./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-28.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-28.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 affd9b0b1d76ed6c0076d3599bdbad65950dbdf7c49581f4e5a006dd746abe7e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 09:32:33,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 09:32:33,480 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 09:32:33,485 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 09:32:33,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 09:32:33,513 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 09:32:33,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 09:32:33,514 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 09:32:33,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 09:32:33,514 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 09:32:33,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 09:32:33,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 09:32:33,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 09:32:33,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 09:32:33,520 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 09:32:33,521 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 09:32:33,521 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 09:32:33,521 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 09:32:33,522 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 09:32:33,522 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 09:32:33,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 09:32:33,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 09:32:33,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 09:32:33,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 09:32:33,526 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 09:32:33,527 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 09:32:33,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 09:32:33,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 09:32:33,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 09:32:33,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 09:32:33,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 09:32:33,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 09:32:33,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 09:32:33,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 09:32:33,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 09:32:33,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 09:32:33,529 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 09:32:33,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 09:32:33,530 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 09:32:33,530 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 09:32:33,530 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 09:32:33,530 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 09:32:33,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> affd9b0b1d76ed6c0076d3599bdbad65950dbdf7c49581f4e5a006dd746abe7e [2024-11-22 09:32:33,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 09:32:33,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 09:32:33,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 09:32:33,845 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 09:32:33,846 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 09:32:33,847 INFO L431 ainManager$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-28.i [2024-11-22 09:32:35,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 09:32:35,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 09:32:35,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-28.i [2024-11-22 09:32:35,478 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94db6f349/bcc65236a5dc4b92aa89298bfac9e3ed/FLAGace2f88b5 [2024-11-22 09:32:35,492 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94db6f349/bcc65236a5dc4b92aa89298bfac9e3ed [2024-11-22 09:32:35,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 09:32:35,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 09:32:35,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 09:32:35,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 09:32:35,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 09:32:35,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:35,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab43570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35, skipping insertion in model container [2024-11-22 09:32:35,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:35,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 09:32:35,715 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-28.i[919,932] [2024-11-22 09:32:35,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 09:32:35,828 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 09:32:35,840 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-28.i[919,932] [2024-11-22 09:32:35,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 09:32:35,923 INFO L204 MainTranslator]: Completed translation [2024-11-22 09:32:35,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35 WrapperNode [2024-11-22 09:32:35,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 09:32:35,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 09:32:35,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 09:32:35,925 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 09:32:35,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:35,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:35,997 INFO L138 Inliner]: procedures = 26, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 243 [2024-11-22 09:32:35,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 09:32:35,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 09:32:35,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 09:32:35,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 09:32:36,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:36,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:36,018 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:36,061 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 09:32:36,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:36,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:36,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:36,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:36,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:36,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:36,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 09:32:36,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 09:32:36,131 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 09:32:36,131 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 09:32:36,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (1/1) ... [2024-11-22 09:32:36,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 09:32:36,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 09:32:36,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 09:32:36,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 09:32:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 09:32:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 09:32:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 09:32:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 09:32:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 09:32:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 09:32:36,332 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 09:32:36,334 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 09:32:36,922 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-22 09:32:36,923 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 09:32:36,939 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 09:32:36,939 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 09:32:36,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:32:36 BoogieIcfgContainer [2024-11-22 09:32:36,940 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 09:32:36,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 09:32:36,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 09:32:36,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 09:32:36,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:32:35" (1/3) ... [2024-11-22 09:32:36,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416e02f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:32:36, skipping insertion in model container [2024-11-22 09:32:36,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:32:35" (2/3) ... [2024-11-22 09:32:36,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416e02f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:32:36, skipping insertion in model container [2024-11-22 09:32:36,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:32:36" (3/3) ... [2024-11-22 09:32:36,951 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-28.i [2024-11-22 09:32:36,966 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 09:32:36,967 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 09:32:37,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 09:32:37,049 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;@567a4b60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 09:32:37,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 09:32:37,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 72 states have (on average 1.4444444444444444) internal successors, (104), 73 states have internal predecessors, (104), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-22 09:32:37,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-22 09:32:37,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:32:37,075 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:32:37,076 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:32:37,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:32:37,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1448931965, now seen corresponding path program 1 times [2024-11-22 09:32:37,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:32:37,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799371082] [2024-11-22 09:32:37,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:32:37,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:32:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:32:37,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2024-11-22 09:32:37,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 09:32:37,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799371082] [2024-11-22 09:32:37,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799371082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 09:32:37,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106722534] [2024-11-22 09:32:37,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:32:37,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 09:32:37,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 09:32:37,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 09:32:37,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 09:32:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:32:37,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 09:32:37,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 09:32:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2024-11-22 09:32:37,727 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 09:32:37,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106722534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 09:32:37,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 09:32:37,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 09:32:37,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698781361] [2024-11-22 09:32:37,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 09:32:37,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 09:32:37,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 09:32:37,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 09:32:37,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 09:32:37,767 INFO L87 Difference]: Start difference. First operand has 104 states, 72 states have (on average 1.4444444444444444) internal successors, (104), 73 states have internal predecessors, (104), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 09:32:37,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 09:32:37,870 INFO L93 Difference]: Finished difference Result 201 states and 347 transitions. [2024-11-22 09:32:37,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 09:32:37,875 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) Word has length 193 [2024-11-22 09:32:37,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 09:32:37,883 INFO L225 Difference]: With dead ends: 201 [2024-11-22 09:32:37,883 INFO L226 Difference]: Without dead ends: 100 [2024-11-22 09:32:37,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 09:32:37,890 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 09:32:37,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 09:32:37,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-22 09:32:37,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-22 09:32:37,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 69 states have (on average 1.391304347826087) internal successors, (96), 69 states have internal predecessors, (96), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-22 09:32:37,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 154 transitions. [2024-11-22 09:32:37,948 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 154 transitions. Word has length 193 [2024-11-22 09:32:37,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 09:32:37,949 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 154 transitions. [2024-11-22 09:32:37,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 09:32:37,949 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 154 transitions. [2024-11-22 09:32:37,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-22 09:32:37,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:32:37,953 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:32:37,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 09:32:38,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 09:32:38,155 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:32:38,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:32:38,155 INFO L85 PathProgramCache]: Analyzing trace with hash -220564151, now seen corresponding path program 1 times [2024-11-22 09:32:38,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:32:38,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808496721] [2024-11-22 09:32:38,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:32:38,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:32:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:32:38,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-22 09:32:38,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 09:32:38,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808496721] [2024-11-22 09:32:38,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808496721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 09:32:38,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 09:32:38,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 09:32:38,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692762076] [2024-11-22 09:32:38,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 09:32:38,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 09:32:38,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 09:32:38,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 09:32:38,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 09:32:38,600 INFO L87 Difference]: Start difference. First operand 100 states and 154 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:38,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 09:32:38,630 INFO L93 Difference]: Finished difference Result 198 states and 307 transitions. [2024-11-22 09:32:38,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 09:32:38,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 193 [2024-11-22 09:32:38,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 09:32:38,634 INFO L225 Difference]: With dead ends: 198 [2024-11-22 09:32:38,634 INFO L226 Difference]: Without dead ends: 101 [2024-11-22 09:32:38,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 09:32:38,636 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 09:32:38,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 09:32:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-22 09:32:38,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-22 09:32:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 70 states have internal predecessors, (97), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-22 09:32:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 155 transitions. [2024-11-22 09:32:38,656 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 155 transitions. Word has length 193 [2024-11-22 09:32:38,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 09:32:38,661 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 155 transitions. [2024-11-22 09:32:38,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:38,662 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 155 transitions. [2024-11-22 09:32:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-22 09:32:38,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:32:38,665 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:32:38,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 09:32:38,668 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:32:38,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:32:38,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2026002485, now seen corresponding path program 1 times [2024-11-22 09:32:38,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:32:38,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094998058] [2024-11-22 09:32:38,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:32:38,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:32:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:32:38,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-22 09:32:38,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 09:32:38,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094998058] [2024-11-22 09:32:39,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094998058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 09:32:39,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 09:32:39,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 09:32:39,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528916998] [2024-11-22 09:32:39,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 09:32:39,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 09:32:39,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 09:32:39,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 09:32:39,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 09:32:39,005 INFO L87 Difference]: Start difference. First operand 101 states and 155 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:39,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 09:32:39,363 INFO L93 Difference]: Finished difference Result 385 states and 601 transitions. [2024-11-22 09:32:39,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 09:32:39,364 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 193 [2024-11-22 09:32:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 09:32:39,369 INFO L225 Difference]: With dead ends: 385 [2024-11-22 09:32:39,371 INFO L226 Difference]: Without dead ends: 287 [2024-11-22 09:32:39,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 09:32:39,374 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 270 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 09:32:39,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 360 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 09:32:39,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-22 09:32:39,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 247. [2024-11-22 09:32:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 156 states have (on average 1.3269230769230769) internal successors, (207), 156 states have internal predecessors, (207), 87 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-22 09:32:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 381 transitions. [2024-11-22 09:32:39,422 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 381 transitions. Word has length 193 [2024-11-22 09:32:39,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 09:32:39,423 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 381 transitions. [2024-11-22 09:32:39,423 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:39,423 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 381 transitions. [2024-11-22 09:32:39,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-22 09:32:39,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:32:39,430 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:32:39,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 09:32:39,430 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:32:39,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:32:39,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2050110093, now seen corresponding path program 1 times [2024-11-22 09:32:39,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:32:39,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601802835] [2024-11-22 09:32:39,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:32:39,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:32:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:32:39,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-22 09:32:39,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 09:32:39,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601802835] [2024-11-22 09:32:39,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601802835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 09:32:39,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 09:32:39,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 09:32:39,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096824421] [2024-11-22 09:32:39,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 09:32:39,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 09:32:39,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 09:32:39,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 09:32:39,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 09:32:39,616 INFO L87 Difference]: Start difference. First operand 247 states and 381 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 09:32:39,766 INFO L93 Difference]: Finished difference Result 497 states and 774 transitions. [2024-11-22 09:32:39,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 09:32:39,767 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 193 [2024-11-22 09:32:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 09:32:39,774 INFO L225 Difference]: With dead ends: 497 [2024-11-22 09:32:39,774 INFO L226 Difference]: Without dead ends: 301 [2024-11-22 09:32:39,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 09:32:39,777 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 58 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 09:32:39,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 392 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 09:32:39,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-22 09:32:39,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 258. [2024-11-22 09:32:39,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 167 states have (on average 1.3293413173652695) internal successors, (222), 167 states have internal predecessors, (222), 87 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-22 09:32:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 396 transitions. [2024-11-22 09:32:39,820 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 396 transitions. Word has length 193 [2024-11-22 09:32:39,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 09:32:39,822 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 396 transitions. [2024-11-22 09:32:39,822 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, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:39,823 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 396 transitions. [2024-11-22 09:32:39,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-22 09:32:39,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:32:39,826 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:32:39,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 09:32:39,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:32:39,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:32:39,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2104308593, now seen corresponding path program 1 times [2024-11-22 09:32:39,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:32:39,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057970624] [2024-11-22 09:32:39,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:32:39,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:32:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:32:40,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-22 09:32:40,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 09:32:40,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057970624] [2024-11-22 09:32:40,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057970624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 09:32:40,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 09:32:40,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 09:32:40,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219782968] [2024-11-22 09:32:40,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 09:32:40,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 09:32:40,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 09:32:40,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 09:32:40,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 09:32:40,141 INFO L87 Difference]: Start difference. First operand 258 states and 396 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:40,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 09:32:40,231 INFO L93 Difference]: Finished difference Result 461 states and 709 transitions. [2024-11-22 09:32:40,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 09:32:40,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 193 [2024-11-22 09:32:40,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 09:32:40,235 INFO L225 Difference]: With dead ends: 461 [2024-11-22 09:32:40,235 INFO L226 Difference]: Without dead ends: 265 [2024-11-22 09:32:40,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 09:32:40,237 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 61 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 09:32:40,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 252 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 09:32:40,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-22 09:32:40,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 257. [2024-11-22 09:32:40,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 166 states have (on average 1.319277108433735) internal successors, (219), 166 states have internal predecessors, (219), 87 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-22 09:32:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 393 transitions. [2024-11-22 09:32:40,271 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 393 transitions. Word has length 193 [2024-11-22 09:32:40,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 09:32:40,272 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 393 transitions. [2024-11-22 09:32:40,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:40,273 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 393 transitions. [2024-11-22 09:32:40,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-22 09:32:40,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:32:40,275 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:32:40,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 09:32:40,276 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:32:40,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:32:40,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1958832099, now seen corresponding path program 1 times [2024-11-22 09:32:40,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:32:40,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039738035] [2024-11-22 09:32:40,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:32:40,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:32:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:32:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-22 09:32:40,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 09:32:40,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039738035] [2024-11-22 09:32:40,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039738035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 09:32:40,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 09:32:40,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 09:32:40,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573688127] [2024-11-22 09:32:40,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 09:32:40,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 09:32:40,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 09:32:40,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 09:32:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 09:32:40,488 INFO L87 Difference]: Start difference. First operand 257 states and 393 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:40,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 09:32:40,711 INFO L93 Difference]: Finished difference Result 477 states and 734 transitions. [2024-11-22 09:32:40,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 09:32:40,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 194 [2024-11-22 09:32:40,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 09:32:40,714 INFO L225 Difference]: With dead ends: 477 [2024-11-22 09:32:40,714 INFO L226 Difference]: Without dead ends: 282 [2024-11-22 09:32:40,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 09:32:40,719 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 128 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 09:32:40,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 496 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 09:32:40,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-22 09:32:40,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 258. [2024-11-22 09:32:40,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 167 states have (on average 1.3173652694610778) internal successors, (220), 167 states have internal predecessors, (220), 87 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-22 09:32:40,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 394 transitions. [2024-11-22 09:32:40,751 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 394 transitions. Word has length 194 [2024-11-22 09:32:40,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 09:32:40,753 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 394 transitions. [2024-11-22 09:32:40,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:40,753 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 394 transitions. [2024-11-22 09:32:40,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-22 09:32:40,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:32:40,756 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:32:40,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 09:32:40,756 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:32:40,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:32:40,757 INFO L85 PathProgramCache]: Analyzing trace with hash 530696863, now seen corresponding path program 1 times [2024-11-22 09:32:40,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:32:40,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309990993] [2024-11-22 09:32:40,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:32:40,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:32:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:32:40,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-22 09:32:40,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 09:32:40,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309990993] [2024-11-22 09:32:40,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309990993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 09:32:40,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 09:32:40,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 09:32:40,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391889430] [2024-11-22 09:32:40,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 09:32:40,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 09:32:40,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 09:32:40,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 09:32:40,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 09:32:40,974 INFO L87 Difference]: Start difference. First operand 258 states and 394 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:41,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 09:32:41,086 INFO L93 Difference]: Finished difference Result 461 states and 706 transitions. [2024-11-22 09:32:41,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 09:32:41,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 194 [2024-11-22 09:32:41,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 09:32:41,091 INFO L225 Difference]: With dead ends: 461 [2024-11-22 09:32:41,091 INFO L226 Difference]: Without dead ends: 265 [2024-11-22 09:32:41,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 09:32:41,093 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 59 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 09:32:41,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 253 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 09:32:41,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-22 09:32:41,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 257. [2024-11-22 09:32:41,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 166 states have (on average 1.3132530120481927) internal successors, (218), 166 states have internal predecessors, (218), 87 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-22 09:32:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 392 transitions. [2024-11-22 09:32:41,137 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 392 transitions. Word has length 194 [2024-11-22 09:32:41,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 09:32:41,138 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 392 transitions. [2024-11-22 09:32:41,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 392 transitions. [2024-11-22 09:32:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-22 09:32:41,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:32:41,141 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:32:41,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 09:32:41,142 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:32:41,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:32:41,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2079061846, now seen corresponding path program 1 times [2024-11-22 09:32:41,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:32:41,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773920354] [2024-11-22 09:32:41,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:32:41,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:32:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:32:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-22 09:32:41,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 09:32:41,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773920354] [2024-11-22 09:32:41,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773920354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 09:32:41,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 09:32:41,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 09:32:41,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088333491] [2024-11-22 09:32:41,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 09:32:41,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 09:32:41,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 09:32:41,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 09:32:41,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 09:32:41,345 INFO L87 Difference]: Start difference. First operand 257 states and 392 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:41,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 09:32:41,452 INFO L93 Difference]: Finished difference Result 466 states and 714 transitions. [2024-11-22 09:32:41,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 09:32:41,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 195 [2024-11-22 09:32:41,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 09:32:41,456 INFO L225 Difference]: With dead ends: 466 [2024-11-22 09:32:41,456 INFO L226 Difference]: Without dead ends: 270 [2024-11-22 09:32:41,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 09:32:41,457 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 21 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 09:32:41,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 430 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 09:32:41,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-22 09:32:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 256. [2024-11-22 09:32:41,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 165 states have (on average 1.303030303030303) internal successors, (215), 165 states have internal predecessors, (215), 87 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-22 09:32:41,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 389 transitions. [2024-11-22 09:32:41,484 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 389 transitions. Word has length 195 [2024-11-22 09:32:41,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 09:32:41,484 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 389 transitions. [2024-11-22 09:32:41,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:32:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 389 transitions. [2024-11-22 09:32:41,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-22 09:32:41,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:32:41,487 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:32:41,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 09:32:41,487 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:32:41,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:32:41,488 INFO L85 PathProgramCache]: Analyzing trace with hash 410467116, now seen corresponding path program 1 times [2024-11-22 09:32:41,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:32:41,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181145359] [2024-11-22 09:32:41,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:32:41,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:32:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:33:50,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-22 09:33:50,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 09:33:50,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181145359] [2024-11-22 09:33:50,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181145359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 09:33:50,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 09:33:50,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 09:33:50,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764895887] [2024-11-22 09:33:50,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 09:33:50,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 09:33:50,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 09:33:50,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 09:33:50,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-22 09:33:50,824 INFO L87 Difference]: Start difference. First operand 256 states and 389 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:33:53,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 09:33:53,307 INFO L93 Difference]: Finished difference Result 742 states and 1119 transitions. [2024-11-22 09:33:53,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 09:33:53,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 195 [2024-11-22 09:33:53,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 09:33:53,313 INFO L225 Difference]: With dead ends: 742 [2024-11-22 09:33:53,314 INFO L226 Difference]: Without dead ends: 555 [2024-11-22 09:33:53,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-11-22 09:33:53,316 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 348 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 09:33:53,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 759 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 09:33:53,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-22 09:33:53,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 454. [2024-11-22 09:33:53,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 303 states have (on average 1.3333333333333333) internal successors, (404), 303 states have internal predecessors, (404), 145 states have call successors, (145), 5 states have call predecessors, (145), 5 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-22 09:33:53,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 694 transitions. [2024-11-22 09:33:53,360 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 694 transitions. Word has length 195 [2024-11-22 09:33:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 09:33:53,360 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 694 transitions. [2024-11-22 09:33:53,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:33:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 694 transitions. [2024-11-22 09:33:53,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-22 09:33:53,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:33:53,364 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:33:53,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 09:33:53,364 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:33:53,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:33:53,365 INFO L85 PathProgramCache]: Analyzing trace with hash 17440106, now seen corresponding path program 1 times [2024-11-22 09:33:53,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:33:53,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725154696] [2024-11-22 09:33:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:33:53,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:33:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 09:33:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-22 09:33:53,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 09:33:53,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725154696] [2024-11-22 09:33:53,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725154696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 09:33:53,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 09:33:53,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 09:33:53,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400535458] [2024-11-22 09:33:53,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 09:33:53,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 09:33:53,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 09:33:53,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 09:33:53,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 09:33:53,589 INFO L87 Difference]: Start difference. First operand 454 states and 694 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:33:54,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 09:33:54,006 INFO L93 Difference]: Finished difference Result 1105 states and 1692 transitions. [2024-11-22 09:33:54,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 09:33:54,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 195 [2024-11-22 09:33:54,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 09:33:54,013 INFO L225 Difference]: With dead ends: 1105 [2024-11-22 09:33:54,013 INFO L226 Difference]: Without dead ends: 720 [2024-11-22 09:33:54,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 09:33:54,016 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 404 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 09:33:54,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 565 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 09:33:54,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-22 09:33:54,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 609. [2024-11-22 09:33:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 398 states have (on average 1.306532663316583) internal successors, (520), 398 states have internal predecessors, (520), 203 states have call successors, (203), 7 states have call predecessors, (203), 7 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2024-11-22 09:33:54,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 926 transitions. [2024-11-22 09:33:54,103 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 926 transitions. Word has length 195 [2024-11-22 09:33:54,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 09:33:54,104 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 926 transitions. [2024-11-22 09:33:54,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-22 09:33:54,105 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 926 transitions. [2024-11-22 09:33:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-22 09:33:54,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 09:33:54,107 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 09:33:54,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 09:33:54,108 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 09:33:54,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 09:33:54,109 INFO L85 PathProgramCache]: Analyzing trace with hash -600650134, now seen corresponding path program 1 times [2024-11-22 09:33:54,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 09:33:54,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436959083] [2024-11-22 09:33:54,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 09:33:54,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 09:33:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat