./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-48.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-48.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 5054d685be7479f98d5d246ff0f244e50fabd251a7020bbdbd6362d047caf08a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:04:16,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:04:16,836 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:04:16,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:04:16,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:04:16,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:04:16,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:04:16,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:04:16,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:04:16,884 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:04:16,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:04:16,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:04:16,885 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:04:16,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:04:16,888 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:04:16,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:04:16,889 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:04:16,889 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:04:16,889 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:04:16,890 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:04:16,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:04:16,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:04:16,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:04:16,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:04:16,895 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:04:16,895 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:04:16,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:04:16,895 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:04:16,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:04:16,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:04:16,896 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:04:16,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:04:16,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:04:16,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:04:16,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:04:16,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:04:16,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:04:16,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:04:16,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:04:16,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:04:16,901 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:04:16,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:04:16,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5054d685be7479f98d5d246ff0f244e50fabd251a7020bbdbd6362d047caf08a [2024-11-19 00:04:17,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:04:17,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:04:17,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:04:17,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:04:17,232 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:04:17,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-48.i [2024-11-19 00:04:18,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:04:19,168 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:04:19,169 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-48.i [2024-11-19 00:04:19,192 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84558b070/106fc3a36d0e411281f528f4bb313053/FLAGa45fc638d [2024-11-19 00:04:19,400 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84558b070/106fc3a36d0e411281f528f4bb313053 [2024-11-19 00:04:19,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:04:19,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:04:19,406 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:04:19,406 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:04:19,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:04:19,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:04:19" (1/1) ... [2024-11-19 00:04:19,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511d9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:19, skipping insertion in model container [2024-11-19 00:04:19,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:04:19" (1/1) ... [2024-11-19 00:04:19,490 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:04:19,688 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-48.i[916,929] [2024-11-19 00:04:19,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:04:19,988 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:04:20,004 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-48.i[916,929] [2024-11-19 00:04:20,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:04:20,185 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:04:20,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20 WrapperNode [2024-11-19 00:04:20,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:04:20,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:04:20,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:04:20,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:04:20,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,338 INFO L138 Inliner]: procedures = 26, calls = 96, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 770 [2024-11-19 00:04:20,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:04:20,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:04:20,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:04:20,340 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:04:20,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,367 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,455 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]. [2024-11-19 00:04:20,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:04:20,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:04:20,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:04:20,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:04:20,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (1/1) ... [2024-11-19 00:04:20,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:04:20,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:04:20,649 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) [2024-11-19 00:04:20,652 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 [2024-11-19 00:04:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:04:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:04:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:04:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:04:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:04:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:04:20,848 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:04:20,850 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:04:22,258 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-11-19 00:04:22,259 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:04:22,290 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:04:22,291 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:04:22,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:04:22 BoogieIcfgContainer [2024-11-19 00:04:22,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:04:22,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:04:22,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:04:22,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:04:22,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:04:19" (1/3) ... [2024-11-19 00:04:22,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df98ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:04:22, skipping insertion in model container [2024-11-19 00:04:22,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:04:20" (2/3) ... [2024-11-19 00:04:22,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df98ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:04:22, skipping insertion in model container [2024-11-19 00:04:22,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:04:22" (3/3) ... [2024-11-19 00:04:22,302 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-48.i [2024-11-19 00:04:22,320 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:04:22,320 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:04:22,434 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:04:22,440 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;@c6bb433, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:04:22,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:04:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 307 states, 221 states have (on average 1.5384615384615385) internal successors, (340), 222 states have internal predecessors, (340), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-19 00:04:22,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-11-19 00:04:22,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:22,489 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:22,490 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:22,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:22,497 INFO L85 PathProgramCache]: Analyzing trace with hash 80341717, now seen corresponding path program 1 times [2024-11-19 00:04:22,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:22,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626930813] [2024-11-19 00:04:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:22,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:23,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:23,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626930813] [2024-11-19 00:04:23,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626930813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:23,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:23,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:04:23,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633312010] [2024-11-19 00:04:23,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:23,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:04:23,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:23,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:04:23,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:04:23,660 INFO L87 Difference]: Start difference. First operand has 307 states, 221 states have (on average 1.5384615384615385) internal successors, (340), 222 states have internal predecessors, (340), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:23,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:23,939 INFO L93 Difference]: Finished difference Result 897 states and 1652 transitions. [2024-11-19 00:04:23,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:04:23,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 544 [2024-11-19 00:04:23,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:23,967 INFO L225 Difference]: With dead ends: 897 [2024-11-19 00:04:23,967 INFO L226 Difference]: Without dead ends: 593 [2024-11-19 00:04:23,977 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 [2024-11-19 00:04:23,984 INFO L432 NwaCegarLoop]: 864 mSDtfsCounter, 454 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:23,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1326 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:04:24,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-19 00:04:24,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 358. [2024-11-19 00:04:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 273 states have (on average 1.5494505494505495) internal successors, (423), 273 states have internal predecessors, (423), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-19 00:04:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 589 transitions. [2024-11-19 00:04:24,101 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 589 transitions. Word has length 544 [2024-11-19 00:04:24,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:24,106 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 589 transitions. [2024-11-19 00:04:24,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:24,107 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 589 transitions. [2024-11-19 00:04:24,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-19 00:04:24,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:24,123 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:24,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 00:04:24,124 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:24,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:24,125 INFO L85 PathProgramCache]: Analyzing trace with hash -441026700, now seen corresponding path program 1 times [2024-11-19 00:04:24,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:24,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452778998] [2024-11-19 00:04:24,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:24,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:24,740 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:24,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:24,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452778998] [2024-11-19 00:04:24,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452778998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:24,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:24,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:04:24,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163940853] [2024-11-19 00:04:24,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:24,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:04:24,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:24,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:04:24,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:04:24,752 INFO L87 Difference]: Start difference. First operand 358 states and 589 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:24,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:24,859 INFO L93 Difference]: Finished difference Result 991 states and 1633 transitions. [2024-11-19 00:04:24,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:04:24,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 545 [2024-11-19 00:04:24,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:24,871 INFO L225 Difference]: With dead ends: 991 [2024-11-19 00:04:24,871 INFO L226 Difference]: Without dead ends: 636 [2024-11-19 00:04:24,874 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 [2024-11-19 00:04:24,876 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 334 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:24,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1246 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:04:24,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-19 00:04:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 633. [2024-11-19 00:04:24,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 506 states have (on average 1.5711462450592886) internal successors, (795), 507 states have internal predecessors, (795), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-19 00:04:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1043 transitions. [2024-11-19 00:04:24,959 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1043 transitions. Word has length 545 [2024-11-19 00:04:24,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:24,967 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 1043 transitions. [2024-11-19 00:04:24,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:24,968 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1043 transitions. [2024-11-19 00:04:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-19 00:04:24,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:24,981 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:24,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:04:24,982 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:24,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:24,986 INFO L85 PathProgramCache]: Analyzing trace with hash -364125902, now seen corresponding path program 1 times [2024-11-19 00:04:24,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:24,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912399717] [2024-11-19 00:04:24,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:24,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:25,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:25,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912399717] [2024-11-19 00:04:25,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912399717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:25,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:25,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:04:25,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085549977] [2024-11-19 00:04:25,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:25,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:04:25,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:25,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:04:25,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:04:25,524 INFO L87 Difference]: Start difference. First operand 633 states and 1043 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:25,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:25,656 INFO L93 Difference]: Finished difference Result 1263 states and 2083 transitions. [2024-11-19 00:04:25,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:04:25,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 545 [2024-11-19 00:04:25,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:25,667 INFO L225 Difference]: With dead ends: 1263 [2024-11-19 00:04:25,668 INFO L226 Difference]: Without dead ends: 633 [2024-11-19 00:04:25,671 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 [2024-11-19 00:04:25,673 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 317 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:25,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 454 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:04:25,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-19 00:04:25,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2024-11-19 00:04:25,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 506 states have (on average 1.5632411067193677) internal successors, (791), 507 states have internal predecessors, (791), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-19 00:04:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1039 transitions. [2024-11-19 00:04:25,736 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1039 transitions. Word has length 545 [2024-11-19 00:04:25,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:25,739 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 1039 transitions. [2024-11-19 00:04:25,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:25,740 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1039 transitions. [2024-11-19 00:04:25,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2024-11-19 00:04:25,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:25,750 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:25,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:04:25,751 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:25,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:25,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1569015205, now seen corresponding path program 1 times [2024-11-19 00:04:25,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:25,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916902295] [2024-11-19 00:04:25,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:25,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:26,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:26,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916902295] [2024-11-19 00:04:26,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916902295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:26,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:26,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:04:26,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822596108] [2024-11-19 00:04:26,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:26,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:04:26,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:26,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:04:26,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:04:26,149 INFO L87 Difference]: Start difference. First operand 633 states and 1039 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:26,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:26,302 INFO L93 Difference]: Finished difference Result 1712 states and 2797 transitions. [2024-11-19 00:04:26,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:04:26,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 546 [2024-11-19 00:04:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:26,310 INFO L225 Difference]: With dead ends: 1712 [2024-11-19 00:04:26,311 INFO L226 Difference]: Without dead ends: 1082 [2024-11-19 00:04:26,313 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 [2024-11-19 00:04:26,314 INFO L432 NwaCegarLoop]: 811 mSDtfsCounter, 408 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:26,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 1247 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:04:26,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-11-19 00:04:26,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 807. [2024-11-19 00:04:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 680 states have (on average 1.575) internal successors, (1071), 681 states have internal predecessors, (1071), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-19 00:04:26,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1319 transitions. [2024-11-19 00:04:26,396 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1319 transitions. Word has length 546 [2024-11-19 00:04:26,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:26,398 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 1319 transitions. [2024-11-19 00:04:26,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:26,399 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1319 transitions. [2024-11-19 00:04:26,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-11-19 00:04:26,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:26,408 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:26,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:04:26,408 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:26,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:26,409 INFO L85 PathProgramCache]: Analyzing trace with hash 392875231, now seen corresponding path program 1 times [2024-11-19 00:04:26,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:26,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279934120] [2024-11-19 00:04:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:26,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:27,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:27,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279934120] [2024-11-19 00:04:27,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279934120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:27,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:27,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:04:27,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204078337] [2024-11-19 00:04:27,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:27,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:04:27,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:27,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:04:27,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:04:27,630 INFO L87 Difference]: Start difference. First operand 807 states and 1319 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:28,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:28,353 INFO L93 Difference]: Finished difference Result 1617 states and 2645 transitions. [2024-11-19 00:04:28,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:04:28,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 547 [2024-11-19 00:04:28,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:28,360 INFO L225 Difference]: With dead ends: 1617 [2024-11-19 00:04:28,361 INFO L226 Difference]: Without dead ends: 813 [2024-11-19 00:04:28,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:04:28,364 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 806 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:28,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 1110 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:04:28,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-19 00:04:28,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 811. [2024-11-19 00:04:28,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 684 states have (on average 1.5716374269005848) internal successors, (1075), 685 states have internal predecessors, (1075), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-19 00:04:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1323 transitions. [2024-11-19 00:04:28,428 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1323 transitions. Word has length 547 [2024-11-19 00:04:28,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:28,429 INFO L471 AbstractCegarLoop]: Abstraction has 811 states and 1323 transitions. [2024-11-19 00:04:28,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:28,430 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1323 transitions. [2024-11-19 00:04:28,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2024-11-19 00:04:28,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:28,440 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:28,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:04:28,440 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:28,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:28,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1612415553, now seen corresponding path program 1 times [2024-11-19 00:04:28,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:28,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930515086] [2024-11-19 00:04:28,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:28,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:29,120 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:29,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:29,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930515086] [2024-11-19 00:04:29,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930515086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:29,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:29,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:04:29,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565103618] [2024-11-19 00:04:29,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:29,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:04:29,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:29,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:04:29,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:04:29,124 INFO L87 Difference]: Start difference. First operand 811 states and 1323 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:29,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:29,693 INFO L93 Difference]: Finished difference Result 2361 states and 3857 transitions. [2024-11-19 00:04:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:04:29,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 548 [2024-11-19 00:04:29,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:29,708 INFO L225 Difference]: With dead ends: 2361 [2024-11-19 00:04:29,708 INFO L226 Difference]: Without dead ends: 1553 [2024-11-19 00:04:29,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:04:29,714 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 322 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:29,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1754 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:04:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2024-11-19 00:04:29,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 946. [2024-11-19 00:04:29,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 735 states have (on average 1.5319727891156463) internal successors, (1126), 736 states have internal predecessors, (1126), 207 states have call successors, (207), 3 states have call predecessors, (207), 3 states have return successors, (207), 206 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-19 00:04:29,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1540 transitions. [2024-11-19 00:04:29,850 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1540 transitions. Word has length 548 [2024-11-19 00:04:29,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:29,852 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1540 transitions. [2024-11-19 00:04:29,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:29,852 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1540 transitions. [2024-11-19 00:04:29,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2024-11-19 00:04:29,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:29,862 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:29,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:04:29,863 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:29,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:29,864 INFO L85 PathProgramCache]: Analyzing trace with hash -287559359, now seen corresponding path program 1 times [2024-11-19 00:04:29,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:29,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088694704] [2024-11-19 00:04:29,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:29,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:30,638 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:30,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:30,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088694704] [2024-11-19 00:04:30,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088694704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:30,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:30,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:04:30,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675763487] [2024-11-19 00:04:30,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:30,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:04:30,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:30,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:04:30,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:04:30,643 INFO L87 Difference]: Start difference. First operand 946 states and 1540 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:30,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:30,878 INFO L93 Difference]: Finished difference Result 2562 states and 4180 transitions. [2024-11-19 00:04:30,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:04:30,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 548 [2024-11-19 00:04:30,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:30,890 INFO L225 Difference]: With dead ends: 2562 [2024-11-19 00:04:30,890 INFO L226 Difference]: Without dead ends: 1754 [2024-11-19 00:04:30,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:04:30,896 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 283 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:30,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 1400 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:04:30,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-11-19 00:04:31,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1736. [2024-11-19 00:04:31,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1399 states have (on average 1.544674767691208) internal successors, (2161), 1401 states have internal predecessors, (2161), 331 states have call successors, (331), 5 states have call predecessors, (331), 5 states have return successors, (331), 329 states have call predecessors, (331), 331 states have call successors, (331) [2024-11-19 00:04:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2823 transitions. [2024-11-19 00:04:31,037 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2823 transitions. Word has length 548 [2024-11-19 00:04:31,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:31,038 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2823 transitions. [2024-11-19 00:04:31,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:31,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2823 transitions. [2024-11-19 00:04:31,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-19 00:04:31,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:31,048 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:31,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:04:31,049 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:31,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:31,049 INFO L85 PathProgramCache]: Analyzing trace with hash -129385042, now seen corresponding path program 1 times [2024-11-19 00:04:31,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:31,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811441710] [2024-11-19 00:04:31,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:31,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:31,888 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:31,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:31,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811441710] [2024-11-19 00:04:31,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811441710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:31,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:31,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:04:31,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228629105] [2024-11-19 00:04:31,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:31,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:04:31,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:31,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:04:31,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:04:31,892 INFO L87 Difference]: Start difference. First operand 1736 states and 2823 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:32,528 INFO L93 Difference]: Finished difference Result 6116 states and 9964 transitions. [2024-11-19 00:04:32,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:04:32,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 549 [2024-11-19 00:04:32,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:32,554 INFO L225 Difference]: With dead ends: 6116 [2024-11-19 00:04:32,554 INFO L226 Difference]: Without dead ends: 4518 [2024-11-19 00:04:32,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:04:32,563 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 580 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:32,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 2416 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:04:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2024-11-19 00:04:32,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 3336. [2024-11-19 00:04:32,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 2747 states have (on average 1.5540589734255552) internal successors, (4269), 2751 states have internal predecessors, (4269), 579 states have call successors, (579), 9 states have call predecessors, (579), 9 states have return successors, (579), 575 states have call predecessors, (579), 579 states have call successors, (579) [2024-11-19 00:04:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 5427 transitions. [2024-11-19 00:04:32,912 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 5427 transitions. Word has length 549 [2024-11-19 00:04:32,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:32,913 INFO L471 AbstractCegarLoop]: Abstraction has 3336 states and 5427 transitions. [2024-11-19 00:04:32,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:32,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 5427 transitions. [2024-11-19 00:04:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-19 00:04:32,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:32,921 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:32,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:04:32,921 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:32,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:32,922 INFO L85 PathProgramCache]: Analyzing trace with hash -102319440, now seen corresponding path program 1 times [2024-11-19 00:04:32,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:32,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876917141] [2024-11-19 00:04:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:32,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:34,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:34,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876917141] [2024-11-19 00:04:34,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876917141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:34,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:34,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:04:34,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449441426] [2024-11-19 00:04:34,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:34,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:04:34,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:34,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:04:34,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:04:34,913 INFO L87 Difference]: Start difference. First operand 3336 states and 5427 transitions. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:36,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:36,670 INFO L93 Difference]: Finished difference Result 13278 states and 21539 transitions. [2024-11-19 00:04:36,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:04:36,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 549 [2024-11-19 00:04:36,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:36,723 INFO L225 Difference]: With dead ends: 13278 [2024-11-19 00:04:36,723 INFO L226 Difference]: Without dead ends: 10080 [2024-11-19 00:04:36,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:04:36,739 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 1556 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:36,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 2382 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 00:04:36,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10080 states. [2024-11-19 00:04:37,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10080 to 6488. [2024-11-19 00:04:37,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6488 states, 5728 states have (on average 1.6024790502793296) internal successors, (9179), 5732 states have internal predecessors, (9179), 745 states have call successors, (745), 14 states have call predecessors, (745), 14 states have return successors, (745), 741 states have call predecessors, (745), 745 states have call successors, (745) [2024-11-19 00:04:37,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6488 states to 6488 states and 10669 transitions. [2024-11-19 00:04:37,374 INFO L78 Accepts]: Start accepts. Automaton has 6488 states and 10669 transitions. Word has length 549 [2024-11-19 00:04:37,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:37,375 INFO L471 AbstractCegarLoop]: Abstraction has 6488 states and 10669 transitions. [2024-11-19 00:04:37,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 6488 states and 10669 transitions. [2024-11-19 00:04:37,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-19 00:04:37,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:37,396 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:37,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:04:37,396 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:37,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:37,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1788499278, now seen corresponding path program 1 times [2024-11-19 00:04:37,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:37,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916517938] [2024-11-19 00:04:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:37,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:39,089 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:39,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:39,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916517938] [2024-11-19 00:04:39,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916517938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:39,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:39,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:04:39,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029451326] [2024-11-19 00:04:39,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:39,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:04:39,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:39,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:04:39,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:04:39,093 INFO L87 Difference]: Start difference. First operand 6488 states and 10669 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:40,058 INFO L93 Difference]: Finished difference Result 21096 states and 34484 transitions. [2024-11-19 00:04:40,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:04:40,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 549 [2024-11-19 00:04:40,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:40,164 INFO L225 Difference]: With dead ends: 21096 [2024-11-19 00:04:40,164 INFO L226 Difference]: Without dead ends: 15316 [2024-11-19 00:04:40,189 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 [2024-11-19 00:04:40,190 INFO L432 NwaCegarLoop]: 688 mSDtfsCounter, 741 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:40,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1650 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:04:40,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15316 states. [2024-11-19 00:04:40,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15316 to 14534. [2024-11-19 00:04:40,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14534 states, 13268 states have (on average 1.5974525173349412) internal successors, (21195), 13282 states have internal predecessors, (21195), 1239 states have call successors, (1239), 26 states have call predecessors, (1239), 26 states have return successors, (1239), 1225 states have call predecessors, (1239), 1239 states have call successors, (1239) [2024-11-19 00:04:41,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14534 states to 14534 states and 23673 transitions. [2024-11-19 00:04:41,040 INFO L78 Accepts]: Start accepts. Automaton has 14534 states and 23673 transitions. Word has length 549 [2024-11-19 00:04:41,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:41,042 INFO L471 AbstractCegarLoop]: Abstraction has 14534 states and 23673 transitions. [2024-11-19 00:04:41,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:41,042 INFO L276 IsEmpty]: Start isEmpty. Operand 14534 states and 23673 transitions. [2024-11-19 00:04:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-19 00:04:41,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:41,064 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:41,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:04:41,065 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:41,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:41,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1548259532, now seen corresponding path program 1 times [2024-11-19 00:04:41,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:41,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386772891] [2024-11-19 00:04:41,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:41,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:41,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:41,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386772891] [2024-11-19 00:04:41,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386772891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:41,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:41,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:04:41,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294843534] [2024-11-19 00:04:41,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:41,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:04:41,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:41,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:04:41,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:04:41,343 INFO L87 Difference]: Start difference. First operand 14534 states and 23673 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:41,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:41,978 INFO L93 Difference]: Finished difference Result 26604 states and 43213 transitions. [2024-11-19 00:04:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:04:41,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 549 [2024-11-19 00:04:41,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:42,060 INFO L225 Difference]: With dead ends: 26604 [2024-11-19 00:04:42,061 INFO L226 Difference]: Without dead ends: 18296 [2024-11-19 00:04:42,086 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 [2024-11-19 00:04:42,087 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 417 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:42,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1277 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:04:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18296 states. [2024-11-19 00:04:42,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18296 to 18294. [2024-11-19 00:04:43,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18294 states, 16580 states have (on average 1.582086851628468) internal successors, (26231), 16600 states have internal predecessors, (26231), 1679 states have call successors, (1679), 34 states have call predecessors, (1679), 34 states have return successors, (1679), 1659 states have call predecessors, (1679), 1679 states have call successors, (1679) [2024-11-19 00:04:43,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18294 states to 18294 states and 29589 transitions. [2024-11-19 00:04:43,097 INFO L78 Accepts]: Start accepts. Automaton has 18294 states and 29589 transitions. Word has length 549 [2024-11-19 00:04:43,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:43,098 INFO L471 AbstractCegarLoop]: Abstraction has 18294 states and 29589 transitions. [2024-11-19 00:04:43,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:43,099 INFO L276 IsEmpty]: Start isEmpty. Operand 18294 states and 29589 transitions. [2024-11-19 00:04:43,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-19 00:04:43,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:43,123 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:43,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:04:43,124 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:43,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:43,124 INFO L85 PathProgramCache]: Analyzing trace with hash 752563058, now seen corresponding path program 1 times [2024-11-19 00:04:43,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:43,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660842320] [2024-11-19 00:04:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:43,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-19 00:04:45,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:45,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660842320] [2024-11-19 00:04:45,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660842320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:45,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:45,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:04:45,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315135097] [2024-11-19 00:04:45,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:45,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:04:45,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:45,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:04:45,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:04:45,136 INFO L87 Difference]: Start difference. First operand 18294 states and 29589 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:46,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:46,717 INFO L93 Difference]: Finished difference Result 44128 states and 71110 transitions. [2024-11-19 00:04:46,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:04:46,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 549 [2024-11-19 00:04:46,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:46,819 INFO L225 Difference]: With dead ends: 44128 [2024-11-19 00:04:46,820 INFO L226 Difference]: Without dead ends: 26722 [2024-11-19 00:04:46,870 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 [2024-11-19 00:04:46,870 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 665 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:46,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1382 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:04:46,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26722 states. [2024-11-19 00:04:47,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26722 to 17752. [2024-11-19 00:04:47,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 16202 states have (on average 1.596531292433033) internal successors, (25867), 16218 states have internal predecessors, (25867), 1515 states have call successors, (1515), 34 states have call predecessors, (1515), 34 states have return successors, (1515), 1499 states have call predecessors, (1515), 1515 states have call successors, (1515) [2024-11-19 00:04:47,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 28897 transitions. [2024-11-19 00:04:47,947 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 28897 transitions. Word has length 549 [2024-11-19 00:04:47,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:47,949 INFO L471 AbstractCegarLoop]: Abstraction has 17752 states and 28897 transitions. [2024-11-19 00:04:47,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-19 00:04:47,949 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 28897 transitions. [2024-11-19 00:04:47,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2024-11-19 00:04:47,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:47,963 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:47,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:04:47,963 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:47,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:47,964 INFO L85 PathProgramCache]: Analyzing trace with hash -857720330, now seen corresponding path program 1 times [2024-11-19 00:04:47,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:47,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757145394] [2024-11-19 00:04:47,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:47,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 117 proven. 129 refuted. 0 times theorem prover too weak. 13366 trivial. 0 not checked. [2024-11-19 00:04:51,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:51,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757145394] [2024-11-19 00:04:51,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757145394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:04:51,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736653139] [2024-11-19 00:04:51,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:51,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:04:51,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:04:51,250 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) [2024-11-19 00:04:51,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:04:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:51,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 00:04:51,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:04:52,533 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 6868 proven. 129 refuted. 0 times theorem prover too weak. 6615 trivial. 0 not checked. [2024-11-19 00:04:52,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:04:53,187 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 117 proven. 129 refuted. 0 times theorem prover too weak. 13366 trivial. 0 not checked. [2024-11-19 00:04:53,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736653139] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:04:53,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:04:53,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-19 00:04:53,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329765662] [2024-11-19 00:04:53,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:04:53,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:04:53,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:53,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:04:53,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:04:53,193 INFO L87 Difference]: Start difference. First operand 17752 states and 28897 transitions. Second operand has 9 states, 9 states have (on average 23.77777777777778) internal successors, (214), 9 states have internal predecessors, (214), 3 states have call successors, (169), 2 states have call predecessors, (169), 4 states have return successors, (170), 3 states have call predecessors, (170), 3 states have call successors, (170) [2024-11-19 00:04:55,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:55,649 INFO L93 Difference]: Finished difference Result 48824 states and 79499 transitions. [2024-11-19 00:04:55,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:04:55,650 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 23.77777777777778) internal successors, (214), 9 states have internal predecessors, (214), 3 states have call successors, (169), 2 states have call predecessors, (169), 4 states have return successors, (170), 3 states have call predecessors, (170), 3 states have call successors, (170) Word has length 550 [2024-11-19 00:04:55,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:55,771 INFO L225 Difference]: With dead ends: 48824 [2024-11-19 00:04:55,771 INFO L226 Difference]: Without dead ends: 31522 [2024-11-19 00:04:55,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1109 GetRequests, 1097 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:04:55,824 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 2000 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:55,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 1237 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [479 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 00:04:55,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31522 states. [2024-11-19 00:04:57,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31522 to 31462. [2024-11-19 00:04:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31462 states, 28926 states have (on average 1.5859434418861924) internal successors, (45875), 28966 states have internal predecessors, (45875), 2451 states have call successors, (2451), 84 states have call predecessors, (2451), 84 states have return successors, (2451), 2411 states have call predecessors, (2451), 2451 states have call successors, (2451) [2024-11-19 00:04:57,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31462 states to 31462 states and 50777 transitions. [2024-11-19 00:04:57,368 INFO L78 Accepts]: Start accepts. Automaton has 31462 states and 50777 transitions. Word has length 550 [2024-11-19 00:04:57,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:57,369 INFO L471 AbstractCegarLoop]: Abstraction has 31462 states and 50777 transitions. [2024-11-19 00:04:57,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 23.77777777777778) internal successors, (214), 9 states have internal predecessors, (214), 3 states have call successors, (169), 2 states have call predecessors, (169), 4 states have return successors, (170), 3 states have call predecessors, (170), 3 states have call successors, (170) [2024-11-19 00:04:57,370 INFO L276 IsEmpty]: Start isEmpty. Operand 31462 states and 50777 transitions. [2024-11-19 00:04:57,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2024-11-19 00:04:57,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:57,393 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:57,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 00:04:57,597 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,SelfDestructingSolverStorable12 [2024-11-19 00:04:57,599 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:57,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:57,599 INFO L85 PathProgramCache]: Analyzing trace with hash -925322120, now seen corresponding path program 1 times [2024-11-19 00:04:57,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:57,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985910376] [2024-11-19 00:04:57,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:57,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 111 proven. 135 refuted. 0 times theorem prover too weak. 13366 trivial. 0 not checked. [2024-11-19 00:04:59,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:59,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985910376] [2024-11-19 00:04:59,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985910376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:04:59,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394551186] [2024-11-19 00:04:59,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:59,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:04:59,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:04:59,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:04:59,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:05:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:00,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 00:05:00,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:05:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 8947 proven. 99 refuted. 0 times theorem prover too weak. 4566 trivial. 0 not checked. [2024-11-19 00:05:01,182 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:05:01,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 147 proven. 99 refuted. 0 times theorem prover too weak. 13366 trivial. 0 not checked. [2024-11-19 00:05:01,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394551186] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:05:01,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:05:01,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-11-19 00:05:01,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339089819] [2024-11-19 00:05:01,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:05:01,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 00:05:01,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:05:01,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 00:05:01,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:05:01,762 INFO L87 Difference]: Start difference. First operand 31462 states and 50777 transitions. Second operand has 18 states, 17 states have (on average 17.88235294117647) internal successors, (304), 18 states have internal predecessors, (304), 8 states have call successors, (230), 3 states have call predecessors, (230), 6 states have return successors, (230), 7 states have call predecessors, (230), 8 states have call successors, (230) [2024-11-19 00:05:05,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:05:05,123 INFO L93 Difference]: Finished difference Result 92780 states and 149419 transitions. [2024-11-19 00:05:05,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 00:05:05,124 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 17.88235294117647) internal successors, (304), 18 states have internal predecessors, (304), 8 states have call successors, (230), 3 states have call predecessors, (230), 6 states have return successors, (230), 7 states have call predecessors, (230), 8 states have call successors, (230) Word has length 550 [2024-11-19 00:05:05,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:05:05,336 INFO L225 Difference]: With dead ends: 92780 [2024-11-19 00:05:05,337 INFO L226 Difference]: Without dead ends: 61712 [2024-11-19 00:05:05,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1125 GetRequests, 1093 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=280, Invalid=842, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 00:05:05,406 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 3207 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 1032 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3256 SdHoareTripleChecker+Valid, 2764 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1032 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:05:05,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3256 Valid, 2764 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1032 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 00:05:05,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61712 states. [2024-11-19 00:05:08,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61712 to 61644. [2024-11-19 00:05:08,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61644 states, 56578 states have (on average 1.564866202410831) internal successors, (88537), 56658 states have internal predecessors, (88537), 4819 states have call successors, (4819), 246 states have call predecessors, (4819), 246 states have return successors, (4819), 4739 states have call predecessors, (4819), 4819 states have call successors, (4819) [2024-11-19 00:05:08,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61644 states to 61644 states and 98175 transitions. [2024-11-19 00:05:08,807 INFO L78 Accepts]: Start accepts. Automaton has 61644 states and 98175 transitions. Word has length 550 [2024-11-19 00:05:08,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:05:08,808 INFO L471 AbstractCegarLoop]: Abstraction has 61644 states and 98175 transitions. [2024-11-19 00:05:08,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 17.88235294117647) internal successors, (304), 18 states have internal predecessors, (304), 8 states have call successors, (230), 3 states have call predecessors, (230), 6 states have return successors, (230), 7 states have call predecessors, (230), 8 states have call successors, (230) [2024-11-19 00:05:08,809 INFO L276 IsEmpty]: Start isEmpty. Operand 61644 states and 98175 transitions. [2024-11-19 00:05:08,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2024-11-19 00:05:08,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:05:08,837 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:05:08,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 00:05:09,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-19 00:05:09,039 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:05:09,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:05:09,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1805858580, now seen corresponding path program 1 times [2024-11-19 00:05:09,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:05:09,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254496265] [2024-11-19 00:05:09,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:09,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:05:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 00:05:11,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1217453126] [2024-11-19 00:05:11,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:05:11,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:05:11,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:05:11,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:05:11,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:05:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:05:12,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 00:05:12,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:05:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 5406 proven. 417 refuted. 0 times theorem prover too weak. 7789 trivial. 0 not checked. [2024-11-19 00:05:14,596 INFO L311 TraceCheckSpWp]: Computing backward predicates...