./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-47.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/hardness-nfm22/hardness_operatoramount_amount500_file-47.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash bce8a1c6d77e62a944a85cff651afbec2f58c05a59aa99727e257a59bda2e393 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:02:17,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:02:17,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:02:17,234 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:02:17,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:02:17,266 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:02:17,267 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:02:17,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:02:17,268 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:02:17,270 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:02:17,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:02:17,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:02:17,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:02:17,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:02:17,276 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:02:17,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:02:17,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:02:17,278 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:02:17,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:02:17,278 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:02:17,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:02:17,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:02:17,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:02:17,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:02:17,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:02:17,282 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:02:17,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:02:17,282 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:02:17,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:02:17,283 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:02:17,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:02:17,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:02:17,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:02:17,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:02:17,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:02:17,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:02:17,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:02:17,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:02:17,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:02:17,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:02:17,287 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:02:17,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:02:17,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce8a1c6d77e62a944a85cff651afbec2f58c05a59aa99727e257a59bda2e393 [2024-11-22 12:02:17,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:02:17,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:02:17,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:02:17,594 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:02:17,595 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:02:17,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-47.i [2024-11-22 12:02:19,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:02:19,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:02:19,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-47.i [2024-11-22 12:02:19,420 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb7df203/a2ccc42854854b4ab8becf4cb7b328fa/FLAG7e5a23d1f [2024-11-22 12:02:19,671 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb7df203/a2ccc42854854b4ab8becf4cb7b328fa [2024-11-22 12:02:19,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:02:19,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:02:19,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:02:19,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:02:19,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:02:19,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:02:19" (1/1) ... [2024-11-22 12:02:19,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59984d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:19, skipping insertion in model container [2024-11-22 12:02:19,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:02:19" (1/1) ... [2024-11-22 12:02:19,739 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:02:19,964 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/hardness-nfm22/hardness_operatoramount_amount500_file-47.i[916,929] [2024-11-22 12:02:20,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:02:20,196 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:02:20,208 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/hardness-nfm22/hardness_operatoramount_amount500_file-47.i[916,929] [2024-11-22 12:02:20,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:02:20,345 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:02:20,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20 WrapperNode [2024-11-22 12:02:20,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:02:20,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:02:20,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:02:20,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:02:20,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,487 INFO L138 Inliner]: procedures = 26, calls = 73, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 697 [2024-11-22 12:02:20,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:02:20,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:02:20,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:02:20,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:02:20,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,522 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,574 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]. [2024-11-22 12:02:20,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:02:20,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:02:20,681 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:02:20,681 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:02:20,682 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (1/1) ... [2024-11-22 12:02:20,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:02:20,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:02:20,714 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) [2024-11-22 12:02:20,716 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 [2024-11-22 12:02:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:02:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:02:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:02:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:02:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:02:20,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:02:20,881 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:02:20,883 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:02:22,114 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-22 12:02:22,115 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:02:22,140 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:02:22,142 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:02:22,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:02:22 BoogieIcfgContainer [2024-11-22 12:02:22,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:02:22,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:02:22,145 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:02:22,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:02:22,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:02:19" (1/3) ... [2024-11-22 12:02:22,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c0cc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:02:22, skipping insertion in model container [2024-11-22 12:02:22,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:02:20" (2/3) ... [2024-11-22 12:02:22,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c0cc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:02:22, skipping insertion in model container [2024-11-22 12:02:22,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:02:22" (3/3) ... [2024-11-22 12:02:22,152 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-47.i [2024-11-22 12:02:22,169 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:02:22,170 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:02:22,255 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:02:22,261 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;@5fd9aa7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:02:22,262 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:02:22,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 271 states, 208 states have (on average 1.5625) internal successors, (325), 209 states have internal predecessors, (325), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-22 12:02:22,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:22,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:22,300 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:22,300 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:22,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:22,307 INFO L85 PathProgramCache]: Analyzing trace with hash -43665173, now seen corresponding path program 1 times [2024-11-22 12:02:22,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:22,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019759691] [2024-11-22 12:02:22,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:22,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:23,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2024-11-22 12:02:23,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:23,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019759691] [2024-11-22 12:02:23,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019759691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:02:23,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606536639] [2024-11-22 12:02:23,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:23,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:02:23,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:02:23,082 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) [2024-11-22 12:02:23,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:02:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:23,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:02:23,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:02:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2024-11-22 12:02:23,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:02:23,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606536639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:23,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:02:23,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:02:23,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855768089] [2024-11-22 12:02:23,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:23,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:02:23,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:23,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:02:23,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:02:23,609 INFO L87 Difference]: Start difference. First operand has 271 states, 208 states have (on average 1.5625) internal successors, (325), 209 states have internal predecessors, (325), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 2 states, 2 states have (on average 66.5) internal successors, (133), 2 states have internal predecessors, (133), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-22 12:02:23,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:23,665 INFO L93 Difference]: Finished difference Result 535 states and 944 transitions. [2024-11-22 12:02:23,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:02:23,668 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 66.5) internal successors, (133), 2 states have internal predecessors, (133), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) Word has length 428 [2024-11-22 12:02:23,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:23,678 INFO L225 Difference]: With dead ends: 535 [2024-11-22 12:02:23,678 INFO L226 Difference]: Without dead ends: 267 [2024-11-22 12:02:23,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:02:23,689 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:23,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:02:23,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-22 12:02:23,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2024-11-22 12:02:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 205 states have (on average 1.5414634146341464) internal successors, (316), 205 states have internal predecessors, (316), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-22 12:02:23,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 436 transitions. [2024-11-22 12:02:23,792 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 436 transitions. Word has length 428 [2024-11-22 12:02:23,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:23,795 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 436 transitions. [2024-11-22 12:02:23,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 66.5) internal successors, (133), 2 states have internal predecessors, (133), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-22 12:02:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 436 transitions. [2024-11-22 12:02:23,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:23,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:23,813 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:23,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 12:02:24,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 12:02:24,018 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:24,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:24,019 INFO L85 PathProgramCache]: Analyzing trace with hash -88292305, now seen corresponding path program 1 times [2024-11-22 12:02:24,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:24,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119138832] [2024-11-22 12:02:24,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:24,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:24,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:24,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119138832] [2024-11-22 12:02:24,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119138832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:24,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:24,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:02:24,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570009764] [2024-11-22 12:02:24,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:24,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:02:24,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:24,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:02:24,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:02:24,519 INFO L87 Difference]: Start difference. First operand 267 states and 436 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:24,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:24,637 INFO L93 Difference]: Finished difference Result 780 states and 1275 transitions. [2024-11-22 12:02:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:02:24,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 428 [2024-11-22 12:02:24,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:24,667 INFO L225 Difference]: With dead ends: 780 [2024-11-22 12:02:24,667 INFO L226 Difference]: Without dead ends: 516 [2024-11-22 12:02:24,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:02:24,670 INFO L432 NwaCegarLoop]: 615 mSDtfsCounter, 396 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:24,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1039 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:02:24,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-22 12:02:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 318. [2024-11-22 12:02:24,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 256 states have (on average 1.5703125) internal successors, (402), 256 states have internal predecessors, (402), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-22 12:02:24,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 522 transitions. [2024-11-22 12:02:24,719 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 522 transitions. Word has length 428 [2024-11-22 12:02:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:24,723 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 522 transitions. [2024-11-22 12:02:24,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:24,724 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 522 transitions. [2024-11-22 12:02:24,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:24,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:24,733 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:24,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:02:24,734 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:24,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:24,736 INFO L85 PathProgramCache]: Analyzing trace with hash 590979949, now seen corresponding path program 1 times [2024-11-22 12:02:24,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:24,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081156878] [2024-11-22 12:02:24,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:24,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:25,168 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:25,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:25,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081156878] [2024-11-22 12:02:25,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081156878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:25,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:25,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:02:25,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886445471] [2024-11-22 12:02:25,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:25,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:02:25,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:25,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:02:25,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:02:25,174 INFO L87 Difference]: Start difference. First operand 318 states and 522 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:25,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:25,256 INFO L93 Difference]: Finished difference Result 945 states and 1554 transitions. [2024-11-22 12:02:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:02:25,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 428 [2024-11-22 12:02:25,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:25,267 INFO L225 Difference]: With dead ends: 945 [2024-11-22 12:02:25,267 INFO L226 Difference]: Without dead ends: 630 [2024-11-22 12:02:25,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:02:25,271 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 369 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:25,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1131 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:02:25,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-22 12:02:25,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 452. [2024-11-22 12:02:25,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 390 states have (on average 1.617948717948718) internal successors, (631), 390 states have internal predecessors, (631), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-22 12:02:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 751 transitions. [2024-11-22 12:02:25,311 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 751 transitions. Word has length 428 [2024-11-22 12:02:25,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:25,313 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 751 transitions. [2024-11-22 12:02:25,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 751 transitions. [2024-11-22 12:02:25,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:25,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:25,323 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:25,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:02:25,324 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:25,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:25,325 INFO L85 PathProgramCache]: Analyzing trace with hash -311282771, now seen corresponding path program 1 times [2024-11-22 12:02:25,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:25,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273429787] [2024-11-22 12:02:25,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:25,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:25,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:25,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273429787] [2024-11-22 12:02:25,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273429787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:25,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:25,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:02:25,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131612606] [2024-11-22 12:02:25,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:25,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:02:25,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:25,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:02:25,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:02:25,983 INFO L87 Difference]: Start difference. First operand 452 states and 751 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:26,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:26,394 INFO L93 Difference]: Finished difference Result 1351 states and 2248 transitions. [2024-11-22 12:02:26,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:02:26,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 428 [2024-11-22 12:02:26,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:26,406 INFO L225 Difference]: With dead ends: 1351 [2024-11-22 12:02:26,407 INFO L226 Difference]: Without dead ends: 902 [2024-11-22 12:02:26,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:02:26,410 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 371 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:26,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 1680 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:02:26,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-11-22 12:02:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 710. [2024-11-22 12:02:26,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 587 states have (on average 1.574105621805792) internal successors, (924), 587 states have internal predecessors, (924), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-22 12:02:26,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1164 transitions. [2024-11-22 12:02:26,485 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1164 transitions. Word has length 428 [2024-11-22 12:02:26,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:26,486 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 1164 transitions. [2024-11-22 12:02:26,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1164 transitions. [2024-11-22 12:02:26,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:26,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:26,499 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:26,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:02:26,500 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:26,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:26,501 INFO L85 PathProgramCache]: Analyzing trace with hash 41805611, now seen corresponding path program 1 times [2024-11-22 12:02:26,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:26,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173496124] [2024-11-22 12:02:26,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:26,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:27,181 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:27,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:27,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173496124] [2024-11-22 12:02:27,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173496124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:27,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:27,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:02:27,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350901551] [2024-11-22 12:02:27,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:27,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:02:27,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:27,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:02:27,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:02:27,186 INFO L87 Difference]: Start difference. First operand 710 states and 1164 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:27,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:27,501 INFO L93 Difference]: Finished difference Result 1498 states and 2480 transitions. [2024-11-22 12:02:27,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:02:27,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 428 [2024-11-22 12:02:27,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:27,508 INFO L225 Difference]: With dead ends: 1498 [2024-11-22 12:02:27,508 INFO L226 Difference]: Without dead ends: 902 [2024-11-22 12:02:27,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:02:27,512 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 355 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:27,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1288 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:02:27,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-11-22 12:02:27,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 710. [2024-11-22 12:02:27,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 587 states have (on average 1.5724020442930153) internal successors, (923), 587 states have internal predecessors, (923), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-22 12:02:27,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1163 transitions. [2024-11-22 12:02:27,574 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1163 transitions. Word has length 428 [2024-11-22 12:02:27,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:27,575 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 1163 transitions. [2024-11-22 12:02:27,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:27,575 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1163 transitions. [2024-11-22 12:02:27,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:27,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:27,578 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:27,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:02:27,579 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:27,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:27,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1890033379, now seen corresponding path program 1 times [2024-11-22 12:02:27,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:27,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625860648] [2024-11-22 12:02:27,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:27,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:29,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:29,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625860648] [2024-11-22 12:02:29,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625860648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:29,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:29,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:02:29,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189122061] [2024-11-22 12:02:29,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:29,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:02:29,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:29,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:02:29,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:02:29,848 INFO L87 Difference]: Start difference. First operand 710 states and 1163 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:30,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:30,313 INFO L93 Difference]: Finished difference Result 1710 states and 2830 transitions. [2024-11-22 12:02:30,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:02:30,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 428 [2024-11-22 12:02:30,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:30,322 INFO L225 Difference]: With dead ends: 1710 [2024-11-22 12:02:30,322 INFO L226 Difference]: Without dead ends: 1205 [2024-11-22 12:02:30,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:02:30,326 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 1044 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:30,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 2186 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:02:30,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2024-11-22 12:02:30,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1010. [2024-11-22 12:02:30,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 853 states have (on average 1.5849941383352872) internal successors, (1352), 854 states have internal predecessors, (1352), 153 states have call successors, (153), 3 states have call predecessors, (153), 3 states have return successors, (153), 152 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-22 12:02:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1658 transitions. [2024-11-22 12:02:30,404 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1658 transitions. Word has length 428 [2024-11-22 12:02:30,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:30,406 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1658 transitions. [2024-11-22 12:02:30,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:30,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1658 transitions. [2024-11-22 12:02:30,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:30,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:30,411 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:30,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:02:30,412 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:30,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:30,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2076679459, now seen corresponding path program 1 times [2024-11-22 12:02:30,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:30,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296171016] [2024-11-22 12:02:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:30,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:31,431 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:31,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:31,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296171016] [2024-11-22 12:02:31,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296171016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:31,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:31,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:02:31,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234159432] [2024-11-22 12:02:31,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:31,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:02:31,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:31,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:02:31,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:02:31,437 INFO L87 Difference]: Start difference. First operand 1010 states and 1658 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:31,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:31,745 INFO L93 Difference]: Finished difference Result 2085 states and 3449 transitions. [2024-11-22 12:02:31,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:02:31,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 428 [2024-11-22 12:02:31,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:31,755 INFO L225 Difference]: With dead ends: 2085 [2024-11-22 12:02:31,755 INFO L226 Difference]: Without dead ends: 1202 [2024-11-22 12:02:31,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:02:31,758 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 385 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:31,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1712 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:02:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2024-11-22 12:02:31,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1010. [2024-11-22 12:02:31,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 853 states have (on average 1.5826494724501758) internal successors, (1350), 854 states have internal predecessors, (1350), 153 states have call successors, (153), 3 states have call predecessors, (153), 3 states have return successors, (153), 152 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-22 12:02:31,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1656 transitions. [2024-11-22 12:02:31,844 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1656 transitions. Word has length 428 [2024-11-22 12:02:31,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:31,844 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1656 transitions. [2024-11-22 12:02:31,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:31,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1656 transitions. [2024-11-22 12:02:31,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:31,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:31,850 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:31,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:02:31,851 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:31,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:31,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1160449759, now seen corresponding path program 1 times [2024-11-22 12:02:31,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:31,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707993130] [2024-11-22 12:02:31,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:31,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:32,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:32,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707993130] [2024-11-22 12:02:32,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707993130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:32,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:32,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:02:32,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025214283] [2024-11-22 12:02:32,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:32,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:02:32,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:32,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:02:32,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:02:32,902 INFO L87 Difference]: Start difference. First operand 1010 states and 1656 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:33,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:33,146 INFO L93 Difference]: Finished difference Result 2354 states and 3888 transitions. [2024-11-22 12:02:33,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:02:33,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 428 [2024-11-22 12:02:33,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:33,157 INFO L225 Difference]: With dead ends: 2354 [2024-11-22 12:02:33,158 INFO L226 Difference]: Without dead ends: 1767 [2024-11-22 12:02:33,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:02:33,161 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 548 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:33,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1171 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:02:33,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-22 12:02:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1407. [2024-11-22 12:02:33,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1250 states have (on average 1.616) internal successors, (2020), 1251 states have internal predecessors, (2020), 153 states have call successors, (153), 3 states have call predecessors, (153), 3 states have return successors, (153), 152 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-22 12:02:33,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 2326 transitions. [2024-11-22 12:02:33,246 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 2326 transitions. Word has length 428 [2024-11-22 12:02:33,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:33,247 INFO L471 AbstractCegarLoop]: Abstraction has 1407 states and 2326 transitions. [2024-11-22 12:02:33,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:33,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 2326 transitions. [2024-11-22 12:02:33,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:33,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:33,252 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:33,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:02:33,252 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:33,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:33,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1300998369, now seen corresponding path program 1 times [2024-11-22 12:02:33,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:33,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113730568] [2024-11-22 12:02:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:33,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:35,193 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:35,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:35,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113730568] [2024-11-22 12:02:35,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113730568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:35,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:35,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:02:35,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006621122] [2024-11-22 12:02:35,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:35,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:02:35,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:35,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:02:35,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:02:35,196 INFO L87 Difference]: Start difference. First operand 1407 states and 2326 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:35,540 INFO L93 Difference]: Finished difference Result 3263 states and 5411 transitions. [2024-11-22 12:02:35,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:02:35,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 428 [2024-11-22 12:02:35,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:35,553 INFO L225 Difference]: With dead ends: 3263 [2024-11-22 12:02:35,553 INFO L226 Difference]: Without dead ends: 2406 [2024-11-22 12:02:35,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:02:35,558 INFO L432 NwaCegarLoop]: 639 mSDtfsCounter, 481 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:35,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1460 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:02:35,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2024-11-22 12:02:35,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2403. [2024-11-22 12:02:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2176 states have (on average 1.622702205882353) internal successors, (3531), 2179 states have internal predecessors, (3531), 221 states have call successors, (221), 5 states have call predecessors, (221), 5 states have return successors, (221), 218 states have call predecessors, (221), 221 states have call successors, (221) [2024-11-22 12:02:35,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 3973 transitions. [2024-11-22 12:02:35,674 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 3973 transitions. Word has length 428 [2024-11-22 12:02:35,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:35,675 INFO L471 AbstractCegarLoop]: Abstraction has 2403 states and 3973 transitions. [2024-11-22 12:02:35,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:35,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 3973 transitions. [2024-11-22 12:02:35,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:35,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:35,681 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:35,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:02:35,681 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:35,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:35,682 INFO L85 PathProgramCache]: Analyzing trace with hash -385181469, now seen corresponding path program 1 times [2024-11-22 12:02:35,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:35,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90835715] [2024-11-22 12:02:35,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:35,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:37,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:37,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90835715] [2024-11-22 12:02:37,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90835715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:37,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:37,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:02:37,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929262434] [2024-11-22 12:02:37,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:37,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:02:37,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:37,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:02:37,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:02:37,300 INFO L87 Difference]: Start difference. First operand 2403 states and 3973 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-22 12:02:39,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:39,187 INFO L93 Difference]: Finished difference Result 6888 states and 11477 transitions. [2024-11-22 12:02:39,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:02:39,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 428 [2024-11-22 12:02:39,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:39,213 INFO L225 Difference]: With dead ends: 6888 [2024-11-22 12:02:39,213 INFO L226 Difference]: Without dead ends: 5530 [2024-11-22 12:02:39,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:02:39,219 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 2864 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2864 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:39,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2864 Valid, 2641 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 12:02:39,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2024-11-22 12:02:39,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 4938. [2024-11-22 12:02:39,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4938 states, 4610 states have (on average 1.6446854663774404) internal successors, (7582), 4616 states have internal predecessors, (7582), 318 states have call successors, (318), 9 states have call predecessors, (318), 9 states have return successors, (318), 312 states have call predecessors, (318), 318 states have call successors, (318) [2024-11-22 12:02:39,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4938 states to 4938 states and 8218 transitions. [2024-11-22 12:02:39,420 INFO L78 Accepts]: Start accepts. Automaton has 4938 states and 8218 transitions. Word has length 428 [2024-11-22 12:02:39,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:39,421 INFO L471 AbstractCegarLoop]: Abstraction has 4938 states and 8218 transitions. [2024-11-22 12:02:39,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-22 12:02:39,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4938 states and 8218 transitions. [2024-11-22 12:02:39,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:39,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:39,429 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:39,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:02:39,429 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:39,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:39,430 INFO L85 PathProgramCache]: Analyzing trace with hash -2061088332, now seen corresponding path program 1 times [2024-11-22 12:02:39,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:39,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174943326] [2024-11-22 12:02:39,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:39,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:41,402 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:41,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:41,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174943326] [2024-11-22 12:02:41,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174943326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:41,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:41,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:02:41,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504356250] [2024-11-22 12:02:41,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:41,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:02:41,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:41,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:02:41,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:02:41,405 INFO L87 Difference]: Start difference. First operand 4938 states and 8218 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-22 12:02:43,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:43,198 INFO L93 Difference]: Finished difference Result 16587 states and 27524 transitions. [2024-11-22 12:02:43,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:02:43,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 428 [2024-11-22 12:02:43,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:43,250 INFO L225 Difference]: With dead ends: 16587 [2024-11-22 12:02:43,251 INFO L226 Difference]: Without dead ends: 13151 [2024-11-22 12:02:43,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:02:43,266 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 2864 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2864 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:43,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2864 Valid, 3374 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 12:02:43,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13151 states. [2024-11-22 12:02:43,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13151 to 9666. [2024-11-22 12:02:43,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9666 states, 9130 states have (on average 1.6468784227820372) internal successors, (15036), 9144 states have internal predecessors, (15036), 516 states have call successors, (516), 19 states have call predecessors, (516), 19 states have return successors, (516), 502 states have call predecessors, (516), 516 states have call successors, (516) [2024-11-22 12:02:43,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9666 states to 9666 states and 16068 transitions. [2024-11-22 12:02:43,720 INFO L78 Accepts]: Start accepts. Automaton has 9666 states and 16068 transitions. Word has length 428 [2024-11-22 12:02:43,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:43,721 INFO L471 AbstractCegarLoop]: Abstraction has 9666 states and 16068 transitions. [2024-11-22 12:02:43,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-22 12:02:43,726 INFO L276 IsEmpty]: Start isEmpty. Operand 9666 states and 16068 transitions. [2024-11-22 12:02:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-22 12:02:43,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:43,739 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:43,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:02:43,739 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:43,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:43,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1553980577, now seen corresponding path program 1 times [2024-11-22 12:02:43,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:43,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88726384] [2024-11-22 12:02:43,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:43,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:45,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:45,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88726384] [2024-11-22 12:02:45,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88726384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:45,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:45,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:02:45,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61484548] [2024-11-22 12:02:45,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:45,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:02:45,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:45,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:02:45,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:02:45,469 INFO L87 Difference]: Start difference. First operand 9666 states and 16068 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:46,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:46,664 INFO L93 Difference]: Finished difference Result 28975 states and 48516 transitions. [2024-11-22 12:02:46,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:02:46,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 428 [2024-11-22 12:02:46,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:46,731 INFO L225 Difference]: With dead ends: 28975 [2024-11-22 12:02:46,732 INFO L226 Difference]: Without dead ends: 21458 [2024-11-22 12:02:46,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:02:46,756 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 1037 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:46,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1218 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:02:46,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21458 states. [2024-11-22 12:02:47,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21458 to 12747. [2024-11-22 12:02:47,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12747 states, 12276 states have (on average 1.667562724014337) internal successors, (20471), 12288 states have internal predecessors, (20471), 448 states have call successors, (448), 22 states have call predecessors, (448), 22 states have return successors, (448), 436 states have call predecessors, (448), 448 states have call successors, (448) [2024-11-22 12:02:47,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12747 states to 12747 states and 21367 transitions. [2024-11-22 12:02:47,314 INFO L78 Accepts]: Start accepts. Automaton has 12747 states and 21367 transitions. Word has length 428 [2024-11-22 12:02:47,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:47,315 INFO L471 AbstractCegarLoop]: Abstraction has 12747 states and 21367 transitions. [2024-11-22 12:02:47,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:47,316 INFO L276 IsEmpty]: Start isEmpty. Operand 12747 states and 21367 transitions. [2024-11-22 12:02:47,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-22 12:02:47,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:47,330 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:47,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:02:47,330 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:47,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:47,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2014776137, now seen corresponding path program 1 times [2024-11-22 12:02:47,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:47,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331380887] [2024-11-22 12:02:47,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:47,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:49,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:49,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331380887] [2024-11-22 12:02:49,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331380887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:49,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:49,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:02:49,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292337601] [2024-11-22 12:02:49,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:49,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:02:49,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:49,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:02:49,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:02:49,063 INFO L87 Difference]: Start difference. First operand 12747 states and 21367 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:50,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:50,538 INFO L93 Difference]: Finished difference Result 28763 states and 48105 transitions. [2024-11-22 12:02:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:02:50,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 429 [2024-11-22 12:02:50,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:50,586 INFO L225 Difference]: With dead ends: 28763 [2024-11-22 12:02:50,586 INFO L226 Difference]: Without dead ends: 19327 [2024-11-22 12:02:50,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:02:50,612 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 2102 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:50,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2102 Valid, 2329 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 12:02:50,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19327 states. [2024-11-22 12:02:51,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19327 to 18447. [2024-11-22 12:02:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18447 states, 17874 states have (on average 1.665771511692962) internal successors, (29774), 17889 states have internal predecessors, (29774), 545 states have call successors, (545), 27 states have call predecessors, (545), 27 states have return successors, (545), 530 states have call predecessors, (545), 545 states have call successors, (545) [2024-11-22 12:02:51,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18447 states to 18447 states and 30864 transitions. [2024-11-22 12:02:51,262 INFO L78 Accepts]: Start accepts. Automaton has 18447 states and 30864 transitions. Word has length 429 [2024-11-22 12:02:51,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:51,263 INFO L471 AbstractCegarLoop]: Abstraction has 18447 states and 30864 transitions. [2024-11-22 12:02:51,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:02:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 18447 states and 30864 transitions. [2024-11-22 12:02:51,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-22 12:02:51,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:51,280 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:51,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:02:51,280 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:51,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:51,281 INFO L85 PathProgramCache]: Analyzing trace with hash 338869274, now seen corresponding path program 1 times [2024-11-22 12:02:51,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:51,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671620406] [2024-11-22 12:02:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:51,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:02:55,283 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:02:55,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:02:55,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671620406] [2024-11-22 12:02:55,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671620406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:02:55,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:02:55,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:02:55,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306389764] [2024-11-22 12:02:55,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:02:55,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:02:55,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:02:55,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:02:55,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:02:55,287 INFO L87 Difference]: Start difference. First operand 18447 states and 30864 transitions. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-22 12:02:57,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:02:57,875 INFO L93 Difference]: Finished difference Result 35334 states and 59485 transitions. [2024-11-22 12:02:57,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:02:57,876 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 429 [2024-11-22 12:02:57,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:02:57,930 INFO L225 Difference]: With dead ends: 35334 [2024-11-22 12:02:57,931 INFO L226 Difference]: Without dead ends: 21603 [2024-11-22 12:02:57,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-22 12:02:57,964 INFO L432 NwaCegarLoop]: 501 mSDtfsCounter, 1716 mSDsluCounter, 3141 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 12:02:57,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 3642 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 12:02:57,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21603 states. [2024-11-22 12:02:58,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21603 to 18497. [2024-11-22 12:02:58,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18497 states, 17924 states have (on average 1.6653090827940191) internal successors, (29849), 17939 states have internal predecessors, (29849), 545 states have call successors, (545), 27 states have call predecessors, (545), 27 states have return successors, (545), 530 states have call predecessors, (545), 545 states have call successors, (545) [2024-11-22 12:02:58,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18497 states to 18497 states and 30939 transitions. [2024-11-22 12:02:58,556 INFO L78 Accepts]: Start accepts. Automaton has 18497 states and 30939 transitions. Word has length 429 [2024-11-22 12:02:58,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:02:58,557 INFO L471 AbstractCegarLoop]: Abstraction has 18497 states and 30939 transitions. [2024-11-22 12:02:58,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-22 12:02:58,558 INFO L276 IsEmpty]: Start isEmpty. Operand 18497 states and 30939 transitions. [2024-11-22 12:02:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-22 12:02:58,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:02:58,577 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:02:58,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:02:58,577 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:02:58,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:02:58,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1059196892, now seen corresponding path program 1 times [2024-11-22 12:02:58,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:02:58,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571735657] [2024-11-22 12:02:58,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:02:58,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:02:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:00,235 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:03:00,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:00,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571735657] [2024-11-22 12:03:00,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571735657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:00,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:00,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:03:00,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119567589] [2024-11-22 12:03:00,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:00,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:03:00,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:00,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:03:00,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:03:00,239 INFO L87 Difference]: Start difference. First operand 18497 states and 30939 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:03:01,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:01,064 INFO L93 Difference]: Finished difference Result 30439 states and 51104 transitions. [2024-11-22 12:03:01,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:03:01,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 429 [2024-11-22 12:03:01,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:01,126 INFO L225 Difference]: With dead ends: 30439 [2024-11-22 12:03:01,126 INFO L226 Difference]: Without dead ends: 25718 [2024-11-22 12:03:01,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:03:01,148 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 866 mSDsluCounter, 2528 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:01,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 3224 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:03:01,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25718 states. [2024-11-22 12:03:01,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25718 to 19440. [2024-11-22 12:03:01,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19440 states, 18867 states have (on average 1.6686277627603752) internal successors, (31482), 18882 states have internal predecessors, (31482), 545 states have call successors, (545), 27 states have call predecessors, (545), 27 states have return successors, (545), 530 states have call predecessors, (545), 545 states have call successors, (545) [2024-11-22 12:03:01,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19440 states to 19440 states and 32572 transitions. [2024-11-22 12:03:01,688 INFO L78 Accepts]: Start accepts. Automaton has 19440 states and 32572 transitions. Word has length 429 [2024-11-22 12:03:01,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:01,692 INFO L471 AbstractCegarLoop]: Abstraction has 19440 states and 32572 transitions. [2024-11-22 12:03:01,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:03:01,692 INFO L276 IsEmpty]: Start isEmpty. Operand 19440 states and 32572 transitions. [2024-11-22 12:03:01,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-22 12:03:01,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:01,711 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:03:01,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:03:01,712 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:01,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:01,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1787527396, now seen corresponding path program 1 times [2024-11-22 12:03:01,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:01,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912513198] [2024-11-22 12:03:01,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:01,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:04,071 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:03:04,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:04,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912513198] [2024-11-22 12:03:04,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912513198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:04,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:04,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:03:04,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10873709] [2024-11-22 12:03:04,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:04,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:03:04,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:04,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:03:04,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:03:04,074 INFO L87 Difference]: Start difference. First operand 19440 states and 32572 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-22 12:03:05,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:05,412 INFO L93 Difference]: Finished difference Result 52115 states and 88100 transitions. [2024-11-22 12:03:05,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:03:05,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 429 [2024-11-22 12:03:05,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:05,503 INFO L225 Difference]: With dead ends: 52115 [2024-11-22 12:03:05,503 INFO L226 Difference]: Without dead ends: 38075 [2024-11-22 12:03:05,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:03:05,543 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 1067 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:05,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 2499 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 12:03:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38075 states. [2024-11-22 12:03:06,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38075 to 36976. [2024-11-22 12:03:06,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36976 states, 36078 states have (on average 1.6823271799988913) internal successors, (60695), 36098 states have internal predecessors, (60695), 855 states have call successors, (855), 42 states have call predecessors, (855), 42 states have return successors, (855), 835 states have call predecessors, (855), 855 states have call successors, (855) [2024-11-22 12:03:06,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36976 states to 36976 states and 62405 transitions. [2024-11-22 12:03:06,419 INFO L78 Accepts]: Start accepts. Automaton has 36976 states and 62405 transitions. Word has length 429 [2024-11-22 12:03:06,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:06,420 INFO L471 AbstractCegarLoop]: Abstraction has 36976 states and 62405 transitions. [2024-11-22 12:03:06,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 2 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-22 12:03:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand 36976 states and 62405 transitions. [2024-11-22 12:03:06,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-22 12:03:06,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:06,436 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:03:06,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 12:03:06,437 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:06,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:06,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1646838522, now seen corresponding path program 1 times [2024-11-22 12:03:06,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:06,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933399188] [2024-11-22 12:03:06,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:06,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:06,611 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:03:06,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:06,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933399188] [2024-11-22 12:03:06,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933399188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:06,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:06,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:03:06,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801682658] [2024-11-22 12:03:06,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:06,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:03:06,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:06,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:03:06,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:03:06,614 INFO L87 Difference]: Start difference. First operand 36976 states and 62405 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:03:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:07,071 INFO L93 Difference]: Finished difference Result 80992 states and 136760 transitions. [2024-11-22 12:03:07,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:03:07,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 430 [2024-11-22 12:03:07,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:07,167 INFO L225 Difference]: With dead ends: 80992 [2024-11-22 12:03:07,168 INFO L226 Difference]: Without dead ends: 44267 [2024-11-22 12:03:07,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:03:07,227 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 231 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:07,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 1088 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:03:07,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44267 states. [2024-11-22 12:03:07,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44267 to 23443. [2024-11-22 12:03:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23443 states, 22563 states have (on average 1.6686610823028853) internal successors, (37650), 22574 states have internal predecessors, (37650), 837 states have call successors, (837), 42 states have call predecessors, (837), 42 states have return successors, (837), 826 states have call predecessors, (837), 837 states have call successors, (837) [2024-11-22 12:03:07,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23443 states to 23443 states and 39324 transitions. [2024-11-22 12:03:07,949 INFO L78 Accepts]: Start accepts. Automaton has 23443 states and 39324 transitions. Word has length 430 [2024-11-22 12:03:07,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:07,951 INFO L471 AbstractCegarLoop]: Abstraction has 23443 states and 39324 transitions. [2024-11-22 12:03:07,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:03:07,951 INFO L276 IsEmpty]: Start isEmpty. Operand 23443 states and 39324 transitions. [2024-11-22 12:03:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-22 12:03:07,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:07,962 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:03:07,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 12:03:07,963 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:07,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:07,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1623915507, now seen corresponding path program 1 times [2024-11-22 12:03:07,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:07,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028352088] [2024-11-22 12:03:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:07,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:03:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-11-22 12:03:09,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:03:09,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028352088] [2024-11-22 12:03:09,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028352088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:03:09,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:03:09,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:03:09,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653524211] [2024-11-22 12:03:09,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:03:09,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:03:09,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:03:09,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:03:09,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:03:09,925 INFO L87 Difference]: Start difference. First operand 23443 states and 39324 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:03:11,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:03:11,137 INFO L93 Difference]: Finished difference Result 48624 states and 81757 transitions. [2024-11-22 12:03:11,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:03:11,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 430 [2024-11-22 12:03:11,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:03:11,197 INFO L225 Difference]: With dead ends: 48624 [2024-11-22 12:03:11,197 INFO L226 Difference]: Without dead ends: 27304 [2024-11-22 12:03:11,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:03:11,230 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 983 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:03:11,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 1937 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:03:11,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27304 states. [2024-11-22 12:03:11,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27304 to 25054. [2024-11-22 12:03:11,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25054 states, 24174 states have (on average 1.6679076693968726) internal successors, (40320), 24185 states have internal predecessors, (40320), 837 states have call successors, (837), 42 states have call predecessors, (837), 42 states have return successors, (837), 826 states have call predecessors, (837), 837 states have call successors, (837) [2024-11-22 12:03:12,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25054 states to 25054 states and 41994 transitions. [2024-11-22 12:03:12,013 INFO L78 Accepts]: Start accepts. Automaton has 25054 states and 41994 transitions. Word has length 430 [2024-11-22 12:03:12,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:03:12,014 INFO L471 AbstractCegarLoop]: Abstraction has 25054 states and 41994 transitions. [2024-11-22 12:03:12,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 1 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2024-11-22 12:03:12,015 INFO L276 IsEmpty]: Start isEmpty. Operand 25054 states and 41994 transitions. [2024-11-22 12:03:12,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-22 12:03:12,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:03:12,026 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:03:12,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 12:03:12,026 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:03:12,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:03:12,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1114442417, now seen corresponding path program 1 times [2024-11-22 12:03:12,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:03:12,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265930319] [2024-11-22 12:03:12,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:03:12,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:03:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat