./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-34.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_fillercode_fillercodestructure_filler-ps-co_file-34.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 fab5880c6add66d25f9dda30d1a24e14051ec77fdefc3f83f67a5e43bacfe3df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 21:38:43,476 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 21:38:43,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 21:38:43,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 21:38:43,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 21:38:43,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 21:38:43,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 21:38:43,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 21:38:43,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 21:38:43,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 21:38:43,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 21:38:43,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 21:38:43,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 21:38:43,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 21:38:43,606 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 21:38:43,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 21:38:43,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 21:38:43,607 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 21:38:43,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 21:38:43,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 21:38:43,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 21:38:43,611 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 21:38:43,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 21:38:43,612 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 21:38:43,612 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 21:38:43,613 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 21:38:43,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 21:38:43,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 21:38:43,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 21:38:43,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 21:38:43,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 21:38:43,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 21:38:43,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 21:38:43,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 21:38:43,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 21:38:43,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 21:38:43,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 21:38:43,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 21:38:43,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 21:38:43,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 21:38:43,620 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 21:38:43,620 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 21:38:43,620 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fab5880c6add66d25f9dda30d1a24e14051ec77fdefc3f83f67a5e43bacfe3df [2024-11-18 21:38:43,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 21:38:43,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 21:38:43,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 21:38:43,900 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 21:38:43,901 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 21:38:43,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-34.i [2024-11-18 21:38:45,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 21:38:45,614 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 21:38:45,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-34.i [2024-11-18 21:38:45,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c9a1937/7980c7c97fdc412e866b60957f73ea62/FLAG53ec40e97 [2024-11-18 21:38:45,945 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c9a1937/7980c7c97fdc412e866b60957f73ea62 [2024-11-18 21:38:45,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 21:38:45,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 21:38:45,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 21:38:45,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 21:38:45,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 21:38:45,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:38:45" (1/1) ... [2024-11-18 21:38:45,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c05b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:45, skipping insertion in model container [2024-11-18 21:38:45,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:38:45" (1/1) ... [2024-11-18 21:38:45,996 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 21:38:46,192 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_fillercode_fillercodestructure_filler-ps-co_file-34.i[919,932] [2024-11-18 21:38:46,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 21:38:46,283 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 21:38:46,313 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_fillercode_fillercodestructure_filler-ps-co_file-34.i[919,932] [2024-11-18 21:38:46,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 21:38:46,399 INFO L204 MainTranslator]: Completed translation [2024-11-18 21:38:46,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46 WrapperNode [2024-11-18 21:38:46,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 21:38:46,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 21:38:46,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 21:38:46,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 21:38:46,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,468 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 248 [2024-11-18 21:38:46,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 21:38:46,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 21:38:46,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 21:38:46,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 21:38:46,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,522 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 21:38:46,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 21:38:46,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 21:38:46,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 21:38:46,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 21:38:46,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (1/1) ... [2024-11-18 21:38:46,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 21:38:46,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 21:38:46,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 21:38:46,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 21:38:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 21:38:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 21:38:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 21:38:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 21:38:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 21:38:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 21:38:46,718 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 21:38:46,720 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 21:38:47,237 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-18 21:38:47,237 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 21:38:47,255 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 21:38:47,255 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 21:38:47,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:38:47 BoogieIcfgContainer [2024-11-18 21:38:47,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 21:38:47,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 21:38:47,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 21:38:47,262 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 21:38:47,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:38:45" (1/3) ... [2024-11-18 21:38:47,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336d50ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:38:47, skipping insertion in model container [2024-11-18 21:38:47,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:38:46" (2/3) ... [2024-11-18 21:38:47,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336d50ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:38:47, skipping insertion in model container [2024-11-18 21:38:47,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:38:47" (3/3) ... [2024-11-18 21:38:47,266 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-34.i [2024-11-18 21:38:47,283 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 21:38:47,284 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 21:38:47,352 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 21:38:47,359 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;@3d82e1ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 21:38:47,360 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 21:38:47,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 74 states have internal predecessors, (109), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-18 21:38:47,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 21:38:47,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:38:47,381 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:38:47,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:38:47,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:38:47,389 INFO L85 PathProgramCache]: Analyzing trace with hash -558081827, now seen corresponding path program 1 times [2024-11-18 21:38:47,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:38:47,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166389647] [2024-11-18 21:38:47,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:38:47,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:38:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:38:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-18 21:38:47,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:38:47,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166389647] [2024-11-18 21:38:47,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166389647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 21:38:47,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818381633] [2024-11-18 21:38:47,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:38:47,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 21:38:47,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 21:38:47,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 21:38:47,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 21:38:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:38:48,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 21:38:48,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 21:38:48,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-18 21:38:48,129 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 21:38:48,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818381633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:38:48,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 21:38:48,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 21:38:48,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986230416] [2024-11-18 21:38:48,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:38:48,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 21:38:48,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:38:48,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 21:38:48,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 21:38:48,161 INFO L87 Difference]: Start difference. First operand has 103 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 74 states have internal predecessors, (109), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-18 21:38:48,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:38:48,195 INFO L93 Difference]: Finished difference Result 199 states and 347 transitions. [2024-11-18 21:38:48,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 21:38:48,198 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 179 [2024-11-18 21:38:48,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:38:48,208 INFO L225 Difference]: With dead ends: 199 [2024-11-18 21:38:48,208 INFO L226 Difference]: Without dead ends: 99 [2024-11-18 21:38:48,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 21:38:48,220 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 21:38:48,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 21:38:48,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-18 21:38:48,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-18 21:38:48,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 70 states have (on average 1.457142857142857) internal successors, (102), 70 states have internal predecessors, (102), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-18 21:38:48,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 156 transitions. [2024-11-18 21:38:48,275 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 156 transitions. Word has length 179 [2024-11-18 21:38:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:38:48,275 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 156 transitions. [2024-11-18 21:38:48,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-18 21:38:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 156 transitions. [2024-11-18 21:38:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 21:38:48,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:38:48,280 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:38:48,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 21:38:48,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 21:38:48,482 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:38:48,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:38:48,483 INFO L85 PathProgramCache]: Analyzing trace with hash -14833821, now seen corresponding path program 1 times [2024-11-18 21:38:48,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:38:48,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801111247] [2024-11-18 21:38:48,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:38:48,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:38:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:38:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:38:49,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:38:49,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801111247] [2024-11-18 21:38:49,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801111247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:38:49,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:38:49,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 21:38:49,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104773710] [2024-11-18 21:38:49,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:38:49,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 21:38:49,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:38:49,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 21:38:49,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 21:38:49,114 INFO L87 Difference]: Start difference. First operand 99 states and 156 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:38:49,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:38:49,350 INFO L93 Difference]: Finished difference Result 321 states and 507 transitions. [2024-11-18 21:38:49,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 21:38:49,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 179 [2024-11-18 21:38:49,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:38:49,363 INFO L225 Difference]: With dead ends: 321 [2024-11-18 21:38:49,364 INFO L226 Difference]: Without dead ends: 225 [2024-11-18 21:38:49,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 21:38:49,366 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 168 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 21:38:49,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 486 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 21:38:49,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-18 21:38:49,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 195. [2024-11-18 21:38:49,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 138 states have (on average 1.4565217391304348) internal successors, (201), 138 states have internal predecessors, (201), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-18 21:38:49,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 309 transitions. [2024-11-18 21:38:49,424 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 309 transitions. Word has length 179 [2024-11-18 21:38:49,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:38:49,425 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 309 transitions. [2024-11-18 21:38:49,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:38:49,426 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 309 transitions. [2024-11-18 21:38:49,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-18 21:38:49,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:38:49,432 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:38:49,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 21:38:49,433 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:38:49,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:38:49,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1320105348, now seen corresponding path program 1 times [2024-11-18 21:38:49,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:38:49,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879217460] [2024-11-18 21:38:49,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:38:49,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:38:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:38:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:38:49,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:38:49,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879217460] [2024-11-18 21:38:49,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879217460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:38:49,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:38:49,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 21:38:49,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562325207] [2024-11-18 21:38:49,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:38:49,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 21:38:49,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:38:49,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 21:38:49,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 21:38:49,873 INFO L87 Difference]: Start difference. First operand 195 states and 309 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:38:50,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:38:50,309 INFO L93 Difference]: Finished difference Result 574 states and 910 transitions. [2024-11-18 21:38:50,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 21:38:50,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 180 [2024-11-18 21:38:50,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:38:50,314 INFO L225 Difference]: With dead ends: 574 [2024-11-18 21:38:50,315 INFO L226 Difference]: Without dead ends: 382 [2024-11-18 21:38:50,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 21:38:50,318 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 206 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 21:38:50,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 513 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 21:38:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-18 21:38:50,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 199. [2024-11-18 21:38:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 142 states have (on average 1.443661971830986) internal successors, (205), 142 states have internal predecessors, (205), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-18 21:38:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 313 transitions. [2024-11-18 21:38:50,356 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 313 transitions. Word has length 180 [2024-11-18 21:38:50,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:38:50,357 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 313 transitions. [2024-11-18 21:38:50,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:38:50,359 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 313 transitions. [2024-11-18 21:38:50,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-18 21:38:50,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:38:50,364 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:38:50,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 21:38:50,364 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:38:50,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:38:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash 845962460, now seen corresponding path program 1 times [2024-11-18 21:38:50,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:38:50,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298643453] [2024-11-18 21:38:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:38:50,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:38:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:38:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:38:53,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:38:53,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298643453] [2024-11-18 21:38:53,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298643453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:38:53,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:38:53,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 21:38:53,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609250272] [2024-11-18 21:38:53,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:38:53,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 21:38:53,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:38:53,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 21:38:53,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 21:38:53,510 INFO L87 Difference]: Start difference. First operand 199 states and 313 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:38:54,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:38:54,232 INFO L93 Difference]: Finished difference Result 588 states and 915 transitions. [2024-11-18 21:38:54,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 21:38:54,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-18 21:38:54,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:38:54,240 INFO L225 Difference]: With dead ends: 588 [2024-11-18 21:38:54,240 INFO L226 Difference]: Without dead ends: 392 [2024-11-18 21:38:54,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-18 21:38:54,244 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 218 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 21:38:54,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 452 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 21:38:54,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-18 21:38:54,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 278. [2024-11-18 21:38:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 193 states have (on average 1.4352331606217616) internal successors, (277), 193 states have internal predecessors, (277), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 21:38:54,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 439 transitions. [2024-11-18 21:38:54,319 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 439 transitions. Word has length 181 [2024-11-18 21:38:54,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:38:54,321 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 439 transitions. [2024-11-18 21:38:54,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:38:54,321 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 439 transitions. [2024-11-18 21:38:54,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-18 21:38:54,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:38:54,325 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:38:54,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 21:38:54,326 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:38:54,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:38:54,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2116095531, now seen corresponding path program 1 times [2024-11-18 21:38:54,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:38:54,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85184871] [2024-11-18 21:38:54,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:38:54,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:38:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:39:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:39:03,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:39:03,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85184871] [2024-11-18 21:39:03,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85184871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:39:03,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:39:03,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 21:39:03,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937918109] [2024-11-18 21:39:03,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:39:03,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 21:39:03,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:39:03,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 21:39:03,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-18 21:39:03,262 INFO L87 Difference]: Start difference. First operand 278 states and 439 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:05,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:39:05,662 INFO L93 Difference]: Finished difference Result 718 states and 1092 transitions. [2024-11-18 21:39:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 21:39:05,663 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-18 21:39:05,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:39:05,668 INFO L225 Difference]: With dead ends: 718 [2024-11-18 21:39:05,668 INFO L226 Difference]: Without dead ends: 505 [2024-11-18 21:39:05,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2024-11-18 21:39:05,672 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 685 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 21:39:05,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 649 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 21:39:05,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-18 21:39:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 351. [2024-11-18 21:39:05,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 266 states have (on average 1.4360902255639099) internal successors, (382), 266 states have internal predecessors, (382), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 21:39:05,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 544 transitions. [2024-11-18 21:39:05,737 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 544 transitions. Word has length 181 [2024-11-18 21:39:05,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:39:05,738 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 544 transitions. [2024-11-18 21:39:05,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:05,738 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 544 transitions. [2024-11-18 21:39:05,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-18 21:39:05,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:39:05,741 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:39:05,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 21:39:05,742 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:39:05,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:39:05,744 INFO L85 PathProgramCache]: Analyzing trace with hash -403864403, now seen corresponding path program 1 times [2024-11-18 21:39:05,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:39:05,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878487849] [2024-11-18 21:39:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:39:05,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:39:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:39:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:39:08,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:39:08,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878487849] [2024-11-18 21:39:08,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878487849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:39:08,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:39:08,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 21:39:08,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47663397] [2024-11-18 21:39:08,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:39:08,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 21:39:08,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:39:08,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 21:39:08,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 21:39:08,297 INFO L87 Difference]: Start difference. First operand 351 states and 544 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:09,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:39:09,733 INFO L93 Difference]: Finished difference Result 774 states and 1190 transitions. [2024-11-18 21:39:09,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 21:39:09,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-18 21:39:09,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:39:09,737 INFO L225 Difference]: With dead ends: 774 [2024-11-18 21:39:09,738 INFO L226 Difference]: Without dead ends: 562 [2024-11-18 21:39:09,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-18 21:39:09,741 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 375 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 21:39:09,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 539 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 21:39:09,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-18 21:39:09,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 396. [2024-11-18 21:39:09,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 311 states have (on average 1.4244372990353698) internal successors, (443), 311 states have internal predecessors, (443), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 21:39:09,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 605 transitions. [2024-11-18 21:39:09,783 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 605 transitions. Word has length 181 [2024-11-18 21:39:09,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:39:09,783 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 605 transitions. [2024-11-18 21:39:09,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:09,784 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 605 transitions. [2024-11-18 21:39:09,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-18 21:39:09,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:39:09,786 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:39:09,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 21:39:09,787 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:39:09,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:39:09,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1498813395, now seen corresponding path program 1 times [2024-11-18 21:39:09,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:39:09,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673573290] [2024-11-18 21:39:09,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:39:09,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:39:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:39:12,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:39:12,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:39:12,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673573290] [2024-11-18 21:39:12,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673573290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:39:12,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:39:12,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 21:39:12,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354284871] [2024-11-18 21:39:12,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:39:12,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 21:39:12,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:39:12,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 21:39:12,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 21:39:12,817 INFO L87 Difference]: Start difference. First operand 396 states and 605 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:14,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:39:14,141 INFO L93 Difference]: Finished difference Result 746 states and 1132 transitions. [2024-11-18 21:39:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 21:39:14,142 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-18 21:39:14,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:39:14,145 INFO L225 Difference]: With dead ends: 746 [2024-11-18 21:39:14,146 INFO L226 Difference]: Without dead ends: 532 [2024-11-18 21:39:14,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-18 21:39:14,148 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 297 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 21:39:14,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 607 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 21:39:14,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-18 21:39:14,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 416. [2024-11-18 21:39:14,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 331 states have (on average 1.4350453172205437) internal successors, (475), 331 states have internal predecessors, (475), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 21:39:14,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 637 transitions. [2024-11-18 21:39:14,193 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 637 transitions. Word has length 181 [2024-11-18 21:39:14,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:39:14,194 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 637 transitions. [2024-11-18 21:39:14,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:14,194 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 637 transitions. [2024-11-18 21:39:14,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-18 21:39:14,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:39:14,196 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:39:14,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 21:39:14,197 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:39:14,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:39:14,197 INFO L85 PathProgramCache]: Analyzing trace with hash -165154790, now seen corresponding path program 1 times [2024-11-18 21:39:14,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:39:14,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402394186] [2024-11-18 21:39:14,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:39:14,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:39:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:39:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:39:14,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:39:14,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402394186] [2024-11-18 21:39:14,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402394186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:39:14,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:39:14,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 21:39:14,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680122106] [2024-11-18 21:39:14,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:39:14,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 21:39:14,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:39:14,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 21:39:14,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 21:39:14,553 INFO L87 Difference]: Start difference. First operand 416 states and 637 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:14,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:39:14,834 INFO L93 Difference]: Finished difference Result 672 states and 1032 transitions. [2024-11-18 21:39:14,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 21:39:14,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-18 21:39:14,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:39:14,838 INFO L225 Difference]: With dead ends: 672 [2024-11-18 21:39:14,838 INFO L226 Difference]: Without dead ends: 416 [2024-11-18 21:39:14,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 21:39:14,840 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 120 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 21:39:14,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 377 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 21:39:14,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-18 21:39:14,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 388. [2024-11-18 21:39:14,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 303 states have (on average 1.4026402640264026) internal successors, (425), 303 states have internal predecessors, (425), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 21:39:14,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 587 transitions. [2024-11-18 21:39:14,880 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 587 transitions. Word has length 181 [2024-11-18 21:39:14,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:39:14,881 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 587 transitions. [2024-11-18 21:39:14,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 587 transitions. [2024-11-18 21:39:14,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-18 21:39:14,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:39:14,884 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:39:14,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 21:39:14,884 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:39:14,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:39:14,884 INFO L85 PathProgramCache]: Analyzing trace with hash 443906289, now seen corresponding path program 1 times [2024-11-18 21:39:14,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:39:14,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446797779] [2024-11-18 21:39:14,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:39:14,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:39:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:39:17,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:39:17,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:39:17,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446797779] [2024-11-18 21:39:17,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446797779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:39:17,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:39:17,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 21:39:17,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871376066] [2024-11-18 21:39:17,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:39:17,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 21:39:17,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:39:17,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 21:39:17,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-18 21:39:17,488 INFO L87 Difference]: Start difference. First operand 388 states and 587 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:18,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:39:18,625 INFO L93 Difference]: Finished difference Result 769 states and 1149 transitions. [2024-11-18 21:39:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 21:39:18,626 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 182 [2024-11-18 21:39:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:39:18,629 INFO L225 Difference]: With dead ends: 769 [2024-11-18 21:39:18,629 INFO L226 Difference]: Without dead ends: 573 [2024-11-18 21:39:18,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 21:39:18,630 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 352 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 21:39:18,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 688 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 21:39:18,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-18 21:39:18,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 416. [2024-11-18 21:39:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 329 states have (on average 1.3829787234042554) internal successors, (455), 329 states have internal predecessors, (455), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 21:39:18,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 617 transitions. [2024-11-18 21:39:18,699 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 617 transitions. Word has length 182 [2024-11-18 21:39:18,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:39:18,699 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 617 transitions. [2024-11-18 21:39:18,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 617 transitions. [2024-11-18 21:39:18,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-18 21:39:18,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:39:18,702 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:39:18,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 21:39:18,703 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:39:18,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:39:18,703 INFO L85 PathProgramCache]: Analyzing trace with hash 176093985, now seen corresponding path program 1 times [2024-11-18 21:39:18,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:39:18,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871455151] [2024-11-18 21:39:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:39:18,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:39:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:39:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:39:22,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:39:22,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871455151] [2024-11-18 21:39:22,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871455151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:39:22,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:39:22,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 21:39:22,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060166416] [2024-11-18 21:39:22,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:39:22,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 21:39:22,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:39:22,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 21:39:22,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-18 21:39:22,421 INFO L87 Difference]: Start difference. First operand 416 states and 617 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:25,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:39:25,294 INFO L93 Difference]: Finished difference Result 1137 states and 1688 transitions. [2024-11-18 21:39:25,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 21:39:25,295 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 182 [2024-11-18 21:39:25,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:39:25,302 INFO L225 Difference]: With dead ends: 1137 [2024-11-18 21:39:25,302 INFO L226 Difference]: Without dead ends: 875 [2024-11-18 21:39:25,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2024-11-18 21:39:25,304 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 577 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 21:39:25,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 693 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 21:39:25,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-18 21:39:25,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 711. [2024-11-18 21:39:25,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 566 states have (on average 1.3939929328621907) internal successors, (789), 566 states have internal predecessors, (789), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-18 21:39:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1059 transitions. [2024-11-18 21:39:25,357 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1059 transitions. Word has length 182 [2024-11-18 21:39:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:39:25,357 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 1059 transitions. [2024-11-18 21:39:25,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1059 transitions. [2024-11-18 21:39:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-18 21:39:25,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:39:25,360 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:39:25,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 21:39:25,360 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:39:25,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:39:25,360 INFO L85 PathProgramCache]: Analyzing trace with hash 856152355, now seen corresponding path program 1 times [2024-11-18 21:39:25,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:39:25,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595659702] [2024-11-18 21:39:25,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:39:25,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:39:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:39:30,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:39:30,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:39:30,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595659702] [2024-11-18 21:39:30,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595659702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:39:30,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:39:30,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 21:39:30,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133308718] [2024-11-18 21:39:30,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:39:30,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 21:39:30,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:39:30,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 21:39:30,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-18 21:39:30,149 INFO L87 Difference]: Start difference. First operand 711 states and 1059 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:31,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:39:31,848 INFO L93 Difference]: Finished difference Result 1338 states and 1973 transitions. [2024-11-18 21:39:31,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 21:39:31,849 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 182 [2024-11-18 21:39:31,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:39:31,854 INFO L225 Difference]: With dead ends: 1338 [2024-11-18 21:39:31,854 INFO L226 Difference]: Without dead ends: 811 [2024-11-18 21:39:31,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2024-11-18 21:39:31,857 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 255 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 21:39:31,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 898 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 21:39:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-11-18 21:39:31,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 711. [2024-11-18 21:39:31,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 566 states have (on average 1.392226148409894) internal successors, (788), 566 states have internal predecessors, (788), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-18 21:39:31,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1058 transitions. [2024-11-18 21:39:31,916 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1058 transitions. Word has length 182 [2024-11-18 21:39:31,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:39:31,917 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 1058 transitions. [2024-11-18 21:39:31,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:31,917 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1058 transitions. [2024-11-18 21:39:31,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-18 21:39:31,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:39:31,919 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:39:31,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 21:39:31,919 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:39:31,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:39:31,920 INFO L85 PathProgramCache]: Analyzing trace with hash 965881430, now seen corresponding path program 1 times [2024-11-18 21:39:31,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:39:31,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815308443] [2024-11-18 21:39:31,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:39:31,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:39:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:39:39,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:39:39,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:39:39,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815308443] [2024-11-18 21:39:39,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815308443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:39:39,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:39:39,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 21:39:39,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499876296] [2024-11-18 21:39:39,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:39:39,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 21:39:39,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:39:39,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 21:39:39,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-18 21:39:39,872 INFO L87 Difference]: Start difference. First operand 711 states and 1058 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:42,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:39:42,614 INFO L93 Difference]: Finished difference Result 1067 states and 1558 transitions. [2024-11-18 21:39:42,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 21:39:42,615 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 183 [2024-11-18 21:39:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:39:42,620 INFO L225 Difference]: With dead ends: 1067 [2024-11-18 21:39:42,621 INFO L226 Difference]: Without dead ends: 855 [2024-11-18 21:39:42,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2024-11-18 21:39:42,623 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 361 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 21:39:42,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 803 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 21:39:42,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-18 21:39:42,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 703. [2024-11-18 21:39:42,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 558 states have (on average 1.3942652329749103) internal successors, (778), 558 states have internal predecessors, (778), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-18 21:39:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1048 transitions. [2024-11-18 21:39:42,690 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1048 transitions. Word has length 183 [2024-11-18 21:39:42,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:39:42,691 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 1048 transitions. [2024-11-18 21:39:42,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:42,691 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1048 transitions. [2024-11-18 21:39:42,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-18 21:39:42,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:39:42,694 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:39:42,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 21:39:42,694 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:39:42,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:39:42,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1060884472, now seen corresponding path program 1 times [2024-11-18 21:39:42,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:39:42,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164033628] [2024-11-18 21:39:42,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:39:42,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:39:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 21:39:46,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-18 21:39:46,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 21:39:46,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164033628] [2024-11-18 21:39:46,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164033628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 21:39:46,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 21:39:46,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 21:39:46,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719713311] [2024-11-18 21:39:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 21:39:46,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 21:39:46,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 21:39:46,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 21:39:46,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-18 21:39:46,319 INFO L87 Difference]: Start difference. First operand 703 states and 1048 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:50,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 21:39:50,630 INFO L93 Difference]: Finished difference Result 1581 states and 2347 transitions. [2024-11-18 21:39:50,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 21:39:50,632 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 183 [2024-11-18 21:39:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 21:39:50,639 INFO L225 Difference]: With dead ends: 1581 [2024-11-18 21:39:50,642 INFO L226 Difference]: Without dead ends: 1119 [2024-11-18 21:39:50,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2024-11-18 21:39:50,646 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 671 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 21:39:50,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 535 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 21:39:50,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2024-11-18 21:39:50,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 721. [2024-11-18 21:39:50,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 576 states have (on average 1.3923611111111112) internal successors, (802), 576 states have internal predecessors, (802), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-18 21:39:50,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1072 transitions. [2024-11-18 21:39:50,719 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1072 transitions. Word has length 183 [2024-11-18 21:39:50,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 21:39:50,720 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1072 transitions. [2024-11-18 21:39:50,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-18 21:39:50,721 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1072 transitions. [2024-11-18 21:39:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-18 21:39:50,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 21:39:50,722 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 21:39:50,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 21:39:50,723 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 21:39:50,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 21:39:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash 714122890, now seen corresponding path program 1 times [2024-11-18 21:39:50,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 21:39:50,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321475792] [2024-11-18 21:39:50,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 21:39:50,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 21:39:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat