./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 023d838f 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.fs.icfgbuilder-eval-023d838-m [2024-11-10 06:19:40,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 06:19:40,251 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 06:19:40,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 06:19:40,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 06:19:40,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 06:19:40,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 06:19:40,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 06:19:40,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 06:19:40,302 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 06:19:40,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 06:19:40,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 06:19:40,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 06:19:40,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 06:19:40,306 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 06:19:40,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 06:19:40,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 06:19:40,307 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 06:19:40,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 06:19:40,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 06:19:40,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 06:19:40,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 06:19:40,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 06:19:40,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 06:19:40,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 06:19:40,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 06:19:40,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 06:19:40,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 06:19:40,314 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 06:19:40,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 06:19:40,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 06:19:40,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 06:19:40,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 06:19:40,318 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 06:19:40,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 06:19:40,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 06:19:40,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 06:19:40,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 06:19:40,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 06:19:40,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 06:19:40,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 06:19:40,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 06:19:40,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fab5880c6add66d25f9dda30d1a24e14051ec77fdefc3f83f67a5e43bacfe3df [2024-11-10 06:19:40,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 06:19:40,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 06:19:40,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 06:19:40,617 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 06:19:40,618 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 06:19:40,619 INFO L431 ainManager$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 [2024-11-10 06:19:42,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 06:19:42,489 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 06:19:42,489 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-34.i [2024-11-10 06:19:42,505 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab45a1543/9558194a33af43ee8bcf8bebc12b6711/FLAG1b82bc552 [2024-11-10 06:19:42,524 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab45a1543/9558194a33af43ee8bcf8bebc12b6711 [2024-11-10 06:19:42,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 06:19:42,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 06:19:42,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 06:19:42,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 06:19:42,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 06:19:42,535 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:19:42" (1/1) ... [2024-11-10 06:19:42,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b39ca17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:42, skipping insertion in model container [2024-11-10 06:19:42,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:19:42" (1/1) ... [2024-11-10 06:19:42,570 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 06:19:42,763 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] [2024-11-10 06:19:42,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 06:19:42,895 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 06:19:42,910 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] [2024-11-10 06:19:43,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 06:19:43,072 INFO L204 MainTranslator]: Completed translation [2024-11-10 06:19:43,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43 WrapperNode [2024-11-10 06:19:43,073 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 06:19:43,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 06:19:43,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 06:19:43,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 06:19:43,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,140 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2024-11-10 06:19:43,141 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 06:19:43,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 06:19:43,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 06:19:43,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 06:19:43,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,196 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]. [2024-11-10 06:19:43,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,219 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,226 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,242 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 06:19:43,247 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 06:19:43,247 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 06:19:43,247 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 06:19:43,248 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (1/1) ... [2024-11-10 06:19:43,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 06:19:43,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 06:19:43,298 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) [2024-11-10 06:19:43,311 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 [2024-11-10 06:19:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 06:19:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 06:19:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 06:19:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 06:19:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 06:19:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 06:19:43,450 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 06:19:43,452 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 06:19:43,894 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L193: havoc property_#t~bitwise21#1;havoc property_#t~ite23#1;havoc property_#t~bitwise22#1;havoc property_#t~short24#1; [2024-11-10 06:19:43,950 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-10 06:19:43,950 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 06:19:43,979 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 06:19:43,979 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 06:19:43,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:19:43 BoogieIcfgContainer [2024-11-10 06:19:43,980 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 06:19:43,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 06:19:43,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 06:19:43,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 06:19:43,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:19:42" (1/3) ... [2024-11-10 06:19:43,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4910f047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:19:43, skipping insertion in model container [2024-11-10 06:19:43,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:43" (2/3) ... [2024-11-10 06:19:43,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4910f047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:19:43, skipping insertion in model container [2024-11-10 06:19:43,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:19:43" (3/3) ... [2024-11-10 06:19:43,991 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-34.i [2024-11-10 06:19:44,010 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 06:19:44,011 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 06:19:44,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 06:19:44,086 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;@407bc5fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 06:19:44,087 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 06:19:44,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 77 states have internal predecessors, (112), 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) [2024-11-10 06:19:44,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-10 06:19:44,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:19:44,108 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] [2024-11-10 06:19:44,109 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:19:44,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:19:44,114 INFO L85 PathProgramCache]: Analyzing trace with hash -149973706, now seen corresponding path program 1 times [2024-11-10 06:19:44,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:19:44,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952117249] [2024-11-10 06:19:44,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:19:44,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:19:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:19:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:19:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:19:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:19:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:19:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:19:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:19:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:19:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 06:19:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:19:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 06:19:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:19:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 06:19:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:19:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:19:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:19:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:19:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:19:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:19:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:19:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 06:19:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 06:19:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 06:19:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 06:19:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-10 06:19:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-10 06:19:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 06:19:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:44,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-10 06:19:44,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:19:44,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952117249] [2024-11-10 06:19:44,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952117249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:19:44,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:19:44,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 06:19:44,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296032838] [2024-11-10 06:19:44,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:19:44,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 06:19:44,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:19:44,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 06:19:44,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 06:19:44,845 INFO L87 Difference]: Start difference. First operand has 106 states, 76 states have (on average 1.4736842105263157) internal successors, (112), 77 states have internal predecessors, (112), 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), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-10 06:19:44,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:19:44,897 INFO L93 Difference]: Finished difference Result 204 states and 352 transitions. [2024-11-10 06:19:44,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 06:19:44,903 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), 1 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 181 [2024-11-10 06:19:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:19:44,917 INFO L225 Difference]: With dead ends: 204 [2024-11-10 06:19:44,918 INFO L226 Difference]: Without dead ends: 101 [2024-11-10 06:19:44,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 06:19:44,929 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 06:19:44,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 06:19:44,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-10 06:19:44,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-10 06:19:44,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 72 states have (on average 1.4444444444444444) internal successors, (104), 72 states have internal predecessors, (104), 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) [2024-11-10 06:19:45,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions. [2024-11-10 06:19:45,007 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 181 [2024-11-10 06:19:45,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:19:45,010 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 158 transitions. [2024-11-10 06:19:45,010 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), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-10 06:19:45,011 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions. [2024-11-10 06:19:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-10 06:19:45,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:19:45,016 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] [2024-11-10 06:19:45,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 06:19:45,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:19:45,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:19:45,017 INFO L85 PathProgramCache]: Analyzing trace with hash -319564205, now seen corresponding path program 1 times [2024-11-10 06:19:45,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:19:45,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377660884] [2024-11-10 06:19:45,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:19:45,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:19:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:19:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:19:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:19:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:19:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:19:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:19:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:19:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:19:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 06:19:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:19:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 06:19:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:19:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 06:19:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:19:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:19:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:19:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:19:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:19:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:19:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:19:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 06:19:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 06:19:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 06:19:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 06:19:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-10 06:19:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-10 06:19:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 06:19:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:45,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-10 06:19:45,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:19:45,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377660884] [2024-11-10 06:19:45,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377660884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:19:45,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:19:45,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 06:19:45,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167286956] [2024-11-10 06:19:45,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:19:45,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 06:19:45,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:19:45,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 06:19:45,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 06:19:45,941 INFO L87 Difference]: Start difference. First operand 101 states and 158 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) [2024-11-10 06:19:46,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:19:46,153 INFO L93 Difference]: Finished difference Result 329 states and 515 transitions. [2024-11-10 06:19:46,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 06:19:46,154 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 [2024-11-10 06:19:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:19:46,158 INFO L225 Difference]: With dead ends: 329 [2024-11-10 06:19:46,159 INFO L226 Difference]: Without dead ends: 231 [2024-11-10 06:19:46,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 06:19:46,161 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 172 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 06:19:46,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 479 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 06:19:46,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-10 06:19:46,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 198. [2024-11-10 06:19:46,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 141 states have (on average 1.446808510638298) internal successors, (204), 141 states have internal predecessors, (204), 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) [2024-11-10 06:19:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 312 transitions. [2024-11-10 06:19:46,196 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 312 transitions. Word has length 181 [2024-11-10 06:19:46,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:19:46,197 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 312 transitions. [2024-11-10 06:19:46,197 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) [2024-11-10 06:19:46,198 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 312 transitions. [2024-11-10 06:19:46,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-10 06:19:46,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:19:46,201 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] [2024-11-10 06:19:46,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 06:19:46,202 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:19:46,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:19:46,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1603050021, now seen corresponding path program 1 times [2024-11-10 06:19:46,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:19:46,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677581114] [2024-11-10 06:19:46,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:19:46,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:19:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:19:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:19:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:19:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:19:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:19:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:19:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:19:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:19:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 06:19:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:19:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 06:19:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:19:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 06:19:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:19:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:19:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:19:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:19:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:19:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:19:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:19:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 06:19:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 06:19:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 06:19:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 06:19:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-10 06:19:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-10 06:19:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 06:19:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:46,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-10 06:19:46,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:19:46,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677581114] [2024-11-10 06:19:46,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677581114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:19:46,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:19:46,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 06:19:46,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924411878] [2024-11-10 06:19:46,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:19:46,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 06:19:46,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:19:46,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 06:19:46,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 06:19:46,612 INFO L87 Difference]: Start difference. First operand 198 states and 312 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 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) [2024-11-10 06:19:47,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:19:47,086 INFO L93 Difference]: Finished difference Result 584 states and 920 transitions. [2024-11-10 06:19:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 06:19:47,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 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 [2024-11-10 06:19:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:19:47,095 INFO L225 Difference]: With dead ends: 584 [2024-11-10 06:19:47,097 INFO L226 Difference]: Without dead ends: 389 [2024-11-10 06:19:47,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 06:19:47,103 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 191 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 06:19:47,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 557 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 06:19:47,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-10 06:19:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 202. [2024-11-10 06:19:47,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 145 states have (on average 1.4344827586206896) internal successors, (208), 145 states have internal predecessors, (208), 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) [2024-11-10 06:19:47,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 316 transitions. [2024-11-10 06:19:47,172 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 316 transitions. Word has length 182 [2024-11-10 06:19:47,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:19:47,175 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 316 transitions. [2024-11-10 06:19:47,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 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) [2024-11-10 06:19:47,175 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 316 transitions. [2024-11-10 06:19:47,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-10 06:19:47,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:19:47,183 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] [2024-11-10 06:19:47,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 06:19:47,183 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:19:47,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:19:47,183 INFO L85 PathProgramCache]: Analyzing trace with hash -523736362, now seen corresponding path program 1 times [2024-11-10 06:19:47,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:19:47,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013454682] [2024-11-10 06:19:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:19:47,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:19:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:19:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:19:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:19:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:19:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:19:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:19:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:19:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:19:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 06:19:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:19:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 06:19:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:19:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 06:19:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:19:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:19:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:19:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:19:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:19:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:19:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:19:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 06:19:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 06:19:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 06:19:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 06:19:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-10 06:19:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-10 06:19:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 06:19:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:49,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-10 06:19:49,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:19:49,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013454682] [2024-11-10 06:19:49,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013454682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:19:49,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:19:49,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 06:19:49,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467498694] [2024-11-10 06:19:49,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:19:49,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 06:19:49,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:19:49,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 06:19:49,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 06:19:49,700 INFO L87 Difference]: Start difference. First operand 202 states and 316 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2024-11-10 06:19:50,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:19:50,361 INFO L93 Difference]: Finished difference Result 601 states and 928 transitions. [2024-11-10 06:19:50,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 06:19:50,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2024-11-10 06:19:50,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:19:50,369 INFO L225 Difference]: With dead ends: 601 [2024-11-10 06:19:50,371 INFO L226 Difference]: Without dead ends: 402 [2024-11-10 06:19:50,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 06:19:50,374 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 227 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 06:19:50,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 506 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 06:19:50,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-10 06:19:50,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 282. [2024-11-10 06:19:50,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 197 states have (on average 1.4263959390862944) internal successors, (281), 197 states have internal predecessors, (281), 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) [2024-11-10 06:19:50,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 443 transitions. [2024-11-10 06:19:50,450 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 443 transitions. Word has length 183 [2024-11-10 06:19:50,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:19:50,451 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 443 transitions. [2024-11-10 06:19:50,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2024-11-10 06:19:50,452 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 443 transitions. [2024-11-10 06:19:50,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-10 06:19:50,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:19:50,456 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] [2024-11-10 06:19:50,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 06:19:50,456 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:19:50,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:19:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1315911589, now seen corresponding path program 1 times [2024-11-10 06:19:50,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:19:50,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515979806] [2024-11-10 06:19:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:19:50,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:19:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:19:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:19:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:19:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:19:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:19:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:19:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:19:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:19:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 06:19:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:19:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 06:19:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:19:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 06:19:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:19:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:19:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:19:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:19:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:19:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:19:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:19:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 06:19:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 06:19:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 06:19:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 06:19:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-10 06:19:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-10 06:19:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 06:19:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:19:54,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-10 06:19:54,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:19:54,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515979806] [2024-11-10 06:19:54,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515979806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:19:54,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:19:54,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 06:19:54,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754234846] [2024-11-10 06:19:54,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:19:54,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 06:19:54,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:19:54,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 06:19:54,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-10 06:19:54,164 INFO L87 Difference]: Start difference. First operand 282 states and 443 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) [2024-11-10 06:19:56,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:19:56,807 INFO L93 Difference]: Finished difference Result 747 states and 1124 transitions. [2024-11-10 06:19:56,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 06:19:56,807 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 [2024-11-10 06:19:56,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:19:56,811 INFO L225 Difference]: With dead ends: 747 [2024-11-10 06:19:56,811 INFO L226 Difference]: Without dead ends: 548 [2024-11-10 06:19:56,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-10 06:19:56,813 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 411 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-10 06:19:56,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 872 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-10 06:19:56,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-10 06:19:56,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 373. [2024-11-10 06:19:56,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 276 states have (on average 1.4094202898550725) internal successors, (389), 278 states have internal predecessors, (389), 91 states have call successors, (91), 5 states have call predecessors, (91), 5 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-10 06:19:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 571 transitions. [2024-11-10 06:19:56,864 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 571 transitions. Word has length 183 [2024-11-10 06:19:56,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:19:56,868 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 571 transitions. [2024-11-10 06:19:56,868 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) [2024-11-10 06:19:56,868 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 571 transitions. [2024-11-10 06:19:56,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-10 06:19:56,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:19:56,870 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] [2024-11-10 06:19:56,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 06:19:56,871 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:19:56,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:19:56,871 INFO L85 PathProgramCache]: Analyzing trace with hash 426898746, now seen corresponding path program 1 times [2024-11-10 06:19:56,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:19:56,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024850139] [2024-11-10 06:19:56,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:19:56,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:19:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:20:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:20:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:20:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:20:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:20:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:20:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:20:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:20:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 06:20:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:20:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 06:20:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:20:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 06:20:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:20:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:20:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:20:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:20:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:20:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:20:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:20:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 06:20:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 06:20:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 06:20:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 06:20:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-10 06:20:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-10 06:20:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 06:20:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:00,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-10 06:20:00,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:20:00,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024850139] [2024-11-10 06:20:00,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024850139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:20:00,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:20:00,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 06:20:00,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931637963] [2024-11-10 06:20:00,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:20:00,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 06:20:00,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:20:00,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 06:20:00,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 06:20:00,257 INFO L87 Difference]: Start difference. First operand 373 states and 571 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 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) [2024-11-10 06:20:01,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:20:01,903 INFO L93 Difference]: Finished difference Result 1005 states and 1497 transitions. [2024-11-10 06:20:01,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 06:20:01,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 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 [2024-11-10 06:20:01,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:20:01,911 INFO L225 Difference]: With dead ends: 1005 [2024-11-10 06:20:01,911 INFO L226 Difference]: Without dead ends: 719 [2024-11-10 06:20:01,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-10 06:20:01,914 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 444 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 06:20:01,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 556 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 06:20:01,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-10 06:20:01,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 424. [2024-11-10 06:20:01,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 327 states have (on average 1.4067278287461773) internal successors, (460), 329 states have internal predecessors, (460), 91 states have call successors, (91), 5 states have call predecessors, (91), 5 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-10 06:20:01,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 642 transitions. [2024-11-10 06:20:01,971 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 642 transitions. Word has length 183 [2024-11-10 06:20:01,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:20:01,972 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 642 transitions. [2024-11-10 06:20:01,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 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) [2024-11-10 06:20:01,972 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 642 transitions. [2024-11-10 06:20:01,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-10 06:20:01,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:20:01,975 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] [2024-11-10 06:20:01,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 06:20:01,975 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:20:01,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:20:01,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1512425094, now seen corresponding path program 1 times [2024-11-10 06:20:01,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:20:01,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131913216] [2024-11-10 06:20:01,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:20:01,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:20:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:20:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:20:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:20:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:20:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:20:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:20:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:20:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:20:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 06:20:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:20:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 06:20:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:20:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 06:20:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:20:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:20:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:20:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:20:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:20:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:20:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:20:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 06:20:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 06:20:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 06:20:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 06:20:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-10 06:20:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-10 06:20:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 06:20:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-10 06:20:05,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:20:05,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131913216] [2024-11-10 06:20:05,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131913216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:20:05,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:20:05,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 06:20:05,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794369833] [2024-11-10 06:20:05,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:20:05,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 06:20:05,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:20:05,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 06:20:05,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 06:20:05,285 INFO L87 Difference]: Start difference. First operand 424 states and 642 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 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) [2024-11-10 06:20:07,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:20:07,162 INFO L93 Difference]: Finished difference Result 1082 states and 1592 transitions. [2024-11-10 06:20:07,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 06:20:07,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 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 [2024-11-10 06:20:07,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:20:07,167 INFO L225 Difference]: With dead ends: 1082 [2024-11-10 06:20:07,168 INFO L226 Difference]: Without dead ends: 747 [2024-11-10 06:20:07,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-10 06:20:07,170 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 350 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 06:20:07,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 651 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 06:20:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-10 06:20:07,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 584. [2024-11-10 06:20:07,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 487 states have (on average 1.4168377823408624) internal successors, (690), 489 states have internal predecessors, (690), 91 states have call successors, (91), 5 states have call predecessors, (91), 5 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-10 06:20:07,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 872 transitions. [2024-11-10 06:20:07,226 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 872 transitions. Word has length 183 [2024-11-10 06:20:07,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:20:07,226 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 872 transitions. [2024-11-10 06:20:07,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 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) [2024-11-10 06:20:07,227 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 872 transitions. [2024-11-10 06:20:07,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-10 06:20:07,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:20:07,229 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] [2024-11-10 06:20:07,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 06:20:07,230 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:20:07,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:20:07,231 INFO L85 PathProgramCache]: Analyzing trace with hash 983815447, now seen corresponding path program 1 times [2024-11-10 06:20:07,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:20:07,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031786981] [2024-11-10 06:20:07,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:20:07,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:20:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 06:20:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 06:20:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 06:20:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 06:20:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 06:20:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 06:20:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-10 06:20:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 06:20:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 06:20:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 06:20:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 06:20:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 06:20:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 06:20:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 06:20:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 06:20:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 06:20:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 06:20:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 06:20:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 06:20:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 06:20:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 06:20:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 06:20:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 06:20:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 06:20:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-10 06:20:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-10 06:20:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 06:20:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 06:20:07,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-10 06:20:07,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 06:20:07,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031786981] [2024-11-10 06:20:07,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031786981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 06:20:07,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 06:20:07,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 06:20:07,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809464723] [2024-11-10 06:20:07,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 06:20:07,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 06:20:07,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 06:20:07,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 06:20:07,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 06:20:07,868 INFO L87 Difference]: Start difference. First operand 584 states and 872 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 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) [2024-11-10 06:20:08,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 06:20:08,215 INFO L93 Difference]: Finished difference Result 975 states and 1455 transitions. [2024-11-10 06:20:08,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 06:20:08,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 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 [2024-11-10 06:20:08,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 06:20:08,219 INFO L225 Difference]: With dead ends: 975 [2024-11-10 06:20:08,220 INFO L226 Difference]: Without dead ends: 593 [2024-11-10 06:20:08,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 06:20:08,223 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 123 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 06:20:08,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 381 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 06:20:08,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-10 06:20:08,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 534. [2024-11-10 06:20:08,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 437 states have (on average 1.3844393592677346) internal successors, (605), 439 states have internal predecessors, (605), 91 states have call successors, (91), 5 states have call predecessors, (91), 5 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-10 06:20:08,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 787 transitions. [2024-11-10 06:20:08,282 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 787 transitions. Word has length 183 [2024-11-10 06:20:08,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 06:20:08,282 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 787 transitions. [2024-11-10 06:20:08,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 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) [2024-11-10 06:20:08,283 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 787 transitions. [2024-11-10 06:20:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-10 06:20:08,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 06:20:08,287 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] [2024-11-10 06:20:08,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 06:20:08,288 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 06:20:08,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 06:20:08,288 INFO L85 PathProgramCache]: Analyzing trace with hash 37398108, now seen corresponding path program 1 times [2024-11-10 06:20:08,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 06:20:08,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189033364] [2024-11-10 06:20:08,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 06:20:08,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 06:20:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat