./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-71.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-71.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 e959472285f399663fc0bc882cd6552115d96d83be84339b2009ae5a1e9a9882 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:04:29,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:04:29,556 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:04:29,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:04:29,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:04:29,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:04:29,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:04:29,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:04:29,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:04:29,592 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:04:29,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:04:29,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:04:29,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:04:29,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:04:29,602 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:04:29,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:04:29,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:04:29,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:04:29,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:04:29,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:04:29,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:04:29,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:04:29,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:04:29,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:04:29,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:04:29,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:04:29,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:04:29,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:04:29,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:04:29,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:04:29,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:04:29,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:04:29,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:04:29,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:04:29,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:04:29,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:04:29,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:04:29,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:04:29,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:04:29,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:04:29,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:04:29,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:04:29,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e959472285f399663fc0bc882cd6552115d96d83be84339b2009ae5a1e9a9882 [2024-11-22 12:04:29,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:04:29,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:04:29,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:04:29,846 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:04:29,846 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:04:29,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-71.i [2024-11-22 12:04:31,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:04:31,345 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:04:31,346 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-71.i [2024-11-22 12:04:31,366 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e789d362/ffec63bc004a4a29a1a88a48cb39cbbe/FLAG783dff0d2 [2024-11-22 12:04:31,382 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e789d362/ffec63bc004a4a29a1a88a48cb39cbbe [2024-11-22 12:04:31,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:04:31,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:04:31,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:04:31,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:04:31,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:04:31,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:31,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b53b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31, skipping insertion in model container [2024-11-22 12:04:31,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:31,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:04:31,568 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-71.i[916,929] [2024-11-22 12:04:31,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:04:31,858 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:04:31,870 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-71.i[916,929] [2024-11-22 12:04:31,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:04:31,989 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:04:31,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31 WrapperNode [2024-11-22 12:04:31,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:04:31,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:04:31,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:04:31,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:04:31,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,087 INFO L138 Inliner]: procedures = 26, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 728 [2024-11-22 12:04:32,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:04:32,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:04:32,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:04:32,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:04:32,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,111 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,168 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 12:04:32,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,201 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:04:32,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:04:32,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:04:32,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:04:32,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (1/1) ... [2024-11-22 12:04:32,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:04:32,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:04:32,257 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 12:04:32,259 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 12:04:32,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:04:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:04:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:04:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:04:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:04:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:04:32,404 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:04:32,406 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:04:33,321 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-11-22 12:04:33,322 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:04:33,341 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:04:33,341 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:04:33,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:04:33 BoogieIcfgContainer [2024-11-22 12:04:33,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:04:33,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:04:33,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:04:33,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:04:33,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:04:31" (1/3) ... [2024-11-22 12:04:33,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:04:33, skipping insertion in model container [2024-11-22 12:04:33,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:04:31" (2/3) ... [2024-11-22 12:04:33,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:04:33, skipping insertion in model container [2024-11-22 12:04:33,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:04:33" (3/3) ... [2024-11-22 12:04:33,350 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-71.i [2024-11-22 12:04:33,362 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:04:33,362 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:04:33,428 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:04:33,434 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;@1ca87973, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:04:33,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:04:33,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 280 states, 206 states have (on average 1.558252427184466) internal successors, (321), 207 states have internal predecessors, (321), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-22 12:04:33,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-22 12:04:33,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:33,462 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:33,463 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:33,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:33,467 INFO L85 PathProgramCache]: Analyzing trace with hash 89395286, now seen corresponding path program 1 times [2024-11-22 12:04:33,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:33,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502605477] [2024-11-22 12:04:33,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:33,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 9800 trivial. 0 not checked. [2024-11-22 12:04:34,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502605477] [2024-11-22 12:04:34,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502605477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:04:34,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113390317] [2024-11-22 12:04:34,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:34,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:04:34,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:04:34,123 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 12:04:34,125 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 12:04:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:34,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:04:34,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:04:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 9800 trivial. 0 not checked. [2024-11-22 12:04:34,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:04:34,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113390317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:34,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:04:34,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:04:34,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468764747] [2024-11-22 12:04:34,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:34,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:04:34,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:34,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:04:34,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:04:34,548 INFO L87 Difference]: Start difference. First operand has 280 states, 206 states have (on average 1.558252427184466) internal successors, (321), 207 states have internal predecessors, (321), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-22 12:04:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:34,594 INFO L93 Difference]: Finished difference Result 553 states and 991 transitions. [2024-11-22 12:04:34,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:04:34,596 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 2 states have call successors, (71) Word has length 479 [2024-11-22 12:04:34,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:34,604 INFO L225 Difference]: With dead ends: 553 [2024-11-22 12:04:34,604 INFO L226 Difference]: Without dead ends: 276 [2024-11-22 12:04:34,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 480 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 12:04:34,611 INFO L432 NwaCegarLoop]: 456 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, 456 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 12:04:34,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:04:34,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-22 12:04:34,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-11-22 12:04:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 203 states have internal predecessors, (314), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-22 12:04:34,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 456 transitions. [2024-11-22 12:04:34,681 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 456 transitions. Word has length 479 [2024-11-22 12:04:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:34,682 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 456 transitions. [2024-11-22 12:04:34,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-22 12:04:34,682 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 456 transitions. [2024-11-22 12:04:34,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-22 12:04:34,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:34,690 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:34,699 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 12:04:34,890 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 12:04:34,891 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:34,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:34,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1662909732, now seen corresponding path program 1 times [2024-11-22 12:04:34,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:34,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927492659] [2024-11-22 12:04:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:34,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:35,283 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:35,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:35,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927492659] [2024-11-22 12:04:35,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927492659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:35,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:35,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:04:35,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911765320] [2024-11-22 12:04:35,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:35,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:04:35,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:35,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:04:35,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:04:35,289 INFO L87 Difference]: Start difference. First operand 276 states and 456 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:35,387 INFO L93 Difference]: Finished difference Result 726 states and 1198 transitions. [2024-11-22 12:04:35,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:04:35,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-11-22 12:04:35,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:35,395 INFO L225 Difference]: With dead ends: 726 [2024-11-22 12:04:35,396 INFO L226 Difference]: Without dead ends: 453 [2024-11-22 12:04:35,397 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 12:04:35,398 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 288 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:35,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 894 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:04:35,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-22 12:04:35,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 450. [2024-11-22 12:04:35,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 344 states have (on average 1.558139534883721) internal successors, (536), 345 states have internal predecessors, (536), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 102 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-22 12:04:35,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 742 transitions. [2024-11-22 12:04:35,452 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 742 transitions. Word has length 479 [2024-11-22 12:04:35,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:35,455 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 742 transitions. [2024-11-22 12:04:35,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:35,456 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 742 transitions. [2024-11-22 12:04:35,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-22 12:04:35,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:35,460 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:35,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:04:35,460 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:35,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:35,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1229180646, now seen corresponding path program 1 times [2024-11-22 12:04:35,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:35,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535181764] [2024-11-22 12:04:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:35,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:35,778 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:35,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:35,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535181764] [2024-11-22 12:04:35,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535181764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:35,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:35,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:04:35,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993965070] [2024-11-22 12:04:35,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:35,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:04:35,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:35,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:04:35,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:04:35,781 INFO L87 Difference]: Start difference. First operand 450 states and 742 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:35,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:35,886 INFO L93 Difference]: Finished difference Result 1196 states and 1970 transitions. [2024-11-22 12:04:35,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:04:35,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-11-22 12:04:35,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:35,895 INFO L225 Difference]: With dead ends: 1196 [2024-11-22 12:04:35,897 INFO L226 Difference]: Without dead ends: 749 [2024-11-22 12:04:35,898 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 12:04:35,899 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 237 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:35,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 910 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:04:35,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-22 12:04:35,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 745. [2024-11-22 12:04:35,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 603 states have (on average 1.5655058043117744) internal successors, (944), 606 states have internal predecessors, (944), 137 states have call successors, (137), 4 states have call predecessors, (137), 4 states have return successors, (137), 134 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-22 12:04:35,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1218 transitions. [2024-11-22 12:04:35,942 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1218 transitions. Word has length 479 [2024-11-22 12:04:35,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:35,943 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 1218 transitions. [2024-11-22 12:04:35,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:35,944 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1218 transitions. [2024-11-22 12:04:35,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-22 12:04:35,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:35,948 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:35,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:04:35,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:35,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:35,949 INFO L85 PathProgramCache]: Analyzing trace with hash -303627752, now seen corresponding path program 1 times [2024-11-22 12:04:35,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:35,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950640928] [2024-11-22 12:04:35,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:35,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:36,792 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:36,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:36,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950640928] [2024-11-22 12:04:36,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950640928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:36,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:36,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:04:36,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983367641] [2024-11-22 12:04:36,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:36,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:04:36,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:36,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:04:36,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:04:36,796 INFO L87 Difference]: Start difference. First operand 745 states and 1218 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:37,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:37,249 INFO L93 Difference]: Finished difference Result 2116 states and 3471 transitions. [2024-11-22 12:04:37,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:04:37,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 479 [2024-11-22 12:04:37,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:37,261 INFO L225 Difference]: With dead ends: 2116 [2024-11-22 12:04:37,262 INFO L226 Difference]: Without dead ends: 1374 [2024-11-22 12:04:37,263 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 12:04:37,264 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 372 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:37,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1643 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:04:37,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2024-11-22 12:04:37,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 870. [2024-11-22 12:04:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 655 states have (on average 1.5236641221374045) internal successors, (998), 658 states have internal predecessors, (998), 208 states have call successors, (208), 6 states have call predecessors, (208), 6 states have return successors, (208), 205 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-22 12:04:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1414 transitions. [2024-11-22 12:04:37,333 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1414 transitions. Word has length 479 [2024-11-22 12:04:37,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:37,333 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1414 transitions. [2024-11-22 12:04:37,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:37,334 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1414 transitions. [2024-11-22 12:04:37,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-22 12:04:37,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:37,337 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:37,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:04:37,338 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:37,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:37,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1116888959, now seen corresponding path program 1 times [2024-11-22 12:04:37,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:37,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601507704] [2024-11-22 12:04:37,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:37,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:37,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:37,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601507704] [2024-11-22 12:04:37,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601507704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:37,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:37,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:37,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136469982] [2024-11-22 12:04:37,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:37,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:37,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:37,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:37,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:37,852 INFO L87 Difference]: Start difference. First operand 870 states and 1414 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:38,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:38,179 INFO L93 Difference]: Finished difference Result 2858 states and 4684 transitions. [2024-11-22 12:04:38,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:04:38,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 480 [2024-11-22 12:04:38,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:38,189 INFO L225 Difference]: With dead ends: 2858 [2024-11-22 12:04:38,190 INFO L226 Difference]: Without dead ends: 2115 [2024-11-22 12:04:38,191 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 12:04:38,192 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 576 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:38,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1572 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:04:38,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2024-11-22 12:04:38,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1999. [2024-11-22 12:04:38,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1643 states have (on average 1.5861229458307973) internal successors, (2606), 1649 states have internal predecessors, (2606), 345 states have call successors, (345), 10 states have call predecessors, (345), 10 states have return successors, (345), 339 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-22 12:04:38,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 3296 transitions. [2024-11-22 12:04:38,313 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 3296 transitions. Word has length 480 [2024-11-22 12:04:38,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:38,314 INFO L471 AbstractCegarLoop]: Abstraction has 1999 states and 3296 transitions. [2024-11-22 12:04:38,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:38,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 3296 transitions. [2024-11-22 12:04:38,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-22 12:04:38,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:38,318 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:38,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:04:38,318 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:38,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:38,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1370326242, now seen corresponding path program 1 times [2024-11-22 12:04:38,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:38,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928375711] [2024-11-22 12:04:38,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:38,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:38,757 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:38,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:38,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928375711] [2024-11-22 12:04:38,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928375711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:38,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:38,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:38,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722487642] [2024-11-22 12:04:38,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:38,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:38,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:38,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:38,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:38,760 INFO L87 Difference]: Start difference. First operand 1999 states and 3296 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:39,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:39,083 INFO L93 Difference]: Finished difference Result 3987 states and 6557 transitions. [2024-11-22 12:04:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:04:39,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 481 [2024-11-22 12:04:39,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:39,092 INFO L225 Difference]: With dead ends: 3987 [2024-11-22 12:04:39,092 INFO L226 Difference]: Without dead ends: 2115 [2024-11-22 12:04:39,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:04:39,096 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 571 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:39,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1575 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:04:39,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2024-11-22 12:04:39,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 2003. [2024-11-22 12:04:39,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1647 states have (on average 1.5810564663023678) internal successors, (2604), 1653 states have internal predecessors, (2604), 345 states have call successors, (345), 10 states have call predecessors, (345), 10 states have return successors, (345), 339 states have call predecessors, (345), 345 states have call successors, (345) [2024-11-22 12:04:39,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 3294 transitions. [2024-11-22 12:04:39,192 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 3294 transitions. Word has length 481 [2024-11-22 12:04:39,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:39,193 INFO L471 AbstractCegarLoop]: Abstraction has 2003 states and 3294 transitions. [2024-11-22 12:04:39,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:39,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 3294 transitions. [2024-11-22 12:04:39,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-22 12:04:39,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:39,196 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:39,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:04:39,197 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:39,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:39,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1944266174, now seen corresponding path program 1 times [2024-11-22 12:04:39,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:39,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831229990] [2024-11-22 12:04:39,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:39,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:40,291 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:40,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:40,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831229990] [2024-11-22 12:04:40,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831229990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:40,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:40,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:40,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934226603] [2024-11-22 12:04:40,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:40,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:40,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:40,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:40,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:40,294 INFO L87 Difference]: Start difference. First operand 2003 states and 3294 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:40,714 INFO L93 Difference]: Finished difference Result 5999 states and 9920 transitions. [2024-11-22 12:04:40,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:04:40,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 482 [2024-11-22 12:04:40,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:40,730 INFO L225 Difference]: With dead ends: 5999 [2024-11-22 12:04:40,730 INFO L226 Difference]: Without dead ends: 4124 [2024-11-22 12:04:40,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 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 12:04:40,734 INFO L432 NwaCegarLoop]: 518 mSDtfsCounter, 357 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:40,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1253 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:04:40,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4124 states. [2024-11-22 12:04:40,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4124 to 3852. [2024-11-22 12:04:40,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3214 states have (on average 1.5861854387056626) internal successors, (5098), 3226 states have internal predecessors, (5098), 619 states have call successors, (619), 18 states have call predecessors, (619), 18 states have return successors, (619), 607 states have call predecessors, (619), 619 states have call successors, (619) [2024-11-22 12:04:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 6336 transitions. [2024-11-22 12:04:40,932 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 6336 transitions. Word has length 482 [2024-11-22 12:04:40,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:40,933 INFO L471 AbstractCegarLoop]: Abstraction has 3852 states and 6336 transitions. [2024-11-22 12:04:40,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 6336 transitions. [2024-11-22 12:04:40,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-22 12:04:40,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:40,939 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:40,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:04:40,939 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:40,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:40,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2075941508, now seen corresponding path program 1 times [2024-11-22 12:04:40,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:40,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550236044] [2024-11-22 12:04:40,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:40,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:41,771 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:41,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:41,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550236044] [2024-11-22 12:04:41,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550236044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:41,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:41,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:41,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148303129] [2024-11-22 12:04:41,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:41,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:41,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:41,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:41,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:41,773 INFO L87 Difference]: Start difference. First operand 3852 states and 6336 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:41,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:41,993 INFO L93 Difference]: Finished difference Result 10730 states and 17682 transitions. [2024-11-22 12:04:41,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:04:41,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 482 [2024-11-22 12:04:41,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:42,019 INFO L225 Difference]: With dead ends: 10730 [2024-11-22 12:04:42,019 INFO L226 Difference]: Without dead ends: 7006 [2024-11-22 12:04:42,029 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 12:04:42,029 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 274 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:42,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1370 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:04:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7006 states. [2024-11-22 12:04:42,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7006 to 6988. [2024-11-22 12:04:42,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6988 states, 6094 states have (on average 1.6055136199540532) internal successors, (9784), 6122 states have internal predecessors, (9784), 859 states have call successors, (859), 34 states have call predecessors, (859), 34 states have return successors, (859), 831 states have call predecessors, (859), 859 states have call successors, (859) [2024-11-22 12:04:42,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6988 states to 6988 states and 11502 transitions. [2024-11-22 12:04:42,269 INFO L78 Accepts]: Start accepts. Automaton has 6988 states and 11502 transitions. Word has length 482 [2024-11-22 12:04:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:42,269 INFO L471 AbstractCegarLoop]: Abstraction has 6988 states and 11502 transitions. [2024-11-22 12:04:42,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 6988 states and 11502 transitions. [2024-11-22 12:04:42,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-22 12:04:42,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:42,276 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:42,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:04:42,277 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:42,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:42,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1598509260, now seen corresponding path program 1 times [2024-11-22 12:04:42,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:42,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679464875] [2024-11-22 12:04:42,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:42,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:43,098 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:43,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:43,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679464875] [2024-11-22 12:04:43,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679464875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:43,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:43,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:43,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971219490] [2024-11-22 12:04:43,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:43,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:43,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:43,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:43,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:43,101 INFO L87 Difference]: Start difference. First operand 6988 states and 11502 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:43,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:43,634 INFO L93 Difference]: Finished difference Result 22774 states and 37281 transitions. [2024-11-22 12:04:43,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:04:43,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 482 [2024-11-22 12:04:43,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:43,680 INFO L225 Difference]: With dead ends: 22774 [2024-11-22 12:04:43,681 INFO L226 Difference]: Without dead ends: 15914 [2024-11-22 12:04:43,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:04:43,694 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 567 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:43,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1425 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:04:43,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15914 states. [2024-11-22 12:04:44,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15914 to 13702. [2024-11-22 12:04:44,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13702 states, 11988 states have (on average 1.6011011011011012) internal successors, (19194), 12044 states have internal predecessors, (19194), 1647 states have call successors, (1647), 66 states have call predecessors, (1647), 66 states have return successors, (1647), 1591 states have call predecessors, (1647), 1647 states have call successors, (1647) [2024-11-22 12:04:44,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13702 states to 13702 states and 22488 transitions. [2024-11-22 12:04:44,369 INFO L78 Accepts]: Start accepts. Automaton has 13702 states and 22488 transitions. Word has length 482 [2024-11-22 12:04:44,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:44,370 INFO L471 AbstractCegarLoop]: Abstraction has 13702 states and 22488 transitions. [2024-11-22 12:04:44,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:44,370 INFO L276 IsEmpty]: Start isEmpty. Operand 13702 states and 22488 transitions. [2024-11-22 12:04:44,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-22 12:04:44,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:44,379 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:44,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:04:44,379 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:44,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:44,380 INFO L85 PathProgramCache]: Analyzing trace with hash 619121138, now seen corresponding path program 1 times [2024-11-22 12:04:44,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:44,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975604833] [2024-11-22 12:04:44,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:44,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:45,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:45,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975604833] [2024-11-22 12:04:45,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975604833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:45,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:45,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:45,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166200796] [2024-11-22 12:04:45,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:45,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:45,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:45,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:45,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:45,266 INFO L87 Difference]: Start difference. First operand 13702 states and 22488 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:46,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:46,054 INFO L93 Difference]: Finished difference Result 43588 states and 71192 transitions. [2024-11-22 12:04:46,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:04:46,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 482 [2024-11-22 12:04:46,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:46,224 INFO L225 Difference]: With dead ends: 43588 [2024-11-22 12:04:46,224 INFO L226 Difference]: Without dead ends: 29942 [2024-11-22 12:04:46,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 12:04:46,248 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 561 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:46,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1180 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:04:46,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29942 states. [2024-11-22 12:04:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29942 to 19898. [2024-11-22 12:04:47,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19898 states, 18183 states have (on average 1.623329483583567) internal successors, (29517), 18239 states have internal predecessors, (29517), 1647 states have call successors, (1647), 67 states have call predecessors, (1647), 67 states have return successors, (1647), 1591 states have call predecessors, (1647), 1647 states have call successors, (1647) [2024-11-22 12:04:47,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19898 states to 19898 states and 32811 transitions. [2024-11-22 12:04:47,287 INFO L78 Accepts]: Start accepts. Automaton has 19898 states and 32811 transitions. Word has length 482 [2024-11-22 12:04:47,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:47,288 INFO L471 AbstractCegarLoop]: Abstraction has 19898 states and 32811 transitions. [2024-11-22 12:04:47,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 19898 states and 32811 transitions. [2024-11-22 12:04:47,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-22 12:04:47,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:47,303 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:47,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:04:47,304 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:47,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:47,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1573061296, now seen corresponding path program 1 times [2024-11-22 12:04:47,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:47,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254687893] [2024-11-22 12:04:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:47,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:48,051 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:48,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:48,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254687893] [2024-11-22 12:04:48,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254687893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:48,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:48,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:48,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294302939] [2024-11-22 12:04:48,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:48,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:48,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:48,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:48,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:48,053 INFO L87 Difference]: Start difference. First operand 19898 states and 32811 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:49,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:49,129 INFO L93 Difference]: Finished difference Result 63778 states and 104395 transitions. [2024-11-22 12:04:49,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:04:49,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 482 [2024-11-22 12:04:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:49,214 INFO L225 Difference]: With dead ends: 63778 [2024-11-22 12:04:49,215 INFO L226 Difference]: Without dead ends: 44012 [2024-11-22 12:04:49,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:04:49,257 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 1071 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:49,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 2083 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:04:49,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44012 states. [2024-11-22 12:04:50,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44012 to 19898. [2024-11-22 12:04:50,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19898 states, 18183 states have (on average 1.6206896551724137) internal successors, (29469), 18239 states have internal predecessors, (29469), 1647 states have call successors, (1647), 67 states have call predecessors, (1647), 67 states have return successors, (1647), 1591 states have call predecessors, (1647), 1647 states have call successors, (1647) [2024-11-22 12:04:50,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19898 states to 19898 states and 32763 transitions. [2024-11-22 12:04:50,199 INFO L78 Accepts]: Start accepts. Automaton has 19898 states and 32763 transitions. Word has length 482 [2024-11-22 12:04:50,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:50,200 INFO L471 AbstractCegarLoop]: Abstraction has 19898 states and 32763 transitions. [2024-11-22 12:04:50,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:50,201 INFO L276 IsEmpty]: Start isEmpty. Operand 19898 states and 32763 transitions. [2024-11-22 12:04:50,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-22 12:04:50,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:50,311 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:50,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:04:50,312 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:50,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:50,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1335120590, now seen corresponding path program 1 times [2024-11-22 12:04:50,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:50,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787093489] [2024-11-22 12:04:50,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:50,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:51,053 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:51,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:51,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787093489] [2024-11-22 12:04:51,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787093489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:51,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:51,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:04:51,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871372655] [2024-11-22 12:04:51,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:51,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:04:51,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:51,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:04:51,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:04:51,056 INFO L87 Difference]: Start difference. First operand 19898 states and 32763 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:04:52,270 INFO L93 Difference]: Finished difference Result 67476 states and 110620 transitions. [2024-11-22 12:04:52,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:04:52,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 482 [2024-11-22 12:04:52,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:04:52,382 INFO L225 Difference]: With dead ends: 67476 [2024-11-22 12:04:52,382 INFO L226 Difference]: Without dead ends: 47710 [2024-11-22 12:04:52,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:04:52,425 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 560 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:04:52,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 1448 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:04:52,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47710 states. [2024-11-22 12:04:54,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47710 to 39090. [2024-11-22 12:04:54,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39090 states, 36479 states have (on average 1.609062748430604) internal successors, (58697), 36599 states have internal predecessors, (58697), 2479 states have call successors, (2479), 131 states have call predecessors, (2479), 131 states have return successors, (2479), 2359 states have call predecessors, (2479), 2479 states have call successors, (2479) [2024-11-22 12:04:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39090 states to 39090 states and 63655 transitions. [2024-11-22 12:04:54,213 INFO L78 Accepts]: Start accepts. Automaton has 39090 states and 63655 transitions. Word has length 482 [2024-11-22 12:04:54,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:04:54,213 INFO L471 AbstractCegarLoop]: Abstraction has 39090 states and 63655 transitions. [2024-11-22 12:04:54,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:04:54,214 INFO L276 IsEmpty]: Start isEmpty. Operand 39090 states and 63655 transitions. [2024-11-22 12:04:54,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-22 12:04:54,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:04:54,235 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:54,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:04:54,235 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:04:54,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:04:54,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1247638966, now seen corresponding path program 1 times [2024-11-22 12:04:54,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:04:54,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916763259] [2024-11-22 12:04:54,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:04:54,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:04:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:04:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:04:56,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:04:56,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916763259] [2024-11-22 12:04:56,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916763259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:04:56,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:04:56,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:04:56,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780797284] [2024-11-22 12:04:56,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:04:56,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:04:56,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:04:56,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:04:56,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:04:56,768 INFO L87 Difference]: Start difference. First operand 39090 states and 63655 transitions. Second operand has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 3 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2024-11-22 12:05:00,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:00,518 INFO L93 Difference]: Finished difference Result 100986 states and 164532 transitions. [2024-11-22 12:05:00,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:05:00,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 3 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 482 [2024-11-22 12:05:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:00,681 INFO L225 Difference]: With dead ends: 100986 [2024-11-22 12:05:00,682 INFO L226 Difference]: Without dead ends: 92980 [2024-11-22 12:05:00,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:05:00,723 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 1334 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:00,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 2325 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-22 12:05:00,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92980 states. [2024-11-22 12:05:03,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92980 to 83982. [2024-11-22 12:05:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83982 states, 80218 states have (on average 1.6247724949512579) internal successors, (130336), 80466 states have internal predecessors, (130336), 3503 states have call successors, (3503), 260 states have call predecessors, (3503), 260 states have return successors, (3503), 3255 states have call predecessors, (3503), 3503 states have call successors, (3503) [2024-11-22 12:05:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83982 states to 83982 states and 137342 transitions. [2024-11-22 12:05:03,485 INFO L78 Accepts]: Start accepts. Automaton has 83982 states and 137342 transitions. Word has length 482 [2024-11-22 12:05:03,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:03,486 INFO L471 AbstractCegarLoop]: Abstraction has 83982 states and 137342 transitions. [2024-11-22 12:05:03,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 3 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2024-11-22 12:05:03,486 INFO L276 IsEmpty]: Start isEmpty. Operand 83982 states and 137342 transitions. [2024-11-22 12:05:03,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-22 12:05:03,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:03,519 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:03,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:05:03,520 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:03,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:03,520 INFO L85 PathProgramCache]: Analyzing trace with hash 2086672628, now seen corresponding path program 1 times [2024-11-22 12:05:03,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:03,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388011434] [2024-11-22 12:05:03,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:03,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:05:04,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:04,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388011434] [2024-11-22 12:05:04,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388011434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:04,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:04,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:05:04,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338775999] [2024-11-22 12:05:04,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:04,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:05:04,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:04,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:05:04,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:05:04,398 INFO L87 Difference]: Start difference. First operand 83982 states and 137342 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:05:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:06,334 INFO L93 Difference]: Finished difference Result 182126 states and 297516 transitions. [2024-11-22 12:05:06,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:05:06,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) Word has length 482 [2024-11-22 12:05:06,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:06,539 INFO L225 Difference]: With dead ends: 182126 [2024-11-22 12:05:06,540 INFO L226 Difference]: Without dead ends: 98280 [2024-11-22 12:05:06,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 12:05:06,649 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 298 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:06,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1034 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:05:06,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98280 states. [2024-11-22 12:05:09,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98280 to 98246. [2024-11-22 12:05:09,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98246 states, 93214 states have (on average 1.6174608964318664) internal successors, (150770), 93522 states have internal predecessors, (150770), 4707 states have call successors, (4707), 324 states have call predecessors, (4707), 324 states have return successors, (4707), 4399 states have call predecessors, (4707), 4707 states have call successors, (4707) [2024-11-22 12:05:10,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98246 states to 98246 states and 160184 transitions. [2024-11-22 12:05:10,081 INFO L78 Accepts]: Start accepts. Automaton has 98246 states and 160184 transitions. Word has length 482 [2024-11-22 12:05:10,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:05:10,082 INFO L471 AbstractCegarLoop]: Abstraction has 98246 states and 160184 transitions. [2024-11-22 12:05:10,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 1 states have call predecessors, (71), 1 states have call successors, (71) [2024-11-22 12:05:10,082 INFO L276 IsEmpty]: Start isEmpty. Operand 98246 states and 160184 transitions. [2024-11-22 12:05:10,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-11-22 12:05:10,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:05:10,112 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:10,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:05:10,112 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:05:10,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:05:10,112 INFO L85 PathProgramCache]: Analyzing trace with hash 58086518, now seen corresponding path program 1 times [2024-11-22 12:05:10,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:05:10,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582359426] [2024-11-22 12:05:10,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:05:10,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:05:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:05:11,743 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2024-11-22 12:05:11,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:05:11,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582359426] [2024-11-22 12:05:11,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582359426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:05:11,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:05:11,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:05:11,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722823503] [2024-11-22 12:05:11,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:05:11,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:05:11,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:05:11,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:05:11,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:05:11,746 INFO L87 Difference]: Start difference. First operand 98246 states and 160184 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 3 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2024-11-22 12:05:17,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:05:17,388 INFO L93 Difference]: Finished difference Result 218602 states and 353815 transitions. [2024-11-22 12:05:17,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:05:17,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 3 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 482 [2024-11-22 12:05:17,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:05:17,652 INFO L225 Difference]: With dead ends: 218602 [2024-11-22 12:05:17,652 INFO L226 Difference]: Without dead ends: 169066 [2024-11-22 12:05:17,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:05:17,707 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 878 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:05:17,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 1715 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 12:05:17,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169066 states.