./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_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 fc3dd6a87fcbbda92d2ef86eac2f1110715a91bf4cd8be375753a9611c0b48d5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 10:50:10,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 10:50:10,098 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 10:50:10,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 10:50:10,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 10:50:10,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 10:50:10,125 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 10:50:10,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 10:50:10,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 10:50:10,127 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 10:50:10,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 10:50:10,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 10:50:10,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 10:50:10,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 10:50:10,129 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 10:50:10,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 10:50:10,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 10:50:10,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 10:50:10,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 10:50:10,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 10:50:10,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 10:50:10,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 10:50:10,134 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 10:50:10,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 10:50:10,134 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 10:50:10,135 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 10:50:10,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 10:50:10,135 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 10:50:10,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 10:50:10,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:50:10,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 10:50:10,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 10:50:10,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 10:50:10,136 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 10:50:10,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 10:50:10,136 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 10:50:10,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 10:50:10,137 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 10:50:10,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 10:50:10,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc3dd6a87fcbbda92d2ef86eac2f1110715a91bf4cd8be375753a9611c0b48d5 [2024-11-16 10:50:10,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 10:50:10,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 10:50:10,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 10:50:10,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 10:50:10,365 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 10:50:10,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2024-11-16 10:50:11,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 10:50:11,765 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 10:50:11,765 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2024-11-16 10:50:11,775 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2671e0d8/c42b63b6f131429987fb97615c166b10/FLAG440e52a21 [2024-11-16 10:50:11,785 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2671e0d8/c42b63b6f131429987fb97615c166b10 [2024-11-16 10:50:11,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 10:50:11,788 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 10:50:11,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 10:50:11,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 10:50:11,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 10:50:11,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:50:11" (1/1) ... [2024-11-16 10:50:11,794 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a47ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:11, skipping insertion in model container [2024-11-16 10:50:11,794 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:50:11" (1/1) ... [2024-11-16 10:50:11,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 10:50:11,993 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_w32_d16_e0.c[1280,1293] [2024-11-16 10:50:12,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:50:12,182 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 10:50:12,190 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_w32_d16_e0.c[1280,1293] [2024-11-16 10:50:12,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:50:12,284 INFO L204 MainTranslator]: Completed translation [2024-11-16 10:50:12,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12 WrapperNode [2024-11-16 10:50:12,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 10:50:12,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 10:50:12,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 10:50:12,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 10:50:12,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,492 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1976 [2024-11-16 10:50:12,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 10:50:12,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 10:50:12,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 10:50:12,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 10:50:12,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,582 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 10:50:12,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,620 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,680 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 10:50:12,681 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 10:50:12,681 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 10:50:12,681 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 10:50:12,682 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (1/1) ... [2024-11-16 10:50:12,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:50:12,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:50:12,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 10:50:12,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 10:50:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 10:50:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 10:50:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 10:50:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 10:50:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 10:50:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 10:50:12,924 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 10:50:12,926 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 10:50:14,389 INFO L? ?]: Removed 1091 outVars from TransFormulas that were not future-live. [2024-11-16 10:50:14,389 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 10:50:14,445 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 10:50:14,446 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 10:50:14,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:50:14 BoogieIcfgContainer [2024-11-16 10:50:14,451 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 10:50:14,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 10:50:14,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 10:50:14,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 10:50:14,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:50:11" (1/3) ... [2024-11-16 10:50:14,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4c6246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:50:14, skipping insertion in model container [2024-11-16 10:50:14,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:12" (2/3) ... [2024-11-16 10:50:14,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4c6246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:50:14, skipping insertion in model container [2024-11-16 10:50:14,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:50:14" (3/3) ... [2024-11-16 10:50:14,457 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w32_d16_e0.c [2024-11-16 10:50:14,469 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 10:50:14,469 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 10:50:14,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 10:50:14,531 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;@6d4b3a08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 10:50:14,531 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 10:50:14,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 555 states, 549 states have (on average 1.4918032786885247) internal successors, (819), 550 states have internal predecessors, (819), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 10:50:14,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:14,548 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:14,548 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:14,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:14,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1625409850, now seen corresponding path program 1 times [2024-11-16 10:50:14,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:14,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290791515] [2024-11-16 10:50:14,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:14,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:14,956 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:14,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:14,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290791515] [2024-11-16 10:50:14,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290791515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:14,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:14,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 10:50:14,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957274973] [2024-11-16 10:50:14,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:14,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 10:50:14,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:14,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 10:50:14,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:50:14,985 INFO L87 Difference]: Start difference. First operand has 555 states, 549 states have (on average 1.4918032786885247) internal successors, (819), 550 states have internal predecessors, (819), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:50:15,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:15,180 INFO L93 Difference]: Finished difference Result 1003 states and 1497 transitions. [2024-11-16 10:50:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 10:50:15,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 150 [2024-11-16 10:50:15,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:15,196 INFO L225 Difference]: With dead ends: 1003 [2024-11-16 10:50:15,196 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:50:15,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 10:50:15,203 INFO L432 NwaCegarLoop]: 685 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:15,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 685 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:15,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:50:15,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:50:15,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.489908256880734) internal successors, (812), 545 states have internal predecessors, (812), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 818 transitions. [2024-11-16 10:50:15,256 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 818 transitions. Word has length 150 [2024-11-16 10:50:15,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:15,257 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 818 transitions. [2024-11-16 10:50:15,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:50:15,257 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 818 transitions. [2024-11-16 10:50:15,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 10:50:15,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:15,261 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:15,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 10:50:15,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:15,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:15,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1352422711, now seen corresponding path program 1 times [2024-11-16 10:50:15,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:15,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794970074] [2024-11-16 10:50:15,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:15,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:15,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:15,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:15,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:16,006 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:16,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:16,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794970074] [2024-11-16 10:50:16,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794970074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:16,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:16,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:16,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145879531] [2024-11-16 10:50:16,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:16,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:16,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:16,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:16,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:16,012 INFO L87 Difference]: Start difference. First operand 550 states and 818 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:16,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:16,328 INFO L93 Difference]: Finished difference Result 998 states and 1484 transitions. [2024-11-16 10:50:16,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:16,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 150 [2024-11-16 10:50:16,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:16,330 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:50:16,331 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:50:16,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:16,334 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 694 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:16,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1240 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:16,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:50:16,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:50:16,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4862385321100917) internal successors, (810), 545 states have internal predecessors, (810), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:16,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 816 transitions. [2024-11-16 10:50:16,350 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 816 transitions. Word has length 150 [2024-11-16 10:50:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:16,355 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 816 transitions. [2024-11-16 10:50:16,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 816 transitions. [2024-11-16 10:50:16,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-16 10:50:16,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:16,357 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:16,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 10:50:16,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:16,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:16,357 INFO L85 PathProgramCache]: Analyzing trace with hash -303861187, now seen corresponding path program 1 times [2024-11-16 10:50:16,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:16,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372284842] [2024-11-16 10:50:16,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:16,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:16,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:16,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:16,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:16,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:16,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372284842] [2024-11-16 10:50:16,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372284842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:16,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:16,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:16,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074595273] [2024-11-16 10:50:16,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:16,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:16,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:16,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:16,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:16,709 INFO L87 Difference]: Start difference. First operand 550 states and 816 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:17,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:17,048 INFO L93 Difference]: Finished difference Result 1006 states and 1491 transitions. [2024-11-16 10:50:17,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:50:17,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 152 [2024-11-16 10:50:17,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:17,052 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:50:17,054 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:50:17,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:50:17,056 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 709 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:17,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 1971 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:17,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:50:17,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:50:17,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4844036697247707) internal successors, (809), 545 states have internal predecessors, (809), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:17,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 815 transitions. [2024-11-16 10:50:17,071 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 815 transitions. Word has length 152 [2024-11-16 10:50:17,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:17,072 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 815 transitions. [2024-11-16 10:50:17,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:17,072 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 815 transitions. [2024-11-16 10:50:17,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-16 10:50:17,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:17,074 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:17,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 10:50:17,074 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:17,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:17,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1361897857, now seen corresponding path program 1 times [2024-11-16 10:50:17,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:17,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237054533] [2024-11-16 10:50:17,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:17,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:17,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:17,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237054533] [2024-11-16 10:50:17,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237054533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:17,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:17,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672425028] [2024-11-16 10:50:17,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:17,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:17,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:17,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:17,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:17,380 INFO L87 Difference]: Start difference. First operand 550 states and 815 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:17,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:17,672 INFO L93 Difference]: Finished difference Result 998 states and 1478 transitions. [2024-11-16 10:50:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:17,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 153 [2024-11-16 10:50:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:17,675 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:50:17,675 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:50:17,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:17,676 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1498 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:17,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1240 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:17,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:50:17,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:50:17,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4825688073394496) internal successors, (808), 545 states have internal predecessors, (808), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:17,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 814 transitions. [2024-11-16 10:50:17,685 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 814 transitions. Word has length 153 [2024-11-16 10:50:17,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:17,685 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 814 transitions. [2024-11-16 10:50:17,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:17,686 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 814 transitions. [2024-11-16 10:50:17,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-16 10:50:17,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:17,687 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:17,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 10:50:17,687 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:17,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:17,688 INFO L85 PathProgramCache]: Analyzing trace with hash -27729726, now seen corresponding path program 1 times [2024-11-16 10:50:17,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:17,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412832690] [2024-11-16 10:50:17,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:17,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:17,966 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:17,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:17,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412832690] [2024-11-16 10:50:17,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412832690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:17,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:17,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:17,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68175576] [2024-11-16 10:50:17,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:17,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:17,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:17,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:17,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:17,968 INFO L87 Difference]: Start difference. First operand 550 states and 814 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:18,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:18,238 INFO L93 Difference]: Finished difference Result 998 states and 1476 transitions. [2024-11-16 10:50:18,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:18,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 154 [2024-11-16 10:50:18,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:18,240 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:50:18,240 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:50:18,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:18,242 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 799 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:18,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 1247 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:18,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:50:18,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:50:18,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4807339449541284) internal successors, (807), 545 states have internal predecessors, (807), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:18,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 813 transitions. [2024-11-16 10:50:18,250 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 813 transitions. Word has length 154 [2024-11-16 10:50:18,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:18,251 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 813 transitions. [2024-11-16 10:50:18,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:18,251 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 813 transitions. [2024-11-16 10:50:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 10:50:18,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:18,252 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:18,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 10:50:18,253 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:18,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:18,254 INFO L85 PathProgramCache]: Analyzing trace with hash -80997788, now seen corresponding path program 1 times [2024-11-16 10:50:18,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:18,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234629358] [2024-11-16 10:50:18,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:18,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:18,539 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:18,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:18,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234629358] [2024-11-16 10:50:18,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234629358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:18,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:18,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:18,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857249006] [2024-11-16 10:50:18,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:18,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:18,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:18,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:18,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:18,542 INFO L87 Difference]: Start difference. First operand 550 states and 813 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:18,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:18,815 INFO L93 Difference]: Finished difference Result 998 states and 1474 transitions. [2024-11-16 10:50:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:18,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 155 [2024-11-16 10:50:18,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:18,818 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:50:18,818 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:50:18,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:18,819 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1482 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:18,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1240 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:50:18,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:50:18,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4788990825688073) internal successors, (806), 545 states have internal predecessors, (806), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:18,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 812 transitions. [2024-11-16 10:50:18,827 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 812 transitions. Word has length 155 [2024-11-16 10:50:18,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:18,827 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 812 transitions. [2024-11-16 10:50:18,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 812 transitions. [2024-11-16 10:50:18,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-16 10:50:18,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:18,829 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:18,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 10:50:18,829 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:18,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:18,830 INFO L85 PathProgramCache]: Analyzing trace with hash -716184121, now seen corresponding path program 1 times [2024-11-16 10:50:18,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:18,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189142811] [2024-11-16 10:50:18,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:18,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:19,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:19,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189142811] [2024-11-16 10:50:19,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189142811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:19,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:19,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:19,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963878253] [2024-11-16 10:50:19,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:19,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:19,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:19,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:19,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:19,139 INFO L87 Difference]: Start difference. First operand 550 states and 812 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:19,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:19,412 INFO L93 Difference]: Finished difference Result 998 states and 1472 transitions. [2024-11-16 10:50:19,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:19,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 156 [2024-11-16 10:50:19,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:19,414 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:50:19,414 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:50:19,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:19,415 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 1466 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:19,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 1240 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:19,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:50:19,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:50:19,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4770642201834863) internal successors, (805), 545 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 811 transitions. [2024-11-16 10:50:19,424 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 811 transitions. Word has length 156 [2024-11-16 10:50:19,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:19,424 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 811 transitions. [2024-11-16 10:50:19,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:19,425 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 811 transitions. [2024-11-16 10:50:19,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 10:50:19,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:19,426 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:19,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 10:50:19,426 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:19,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:19,426 INFO L85 PathProgramCache]: Analyzing trace with hash -379887002, now seen corresponding path program 1 times [2024-11-16 10:50:19,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:19,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182867132] [2024-11-16 10:50:19,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:19,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:19,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:19,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182867132] [2024-11-16 10:50:19,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182867132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:19,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:19,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:19,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197798018] [2024-11-16 10:50:19,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:19,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:19,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:19,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:19,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:19,689 INFO L87 Difference]: Start difference. First operand 550 states and 811 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:19,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:19,960 INFO L93 Difference]: Finished difference Result 998 states and 1470 transitions. [2024-11-16 10:50:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:19,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 157 [2024-11-16 10:50:19,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:19,963 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:50:19,963 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:50:19,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:19,964 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 783 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:19,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1247 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:50:19,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:50:19,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4752293577981652) internal successors, (804), 545 states have internal predecessors, (804), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 810 transitions. [2024-11-16 10:50:19,972 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 810 transitions. Word has length 157 [2024-11-16 10:50:19,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:19,973 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 810 transitions. [2024-11-16 10:50:19,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 810 transitions. [2024-11-16 10:50:19,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 10:50:19,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:19,974 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:19,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 10:50:19,974 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:19,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:19,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1457250156, now seen corresponding path program 1 times [2024-11-16 10:50:19,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:19,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31316578] [2024-11-16 10:50:19,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:19,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:20,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:20,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:20,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:20,206 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:20,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:20,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31316578] [2024-11-16 10:50:20,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31316578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:20,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:20,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:20,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751266843] [2024-11-16 10:50:20,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:20,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:20,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:20,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:20,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:20,208 INFO L87 Difference]: Start difference. First operand 550 states and 810 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) [2024-11-16 10:50:20,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:20,501 INFO L93 Difference]: Finished difference Result 998 states and 1468 transitions. [2024-11-16 10:50:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:20,502 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 [2024-11-16 10:50:20,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:20,505 INFO L225 Difference]: With dead ends: 998 [2024-11-16 10:50:20,505 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 10:50:20,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:20,507 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 779 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:20,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1247 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:20,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 10:50:20,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-16 10:50:20,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.473394495412844) internal successors, (803), 545 states have internal predecessors, (803), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:20,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 809 transitions. [2024-11-16 10:50:20,518 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 809 transitions. Word has length 158 [2024-11-16 10:50:20,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:20,519 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 809 transitions. [2024-11-16 10:50:20,519 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) [2024-11-16 10:50:20,519 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 809 transitions. [2024-11-16 10:50:20,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 10:50:20,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:20,520 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:20,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 10:50:20,521 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:20,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:20,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1971317205, now seen corresponding path program 1 times [2024-11-16 10:50:20,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:20,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490464605] [2024-11-16 10:50:20,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:20,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:20,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:20,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:20,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:20,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:20,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490464605] [2024-11-16 10:50:20,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490464605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:20,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:20,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:20,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950313930] [2024-11-16 10:50:20,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:20,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:20,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:20,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:20,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:20,933 INFO L87 Difference]: Start difference. First operand 550 states and 809 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:21,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:21,131 INFO L93 Difference]: Finished difference Result 555 states and 814 transitions. [2024-11-16 10:50:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:21,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 159 [2024-11-16 10:50:21,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:21,133 INFO L225 Difference]: With dead ends: 555 [2024-11-16 10:50:21,133 INFO L226 Difference]: Without dead ends: 552 [2024-11-16 10:50:21,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:21,134 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 0 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:21,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2017 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:21,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-16 10:50:21,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-16 10:50:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4716636197440585) internal successors, (805), 547 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:21,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 811 transitions. [2024-11-16 10:50:21,145 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 811 transitions. Word has length 159 [2024-11-16 10:50:21,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:21,146 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 811 transitions. [2024-11-16 10:50:21,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:21,146 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 811 transitions. [2024-11-16 10:50:21,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 10:50:21,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:21,148 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:21,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 10:50:21,148 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:21,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:21,149 INFO L85 PathProgramCache]: Analyzing trace with hash -836237344, now seen corresponding path program 1 times [2024-11-16 10:50:21,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:21,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7491889] [2024-11-16 10:50:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:21,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:21,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:21,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7491889] [2024-11-16 10:50:21,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7491889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:21,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:21,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:21,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937915606] [2024-11-16 10:50:21,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:21,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:21,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:21,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:21,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:21,391 INFO L87 Difference]: Start difference. First operand 552 states and 811 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:21,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:21,958 INFO L93 Difference]: Finished difference Result 1373 states and 2016 transitions. [2024-11-16 10:50:21,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:50:21,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 160 [2024-11-16 10:50:21,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:21,961 INFO L225 Difference]: With dead ends: 1373 [2024-11-16 10:50:21,961 INFO L226 Difference]: Without dead ends: 552 [2024-11-16 10:50:21,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:50:21,964 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 1583 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:21,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 1944 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:50:21,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-16 10:50:21,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-16 10:50:21,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.469835466179159) internal successors, (804), 547 states have internal predecessors, (804), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:21,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 810 transitions. [2024-11-16 10:50:21,976 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 810 transitions. Word has length 160 [2024-11-16 10:50:21,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:21,976 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 810 transitions. [2024-11-16 10:50:21,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:21,976 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 810 transitions. [2024-11-16 10:50:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 10:50:21,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:21,978 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:21,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 10:50:21,978 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:21,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:21,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1803535423, now seen corresponding path program 1 times [2024-11-16 10:50:21,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:21,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644930763] [2024-11-16 10:50:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:21,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,265 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:22,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:22,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644930763] [2024-11-16 10:50:22,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644930763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:22,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:22,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:22,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298188851] [2024-11-16 10:50:22,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:22,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:22,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:22,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:22,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:22,266 INFO L87 Difference]: Start difference. First operand 552 states and 810 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:22,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:22,477 INFO L93 Difference]: Finished difference Result 1004 states and 1471 transitions. [2024-11-16 10:50:22,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:22,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 161 [2024-11-16 10:50:22,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:22,480 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:50:22,480 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:50:22,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:22,481 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 0 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:22,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2011 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:22,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:50:22,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:50:22,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4681238615664844) internal successors, (806), 549 states have internal predecessors, (806), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 812 transitions. [2024-11-16 10:50:22,491 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 812 transitions. Word has length 161 [2024-11-16 10:50:22,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:22,492 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 812 transitions. [2024-11-16 10:50:22,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:22,492 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 812 transitions. [2024-11-16 10:50:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 10:50:22,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:22,493 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:22,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 10:50:22,494 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:22,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:22,495 INFO L85 PathProgramCache]: Analyzing trace with hash -177732687, now seen corresponding path program 1 times [2024-11-16 10:50:22,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:22,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826514966] [2024-11-16 10:50:22,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:22,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:22,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826514966] [2024-11-16 10:50:22,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826514966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:22,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:22,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:22,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152986337] [2024-11-16 10:50:22,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:22,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:22,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:22,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:22,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:22,854 INFO L87 Difference]: Start difference. First operand 554 states and 812 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:23,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:23,096 INFO L93 Difference]: Finished difference Result 1006 states and 1472 transitions. [2024-11-16 10:50:23,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:23,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 162 [2024-11-16 10:50:23,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:23,098 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:50:23,098 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:50:23,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:23,099 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 694 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:23,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1284 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:23,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:50:23,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:50:23,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4663023679417122) internal successors, (805), 549 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:23,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 811 transitions. [2024-11-16 10:50:23,108 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 811 transitions. Word has length 162 [2024-11-16 10:50:23,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:23,109 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 811 transitions. [2024-11-16 10:50:23,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:23,109 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 811 transitions. [2024-11-16 10:50:23,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-16 10:50:23,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:23,110 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:23,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 10:50:23,110 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:23,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:23,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1183149618, now seen corresponding path program 1 times [2024-11-16 10:50:23,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:23,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319636541] [2024-11-16 10:50:23,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:23,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:23,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:23,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:23,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:23,335 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:23,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:23,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319636541] [2024-11-16 10:50:23,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319636541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:23,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:23,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:23,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845336572] [2024-11-16 10:50:23,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:23,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:23,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:23,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:23,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:23,337 INFO L87 Difference]: Start difference. First operand 554 states and 811 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:23,637 INFO L93 Difference]: Finished difference Result 1012 states and 1478 transitions. [2024-11-16 10:50:23,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:50:23,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 163 [2024-11-16 10:50:23,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:23,639 INFO L225 Difference]: With dead ends: 1012 [2024-11-16 10:50:23,639 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:50:23,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:50:23,640 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 705 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:23,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 1977 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:23,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:50:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:50:23,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.46448087431694) internal successors, (804), 549 states have internal predecessors, (804), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:23,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 810 transitions. [2024-11-16 10:50:23,649 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 810 transitions. Word has length 163 [2024-11-16 10:50:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:23,649 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 810 transitions. [2024-11-16 10:50:23,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 810 transitions. [2024-11-16 10:50:23,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 10:50:23,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:23,651 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:23,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 10:50:23,651 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:23,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:23,652 INFO L85 PathProgramCache]: Analyzing trace with hash 167628546, now seen corresponding path program 1 times [2024-11-16 10:50:23,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:23,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235017168] [2024-11-16 10:50:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:23,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:23,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:23,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:23,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:23,887 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:23,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:23,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235017168] [2024-11-16 10:50:23,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235017168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:23,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:23,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:23,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055079826] [2024-11-16 10:50:23,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:23,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:23,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:23,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:23,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:23,889 INFO L87 Difference]: Start difference. First operand 554 states and 810 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:24,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:24,123 INFO L93 Difference]: Finished difference Result 1006 states and 1468 transitions. [2024-11-16 10:50:24,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:24,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 164 [2024-11-16 10:50:24,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:24,125 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:50:24,125 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:50:24,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:24,127 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 794 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:24,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1291 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:24,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:50:24,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:50:24,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4626593806921675) internal successors, (803), 549 states have internal predecessors, (803), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 809 transitions. [2024-11-16 10:50:24,136 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 809 transitions. Word has length 164 [2024-11-16 10:50:24,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:24,136 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 809 transitions. [2024-11-16 10:50:24,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:24,136 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 809 transitions. [2024-11-16 10:50:24,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 10:50:24,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:24,137 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:24,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 10:50:24,138 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:24,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:24,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1965996233, now seen corresponding path program 1 times [2024-11-16 10:50:24,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:24,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388406817] [2024-11-16 10:50:24,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:24,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:24,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:24,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388406817] [2024-11-16 10:50:24,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388406817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:24,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:24,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:24,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345911526] [2024-11-16 10:50:24,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:24,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:24,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:24,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:24,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:24,393 INFO L87 Difference]: Start difference. First operand 554 states and 809 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) [2024-11-16 10:50:24,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:24,630 INFO L93 Difference]: Finished difference Result 1006 states and 1466 transitions. [2024-11-16 10:50:24,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:24,631 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 [2024-11-16 10:50:24,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:24,633 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:50:24,633 INFO L226 Difference]: Without dead ends: 554 [2024-11-16 10:50:24,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:24,634 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 790 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:24,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1291 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:24,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-16 10:50:24,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-16 10:50:24,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4608378870673953) internal successors, (802), 549 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) [2024-11-16 10:50:24,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 808 transitions. [2024-11-16 10:50:24,642 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 808 transitions. Word has length 165 [2024-11-16 10:50:24,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:24,643 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 808 transitions. [2024-11-16 10:50:24,643 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) [2024-11-16 10:50:24,643 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 808 transitions. [2024-11-16 10:50:24,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 10:50:24,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:24,644 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:24,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 10:50:24,644 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:24,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:24,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1915392487, now seen corresponding path program 1 times [2024-11-16 10:50:24,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:24,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968616779] [2024-11-16 10:50:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:24,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:24,998 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:24,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:24,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968616779] [2024-11-16 10:50:24,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968616779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:24,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:24,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:24,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613710519] [2024-11-16 10:50:24,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:24,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:24,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:25,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:25,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:25,000 INFO L87 Difference]: Start difference. First operand 554 states and 808 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:25,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:25,195 INFO L93 Difference]: Finished difference Result 1005 states and 1463 transitions. [2024-11-16 10:50:25,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:25,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 166 [2024-11-16 10:50:25,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:25,197 INFO L225 Difference]: With dead ends: 1005 [2024-11-16 10:50:25,197 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:50:25,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:25,198 INFO L432 NwaCegarLoop]: 653 mSDtfsCounter, 695 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:25,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1308 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:25,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:50:25,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:50:25,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4580291970802919) internal successors, (799), 548 states have internal predecessors, (799), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:25,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 805 transitions. [2024-11-16 10:50:25,206 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 805 transitions. Word has length 166 [2024-11-16 10:50:25,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:25,206 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 805 transitions. [2024-11-16 10:50:25,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:25,206 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 805 transitions. [2024-11-16 10:50:25,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-16 10:50:25,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:25,208 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:25,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 10:50:25,208 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:25,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:25,208 INFO L85 PathProgramCache]: Analyzing trace with hash -143858948, now seen corresponding path program 1 times [2024-11-16 10:50:25,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:25,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94829018] [2024-11-16 10:50:25,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:25,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:25,514 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:25,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:25,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94829018] [2024-11-16 10:50:25,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94829018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:25,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:25,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:25,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101431025] [2024-11-16 10:50:25,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:25,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:25,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:25,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:25,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:25,515 INFO L87 Difference]: Start difference. First operand 553 states and 805 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:25,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:25,748 INFO L93 Difference]: Finished difference Result 1006 states and 1460 transitions. [2024-11-16 10:50:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:50:25,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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 167 [2024-11-16 10:50:25,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:25,751 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 10:50:25,751 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:50:25,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:50:25,751 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 699 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:25,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1983 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:25,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:50:25,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:50:25,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4562043795620438) internal successors, (798), 548 states have internal predecessors, (798), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:25,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 804 transitions. [2024-11-16 10:50:25,759 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 804 transitions. Word has length 167 [2024-11-16 10:50:25,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:25,760 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 804 transitions. [2024-11-16 10:50:25,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 804 transitions. [2024-11-16 10:50:25,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-16 10:50:25,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:25,761 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:25,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 10:50:25,761 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:25,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:25,762 INFO L85 PathProgramCache]: Analyzing trace with hash 903810, now seen corresponding path program 1 times [2024-11-16 10:50:25,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:25,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320570577] [2024-11-16 10:50:25,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:25,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:26,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:26,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 10:50:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:26,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 10:50:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:26,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320570577] [2024-11-16 10:50:26,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320570577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:26,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:26,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:26,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186864859] [2024-11-16 10:50:26,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:26,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:26,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:26,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:26,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:26,033 INFO L87 Difference]: Start difference. First operand 553 states and 804 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:50:26,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:26,226 INFO L93 Difference]: Finished difference Result 1004 states and 1456 transitions. [2024-11-16 10:50:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:26,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 168 [2024-11-16 10:50:26,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:26,228 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:50:26,228 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:50:26,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:26,229 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 733 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:26,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 1312 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:26,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:50:26,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:50:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4543795620437956) internal successors, (797), 548 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:26,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 803 transitions. [2024-11-16 10:50:26,236 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 803 transitions. Word has length 168 [2024-11-16 10:50:26,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:26,236 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 803 transitions. [2024-11-16 10:50:26,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:50:26,237 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 803 transitions. [2024-11-16 10:50:26,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-16 10:50:26,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:26,250 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:26,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 10:50:26,250 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:26,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:26,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1233910747, now seen corresponding path program 1 times [2024-11-16 10:50:26,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:26,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981144673] [2024-11-16 10:50:26,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:26,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:26,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:26,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 10:50:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:26,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 10:50:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:26,583 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:26,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:26,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981144673] [2024-11-16 10:50:26,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981144673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:26,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:26,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:26,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527307258] [2024-11-16 10:50:26,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:26,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:26,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:26,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:26,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:26,586 INFO L87 Difference]: Start difference. First operand 553 states and 803 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:50:26,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:26,792 INFO L93 Difference]: Finished difference Result 1004 states and 1454 transitions. [2024-11-16 10:50:26,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:26,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 169 [2024-11-16 10:50:26,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:26,794 INFO L225 Difference]: With dead ends: 1004 [2024-11-16 10:50:26,794 INFO L226 Difference]: Without dead ends: 553 [2024-11-16 10:50:26,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:26,795 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 731 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:26,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1312 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:26,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-16 10:50:26,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-16 10:50:26,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 548 states have (on average 1.4525547445255473) internal successors, (796), 548 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:26,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 802 transitions. [2024-11-16 10:50:26,803 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 802 transitions. Word has length 169 [2024-11-16 10:50:26,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:26,803 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 802 transitions. [2024-11-16 10:50:26,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-16 10:50:26,803 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 802 transitions. [2024-11-16 10:50:26,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-16 10:50:26,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:26,804 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:26,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 10:50:26,804 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:26,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:26,805 INFO L85 PathProgramCache]: Analyzing trace with hash -186834965, now seen corresponding path program 1 times [2024-11-16 10:50:26,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:26,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159880273] [2024-11-16 10:50:26,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:26,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,233 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:27,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:27,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159880273] [2024-11-16 10:50:27,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159880273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:27,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:27,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:27,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645004997] [2024-11-16 10:50:27,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:27,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:27,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:27,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:27,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:27,235 INFO L87 Difference]: Start difference. First operand 553 states and 802 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:27,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:27,582 INFO L93 Difference]: Finished difference Result 1010 states and 1460 transitions. [2024-11-16 10:50:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:50:27,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 170 [2024-11-16 10:50:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:27,584 INFO L225 Difference]: With dead ends: 1010 [2024-11-16 10:50:27,585 INFO L226 Difference]: Without dead ends: 557 [2024-11-16 10:50:27,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:27,585 INFO L432 NwaCegarLoop]: 661 mSDtfsCounter, 2 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:27,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2489 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:27,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-16 10:50:27,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 555. [2024-11-16 10:50:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.450909090909091) internal successors, (798), 550 states have internal predecessors, (798), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 804 transitions. [2024-11-16 10:50:27,595 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 804 transitions. Word has length 170 [2024-11-16 10:50:27,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:27,596 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 804 transitions. [2024-11-16 10:50:27,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:27,596 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 804 transitions. [2024-11-16 10:50:27,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-16 10:50:27,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:27,597 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:27,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 10:50:27,598 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:27,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:27,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1847886509, now seen corresponding path program 1 times [2024-11-16 10:50:27,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:27,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776242793] [2024-11-16 10:50:27,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:27,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:27,988 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:27,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:27,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776242793] [2024-11-16 10:50:27,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776242793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:27,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:27,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:27,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898121713] [2024-11-16 10:50:27,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:27,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:27,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:27,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:27,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:27,991 INFO L87 Difference]: Start difference. First operand 555 states and 804 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:28,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:28,326 INFO L93 Difference]: Finished difference Result 1008 states and 1456 transitions. [2024-11-16 10:50:28,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:28,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 171 [2024-11-16 10:50:28,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:28,333 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:50:28,333 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:50:28,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:28,333 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 673 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:28,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1824 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:50:28,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:50:28,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.449090909090909) internal successors, (797), 550 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:28,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 803 transitions. [2024-11-16 10:50:28,342 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 803 transitions. Word has length 171 [2024-11-16 10:50:28,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:28,342 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 803 transitions. [2024-11-16 10:50:28,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 803 transitions. [2024-11-16 10:50:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 10:50:28,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:28,343 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:28,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 10:50:28,343 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:28,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:28,344 INFO L85 PathProgramCache]: Analyzing trace with hash -920111317, now seen corresponding path program 1 times [2024-11-16 10:50:28,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:28,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930079776] [2024-11-16 10:50:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:28,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:28,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:28,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930079776] [2024-11-16 10:50:28,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930079776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:28,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:28,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:28,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576191876] [2024-11-16 10:50:28,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:28,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:28,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:28,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:28,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:28,686 INFO L87 Difference]: Start difference. First operand 555 states and 803 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:28,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:28,979 INFO L93 Difference]: Finished difference Result 1008 states and 1454 transitions. [2024-11-16 10:50:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:28,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 172 [2024-11-16 10:50:28,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:28,982 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:50:28,982 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:50:28,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:28,983 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 670 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:28,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1227 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:50:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:50:28,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4472727272727273) internal successors, (796), 550 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 802 transitions. [2024-11-16 10:50:28,990 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 802 transitions. Word has length 172 [2024-11-16 10:50:28,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:28,991 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 802 transitions. [2024-11-16 10:50:28,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:28,992 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 802 transitions. [2024-11-16 10:50:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 10:50:28,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:28,993 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:28,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 10:50:28,993 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:28,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash -537055903, now seen corresponding path program 1 times [2024-11-16 10:50:28,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:28,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232981114] [2024-11-16 10:50:28,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:28,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:29,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:29,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232981114] [2024-11-16 10:50:29,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232981114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:29,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:29,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:29,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762151811] [2024-11-16 10:50:29,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:29,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:29,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:29,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:29,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:29,389 INFO L87 Difference]: Start difference. First operand 555 states and 802 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:29,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:29,636 INFO L93 Difference]: Finished difference Result 1008 states and 1452 transitions. [2024-11-16 10:50:29,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:29,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 173 [2024-11-16 10:50:29,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:29,638 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:50:29,638 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:50:29,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:29,638 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1330 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:29,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 1220 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:29,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:50:29,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:50:29,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4454545454545455) internal successors, (795), 550 states have internal predecessors, (795), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:29,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 801 transitions. [2024-11-16 10:50:29,646 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 801 transitions. Word has length 173 [2024-11-16 10:50:29,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:29,646 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 801 transitions. [2024-11-16 10:50:29,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:29,647 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 801 transitions. [2024-11-16 10:50:29,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-16 10:50:29,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:29,647 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:29,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 10:50:29,648 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:29,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:29,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1720800400, now seen corresponding path program 1 times [2024-11-16 10:50:29,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:29,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692271897] [2024-11-16 10:50:29,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:29,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:29,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:29,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692271897] [2024-11-16 10:50:29,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692271897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:29,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:29,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:29,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754497569] [2024-11-16 10:50:29,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:29,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:29,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:29,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:29,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:29,969 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) [2024-11-16 10:50:30,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:30,264 INFO L93 Difference]: Finished difference Result 1008 states and 1450 transitions. [2024-11-16 10:50:30,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:30,265 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 [2024-11-16 10:50:30,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:30,267 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:50:30,267 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:50:30,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:30,268 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1324 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:30,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 1220 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:30,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:50:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:50:30,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4436363636363636) internal successors, (794), 550 states have internal predecessors, (794), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:30,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 800 transitions. [2024-11-16 10:50:30,275 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 800 transitions. Word has length 174 [2024-11-16 10:50:30,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:30,276 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 800 transitions. [2024-11-16 10:50:30,276 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) [2024-11-16 10:50:30,276 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 800 transitions. [2024-11-16 10:50:30,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 10:50:30,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:30,277 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:30,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 10:50:30,277 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:30,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:30,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1055962433, now seen corresponding path program 1 times [2024-11-16 10:50:30,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:30,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960961114] [2024-11-16 10:50:30,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:30,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:30,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:30,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:30,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:30,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:30,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960961114] [2024-11-16 10:50:30,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960961114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:30,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:30,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:30,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461090260] [2024-11-16 10:50:30,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:30,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:30,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:30,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:30,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:30,591 INFO L87 Difference]: Start difference. First operand 555 states and 800 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:30,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:30,872 INFO L93 Difference]: Finished difference Result 1008 states and 1448 transitions. [2024-11-16 10:50:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:30,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 175 [2024-11-16 10:50:30,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:30,874 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:50:30,874 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:50:30,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:30,875 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1314 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:30,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1220 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:30,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:50:30,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:50:30,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.4418181818181819) internal successors, (793), 550 states have internal predecessors, (793), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:30,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 799 transitions. [2024-11-16 10:50:30,884 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 799 transitions. Word has length 175 [2024-11-16 10:50:30,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:30,884 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 799 transitions. [2024-11-16 10:50:30,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:30,884 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 799 transitions. [2024-11-16 10:50:30,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 10:50:30,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:30,885 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:30,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 10:50:30,886 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:30,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:30,886 INFO L85 PathProgramCache]: Analyzing trace with hash -318887595, now seen corresponding path program 1 times [2024-11-16 10:50:30,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:30,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472437369] [2024-11-16 10:50:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:30,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:31,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:31,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472437369] [2024-11-16 10:50:31,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472437369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:31,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:31,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:31,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386098453] [2024-11-16 10:50:31,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:31,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:31,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:31,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:31,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:31,203 INFO L87 Difference]: Start difference. First operand 555 states and 799 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:31,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:31,483 INFO L93 Difference]: Finished difference Result 1008 states and 1446 transitions. [2024-11-16 10:50:31,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:31,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 176 [2024-11-16 10:50:31,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:31,485 INFO L225 Difference]: With dead ends: 1008 [2024-11-16 10:50:31,485 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 10:50:31,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:31,485 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1308 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:31,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1220 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:31,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 10:50:31,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-16 10:50:31,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 550 states have (on average 1.44) internal successors, (792), 550 states have internal predecessors, (792), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:31,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 798 transitions. [2024-11-16 10:50:31,493 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 798 transitions. Word has length 176 [2024-11-16 10:50:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:31,493 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 798 transitions. [2024-11-16 10:50:31,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:31,493 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 798 transitions. [2024-11-16 10:50:31,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 10:50:31,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:31,494 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:31,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 10:50:31,494 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:31,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:31,494 INFO L85 PathProgramCache]: Analyzing trace with hash -440231902, now seen corresponding path program 1 times [2024-11-16 10:50:31,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:31,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130657400] [2024-11-16 10:50:31,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:31,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:32,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 10:50:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:32,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 10:50:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:32,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 10:50:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:32,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:32,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130657400] [2024-11-16 10:50:32,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130657400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:32,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:32,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:50:32,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444567744] [2024-11-16 10:50:32,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:32,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:50:32,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:32,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:50:32,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:50:32,146 INFO L87 Difference]: Start difference. First operand 555 states and 798 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:32,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:32,668 INFO L93 Difference]: Finished difference Result 1074 states and 1539 transitions. [2024-11-16 10:50:32,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 10:50:32,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 177 [2024-11-16 10:50:32,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:32,670 INFO L225 Difference]: With dead ends: 1074 [2024-11-16 10:50:32,670 INFO L226 Difference]: Without dead ends: 557 [2024-11-16 10:50:32,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 10:50:32,671 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 855 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:32,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 3049 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:50:32,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-16 10:50:32,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-16 10:50:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 552 states have (on average 1.4365942028985508) internal successors, (793), 552 states have internal predecessors, (793), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:32,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 799 transitions. [2024-11-16 10:50:32,679 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 799 transitions. Word has length 177 [2024-11-16 10:50:32,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:32,679 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 799 transitions. [2024-11-16 10:50:32,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:32,679 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 799 transitions. [2024-11-16 10:50:32,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 10:50:32,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:32,680 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:32,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 10:50:32,680 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:32,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:32,681 INFO L85 PathProgramCache]: Analyzing trace with hash -340514976, now seen corresponding path program 1 times [2024-11-16 10:50:32,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:32,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316583176] [2024-11-16 10:50:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:32,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:32,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:32,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:32,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:32,943 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:32,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:32,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316583176] [2024-11-16 10:50:32,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316583176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:32,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:32,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:32,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479557909] [2024-11-16 10:50:32,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:32,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:32,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:32,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:32,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:32,945 INFO L87 Difference]: Start difference. First operand 557 states and 799 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:33,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:33,138 INFO L93 Difference]: Finished difference Result 1012 states and 1446 transitions. [2024-11-16 10:50:33,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:33,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 178 [2024-11-16 10:50:33,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:33,139 INFO L225 Difference]: With dead ends: 1012 [2024-11-16 10:50:33,140 INFO L226 Difference]: Without dead ends: 557 [2024-11-16 10:50:33,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:33,140 INFO L432 NwaCegarLoop]: 644 mSDtfsCounter, 682 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:33,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1290 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:33,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-16 10:50:33,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-16 10:50:33,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 552 states have (on average 1.434782608695652) internal successors, (792), 552 states have internal predecessors, (792), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:33,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 798 transitions. [2024-11-16 10:50:33,149 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 798 transitions. Word has length 178 [2024-11-16 10:50:33,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:33,149 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 798 transitions. [2024-11-16 10:50:33,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 798 transitions. [2024-11-16 10:50:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 10:50:33,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:33,151 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:33,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 10:50:33,151 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:33,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:33,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2085213595, now seen corresponding path program 1 times [2024-11-16 10:50:33,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:33,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377338712] [2024-11-16 10:50:33,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:33,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:33,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:33,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:33,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:33,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:33,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377338712] [2024-11-16 10:50:33,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377338712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:33,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:33,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:33,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078920125] [2024-11-16 10:50:33,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:33,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:33,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:33,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:33,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:33,442 INFO L87 Difference]: Start difference. First operand 557 states and 798 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:33,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:33,666 INFO L93 Difference]: Finished difference Result 1012 states and 1444 transitions. [2024-11-16 10:50:33,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:33,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 179 [2024-11-16 10:50:33,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:33,668 INFO L225 Difference]: With dead ends: 1012 [2024-11-16 10:50:33,668 INFO L226 Difference]: Without dead ends: 557 [2024-11-16 10:50:33,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:33,669 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 674 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:33,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1258 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:33,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-16 10:50:33,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-16 10:50:33,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 552 states have (on average 1.4329710144927537) internal successors, (791), 552 states have internal predecessors, (791), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:33,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 797 transitions. [2024-11-16 10:50:33,677 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 797 transitions. Word has length 179 [2024-11-16 10:50:33,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:33,677 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 797 transitions. [2024-11-16 10:50:33,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:33,677 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 797 transitions. [2024-11-16 10:50:33,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-16 10:50:33,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:33,678 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:33,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 10:50:33,678 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:33,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:33,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1972724055, now seen corresponding path program 1 times [2024-11-16 10:50:33,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:33,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955175242] [2024-11-16 10:50:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:33,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:33,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:33,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:33,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:33,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:33,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955175242] [2024-11-16 10:50:33,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955175242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:33,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:33,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:33,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808179675] [2024-11-16 10:50:33,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:33,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:33,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:33,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:33,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:33,980 INFO L87 Difference]: Start difference. First operand 557 states and 797 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:34,205 INFO L93 Difference]: Finished difference Result 1012 states and 1442 transitions. [2024-11-16 10:50:34,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:34,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 180 [2024-11-16 10:50:34,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:34,207 INFO L225 Difference]: With dead ends: 1012 [2024-11-16 10:50:34,207 INFO L226 Difference]: Without dead ends: 557 [2024-11-16 10:50:34,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:34,208 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 672 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:34,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 1265 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:34,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-16 10:50:34,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-16 10:50:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 552 states have (on average 1.431159420289855) internal successors, (790), 552 states have internal predecessors, (790), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 796 transitions. [2024-11-16 10:50:34,215 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 796 transitions. Word has length 180 [2024-11-16 10:50:34,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:34,216 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 796 transitions. [2024-11-16 10:50:34,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:34,216 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 796 transitions. [2024-11-16 10:50:34,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-16 10:50:34,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:34,216 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:50:34,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 10:50:34,217 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:34,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:34,217 INFO L85 PathProgramCache]: Analyzing trace with hash 211093931, now seen corresponding path program 1 times [2024-11-16 10:50:34,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:34,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408663984] [2024-11-16 10:50:34,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:34,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:34,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:34,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:34,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:34,590 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:34,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:34,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408663984] [2024-11-16 10:50:34,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408663984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:34,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:34,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:34,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887553454] [2024-11-16 10:50:34,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:34,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:34,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:34,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:34,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:34,592 INFO L87 Difference]: Start difference. First operand 557 states and 796 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:34,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:34,837 INFO L93 Difference]: Finished difference Result 1012 states and 1440 transitions. [2024-11-16 10:50:34,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:34,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 181 [2024-11-16 10:50:34,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:34,839 INFO L225 Difference]: With dead ends: 1012 [2024-11-16 10:50:34,839 INFO L226 Difference]: Without dead ends: 557 [2024-11-16 10:50:34,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:34,840 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 1334 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:34,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 1258 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:34,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-16 10:50:34,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2024-11-16 10:50:34,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 552 states have (on average 1.4293478260869565) internal successors, (789), 552 states have internal predecessors, (789), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 10:50:34,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 795 transitions. [2024-11-16 10:50:34,853 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 795 transitions. Word has length 181 [2024-11-16 10:50:34,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:34,854 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 795 transitions. [2024-11-16 10:50:34,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:34,854 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 795 transitions. [2024-11-16 10:50:34,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-16 10:50:34,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:34,855 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, 1] [2024-11-16 10:50:34,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 10:50:34,855 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:34,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:34,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1519230764, now seen corresponding path program 1 times [2024-11-16 10:50:34,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:34,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746634755] [2024-11-16 10:50:34,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:34,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:35,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:35,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:35,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 10:50:35,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:35,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746634755] [2024-11-16 10:50:35,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746634755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:35,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:35,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:50:35,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501265485] [2024-11-16 10:50:35,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:35,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:50:35,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:35,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:50:35,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:50:35,491 INFO L87 Difference]: Start difference. First operand 557 states and 795 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:35,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:35,900 INFO L93 Difference]: Finished difference Result 1167 states and 1639 transitions. [2024-11-16 10:50:35,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:50:35,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 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 182 [2024-11-16 10:50:35,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:35,902 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:35,902 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:35,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-16 10:50:35,902 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 1128 mSDsluCounter, 2562 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:35,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1131 Valid, 3205 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:50:35,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:35,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3963068181818181) internal successors, (983), 704 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) [2024-11-16 10:50:35,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 995 transitions. [2024-11-16 10:50:35,914 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 995 transitions. Word has length 182 [2024-11-16 10:50:35,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:35,914 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 995 transitions. [2024-11-16 10:50:35,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:50:35,914 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 995 transitions. [2024-11-16 10:50:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-16 10:50:35,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:35,916 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] [2024-11-16 10:50:35,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 10:50:35,916 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:35,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:35,917 INFO L85 PathProgramCache]: Analyzing trace with hash 364030019, now seen corresponding path program 1 times [2024-11-16 10:50:35,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:35,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17143161] [2024-11-16 10:50:35,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:35,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:36,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:36,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:36,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:36,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-11-16 10:50:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:36,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-16 10:50:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:36,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-16 10:50:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:36,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:36,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17143161] [2024-11-16 10:50:36,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17143161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:36,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:36,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:36,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521167220] [2024-11-16 10:50:36,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:36,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:36,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:36,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:36,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:36,467 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:36,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:36,723 INFO L93 Difference]: Finished difference Result 1167 states and 1638 transitions. [2024-11-16 10:50:36,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:36,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 449 [2024-11-16 10:50:36,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:36,726 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:36,726 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:36,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:36,727 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 1323 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:36,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 1210 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:36,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:36,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:36,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3948863636363635) internal successors, (982), 704 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) [2024-11-16 10:50:36,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 994 transitions. [2024-11-16 10:50:36,740 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 994 transitions. Word has length 449 [2024-11-16 10:50:36,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:36,740 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 994 transitions. [2024-11-16 10:50:36,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 994 transitions. [2024-11-16 10:50:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-11-16 10:50:36,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:36,743 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] [2024-11-16 10:50:36,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 10:50:36,743 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:36,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1213496445, now seen corresponding path program 1 times [2024-11-16 10:50:36,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:36,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841436778] [2024-11-16 10:50:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:36,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:37,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:37,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:37,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:37,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-11-16 10:50:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:37,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-16 10:50:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:37,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-16 10:50:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:37,292 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:37,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:37,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841436778] [2024-11-16 10:50:37,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841436778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:37,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:37,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:37,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026884023] [2024-11-16 10:50:37,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:37,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:37,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:37,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:37,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:37,294 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:37,564 INFO L93 Difference]: Finished difference Result 1167 states and 1636 transitions. [2024-11-16 10:50:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:37,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 450 [2024-11-16 10:50:37,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:37,567 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:37,567 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:37,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:37,568 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 715 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:37,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 1217 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:37,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:37,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:37,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3934659090909092) internal successors, (981), 704 states have internal predecessors, (981), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:37,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 993 transitions. [2024-11-16 10:50:37,580 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 993 transitions. Word has length 450 [2024-11-16 10:50:37,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:37,580 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 993 transitions. [2024-11-16 10:50:37,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:37,580 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 993 transitions. [2024-11-16 10:50:37,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-11-16 10:50:37,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:37,582 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] [2024-11-16 10:50:37,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 10:50:37,582 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:37,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:37,583 INFO L85 PathProgramCache]: Analyzing trace with hash 583125844, now seen corresponding path program 1 times [2024-11-16 10:50:37,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:37,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035055450] [2024-11-16 10:50:37,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:37,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:38,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:38,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:38,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:38,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-11-16 10:50:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:38,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-16 10:50:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:38,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-16 10:50:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:38,147 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:38,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:38,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035055450] [2024-11-16 10:50:38,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035055450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:38,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:38,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:38,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941085843] [2024-11-16 10:50:38,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:38,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:38,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:38,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:38,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:38,151 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:38,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:38,418 INFO L93 Difference]: Finished difference Result 1167 states and 1634 transitions. [2024-11-16 10:50:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:38,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 451 [2024-11-16 10:50:38,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:38,420 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:38,420 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:38,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:38,421 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 707 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:38,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 1217 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:38,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:38,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:38,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3920454545454546) internal successors, (980), 704 states have internal predecessors, (980), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 992 transitions. [2024-11-16 10:50:38,432 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 992 transitions. Word has length 451 [2024-11-16 10:50:38,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:38,432 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 992 transitions. [2024-11-16 10:50:38,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:38,432 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 992 transitions. [2024-11-16 10:50:38,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-16 10:50:38,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:38,434 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] [2024-11-16 10:50:38,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 10:50:38,434 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:38,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:38,435 INFO L85 PathProgramCache]: Analyzing trace with hash -330163852, now seen corresponding path program 1 times [2024-11-16 10:50:38,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:38,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349264709] [2024-11-16 10:50:38,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:38,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-11-16 10:50:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-11-16 10:50:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-16 10:50:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:39,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:39,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349264709] [2024-11-16 10:50:39,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349264709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:39,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:39,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:39,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898238419] [2024-11-16 10:50:39,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:39,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:39,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:39,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:39,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:39,058 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:39,246 INFO L93 Difference]: Finished difference Result 1167 states and 1632 transitions. [2024-11-16 10:50:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:39,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 452 [2024-11-16 10:50:39,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:39,248 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:39,248 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:39,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:39,249 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 1275 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:39,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 1210 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:39,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:39,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:39,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.390625) internal successors, (979), 704 states have internal predecessors, (979), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:39,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 991 transitions. [2024-11-16 10:50:39,265 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 991 transitions. Word has length 452 [2024-11-16 10:50:39,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:39,268 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 991 transitions. [2024-11-16 10:50:39,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:39,268 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 991 transitions. [2024-11-16 10:50:39,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-16 10:50:39,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:39,270 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] [2024-11-16 10:50:39,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-16 10:50:39,271 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:39,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:39,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1421515749, now seen corresponding path program 1 times [2024-11-16 10:50:39,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:39,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125263573] [2024-11-16 10:50:39,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:39,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-11-16 10:50:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-11-16 10:50:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-16 10:50:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:39,931 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:39,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:39,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125263573] [2024-11-16 10:50:39,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125263573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:39,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:39,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:39,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867757860] [2024-11-16 10:50:39,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:39,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:39,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:39,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:39,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:39,933 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:40,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:40,191 INFO L93 Difference]: Finished difference Result 1167 states and 1630 transitions. [2024-11-16 10:50:40,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:40,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 453 [2024-11-16 10:50:40,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:40,194 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:40,194 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:40,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:40,195 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 1259 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:40,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 1210 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:40,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:40,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3892045454545454) internal successors, (978), 704 states have internal predecessors, (978), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:40,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 990 transitions. [2024-11-16 10:50:40,213 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 990 transitions. Word has length 453 [2024-11-16 10:50:40,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:40,213 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 990 transitions. [2024-11-16 10:50:40,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:40,213 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 990 transitions. [2024-11-16 10:50:40,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-16 10:50:40,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:40,217 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] [2024-11-16 10:50:40,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-16 10:50:40,217 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:40,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:40,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1435077403, now seen corresponding path program 1 times [2024-11-16 10:50:40,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:40,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11590297] [2024-11-16 10:50:40,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:40,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:40,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:40,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:40,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:40,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-11-16 10:50:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:40,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-16 10:50:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:40,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-16 10:50:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:40,808 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:40,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:40,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11590297] [2024-11-16 10:50:40,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11590297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:40,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:40,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:40,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075159688] [2024-11-16 10:50:40,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:40,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:40,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:40,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:40,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:40,810 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:41,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:41,025 INFO L93 Difference]: Finished difference Result 1167 states and 1628 transitions. [2024-11-16 10:50:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:41,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 454 [2024-11-16 10:50:41,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:41,028 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:41,028 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:41,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:41,029 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 1243 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:41,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1210 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:41,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:41,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:41,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3877840909090908) internal successors, (977), 704 states have internal predecessors, (977), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:41,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 989 transitions. [2024-11-16 10:50:41,040 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 989 transitions. Word has length 454 [2024-11-16 10:50:41,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:41,041 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 989 transitions. [2024-11-16 10:50:41,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:41,041 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 989 transitions. [2024-11-16 10:50:41,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-16 10:50:41,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:41,043 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] [2024-11-16 10:50:41,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-16 10:50:41,043 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:41,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:41,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1802394102, now seen corresponding path program 1 times [2024-11-16 10:50:41,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:41,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032880076] [2024-11-16 10:50:41,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:41,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:41,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:41,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:41,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:41,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-11-16 10:50:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:41,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-16 10:50:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:41,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-16 10:50:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:41,569 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:41,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:41,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032880076] [2024-11-16 10:50:41,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032880076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:41,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:41,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:41,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57215160] [2024-11-16 10:50:41,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:41,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:41,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:41,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:41,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:41,571 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:41,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:41,770 INFO L93 Difference]: Finished difference Result 1167 states and 1626 transitions. [2024-11-16 10:50:41,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:41,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 455 [2024-11-16 10:50:41,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:41,772 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:41,772 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:41,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:41,773 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 675 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:41,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1217 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:41,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:41,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:41,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3863636363636365) internal successors, (976), 704 states have internal predecessors, (976), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 988 transitions. [2024-11-16 10:50:41,783 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 988 transitions. Word has length 455 [2024-11-16 10:50:41,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:41,784 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 988 transitions. [2024-11-16 10:50:41,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 988 transitions. [2024-11-16 10:50:41,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-16 10:50:41,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:41,786 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] [2024-11-16 10:50:41,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-16 10:50:41,786 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:41,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:41,786 INFO L85 PathProgramCache]: Analyzing trace with hash 784061910, now seen corresponding path program 1 times [2024-11-16 10:50:41,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:41,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019107221] [2024-11-16 10:50:41,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:41,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:42,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:42,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:42,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:42,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-11-16 10:50:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:42,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-16 10:50:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:42,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-11-16 10:50:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:42,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:42,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019107221] [2024-11-16 10:50:42,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019107221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:42,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:42,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:42,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169623540] [2024-11-16 10:50:42,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:42,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:42,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:42,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:42,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:42,331 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:42,532 INFO L93 Difference]: Finished difference Result 1167 states and 1624 transitions. [2024-11-16 10:50:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:42,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 456 [2024-11-16 10:50:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:42,534 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:42,534 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:42,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:42,535 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 1211 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:42,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 1210 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:42,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:42,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3849431818181819) internal successors, (975), 704 states have internal predecessors, (975), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:42,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 987 transitions. [2024-11-16 10:50:42,545 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 987 transitions. Word has length 456 [2024-11-16 10:50:42,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:42,545 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 987 transitions. [2024-11-16 10:50:42,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:42,546 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 987 transitions. [2024-11-16 10:50:42,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-16 10:50:42,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:42,547 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] [2024-11-16 10:50:42,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-16 10:50:42,548 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:42,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:42,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1806809721, now seen corresponding path program 1 times [2024-11-16 10:50:42,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:42,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69715543] [2024-11-16 10:50:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:42,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-11-16 10:50:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-11-16 10:50:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-16 10:50:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:43,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:43,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69715543] [2024-11-16 10:50:43,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69715543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:43,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:43,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:43,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188149197] [2024-11-16 10:50:43,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:43,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:43,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:43,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:43,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:43,102 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:43,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:43,277 INFO L93 Difference]: Finished difference Result 1167 states and 1622 transitions. [2024-11-16 10:50:43,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:43,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 457 [2024-11-16 10:50:43,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:43,279 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:43,279 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:43,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:43,280 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 644 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:43,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1249 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:43,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:43,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:43,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3835227272727273) internal successors, (974), 704 states have internal predecessors, (974), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:43,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 986 transitions. [2024-11-16 10:50:43,290 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 986 transitions. Word has length 457 [2024-11-16 10:50:43,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:43,291 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 986 transitions. [2024-11-16 10:50:43,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:43,291 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 986 transitions. [2024-11-16 10:50:43,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-16 10:50:43,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:43,293 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] [2024-11-16 10:50:43,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-16 10:50:43,293 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:43,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:43,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1427801017, now seen corresponding path program 1 times [2024-11-16 10:50:43,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:43,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869677408] [2024-11-16 10:50:43,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:43,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-11-16 10:50:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-11-16 10:50:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-11-16 10:50:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:43,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:43,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869677408] [2024-11-16 10:50:43,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869677408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:43,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:43,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:43,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617726518] [2024-11-16 10:50:43,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:43,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:43,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:43,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:43,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:43,887 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:44,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:44,084 INFO L93 Difference]: Finished difference Result 1167 states and 1620 transitions. [2024-11-16 10:50:44,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:44,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 458 [2024-11-16 10:50:44,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:44,087 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:44,087 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:44,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:44,088 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 636 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:44,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1249 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:44,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:44,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:44,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3821022727272727) internal successors, (973), 704 states have internal predecessors, (973), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 985 transitions. [2024-11-16 10:50:44,098 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 985 transitions. Word has length 458 [2024-11-16 10:50:44,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:44,098 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 985 transitions. [2024-11-16 10:50:44,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:44,098 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 985 transitions. [2024-11-16 10:50:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-16 10:50:44,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:44,100 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] [2024-11-16 10:50:44,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-16 10:50:44,100 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:44,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:44,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1785437848, now seen corresponding path program 1 times [2024-11-16 10:50:44,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:44,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260829878] [2024-11-16 10:50:44,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:44,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:44,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:44,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:44,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:44,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-11-16 10:50:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:44,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-11-16 10:50:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:44,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-11-16 10:50:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:44,738 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:44,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:44,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260829878] [2024-11-16 10:50:44,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260829878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:44,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:44,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:44,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114065307] [2024-11-16 10:50:44,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:44,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:44,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:44,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:44,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:44,741 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:44,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:44,935 INFO L93 Difference]: Finished difference Result 1167 states and 1618 transitions. [2024-11-16 10:50:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:44,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 459 [2024-11-16 10:50:44,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:44,938 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:44,938 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:44,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:44,939 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 628 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:44,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 1249 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:44,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:44,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:44,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3806818181818181) internal successors, (972), 704 states have internal predecessors, (972), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:44,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 984 transitions. [2024-11-16 10:50:44,957 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 984 transitions. Word has length 459 [2024-11-16 10:50:44,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:44,957 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 984 transitions. [2024-11-16 10:50:44,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:44,958 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 984 transitions. [2024-11-16 10:50:44,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-16 10:50:44,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:44,961 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] [2024-11-16 10:50:44,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-16 10:50:44,961 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:44,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:44,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1708566584, now seen corresponding path program 1 times [2024-11-16 10:50:44,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:44,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298479416] [2024-11-16 10:50:44,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:44,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:45,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:45,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:45,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:45,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-11-16 10:50:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:45,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-16 10:50:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:45,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-16 10:50:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:45,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:45,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298479416] [2024-11-16 10:50:45,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298479416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:45,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:45,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:45,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088248003] [2024-11-16 10:50:45,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:45,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:45,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:45,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:45,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:45,601 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:45,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:45,773 INFO L93 Difference]: Finished difference Result 1167 states and 1616 transitions. [2024-11-16 10:50:45,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:45,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 460 [2024-11-16 10:50:45,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:45,775 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:45,775 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:45,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:45,776 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 620 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:45,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1249 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:45,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:45,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3792613636363635) internal successors, (971), 704 states have internal predecessors, (971), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:45,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 983 transitions. [2024-11-16 10:50:45,786 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 983 transitions. Word has length 460 [2024-11-16 10:50:45,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:45,786 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 983 transitions. [2024-11-16 10:50:45,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:45,786 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 983 transitions. [2024-11-16 10:50:45,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-16 10:50:45,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:45,788 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] [2024-11-16 10:50:45,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-16 10:50:45,788 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:45,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:45,788 INFO L85 PathProgramCache]: Analyzing trace with hash -159931095, now seen corresponding path program 1 times [2024-11-16 10:50:45,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:45,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296900876] [2024-11-16 10:50:45,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:45,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:46,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:46,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:46,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:46,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-11-16 10:50:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:46,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-16 10:50:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:46,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-11-16 10:50:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:46,412 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:46,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:46,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296900876] [2024-11-16 10:50:46,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296900876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:46,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:46,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:46,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446836912] [2024-11-16 10:50:46,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:46,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:46,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:46,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:46,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:46,414 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:46,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:46,573 INFO L93 Difference]: Finished difference Result 1167 states and 1614 transitions. [2024-11-16 10:50:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:46,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 461 [2024-11-16 10:50:46,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:46,575 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:46,575 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:46,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:46,576 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1109 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:46,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 1260 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:50:46,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:46,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3778409090909092) internal successors, (970), 704 states have internal predecessors, (970), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:46,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 982 transitions. [2024-11-16 10:50:46,586 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 982 transitions. Word has length 461 [2024-11-16 10:50:46,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:46,586 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 982 transitions. [2024-11-16 10:50:46,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:46,586 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 982 transitions. [2024-11-16 10:50:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-16 10:50:46,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:46,588 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] [2024-11-16 10:50:46,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-16 10:50:46,588 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:46,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash -611149399, now seen corresponding path program 1 times [2024-11-16 10:50:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:46,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717464183] [2024-11-16 10:50:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-16 10:50:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-16 10:50:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-16 10:50:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:47,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:47,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717464183] [2024-11-16 10:50:47,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717464183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:47,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:47,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:47,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556661943] [2024-11-16 10:50:47,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:47,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:47,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:47,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:47,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:47,190 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:47,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:47,348 INFO L93 Difference]: Finished difference Result 1167 states and 1612 transitions. [2024-11-16 10:50:47,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:47,348 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 [2024-11-16 10:50:47,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:47,350 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:47,350 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:47,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:47,350 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 1093 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:47,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 1260 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:50:47,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:47,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:47,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3764204545454546) internal successors, (969), 704 states have internal predecessors, (969), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:47,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 981 transitions. [2024-11-16 10:50:47,361 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 981 transitions. Word has length 462 [2024-11-16 10:50:47,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:47,361 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 981 transitions. [2024-11-16 10:50:47,361 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) [2024-11-16 10:50:47,361 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 981 transitions. [2024-11-16 10:50:47,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-16 10:50:47,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:47,363 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] [2024-11-16 10:50:47,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-16 10:50:47,363 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:47,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:47,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1362912966, now seen corresponding path program 1 times [2024-11-16 10:50:47,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:47,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890805211] [2024-11-16 10:50:47,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:47,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-11-16 10:50:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-16 10:50:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-11-16 10:50:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:47,988 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:47,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:47,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890805211] [2024-11-16 10:50:47,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890805211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:47,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:47,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:47,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398043669] [2024-11-16 10:50:47,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:47,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:47,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:47,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:47,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:47,990 INFO L87 Difference]: Start difference. First operand 712 states and 981 transitions. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:48,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:48,267 INFO L93 Difference]: Finished difference Result 1167 states and 1610 transitions. [2024-11-16 10:50:48,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:48,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 463 [2024-11-16 10:50:48,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:48,269 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:48,269 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:48,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:48,270 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 1033 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:48,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 966 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:50:48,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:48,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.375) internal successors, (968), 704 states have internal predecessors, (968), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 980 transitions. [2024-11-16 10:50:48,280 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 980 transitions. Word has length 463 [2024-11-16 10:50:48,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:48,280 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 980 transitions. [2024-11-16 10:50:48,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:48,281 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 980 transitions. [2024-11-16 10:50:48,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-16 10:50:48,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:48,282 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] [2024-11-16 10:50:48,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-16 10:50:48,283 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:48,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash -583233382, now seen corresponding path program 1 times [2024-11-16 10:50:48,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:48,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288538975] [2024-11-16 10:50:48,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:48,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:49,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:49,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:49,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:49,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-16 10:50:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:49,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-16 10:50:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:49,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-11-16 10:50:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:49,303 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:49,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:49,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288538975] [2024-11-16 10:50:49,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288538975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:49,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:49,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:49,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132165582] [2024-11-16 10:50:49,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:49,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:49,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:49,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:49,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:49,305 INFO L87 Difference]: Start difference. First operand 712 states and 980 transitions. Second operand has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:49,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:49,457 INFO L93 Difference]: Finished difference Result 1167 states and 1608 transitions. [2024-11-16 10:50:49,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:49,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 464 [2024-11-16 10:50:49,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:49,458 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:49,458 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:49,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:49,459 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 495 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:49,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1258 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:50:49,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:49,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:49,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3735795454545454) internal successors, (967), 704 states have internal predecessors, (967), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:49,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 979 transitions. [2024-11-16 10:50:49,472 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 979 transitions. Word has length 464 [2024-11-16 10:50:49,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:49,473 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 979 transitions. [2024-11-16 10:50:49,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 979 transitions. [2024-11-16 10:50:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-16 10:50:49,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:49,475 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] [2024-11-16 10:50:49,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-16 10:50:49,475 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:49,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:49,475 INFO L85 PathProgramCache]: Analyzing trace with hash -401237315, now seen corresponding path program 1 times [2024-11-16 10:50:49,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:49,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114394421] [2024-11-16 10:50:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:49,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:50,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:50,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:50,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:50,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-16 10:50:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:50,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-16 10:50:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:50,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-11-16 10:50:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:50,569 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:50,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:50,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114394421] [2024-11-16 10:50:50,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114394421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:50,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:50,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:50,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92817846] [2024-11-16 10:50:50,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:50,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:50,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:50,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:50,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:50,572 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:50,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:50,804 INFO L93 Difference]: Finished difference Result 1167 states and 1606 transitions. [2024-11-16 10:50:50,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:50,805 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 [2024-11-16 10:50:50,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:50,806 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:50,806 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:50,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:50,807 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 654 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:50,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 1241 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:50,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:50,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:50,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3721590909090908) internal successors, (966), 704 states have internal predecessors, (966), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:50,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 978 transitions. [2024-11-16 10:50:50,825 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 978 transitions. Word has length 465 [2024-11-16 10:50:50,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:50,826 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 978 transitions. [2024-11-16 10:50:50,826 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) [2024-11-16 10:50:50,826 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 978 transitions. [2024-11-16 10:50:50,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-16 10:50:50,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:50,830 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] [2024-11-16 10:50:50,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-16 10:50:50,830 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:50,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:50,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1222220709, now seen corresponding path program 1 times [2024-11-16 10:50:50,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:50,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643106188] [2024-11-16 10:50:50,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:50,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:51,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:51,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:51,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:51,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-11-16 10:50:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:51,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-16 10:50:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:51,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-11-16 10:50:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:51,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:51,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643106188] [2024-11-16 10:50:51,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643106188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:51,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:51,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:51,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5230079] [2024-11-16 10:50:51,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:51,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:51,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:51,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:51,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:51,734 INFO L87 Difference]: Start difference. First operand 712 states and 978 transitions. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:51,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:51,937 INFO L93 Difference]: Finished difference Result 1167 states and 1604 transitions. [2024-11-16 10:50:51,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:51,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 466 [2024-11-16 10:50:51,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:51,939 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:51,939 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:51,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:51,940 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 653 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:51,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1241 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:51,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3707386363636365) internal successors, (965), 704 states have internal predecessors, (965), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:51,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 977 transitions. [2024-11-16 10:50:51,949 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 977 transitions. Word has length 466 [2024-11-16 10:50:51,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:51,949 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 977 transitions. [2024-11-16 10:50:51,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:51,950 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 977 transitions. [2024-11-16 10:50:51,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-16 10:50:51,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:51,952 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] [2024-11-16 10:50:51,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-16 10:50:51,952 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:51,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:51,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1056288210, now seen corresponding path program 1 times [2024-11-16 10:50:51,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:51,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157360133] [2024-11-16 10:50:51,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:51,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:52,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:52,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:52,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:52,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-16 10:50:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:52,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-11-16 10:50:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:52,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-11-16 10:50:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:52,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:52,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157360133] [2024-11-16 10:50:52,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157360133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:52,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:52,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:52,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752367255] [2024-11-16 10:50:52,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:52,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:52,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:52,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:52,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:52,872 INFO L87 Difference]: Start difference. First operand 712 states and 977 transitions. Second operand has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:53,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:53,055 INFO L93 Difference]: Finished difference Result 1167 states and 1602 transitions. [2024-11-16 10:50:53,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:53,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 467 [2024-11-16 10:50:53,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:53,057 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:53,057 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:53,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:53,058 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 504 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:53,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 1234 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:53,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:53,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3693181818181819) internal successors, (964), 704 states have internal predecessors, (964), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 976 transitions. [2024-11-16 10:50:53,069 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 976 transitions. Word has length 467 [2024-11-16 10:50:53,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:53,069 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 976 transitions. [2024-11-16 10:50:53,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:50:53,070 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 976 transitions. [2024-11-16 10:50:53,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-16 10:50:53,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:53,072 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] [2024-11-16 10:50:53,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-16 10:50:53,072 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:53,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:53,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1599019686, now seen corresponding path program 1 times [2024-11-16 10:50:53,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:53,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877297375] [2024-11-16 10:50:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:53,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:53,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:53,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:53,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:53,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-11-16 10:50:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:53,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-11-16 10:50:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:53,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-11-16 10:50:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:53,993 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:53,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:53,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877297375] [2024-11-16 10:50:53,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877297375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:53,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:53,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:53,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509584266] [2024-11-16 10:50:53,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:53,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:53,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:53,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:53,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:53,995 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:54,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:54,219 INFO L93 Difference]: Finished difference Result 1167 states and 1600 transitions. [2024-11-16 10:50:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:54,220 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 [2024-11-16 10:50:54,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:54,221 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:54,221 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:54,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:54,222 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 636 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:54,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1195 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:54,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:54,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:54,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3678977272727273) internal successors, (963), 704 states have internal predecessors, (963), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:54,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 975 transitions. [2024-11-16 10:50:54,232 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 975 transitions. Word has length 468 [2024-11-16 10:50:54,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:54,233 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 975 transitions. [2024-11-16 10:50:54,233 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) [2024-11-16 10:50:54,233 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 975 transitions. [2024-11-16 10:50:54,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-16 10:50:54,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:54,235 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] [2024-11-16 10:50:54,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-16 10:50:54,235 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:54,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:54,235 INFO L85 PathProgramCache]: Analyzing trace with hash -916306533, now seen corresponding path program 1 times [2024-11-16 10:50:54,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:54,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106190920] [2024-11-16 10:50:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:55,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:55,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:55,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:55,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-11-16 10:50:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:55,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-16 10:50:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:55,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-11-16 10:50:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:55,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:55,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106190920] [2024-11-16 10:50:55,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106190920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:55,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:55,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:55,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357827582] [2024-11-16 10:50:55,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:55,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:55,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:55,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:55,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:55,135 INFO L87 Difference]: Start difference. First operand 712 states and 975 transitions. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 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) [2024-11-16 10:50:55,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:55,355 INFO L93 Difference]: Finished difference Result 1167 states and 1598 transitions. [2024-11-16 10:50:55,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:55,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 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 [2024-11-16 10:50:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:55,357 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:55,357 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:55,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:55,358 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 1200 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:55,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 1188 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:55,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:55,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3664772727272727) internal successors, (962), 704 states have internal predecessors, (962), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:55,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 974 transitions. [2024-11-16 10:50:55,392 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 974 transitions. Word has length 469 [2024-11-16 10:50:55,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:55,392 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 974 transitions. [2024-11-16 10:50:55,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 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) [2024-11-16 10:50:55,392 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 974 transitions. [2024-11-16 10:50:55,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-16 10:50:55,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:55,394 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] [2024-11-16 10:50:55,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-16 10:50:55,395 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:55,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:55,395 INFO L85 PathProgramCache]: Analyzing trace with hash -14251915, now seen corresponding path program 1 times [2024-11-16 10:50:55,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:55,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142423615] [2024-11-16 10:50:55,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:55,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:56,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:56,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:56,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:56,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-16 10:50:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:56,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-11-16 10:50:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:56,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-11-16 10:50:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:56,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:56,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142423615] [2024-11-16 10:50:56,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142423615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:56,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:56,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:50:56,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87470918] [2024-11-16 10:50:56,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:56,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:50:56,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:56,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:50:56,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:50:56,414 INFO L87 Difference]: Start difference. First operand 712 states and 974 transitions. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 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) [2024-11-16 10:50:56,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:56,592 INFO L93 Difference]: Finished difference Result 1167 states and 1596 transitions. [2024-11-16 10:50:56,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:56,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 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 [2024-11-16 10:50:56,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:56,594 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:56,594 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:56,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:56,594 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 557 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:56,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1188 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:56,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:56,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:56,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3650568181818181) internal successors, (961), 704 states have internal predecessors, (961), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:56,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 973 transitions. [2024-11-16 10:50:56,604 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 973 transitions. Word has length 470 [2024-11-16 10:50:56,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:56,604 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 973 transitions. [2024-11-16 10:50:56,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 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) [2024-11-16 10:50:56,604 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 973 transitions. [2024-11-16 10:50:56,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-16 10:50:56,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:56,606 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] [2024-11-16 10:50:56,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-16 10:50:56,606 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:56,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:56,607 INFO L85 PathProgramCache]: Analyzing trace with hash -106510782, now seen corresponding path program 1 times [2024-11-16 10:50:56,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:56,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238331758] [2024-11-16 10:50:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:56,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:57,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:57,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:57,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:57,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-11-16 10:50:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:57,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-11-16 10:50:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:57,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-11-16 10:50:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:57,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:57,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238331758] [2024-11-16 10:50:57,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238331758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:57,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:57,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:57,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314701325] [2024-11-16 10:50:57,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:57,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:57,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:57,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:57,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:57,532 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:57,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:57,754 INFO L93 Difference]: Finished difference Result 1167 states and 1594 transitions. [2024-11-16 10:50:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:57,754 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 [2024-11-16 10:50:57,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:57,755 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:57,756 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:57,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:57,756 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 633 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:57,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1195 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:57,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:57,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:57,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3636363636363635) internal successors, (960), 704 states have internal predecessors, (960), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:50:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 972 transitions. [2024-11-16 10:50:57,765 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 972 transitions. Word has length 471 [2024-11-16 10:50:57,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:57,766 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 972 transitions. [2024-11-16 10:50:57,766 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) [2024-11-16 10:50:57,766 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 972 transitions. [2024-11-16 10:50:57,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-16 10:50:57,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:57,768 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] [2024-11-16 10:50:57,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-16 10:50:57,768 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:57,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:57,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1110586157, now seen corresponding path program 1 times [2024-11-16 10:50:57,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:57,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872394535] [2024-11-16 10:50:57,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:57,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:58,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:50:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:58,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:50:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:58,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:50:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:58,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-16 10:50:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:58,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-16 10:50:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:58,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-11-16 10:50:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:50:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:50:58,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:50:58,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872394535] [2024-11-16 10:50:58,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872394535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:50:58,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:50:58,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:50:58,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415034680] [2024-11-16 10:50:58,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:50:58,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:50:58,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:50:58,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:50:58,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:50:58,816 INFO L87 Difference]: Start difference. First operand 712 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) [2024-11-16 10:50:59,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:50:59,057 INFO L93 Difference]: Finished difference Result 1167 states and 1592 transitions. [2024-11-16 10:50:59,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:50:59,058 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 [2024-11-16 10:50:59,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:50:59,059 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:50:59,059 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:50:59,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:50:59,060 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 1170 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:50:59,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 1188 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:50:59,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:50:59,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:50:59,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3622159090909092) internal successors, (959), 704 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) [2024-11-16 10:50:59,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 971 transitions. [2024-11-16 10:50:59,075 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 971 transitions. Word has length 472 [2024-11-16 10:50:59,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:50:59,075 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 971 transitions. [2024-11-16 10:50:59,076 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) [2024-11-16 10:50:59,076 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 971 transitions. [2024-11-16 10:50:59,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-16 10:50:59,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:50:59,079 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] [2024-11-16 10:50:59,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-16 10:50:59,080 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:50:59,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:50:59,080 INFO L85 PathProgramCache]: Analyzing trace with hash -577109019, now seen corresponding path program 1 times [2024-11-16 10:50:59,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:50:59,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614493917] [2024-11-16 10:50:59,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:50:59,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:50:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:00,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:00,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:51:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:00,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:51:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:00,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-11-16 10:51:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:00,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-11-16 10:51:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:00,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-11-16 10:51:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:00,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:00,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614493917] [2024-11-16 10:51:00,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614493917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:00,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:00,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:00,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937113486] [2024-11-16 10:51:00,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:00,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:00,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:00,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:00,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:00,155 INFO L87 Difference]: Start difference. First operand 712 states and 971 transitions. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 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) [2024-11-16 10:51:00,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:00,363 INFO L93 Difference]: Finished difference Result 1167 states and 1590 transitions. [2024-11-16 10:51:00,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:00,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 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 [2024-11-16 10:51:00,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:00,364 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:51:00,364 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:51:00,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:00,365 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 1160 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:00,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 1188 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:00,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:51:00,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:51:00,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.3607954545454546) internal successors, (958), 704 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) [2024-11-16 10:51:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 970 transitions. [2024-11-16 10:51:00,374 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 970 transitions. Word has length 473 [2024-11-16 10:51:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:00,374 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 970 transitions. [2024-11-16 10:51:00,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 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) [2024-11-16 10:51:00,375 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 970 transitions. [2024-11-16 10:51:00,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-16 10:51:00,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:00,376 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] [2024-11-16 10:51:00,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-16 10:51:00,377 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:00,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:00,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1337809261, now seen corresponding path program 1 times [2024-11-16 10:51:00,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:00,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952040346] [2024-11-16 10:51:00,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:00,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:01,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:01,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:51:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:01,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:51:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:01,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-11-16 10:51:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:01,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-16 10:51:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:01,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-16 10:51:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:01,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:01,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952040346] [2024-11-16 10:51:01,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952040346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:01,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:01,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:01,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183608628] [2024-11-16 10:51:01,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:01,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:01,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:01,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:01,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:01,306 INFO L87 Difference]: Start difference. First operand 712 states and 970 transitions. Second operand has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:01,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:01,495 INFO L93 Difference]: Finished difference Result 1167 states and 1588 transitions. [2024-11-16 10:51:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:01,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 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 [2024-11-16 10:51:01,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:01,496 INFO L225 Difference]: With dead ends: 1167 [2024-11-16 10:51:01,496 INFO L226 Difference]: Without dead ends: 712 [2024-11-16 10:51:01,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:01,497 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 521 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:01,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1188 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:01,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-16 10:51:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-16 10:51:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 704 states have (on average 1.359375) internal successors, (957), 704 states have internal predecessors, (957), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 10:51:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 969 transitions. [2024-11-16 10:51:01,506 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 969 transitions. Word has length 474 [2024-11-16 10:51:01,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:01,506 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 969 transitions. [2024-11-16 10:51:01,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:01,506 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 969 transitions. [2024-11-16 10:51:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-16 10:51:01,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:01,508 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, 1] [2024-11-16 10:51:01,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-16 10:51:01,508 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:01,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:01,508 INFO L85 PathProgramCache]: Analyzing trace with hash 930027909, now seen corresponding path program 1 times [2024-11-16 10:51:01,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:01,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760877075] [2024-11-16 10:51:01,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:01,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:02,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:02,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:51:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:02,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:51:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:02,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-11-16 10:51:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:02,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-11-16 10:51:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:02,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-11-16 10:51:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:02,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:02,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760877075] [2024-11-16 10:51:02,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760877075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:02,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:02,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:51:02,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381797233] [2024-11-16 10:51:02,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:02,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:51:02,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:02,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:51:02,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:02,647 INFO L87 Difference]: Start difference. First operand 712 states and 969 transitions. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:03,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:03,105 INFO L93 Difference]: Finished difference Result 1689 states and 2301 transitions. [2024-11-16 10:51:03,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:51:03,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 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 475 [2024-11-16 10:51:03,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:03,107 INFO L225 Difference]: With dead ends: 1689 [2024-11-16 10:51:03,107 INFO L226 Difference]: Without dead ends: 1234 [2024-11-16 10:51:03,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:51:03,108 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 725 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:03,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 2234 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:51:03,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2024-11-16 10:51:03,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 1122. [2024-11-16 10:51:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1111 states have (on average 1.3537353735373536) internal successors, (1504), 1111 states have internal predecessors, (1504), 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) [2024-11-16 10:51:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1522 transitions. [2024-11-16 10:51:03,124 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1522 transitions. Word has length 475 [2024-11-16 10:51:03,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:03,125 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1522 transitions. [2024-11-16 10:51:03,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:03,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1522 transitions. [2024-11-16 10:51:03,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-16 10:51:03,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:03,127 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, 1, 1] [2024-11-16 10:51:03,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-16 10:51:03,128 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:03,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:03,128 INFO L85 PathProgramCache]: Analyzing trace with hash 828931975, now seen corresponding path program 1 times [2024-11-16 10:51:03,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:03,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515494007] [2024-11-16 10:51:03,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:03,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:04,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:04,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:51:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:04,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:51:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:04,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-11-16 10:51:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:04,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-11-16 10:51:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:04,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-11-16 10:51:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 10:51:04,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:04,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515494007] [2024-11-16 10:51:04,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515494007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:04,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:04,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:04,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134803402] [2024-11-16 10:51:04,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:04,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:04,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:04,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:04,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:04,685 INFO L87 Difference]: Start difference. First operand 1122 states and 1522 transitions. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 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) [2024-11-16 10:51:04,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:04,920 INFO L93 Difference]: Finished difference Result 2046 states and 2729 transitions. [2024-11-16 10:51:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:51:04,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 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 476 [2024-11-16 10:51:04,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:04,922 INFO L225 Difference]: With dead ends: 2046 [2024-11-16 10:51:04,922 INFO L226 Difference]: Without dead ends: 1353 [2024-11-16 10:51:04,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:04,923 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 19 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:04,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2488 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:04,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2024-11-16 10:51:04,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1347. [2024-11-16 10:51:04,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1336 states have (on average 1.31437125748503) internal successors, (1756), 1336 states have internal predecessors, (1756), 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) [2024-11-16 10:51:04,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1774 transitions. [2024-11-16 10:51:04,939 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1774 transitions. Word has length 476 [2024-11-16 10:51:04,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:04,939 INFO L471 AbstractCegarLoop]: Abstraction has 1347 states and 1774 transitions. [2024-11-16 10:51:04,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 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) [2024-11-16 10:51:04,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1774 transitions. [2024-11-16 10:51:04,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-11-16 10:51:04,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:04,942 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] [2024-11-16 10:51:04,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-16 10:51:04,943 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:04,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:04,943 INFO L85 PathProgramCache]: Analyzing trace with hash 594441937, now seen corresponding path program 1 times [2024-11-16 10:51:04,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:04,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473321296] [2024-11-16 10:51:04,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:04,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:06,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:06,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:51:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:06,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 10:51:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:06,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-16 10:51:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:06,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-11-16 10:51:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:06,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-11-16 10:51:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:06,150 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-16 10:51:06,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:06,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473321296] [2024-11-16 10:51:06,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473321296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:06,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:06,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:51:06,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997145361] [2024-11-16 10:51:06,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:06,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:51:06,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:06,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:51:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:51:06,152 INFO L87 Difference]: Start difference. First operand 1347 states and 1774 transitions. Second operand has 7 states, 7 states have (on average 52.42857142857143) internal successors, (367), 7 states have internal predecessors, (367), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 10:51:06,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:06,632 INFO L93 Difference]: Finished difference Result 2499 states and 3265 transitions. [2024-11-16 10:51:06,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:51:06,633 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 478 [2024-11-16 10:51:06,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:06,634 INFO L225 Difference]: With dead ends: 2499 [2024-11-16 10:51:06,635 INFO L226 Difference]: Without dead ends: 1359 [2024-11-16 10:51:06,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-16 10:51:06,636 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 742 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:06,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1864 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:51:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2024-11-16 10:51:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1353. [2024-11-16 10:51:06,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 1342 states have (on average 1.3107302533532041) internal successors, (1759), 1342 states have internal predecessors, (1759), 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) [2024-11-16 10:51:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1777 transitions. [2024-11-16 10:51:06,650 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1777 transitions. Word has length 478 [2024-11-16 10:51:06,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:06,651 INFO L471 AbstractCegarLoop]: Abstraction has 1353 states and 1777 transitions. [2024-11-16 10:51:06,651 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 10:51:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1777 transitions. [2024-11-16 10:51:06,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-16 10:51:06,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:06,653 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] [2024-11-16 10:51:06,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-16 10:51:06,653 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:06,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:06,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2129292139, now seen corresponding path program 1 times [2024-11-16 10:51:06,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:06,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424094534] [2024-11-16 10:51:06,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:06,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:07,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:07,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 10:51:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:07,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 10:51:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:07,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-16 10:51:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:07,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-11-16 10:51:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:07,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-11-16 10:51:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-16 10:51:07,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:07,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424094534] [2024-11-16 10:51:07,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424094534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:07,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:07,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:51:07,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469831909] [2024-11-16 10:51:07,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:07,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:51:07,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:07,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:51:07,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:51:07,960 INFO L87 Difference]: Start difference. First operand 1353 states and 1777 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) [2024-11-16 10:51:08,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:08,445 INFO L93 Difference]: Finished difference Result 2539 states and 3313 transitions. [2024-11-16 10:51:08,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:51:08,445 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 480 [2024-11-16 10:51:08,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:08,447 INFO L225 Difference]: With dead ends: 2539 [2024-11-16 10:51:08,447 INFO L226 Difference]: Without dead ends: 1365 [2024-11-16 10:51:08,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-16 10:51:08,448 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 1437 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:08,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 1853 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:51:08,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2024-11-16 10:51:08,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1359. [2024-11-16 10:51:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1348 states have (on average 1.3071216617210681) internal successors, (1762), 1348 states have internal predecessors, (1762), 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) [2024-11-16 10:51:08,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1780 transitions. [2024-11-16 10:51:08,463 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1780 transitions. Word has length 480 [2024-11-16 10:51:08,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:08,463 INFO L471 AbstractCegarLoop]: Abstraction has 1359 states and 1780 transitions. [2024-11-16 10:51:08,463 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) [2024-11-16 10:51:08,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1780 transitions. [2024-11-16 10:51:08,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-16 10:51:08,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:08,466 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] [2024-11-16 10:51:08,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-16 10:51:08,466 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:08,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:08,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1667520753, now seen corresponding path program 1 times [2024-11-16 10:51:08,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:08,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775261003] [2024-11-16 10:51:08,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:08,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 10:51:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 10:51:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-16 10:51:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-11-16 10:51:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-11-16 10:51:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:10,110 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-16 10:51:10,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:10,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775261003] [2024-11-16 10:51:10,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775261003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:10,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:10,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:10,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549325565] [2024-11-16 10:51:10,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:10,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:10,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:10,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:10,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:10,116 INFO L87 Difference]: Start difference. First operand 1359 states and 1780 transitions. Second operand has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:10,457 INFO L93 Difference]: Finished difference Result 2407 states and 3115 transitions. [2024-11-16 10:51:10,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:51:10,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 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 482 [2024-11-16 10:51:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:10,460 INFO L225 Difference]: With dead ends: 2407 [2024-11-16 10:51:10,460 INFO L226 Difference]: Without dead ends: 1371 [2024-11-16 10:51:10,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:10,461 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 419 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:10,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1408 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:10,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-16 10:51:10,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1365. [2024-11-16 10:51:10,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1354 states have (on average 1.3057607090103398) internal successors, (1768), 1354 states have internal predecessors, (1768), 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) [2024-11-16 10:51:10,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1786 transitions. [2024-11-16 10:51:10,476 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1786 transitions. Word has length 482 [2024-11-16 10:51:10,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:10,476 INFO L471 AbstractCegarLoop]: Abstraction has 1365 states and 1786 transitions. [2024-11-16 10:51:10,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:10,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1786 transitions. [2024-11-16 10:51:10,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-16 10:51:10,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:10,479 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] [2024-11-16 10:51:10,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-16 10:51:10,479 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:10,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:10,480 INFO L85 PathProgramCache]: Analyzing trace with hash -115284335, now seen corresponding path program 1 times [2024-11-16 10:51:10,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:10,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123894491] [2024-11-16 10:51:10,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:10,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 10:51:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 10:51:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-11-16 10:51:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-11-16 10:51:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-11-16 10:51:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:11,684 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-16 10:51:11,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:11,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123894491] [2024-11-16 10:51:11,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123894491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:11,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:11,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:51:11,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125007461] [2024-11-16 10:51:11,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:11,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:51:11,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:11,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:51:11,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:11,686 INFO L87 Difference]: Start difference. First operand 1365 states and 1786 transitions. Second operand has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:11,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:11,998 INFO L93 Difference]: Finished difference Result 2403 states and 3105 transitions. [2024-11-16 10:51:11,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:11,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 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 482 [2024-11-16 10:51:11,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:12,000 INFO L225 Difference]: With dead ends: 2403 [2024-11-16 10:51:12,000 INFO L226 Difference]: Without dead ends: 1365 [2024-11-16 10:51:12,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:51:12,001 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 468 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:12,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 946 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 10:51:12,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2024-11-16 10:51:12,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1365. [2024-11-16 10:51:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1354 states have (on average 1.3013293943870015) internal successors, (1762), 1354 states have internal predecessors, (1762), 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) [2024-11-16 10:51:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1780 transitions. [2024-11-16 10:51:12,016 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1780 transitions. Word has length 482 [2024-11-16 10:51:12,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:12,016 INFO L471 AbstractCegarLoop]: Abstraction has 1365 states and 1780 transitions. [2024-11-16 10:51:12,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:12,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1780 transitions. [2024-11-16 10:51:12,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-16 10:51:12,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:12,019 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] [2024-11-16 10:51:12,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-16 10:51:12,019 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:12,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:12,019 INFO L85 PathProgramCache]: Analyzing trace with hash 675541873, now seen corresponding path program 1 times [2024-11-16 10:51:12,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:12,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897974400] [2024-11-16 10:51:12,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:12,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 10:51:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 10:51:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-16 10:51:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-11-16 10:51:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-11-16 10:51:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 10:51:13,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:13,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897974400] [2024-11-16 10:51:13,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897974400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:13,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:13,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:51:13,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882780896] [2024-11-16 10:51:13,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:13,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:51:13,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:13,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:51:13,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:13,306 INFO L87 Difference]: Start difference. First operand 1365 states and 1780 transitions. Second operand has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:13,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:13,862 INFO L93 Difference]: Finished difference Result 1924 states and 2517 transitions. [2024-11-16 10:51:13,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:51:13,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 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 [2024-11-16 10:51:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:13,864 INFO L225 Difference]: With dead ends: 1924 [2024-11-16 10:51:13,864 INFO L226 Difference]: Without dead ends: 1388 [2024-11-16 10:51:13,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:51:13,865 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 1016 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:13,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 1857 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:51:13,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-11-16 10:51:13,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1366. [2024-11-16 10:51:13,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1355 states have (on average 1.3011070110701106) internal successors, (1763), 1355 states have internal predecessors, (1763), 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) [2024-11-16 10:51:13,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1781 transitions. [2024-11-16 10:51:13,881 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1781 transitions. Word has length 484 [2024-11-16 10:51:13,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:13,881 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 1781 transitions. [2024-11-16 10:51:13,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:13,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1781 transitions. [2024-11-16 10:51:13,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-16 10:51:13,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:13,884 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] [2024-11-16 10:51:13,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-16 10:51:13,884 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:13,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:13,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1512368687, now seen corresponding path program 1 times [2024-11-16 10:51:13,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:13,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511720368] [2024-11-16 10:51:13,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:13,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 10:51:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 10:51:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 10:51:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-11-16 10:51:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-11-16 10:51:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-11-16 10:51:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-16 10:51:15,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:15,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511720368] [2024-11-16 10:51:15,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511720368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:15,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:15,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 10:51:15,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622453655] [2024-11-16 10:51:15,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:15,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 10:51:15,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:15,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 10:51:15,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:51:15,334 INFO L87 Difference]: Start difference. First operand 1366 states and 1781 transitions. Second operand has 8 states, 8 states have (on average 46.875) internal successors, (375), 8 states have internal predecessors, (375), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:16,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:16,037 INFO L93 Difference]: Finished difference Result 3098 states and 4024 transitions. [2024-11-16 10:51:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 10:51:16,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.875) internal successors, (375), 8 states have internal predecessors, (375), 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 [2024-11-16 10:51:16,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:16,040 INFO L225 Difference]: With dead ends: 3098 [2024-11-16 10:51:16,040 INFO L226 Difference]: Without dead ends: 2382 [2024-11-16 10:51:16,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-16 10:51:16,041 INFO L432 NwaCegarLoop]: 1467 mSDtfsCounter, 1093 mSDsluCounter, 7530 mSDsCounter, 0 mSdLazyCounter, 2124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 8997 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:16,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 8997 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2124 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 10:51:16,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2024-11-16 10:51:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 1439. [2024-11-16 10:51:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1425 states have (on average 1.303157894736842) internal successors, (1857), 1425 states have internal predecessors, (1857), 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) [2024-11-16 10:51:16,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1881 transitions. [2024-11-16 10:51:16,060 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1881 transitions. Word has length 484 [2024-11-16 10:51:16,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:16,060 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1881 transitions. [2024-11-16 10:51:16,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.875) internal successors, (375), 8 states have internal predecessors, (375), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1881 transitions. [2024-11-16 10:51:16,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-11-16 10:51:16,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:16,062 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, 1] [2024-11-16 10:51:16,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-16 10:51:16,062 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:16,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:16,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1186289678, now seen corresponding path program 1 times [2024-11-16 10:51:16,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:16,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275582567] [2024-11-16 10:51:16,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:16,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 10:51:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 10:51:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-16 10:51:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-11-16 10:51:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-11-16 10:51:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 111 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-16 10:51:17,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:17,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275582567] [2024-11-16 10:51:17,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275582567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 10:51:17,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368351472] [2024-11-16 10:51:17,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:17,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 10:51:17,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:51:17,637 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) [2024-11-16 10:51:17,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 10:51:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:19,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 2971 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-16 10:51:19,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 10:51:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 10:51:19,709 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 10:51:19,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368351472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:19,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 10:51:19,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2024-11-16 10:51:19,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709522073] [2024-11-16 10:51:19,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:19,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 10:51:19,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 10:51:19,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-16 10:51:19,711 INFO L87 Difference]: Start difference. First operand 1439 states and 1881 transitions. Second operand has 8 states, 8 states have (on average 57.25) internal successors, (458), 8 states have internal predecessors, (458), 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) [2024-11-16 10:51:20,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:20,345 INFO L93 Difference]: Finished difference Result 3291 states and 4320 transitions. [2024-11-16 10:51:20,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 10:51:20,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 57.25) internal successors, (458), 8 states have internal predecessors, (458), 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 485 [2024-11-16 10:51:20,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:20,348 INFO L225 Difference]: With dead ends: 3291 [2024-11-16 10:51:20,348 INFO L226 Difference]: Without dead ends: 2516 [2024-11-16 10:51:20,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-16 10:51:20,350 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 2346 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:20,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 2216 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 10:51:20,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2024-11-16 10:51:20,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 1978. [2024-11-16 10:51:20,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1955 states have (on average 1.2797953964194373) internal successors, (2502), 1955 states have internal predecessors, (2502), 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) [2024-11-16 10:51:20,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2544 transitions. [2024-11-16 10:51:20,382 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2544 transitions. Word has length 485 [2024-11-16 10:51:20,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:20,382 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2544 transitions. [2024-11-16 10:51:20,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 57.25) internal successors, (458), 8 states have internal predecessors, (458), 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) [2024-11-16 10:51:20,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2544 transitions. [2024-11-16 10:51:20,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-11-16 10:51:20,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:20,386 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, 1] [2024-11-16 10:51:20,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 10:51:20,586 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,SelfDestructingSolverStorable67 [2024-11-16 10:51:20,587 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:20,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:20,587 INFO L85 PathProgramCache]: Analyzing trace with hash -564832635, now seen corresponding path program 1 times [2024-11-16 10:51:20,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:20,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336088192] [2024-11-16 10:51:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:20,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 10:51:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 10:51:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-11-16 10:51:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-11-16 10:51:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-11-16 10:51:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-16 10:51:21,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:21,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336088192] [2024-11-16 10:51:21,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336088192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:21,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:21,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:21,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000613818] [2024-11-16 10:51:21,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:21,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:21,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:21,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:21,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:21,266 INFO L87 Difference]: Start difference. First operand 1978 states and 2544 transitions. Second operand has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:21,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:21,502 INFO L93 Difference]: Finished difference Result 3157 states and 4063 transitions. [2024-11-16 10:51:21,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:51:21,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 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 485 [2024-11-16 10:51:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:21,504 INFO L225 Difference]: With dead ends: 3157 [2024-11-16 10:51:21,505 INFO L226 Difference]: Without dead ends: 2068 [2024-11-16 10:51:21,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:21,506 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 16 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:21,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2482 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:51:21,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2024-11-16 10:51:21,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 2068. [2024-11-16 10:51:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2068 states, 2045 states have (on average 1.287041564792176) internal successors, (2632), 2045 states have internal predecessors, (2632), 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) [2024-11-16 10:51:21,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2674 transitions. [2024-11-16 10:51:21,534 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2674 transitions. Word has length 485 [2024-11-16 10:51:21,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:21,535 INFO L471 AbstractCegarLoop]: Abstraction has 2068 states and 2674 transitions. [2024-11-16 10:51:21,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:21,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2674 transitions. [2024-11-16 10:51:21,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-11-16 10:51:21,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:21,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:51:21,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-16 10:51:21,538 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:21,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:21,539 INFO L85 PathProgramCache]: Analyzing trace with hash 364860812, now seen corresponding path program 1 times [2024-11-16 10:51:21,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:21,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516291961] [2024-11-16 10:51:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:21,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 10:51:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 10:51:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-16 10:51:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-11-16 10:51:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-11-16 10:51:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:22,237 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-16 10:51:22,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:22,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516291961] [2024-11-16 10:51:22,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516291961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:22,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:22,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:51:22,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531191276] [2024-11-16 10:51:22,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:22,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:51:22,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:22,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:51:22,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:22,239 INFO L87 Difference]: Start difference. First operand 2068 states and 2674 transitions. Second operand has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:22,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:22,412 INFO L93 Difference]: Finished difference Result 3565 states and 4549 transitions. [2024-11-16 10:51:22,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:51:22,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 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 486 [2024-11-16 10:51:22,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:22,415 INFO L225 Difference]: With dead ends: 3565 [2024-11-16 10:51:22,415 INFO L226 Difference]: Without dead ends: 2078 [2024-11-16 10:51:22,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:51:22,417 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 0 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:22,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1864 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:51:22,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2024-11-16 10:51:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 2078. [2024-11-16 10:51:22,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 2055 states have (on average 1.2856447688564476) internal successors, (2642), 2055 states have internal predecessors, (2642), 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) [2024-11-16 10:51:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 2684 transitions. [2024-11-16 10:51:22,450 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 2684 transitions. Word has length 486 [2024-11-16 10:51:22,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:22,451 INFO L471 AbstractCegarLoop]: Abstraction has 2078 states and 2684 transitions. [2024-11-16 10:51:22,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-16 10:51:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 2684 transitions. [2024-11-16 10:51:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-11-16 10:51:22,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:22,454 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, 1] [2024-11-16 10:51:22,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-16 10:51:22,455 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:22,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:22,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2069145096, now seen corresponding path program 1 times [2024-11-16 10:51:22,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:22,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949856469] [2024-11-16 10:51:22,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:22,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 10:51:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 10:51:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 10:51:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-16 10:51:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-11-16 10:51:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-11-16 10:51:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:23,957 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-16 10:51:23,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:23,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949856469] [2024-11-16 10:51:23,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949856469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:23,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:23,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:51:23,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549858986] [2024-11-16 10:51:23,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:23,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:51:23,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:23,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:51:23,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:23,960 INFO L87 Difference]: Start difference. First operand 2078 states and 2684 transitions. Second operand has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 6 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:24,478 INFO L93 Difference]: Finished difference Result 3917 states and 5025 transitions. [2024-11-16 10:51:24,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:51:24,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 6 states have internal predecessors, (355), 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 486 [2024-11-16 10:51:24,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:24,480 INFO L225 Difference]: With dead ends: 3917 [2024-11-16 10:51:24,480 INFO L226 Difference]: Without dead ends: 2092 [2024-11-16 10:51:24,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 10:51:24,482 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 702 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:24,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 1853 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:51:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2024-11-16 10:51:24,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2085. [2024-11-16 10:51:24,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 2062 states have (on average 1.2846750727449079) internal successors, (2649), 2062 states have internal predecessors, (2649), 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) [2024-11-16 10:51:24,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 2691 transitions. [2024-11-16 10:51:24,511 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 2691 transitions. Word has length 486 [2024-11-16 10:51:24,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:24,512 INFO L471 AbstractCegarLoop]: Abstraction has 2085 states and 2691 transitions. [2024-11-16 10:51:24,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 6 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 10:51:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 2691 transitions. [2024-11-16 10:51:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-11-16 10:51:24,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:24,515 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, 1, 1, 1, 1] [2024-11-16 10:51:24,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-16 10:51:24,515 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:24,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:24,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1057451910, now seen corresponding path program 1 times [2024-11-16 10:51:24,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:24,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685249850] [2024-11-16 10:51:24,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:24,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 10:51:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 10:51:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 10:51:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-11-16 10:51:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-11-16 10:51:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-11-16 10:51:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-16 10:51:26,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:26,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685249850] [2024-11-16 10:51:26,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685249850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:51:26,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:51:26,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:51:26,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234580099] [2024-11-16 10:51:26,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:51:26,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:51:26,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:51:26,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:51:26,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:51:26,043 INFO L87 Difference]: Start difference. First operand 2085 states and 2691 transitions. Second operand has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 10:51:26,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:51:26,524 INFO L93 Difference]: Finished difference Result 3709 states and 4745 transitions. [2024-11-16 10:51:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:51:26,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 488 [2024-11-16 10:51:26,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:51:26,526 INFO L225 Difference]: With dead ends: 3709 [2024-11-16 10:51:26,526 INFO L226 Difference]: Without dead ends: 2099 [2024-11-16 10:51:26,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 10:51:26,527 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 681 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 10:51:26,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1853 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 10:51:26,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2024-11-16 10:51:26,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2092. [2024-11-16 10:51:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2092 states, 2069 states have (on average 1.2837119381343645) internal successors, (2656), 2069 states have internal predecessors, (2656), 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) [2024-11-16 10:51:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2698 transitions. [2024-11-16 10:51:26,554 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2698 transitions. Word has length 488 [2024-11-16 10:51:26,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:51:26,555 INFO L471 AbstractCegarLoop]: Abstraction has 2092 states and 2698 transitions. [2024-11-16 10:51:26,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 10:51:26,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2698 transitions. [2024-11-16 10:51:26,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2024-11-16 10:51:26,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:51:26,558 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, 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] [2024-11-16 10:51:26,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-16 10:51:26,558 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:51:26,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:51:26,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2110376218, now seen corresponding path program 1 times [2024-11-16 10:51:26,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:51:26,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744095714] [2024-11-16 10:51:26,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:26,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:51:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 10:51:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 10:51:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 10:51:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-16 10:51:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-16 10:51:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2024-11-16 10:51:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:51:28,856 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 85 proven. 17 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-16 10:51:28,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:51:28,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744095714] [2024-11-16 10:51:28,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744095714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 10:51:28,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050584151] [2024-11-16 10:51:28,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:51:28,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 10:51:28,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:51:28,859 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) [2024-11-16 10:51:28,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process