-11-18 17:13:22,182 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 982 transitions. Word has length 461 [2024-11-18 17:13:22,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:22,183 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 982 transitions. [2024-11-18 17:13:22,183 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) [2024-11-18 17:13:22,183 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 982 transitions. [2024-11-18 17:13:22,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-18 17:13:22,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:22,185 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, 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] [2024-11-18 17:13:22,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-18 17:13:22,185 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:22,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:22,186 INFO L85 PathProgramCache]: Analyzing trace with hash 157527277, now seen corresponding path program 1 times [2024-11-18 17:13:22,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:22,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362510120] [2024-11-18 17:13:22,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:22,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:23,025 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:23,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:23,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362510120] [2024-11-18 17:13:23,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362510120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:23,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:23,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:23,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652413832] [2024-11-18 17:13:23,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:23,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:23,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:23,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:23,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:23,028 INFO L87 Difference]: Start difference. First operand 711 states and 982 transitions. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 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) [2024-11-18 17:13:23,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:23,291 INFO L93 Difference]: Finished difference Result 1165 states and 1611 transitions. [2024-11-18 17:13:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:23,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 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 [2024-11-18 17:13:23,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:23,293 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:23,293 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:23,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:23,295 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 1072 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:23,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 1158 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:13:23,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:23,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:23,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3783783783783783) internal successors, (969), 703 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) [2024-11-18 17:13:23,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 981 transitions. [2024-11-18 17:13:23,307 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 981 transitions. Word has length 462 [2024-11-18 17:13:23,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:23,307 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 981 transitions. [2024-11-18 17:13:23,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 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) [2024-11-18 17:13:23,307 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 981 transitions. [2024-11-18 17:13:23,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-18 17:13:23,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:23,310 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, 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] [2024-11-18 17:13:23,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-18 17:13:23,310 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:23,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:23,310 INFO L85 PathProgramCache]: Analyzing trace with hash 630325327, now seen corresponding path program 1 times [2024-11-18 17:13:23,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:23,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379219118] [2024-11-18 17:13:23,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:23,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:24,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:24,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379219118] [2024-11-18 17:13:24,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379219118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:24,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:24,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:24,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133140768] [2024-11-18 17:13:24,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:24,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:24,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:24,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:24,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:24,631 INFO L87 Difference]: Start difference. First operand 711 states and 981 transitions. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 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) [2024-11-18 17:13:24,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:24,675 INFO L93 Difference]: Finished difference Result 1165 states and 1609 transitions. [2024-11-18 17:13:24,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:24,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 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 [2024-11-18 17:13:24,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:24,677 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:24,678 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:24,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:24,679 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 496 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:24,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1514 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:24,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:24,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3769559032716927) internal successors, (968), 703 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) [2024-11-18 17:13:24,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 980 transitions. [2024-11-18 17:13:24,696 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 980 transitions. Word has length 463 [2024-11-18 17:13:24,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:24,697 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 980 transitions. [2024-11-18 17:13:24,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 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) [2024-11-18 17:13:24,697 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 980 transitions. [2024-11-18 17:13:24,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-18 17:13:24,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:24,699 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, 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] [2024-11-18 17:13:24,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-18 17:13:24,699 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:24,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:24,700 INFO L85 PathProgramCache]: Analyzing trace with hash 56160607, now seen corresponding path program 1 times [2024-11-18 17:13:24,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:24,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256367994] [2024-11-18 17:13:24,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:24,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:26,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:26,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256367994] [2024-11-18 17:13:26,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256367994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:26,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:26,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:26,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928424035] [2024-11-18 17:13:26,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:26,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:26,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:26,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:26,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:26,257 INFO L87 Difference]: Start difference. First operand 711 states and 980 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) [2024-11-18 17:13:26,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:26,343 INFO L93 Difference]: Finished difference Result 1165 states and 1607 transitions. [2024-11-18 17:13:26,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:26,344 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 [2024-11-18 17:13:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:26,345 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:26,345 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:26,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:26,346 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 1177 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:26,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 1484 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:26,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:26,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:26,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3755334281650071) internal successors, (967), 703 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) [2024-11-18 17:13:26,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 979 transitions. [2024-11-18 17:13:26,358 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 979 transitions. Word has length 464 [2024-11-18 17:13:26,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:26,358 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 979 transitions. [2024-11-18 17:13:26,359 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) [2024-11-18 17:13:26,359 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 979 transitions. [2024-11-18 17:13:26,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-18 17:13:26,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:26,363 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, 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] [2024-11-18 17:13:26,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-18 17:13:26,363 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:26,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:26,363 INFO L85 PathProgramCache]: Analyzing trace with hash -868518769, now seen corresponding path program 1 times [2024-11-18 17:13:26,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:26,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379817470] [2024-11-18 17:13:26,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:26,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:27,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:27,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379817470] [2024-11-18 17:13:27,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379817470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:27,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:27,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:27,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881839306] [2024-11-18 17:13:27,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:27,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:27,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:27,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:27,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:27,589 INFO L87 Difference]: Start difference. First operand 711 states and 979 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 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) [2024-11-18 17:13:27,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:27,661 INFO L93 Difference]: Finished difference Result 1165 states and 1605 transitions. [2024-11-18 17:13:27,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:27,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 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 [2024-11-18 17:13:27,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:27,662 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:27,663 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:27,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:27,664 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 654 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:27,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 1491 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:27,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:27,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:27,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3741109530583215) internal successors, (966), 703 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) [2024-11-18 17:13:27,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 978 transitions. [2024-11-18 17:13:27,676 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 978 transitions. Word has length 465 [2024-11-18 17:13:27,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:27,677 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 978 transitions. [2024-11-18 17:13:27,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 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) [2024-11-18 17:13:27,677 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 978 transitions. [2024-11-18 17:13:27,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-18 17:13:27,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:27,679 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, 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] [2024-11-18 17:13:27,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-18 17:13:27,680 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:27,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:27,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1406863122, now seen corresponding path program 1 times [2024-11-18 17:13:27,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:27,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442212623] [2024-11-18 17:13:27,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:27,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:28,916 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:28,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:28,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442212623] [2024-11-18 17:13:28,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442212623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:28,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:28,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:28,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837553184] [2024-11-18 17:13:28,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:28,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:28,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:28,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:28,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:28,920 INFO L87 Difference]: Start difference. First operand 711 states and 978 transitions. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 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) [2024-11-18 17:13:28,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:28,991 INFO L93 Difference]: Finished difference Result 1165 states and 1603 transitions. [2024-11-18 17:13:28,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:28,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 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 [2024-11-18 17:13:28,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:28,993 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:28,993 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:28,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:28,995 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 505 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:28,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1484 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:28,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:29,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:29,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.372688477951636) internal successors, (965), 703 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) [2024-11-18 17:13:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 977 transitions. [2024-11-18 17:13:29,007 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 977 transitions. Word has length 466 [2024-11-18 17:13:29,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:29,008 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 977 transitions. [2024-11-18 17:13:29,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 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) [2024-11-18 17:13:29,008 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 977 transitions. [2024-11-18 17:13:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-18 17:13:29,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:29,010 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, 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] [2024-11-18 17:13:29,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-18 17:13:29,011 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:29,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:29,011 INFO L85 PathProgramCache]: Analyzing trace with hash 532574656, now seen corresponding path program 1 times [2024-11-18 17:13:29,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:29,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467574191] [2024-11-18 17:13:29,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:29,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:30,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:30,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467574191] [2024-11-18 17:13:30,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467574191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:30,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:30,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:30,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452039609] [2024-11-18 17:13:30,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:30,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:30,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:30,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:30,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:30,205 INFO L87 Difference]: Start difference. First operand 711 states and 977 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) [2024-11-18 17:13:30,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:30,328 INFO L93 Difference]: Finished difference Result 1165 states and 1601 transitions. [2024-11-18 17:13:30,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:30,329 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 [2024-11-18 17:13:30,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:30,330 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:30,330 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:30,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:30,331 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1212 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:30,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 1422 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:30,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:30,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3712660028449501) internal successors, (964), 703 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) [2024-11-18 17:13:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 976 transitions. [2024-11-18 17:13:30,343 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 976 transitions. Word has length 467 [2024-11-18 17:13:30,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:30,343 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 976 transitions. [2024-11-18 17:13:30,343 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) [2024-11-18 17:13:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 976 transitions. [2024-11-18 17:13:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-18 17:13:30,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:30,346 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, 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] [2024-11-18 17:13:30,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-18 17:13:30,346 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:30,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash -670725104, now seen corresponding path program 1 times [2024-11-18 17:13:30,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:30,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304915964] [2024-11-18 17:13:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:30,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:31,468 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:31,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:31,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304915964] [2024-11-18 17:13:31,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304915964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:31,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:31,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:31,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851157192] [2024-11-18 17:13:31,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:31,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:31,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:31,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:31,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:31,471 INFO L87 Difference]: Start difference. First operand 711 states and 976 transitions. Second operand has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 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) [2024-11-18 17:13:31,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:31,588 INFO L93 Difference]: Finished difference Result 1165 states and 1599 transitions. [2024-11-18 17:13:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:31,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 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 468 [2024-11-18 17:13:31,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:31,590 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:31,591 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:31,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:31,591 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 636 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:31,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1429 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:31,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:31,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:31,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3698435277382646) internal successors, (963), 703 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) [2024-11-18 17:13:31,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 975 transitions. [2024-11-18 17:13:31,602 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 975 transitions. Word has length 468 [2024-11-18 17:13:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:31,602 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 975 transitions. [2024-11-18 17:13:31,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 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) [2024-11-18 17:13:31,603 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 975 transitions. [2024-11-18 17:13:31,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-18 17:13:31,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:31,605 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, 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] [2024-11-18 17:13:31,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-18 17:13:31,605 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:31,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:31,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1840507695, now seen corresponding path program 1 times [2024-11-18 17:13:31,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:31,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104101261] [2024-11-18 17:13:31,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:31,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:32,860 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:32,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:32,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104101261] [2024-11-18 17:13:32,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104101261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:32,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:32,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:32,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147826510] [2024-11-18 17:13:32,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:32,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:32,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:32,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:32,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:32,862 INFO L87 Difference]: Start difference. First operand 711 states and 975 transitions. Second operand has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 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) [2024-11-18 17:13:32,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:32,951 INFO L93 Difference]: Finished difference Result 1165 states and 1597 transitions. [2024-11-18 17:13:32,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:32,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 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 469 [2024-11-18 17:13:32,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:32,953 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:32,953 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:32,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:32,954 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 558 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:32,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1422 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:32,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:32,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.368421052631579) internal successors, (962), 703 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) [2024-11-18 17:13:32,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 974 transitions. [2024-11-18 17:13:32,966 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 974 transitions. Word has length 469 [2024-11-18 17:13:32,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:32,966 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 974 transitions. [2024-11-18 17:13:32,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 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) [2024-11-18 17:13:32,966 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 974 transitions. [2024-11-18 17:13:32,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-18 17:13:32,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:32,968 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, 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] [2024-11-18 17:13:32,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-18 17:13:32,969 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:32,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:32,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1019417537, now seen corresponding path program 1 times [2024-11-18 17:13:32,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:32,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726283138] [2024-11-18 17:13:32,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:32,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:34,093 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:34,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:34,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726283138] [2024-11-18 17:13:34,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726283138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:34,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:34,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:34,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109173742] [2024-11-18 17:13:34,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:34,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:34,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:34,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:34,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:34,095 INFO L87 Difference]: Start difference. First operand 711 states and 974 transitions. Second operand has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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) [2024-11-18 17:13:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:34,206 INFO L93 Difference]: Finished difference Result 1165 states and 1595 transitions. [2024-11-18 17:13:34,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:34,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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 470 [2024-11-18 17:13:34,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:34,208 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:34,208 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:34,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:34,209 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1182 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:34,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 1422 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:34,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:34,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:34,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3669985775248934) internal successors, (961), 703 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) [2024-11-18 17:13:34,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 973 transitions. [2024-11-18 17:13:34,238 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 973 transitions. Word has length 470 [2024-11-18 17:13:34,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:34,238 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 973 transitions. [2024-11-18 17:13:34,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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) [2024-11-18 17:13:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 973 transitions. [2024-11-18 17:13:34,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-18 17:13:34,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:34,241 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:34,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-18 17:13:34,241 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:34,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:34,241 INFO L85 PathProgramCache]: Analyzing trace with hash 2040864098, now seen corresponding path program 1 times [2024-11-18 17:13:34,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:34,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033240477] [2024-11-18 17:13:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:34,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:35,432 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:35,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:35,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033240477] [2024-11-18 17:13:35,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033240477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:35,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:35,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:35,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462600831] [2024-11-18 17:13:35,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:35,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:35,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:35,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:35,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:35,434 INFO L87 Difference]: Start difference. First operand 711 states and 973 transitions. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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) [2024-11-18 17:13:35,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:35,544 INFO L93 Difference]: Finished difference Result 1165 states and 1593 transitions. [2024-11-18 17:13:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:35,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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 471 [2024-11-18 17:13:35,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:35,546 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:35,546 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:35,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:35,547 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1172 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:35,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 1422 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:35,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:35,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:35,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3655761024182076) internal successors, (960), 703 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) [2024-11-18 17:13:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 972 transitions. [2024-11-18 17:13:35,557 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 972 transitions. Word has length 471 [2024-11-18 17:13:35,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:35,558 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 972 transitions. [2024-11-18 17:13:35,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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) [2024-11-18 17:13:35,558 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 972 transitions. [2024-11-18 17:13:35,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-18 17:13:35,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:35,560 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:35,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-18 17:13:35,560 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:35,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:35,560 INFO L85 PathProgramCache]: Analyzing trace with hash -880275730, now seen corresponding path program 1 times [2024-11-18 17:13:35,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:35,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138657047] [2024-11-18 17:13:35,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:35,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:36,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:36,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138657047] [2024-11-18 17:13:36,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138657047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:36,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:36,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:36,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425908436] [2024-11-18 17:13:36,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:36,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:36,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:36,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:36,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:36,740 INFO L87 Difference]: Start difference. First operand 711 states and 972 transitions. Second operand has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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) [2024-11-18 17:13:36,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:36,848 INFO L93 Difference]: Finished difference Result 1165 states and 1591 transitions. [2024-11-18 17:13:36,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:36,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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 472 [2024-11-18 17:13:36,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:36,850 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:36,850 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:36,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:36,851 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 632 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:36,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1429 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:36,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:36,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.364153627311522) internal successors, (959), 703 states have internal predecessors, (959), 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) [2024-11-18 17:13:36,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 971 transitions. [2024-11-18 17:13:36,864 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 971 transitions. Word has length 472 [2024-11-18 17:13:36,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:36,865 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 971 transitions. [2024-11-18 17:13:36,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 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) [2024-11-18 17:13:36,865 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 971 transitions. [2024-11-18 17:13:36,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-18 17:13:36,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:36,868 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:36,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-18 17:13:36,868 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:36,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:36,869 INFO L85 PathProgramCache]: Analyzing trace with hash -985187469, now seen corresponding path program 1 times [2024-11-18 17:13:36,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:36,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599320820] [2024-11-18 17:13:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:38,035 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:38,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:38,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599320820] [2024-11-18 17:13:38,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599320820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:38,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:38,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:13:38,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481873382] [2024-11-18 17:13:38,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:38,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:13:38,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:38,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:13:38,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:13:38,038 INFO L87 Difference]: Start difference. First operand 711 states and 971 transitions. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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) [2024-11-18 17:13:38,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:38,128 INFO L93 Difference]: Finished difference Result 1165 states and 1589 transitions. [2024-11-18 17:13:38,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:13:38,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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 473 [2024-11-18 17:13:38,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:38,130 INFO L225 Difference]: With dead ends: 1165 [2024-11-18 17:13:38,130 INFO L226 Difference]: Without dead ends: 711 [2024-11-18 17:13:38,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:38,131 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 522 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:38,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1422 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:38,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-18 17:13:38,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2024-11-18 17:13:38,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 703 states have (on average 1.3627311522048364) internal successors, (958), 703 states have internal predecessors, (958), 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) [2024-11-18 17:13:38,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 970 transitions. [2024-11-18 17:13:38,141 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 970 transitions. Word has length 473 [2024-11-18 17:13:38,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:38,141 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 970 transitions. [2024-11-18 17:13:38,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 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) [2024-11-18 17:13:38,142 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 970 transitions. [2024-11-18 17:13:38,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-18 17:13:38,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:38,144 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:38,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-18 17:13:38,144 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:38,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:38,144 INFO L85 PathProgramCache]: Analyzing trace with hash -967752675, now seen corresponding path program 1 times [2024-11-18 17:13:38,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:38,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431999586] [2024-11-18 17:13:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:38,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-18 17:13:39,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:39,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431999586] [2024-11-18 17:13:39,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431999586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:39,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:39,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:13:39,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118174154] [2024-11-18 17:13:39,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:39,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:13:39,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:39,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:13:39,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:39,946 INFO L87 Difference]: Start difference. First operand 711 states and 970 transitions. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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) [2024-11-18 17:13:39,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:39,983 INFO L93 Difference]: Finished difference Result 1325 states and 1769 transitions. [2024-11-18 17:13:39,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:13:39,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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 474 [2024-11-18 17:13:39,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:39,985 INFO L225 Difference]: With dead ends: 1325 [2024-11-18 17:13:39,985 INFO L226 Difference]: Without dead ends: 869 [2024-11-18 17:13:39,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:13:39,986 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 19 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3015 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:39,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3015 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:39,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-11-18 17:13:39,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 865. [2024-11-18 17:13:39,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 857 states have (on average 1.3185530921820303) internal successors, (1130), 857 states have internal predecessors, (1130), 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) [2024-11-18 17:13:40,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1142 transitions. [2024-11-18 17:13:40,001 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1142 transitions. Word has length 474 [2024-11-18 17:13:40,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:40,001 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1142 transitions. [2024-11-18 17:13:40,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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) [2024-11-18 17:13:40,002 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1142 transitions. [2024-11-18 17:13:40,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-18 17:13:40,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:40,005 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:40,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-18 17:13:40,005 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:40,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:40,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1244619211, now seen corresponding path program 1 times [2024-11-18 17:13:40,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:40,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772837318] [2024-11-18 17:13:40,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:40,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:41,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:41,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772837318] [2024-11-18 17:13:41,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772837318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:41,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:41,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 17:13:41,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396272312] [2024-11-18 17:13:41,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:41,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 17:13:41,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:41,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 17:13:41,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:41,580 INFO L87 Difference]: Start difference. First operand 865 states and 1142 transitions. Second operand has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 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) [2024-11-18 17:13:41,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:41,923 INFO L93 Difference]: Finished difference Result 1999 states and 2653 transitions. [2024-11-18 17:13:41,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:13:41,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 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 476 [2024-11-18 17:13:41,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:41,926 INFO L225 Difference]: With dead ends: 1999 [2024-11-18 17:13:41,926 INFO L226 Difference]: Without dead ends: 1468 [2024-11-18 17:13:41,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:13:41,928 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 685 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:41,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 2878 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:13:41,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-11-18 17:13:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1352. [2024-11-18 17:13:41,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 1341 states have (on average 1.3154362416107384) internal successors, (1764), 1341 states have internal predecessors, (1764), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 17:13:41,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1782 transitions. [2024-11-18 17:13:41,948 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1782 transitions. Word has length 476 [2024-11-18 17:13:41,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:41,949 INFO L471 AbstractCegarLoop]: Abstraction has 1352 states and 1782 transitions. [2024-11-18 17:13:41,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 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) [2024-11-18 17:13:41,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1782 transitions. [2024-11-18 17:13:41,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-18 17:13:41,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:41,951 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:41,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-18 17:13:41,953 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:41,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:41,953 INFO L85 PathProgramCache]: Analyzing trace with hash 30361493, now seen corresponding path program 1 times [2024-11-18 17:13:41,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:41,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111229772] [2024-11-18 17:13:41,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:41,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:43,884 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 17:13:43,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:43,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111229772] [2024-11-18 17:13:43,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111229772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:43,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:43,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 17:13:43,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930868390] [2024-11-18 17:13:43,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:43,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 17:13:43,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:43,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 17:13:43,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:43,886 INFO L87 Difference]: Start difference. First operand 1352 states and 1782 transitions. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-11-18 17:13:44,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:44,295 INFO L93 Difference]: Finished difference Result 1906 states and 2519 transitions. [2024-11-18 17:13:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:13:44,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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 477 [2024-11-18 17:13:44,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:44,301 INFO L225 Difference]: With dead ends: 1906 [2024-11-18 17:13:44,301 INFO L226 Difference]: Without dead ends: 1375 [2024-11-18 17:13:44,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:13:44,306 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 1028 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:44,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 2256 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 17:13:44,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-11-18 17:13:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1353. [2024-11-18 17:13:44,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 1342 states have (on average 1.3152011922503726) internal successors, (1765), 1342 states have internal predecessors, (1765), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-18 17:13:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1783 transitions. [2024-11-18 17:13:44,382 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1783 transitions. Word has length 477 [2024-11-18 17:13:44,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:44,382 INFO L471 AbstractCegarLoop]: Abstraction has 1353 states and 1783 transitions. [2024-11-18 17:13:44,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-11-18 17:13:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1783 transitions. [2024-11-18 17:13:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-18 17:13:44,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:44,388 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:44,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-18 17:13:44,389 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:44,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:44,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1095729214, now seen corresponding path program 1 times [2024-11-18 17:13:44,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:44,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633045536] [2024-11-18 17:13:44,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:44,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-18 17:13:46,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:46,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633045536] [2024-11-18 17:13:46,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633045536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:46,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:46,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 17:13:46,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459031575] [2024-11-18 17:13:46,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:46,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 17:13:46,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:46,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 17:13:46,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 17:13:46,312 INFO L87 Difference]: Start difference. First operand 1353 states and 1783 transitions. Second operand has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 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) [2024-11-18 17:13:46,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:46,447 INFO L93 Difference]: Finished difference Result 3074 states and 4032 transitions. [2024-11-18 17:13:46,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 17:13:46,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 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 477 [2024-11-18 17:13:46,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:46,451 INFO L225 Difference]: With dead ends: 3074 [2024-11-18 17:13:46,452 INFO L226 Difference]: Without dead ends: 2361 [2024-11-18 17:13:46,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-18 17:13:46,453 INFO L432 NwaCegarLoop]: 1844 mSDtfsCounter, 1139 mSDsluCounter, 7913 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 9757 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:46,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 9757 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:13:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2024-11-18 17:13:46,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 1420. [2024-11-18 17:13:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1406 states have (on average 1.3200568990042674) internal successors, (1856), 1406 states have internal predecessors, (1856), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 17:13:46,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1880 transitions. [2024-11-18 17:13:46,483 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1880 transitions. Word has length 477 [2024-11-18 17:13:46,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:46,484 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 1880 transitions. [2024-11-18 17:13:46,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 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) [2024-11-18 17:13:46,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1880 transitions. [2024-11-18 17:13:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-11-18 17:13:46,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:46,487 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:46,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-18 17:13:46,487 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:46,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:46,488 INFO L85 PathProgramCache]: Analyzing trace with hash 367026472, now seen corresponding path program 1 times [2024-11-18 17:13:46,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:46,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851594154] [2024-11-18 17:13:46,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:46,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:48,221 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-18 17:13:48,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:48,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851594154] [2024-11-18 17:13:48,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851594154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:48,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:48,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 17:13:48,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169833727] [2024-11-18 17:13:48,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:48,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 17:13:48,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:48,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 17:13:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:13:48,225 INFO L87 Difference]: Start difference. First operand 1420 states and 1880 transitions. Second operand has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-18 17:13:48,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:48,485 INFO L93 Difference]: Finished difference Result 2724 states and 3581 transitions. [2024-11-18 17:13:48,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 17:13:48,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 478 [2024-11-18 17:13:48,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:48,488 INFO L225 Difference]: With dead ends: 2724 [2024-11-18 17:13:48,488 INFO L226 Difference]: Without dead ends: 1436 [2024-11-18 17:13:48,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-18 17:13:48,490 INFO L432 NwaCegarLoop]: 782 mSDtfsCounter, 715 mSDsluCounter, 2908 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:48,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 3690 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:13:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2024-11-18 17:13:48,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1428. [2024-11-18 17:13:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1414 states have (on average 1.3154172560113153) internal successors, (1860), 1414 states have internal predecessors, (1860), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 17:13:48,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1884 transitions. [2024-11-18 17:13:48,543 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1884 transitions. Word has length 478 [2024-11-18 17:13:48,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:48,543 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1884 transitions. [2024-11-18 17:13:48,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-18 17:13:48,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1884 transitions. [2024-11-18 17:13:48,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-18 17:13:48,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:48,546 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:48,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-18 17:13:48,546 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:48,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:48,547 INFO L85 PathProgramCache]: Analyzing trace with hash 877228960, now seen corresponding path program 1 times [2024-11-18 17:13:48,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:48,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137450484] [2024-11-18 17:13:48,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:48,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:50,450 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-18 17:13:50,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:50,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137450484] [2024-11-18 17:13:50,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137450484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:50,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:50,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 17:13:50,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203010217] [2024-11-18 17:13:50,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:50,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 17:13:50,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:50,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 17:13:50,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:13:50,452 INFO L87 Difference]: Start difference. First operand 1428 states and 1884 transitions. Second operand has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 17:13:50,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:50,727 INFO L93 Difference]: Finished difference Result 2838 states and 3728 transitions. [2024-11-18 17:13:50,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 17:13:50,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 480 [2024-11-18 17:13:50,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:50,729 INFO L225 Difference]: With dead ends: 2838 [2024-11-18 17:13:50,729 INFO L226 Difference]: Without dead ends: 1444 [2024-11-18 17:13:50,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-18 17:13:50,731 INFO L432 NwaCegarLoop]: 754 mSDtfsCounter, 788 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:50,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 3579 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:13:50,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2024-11-18 17:13:50,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1436. [2024-11-18 17:13:50,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1422 states have (on average 1.310829817158931) internal successors, (1864), 1422 states have internal predecessors, (1864), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 17:13:50,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1888 transitions. [2024-11-18 17:13:50,756 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1888 transitions. Word has length 480 [2024-11-18 17:13:50,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:50,756 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 1888 transitions. [2024-11-18 17:13:50,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 17:13:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1888 transitions. [2024-11-18 17:13:50,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-18 17:13:50,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:50,759 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:50,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-18 17:13:50,759 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:50,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:50,760 INFO L85 PathProgramCache]: Analyzing trace with hash -208955982, now seen corresponding path program 1 times [2024-11-18 17:13:50,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:50,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291868003] [2024-11-18 17:13:50,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:50,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-18 17:13:52,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:52,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291868003] [2024-11-18 17:13:52,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291868003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:52,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:52,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 17:13:52,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855836165] [2024-11-18 17:13:52,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:52,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 17:13:52,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:52,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 17:13:52,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:13:52,567 INFO L87 Difference]: Start difference. First operand 1436 states and 1888 transitions. Second operand has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 17:13:52,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:52,829 INFO L93 Difference]: Finished difference Result 2980 states and 3903 transitions. [2024-11-18 17:13:52,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 17:13:52,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 482 [2024-11-18 17:13:52,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:52,832 INFO L225 Difference]: With dead ends: 2980 [2024-11-18 17:13:52,832 INFO L226 Difference]: Without dead ends: 1452 [2024-11-18 17:13:52,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-18 17:13:52,834 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 844 mSDsluCounter, 2771 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:52,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 3508 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:13:52,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2024-11-18 17:13:52,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1444. [2024-11-18 17:13:52,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1430 states have (on average 1.3062937062937063) internal successors, (1868), 1430 states have internal predecessors, (1868), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-18 17:13:52,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1892 transitions. [2024-11-18 17:13:52,855 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1892 transitions. Word has length 482 [2024-11-18 17:13:52,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:52,856 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 1892 transitions. [2024-11-18 17:13:52,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 17:13:52,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1892 transitions. [2024-11-18 17:13:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-18 17:13:52,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:52,859 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:52,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-18 17:13:52,859 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:52,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:52,860 INFO L85 PathProgramCache]: Analyzing trace with hash -691840160, now seen corresponding path program 1 times [2024-11-18 17:13:52,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:52,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84392311] [2024-11-18 17:13:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:52,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 98 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-18 17:13:54,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:54,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84392311] [2024-11-18 17:13:54,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84392311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 17:13:54,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491641892] [2024-11-18 17:13:54,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:54,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 17:13:54,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:13:54,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 17:13:54,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 17:13:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:57,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 2970 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-18 17:13:57,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:13:57,325 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 17:13:57,325 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 17:13:57,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491641892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:57,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 17:13:57,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2024-11-18 17:13:57,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795375647] [2024-11-18 17:13:57,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:57,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 17:13:57,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:57,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 17:13:57,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-18 17:13:57,327 INFO L87 Difference]: Start difference. First operand 1444 states and 1892 transitions. Second operand has 8 states, 8 states have (on average 57.125) internal successors, (457), 8 states have internal predecessors, (457), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:57,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:57,888 INFO L93 Difference]: Finished difference Result 3301 states and 4342 transitions. [2024-11-18 17:13:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 17:13:57,888 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 57.125) internal successors, (457), 8 states have internal predecessors, (457), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 484 [2024-11-18 17:13:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:57,893 INFO L225 Difference]: With dead ends: 3301 [2024-11-18 17:13:57,893 INFO L226 Difference]: Without dead ends: 2525 [2024-11-18 17:13:57,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-18 17:13:57,895 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 1770 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:57,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 2670 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 17:13:57,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2024-11-18 17:13:57,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 1987. [2024-11-18 17:13:57,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1987 states, 1964 states have (on average 1.2836048879837068) internal successors, (2521), 1964 states have internal predecessors, (2521), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-18 17:13:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 2563 transitions. [2024-11-18 17:13:57,932 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 2563 transitions. Word has length 484 [2024-11-18 17:13:57,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:57,932 INFO L471 AbstractCegarLoop]: Abstraction has 1987 states and 2563 transitions. [2024-11-18 17:13:57,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 57.125) internal successors, (457), 8 states have internal predecessors, (457), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-18 17:13:57,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 2563 transitions. [2024-11-18 17:13:57,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-18 17:13:57,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:57,936 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:57,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 17:13:58,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-11-18 17:13:58,141 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:58,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:58,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1224833553, now seen corresponding path program 1 times [2024-11-18 17:13:58,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:58,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857609250] [2024-11-18 17:13:58,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:58,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:13:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:13:59,086 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-18 17:13:59,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:13:59,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857609250] [2024-11-18 17:13:59,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857609250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:13:59,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:13:59,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 17:13:59,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470228067] [2024-11-18 17:13:59,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:13:59,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 17:13:59,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:13:59,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 17:13:59,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:59,088 INFO L87 Difference]: Start difference. First operand 1987 states and 2563 transitions. Second operand has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 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) [2024-11-18 17:13:59,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:13:59,139 INFO L93 Difference]: Finished difference Result 3171 states and 4093 transitions. [2024-11-18 17:13:59,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:13:59,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 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 484 [2024-11-18 17:13:59,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:13:59,142 INFO L225 Difference]: With dead ends: 3171 [2024-11-18 17:13:59,142 INFO L226 Difference]: Without dead ends: 2077 [2024-11-18 17:13:59,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:13:59,145 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 16 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3762 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:13:59,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3762 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:13:59,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2024-11-18 17:13:59,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2077. [2024-11-18 17:13:59,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 2054 states have (on average 1.2906523855890943) internal successors, (2651), 2054 states have internal predecessors, (2651), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-18 17:13:59,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2693 transitions. [2024-11-18 17:13:59,178 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2693 transitions. Word has length 484 [2024-11-18 17:13:59,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:13:59,179 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 2693 transitions. [2024-11-18 17:13:59,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 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) [2024-11-18 17:13:59,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2693 transitions. [2024-11-18 17:13:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-11-18 17:13:59,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:13:59,183 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:13:59,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-18 17:13:59,183 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:13:59,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:13:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1023999277, now seen corresponding path program 1 times [2024-11-18 17:13:59,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:13:59,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833871340] [2024-11-18 17:13:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:13:59,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:14:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat