./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-59.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 b8b9ffa0f086760a52bbb5b7ce872ecb50536a94abf6bed664eac71cc82e5722 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 03:34:44,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 03:34:44,343 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 03:34:44,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 03:34:44,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 03:34:44,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 03:34:44,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 03:34:44,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 03:34:44,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 03:34:44,383 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 03:34:44,383 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 03:34:44,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 03:34:44,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 03:34:44,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 03:34:44,385 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 03:34:44,385 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 03:34:44,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 03:34:44,386 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 03:34:44,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 03:34:44,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 03:34:44,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 03:34:44,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 03:34:44,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 03:34:44,390 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 03:34:44,390 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 03:34:44,390 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 03:34:44,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 03:34:44,391 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 03:34:44,391 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 03:34:44,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 03:34:44,392 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 03:34:44,392 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 03:34:44,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 03:34:44,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 03:34:44,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 03:34:44,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 03:34:44,394 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 03:34:44,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 03:34:44,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 03:34:44,395 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 03:34:44,395 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 03:34:44,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 03:34:44,396 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8b9ffa0f086760a52bbb5b7ce872ecb50536a94abf6bed664eac71cc82e5722 [2024-11-20 03:34:44,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 03:34:44,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 03:34:44,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 03:34:44,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 03:34:44,682 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 03:34:44,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-59.i [2024-11-20 03:34:46,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 03:34:46,389 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 03:34:46,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-59.i [2024-11-20 03:34:46,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e542ad7/a0b3eeffd4fa4cbe9c15379e9cc7d352/FLAG9c13f38e4 [2024-11-20 03:34:46,419 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e542ad7/a0b3eeffd4fa4cbe9c15379e9cc7d352 [2024-11-20 03:34:46,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 03:34:46,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 03:34:46,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 03:34:46,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 03:34:46,429 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 03:34:46,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b4f6c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46, skipping insertion in model container [2024-11-20 03:34:46,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 03:34:46,626 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_fillercodesize_ps-cn-25_file-59.i[915,928] [2024-11-20 03:34:46,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 03:34:46,731 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 03:34:46,750 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_fillercodesize_ps-cn-25_file-59.i[915,928] [2024-11-20 03:34:46,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 03:34:46,802 INFO L204 MainTranslator]: Completed translation [2024-11-20 03:34:46,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46 WrapperNode [2024-11-20 03:34:46,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 03:34:46,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 03:34:46,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 03:34:46,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 03:34:46,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,879 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 202 [2024-11-20 03:34:46,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 03:34:46,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 03:34:46,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 03:34:46,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 03:34:46,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,907 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,937 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]. [2024-11-20 03:34:46,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,958 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 03:34:46,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 03:34:46,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 03:34:46,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 03:34:46,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (1/1) ... [2024-11-20 03:34:46,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 03:34:47,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 03:34:47,025 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) [2024-11-20 03:34:47,028 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 [2024-11-20 03:34:47,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 03:34:47,063 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 03:34:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 03:34:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 03:34:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 03:34:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 03:34:47,138 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 03:34:47,140 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 03:34:47,644 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-20 03:34:47,644 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 03:34:47,662 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 03:34:47,663 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 03:34:47,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:34:47 BoogieIcfgContainer [2024-11-20 03:34:47,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 03:34:47,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 03:34:47,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 03:34:47,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 03:34:47,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:34:46" (1/3) ... [2024-11-20 03:34:47,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfe33a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:34:47, skipping insertion in model container [2024-11-20 03:34:47,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:34:46" (2/3) ... [2024-11-20 03:34:47,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfe33a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:34:47, skipping insertion in model container [2024-11-20 03:34:47,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:34:47" (3/3) ... [2024-11-20 03:34:47,675 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-59.i [2024-11-20 03:34:47,693 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 03:34:47,693 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 03:34:47,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 03:34:47,767 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;@4086a884, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 03:34:47,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 03:34:47,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 03:34:47,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 03:34:47,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:34:47,790 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:34:47,790 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:34:47,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:34:47,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1810492343, now seen corresponding path program 1 times [2024-11-20 03:34:47,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:34:47,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866187078] [2024-11-20 03:34:47,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:47,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:34:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:34:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:34:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 03:34:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:34:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 03:34:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:34:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 03:34:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:34:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:34:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 03:34:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 03:34:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 03:34:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 03:34:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 03:34:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 03:34:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 03:34:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 03:34:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 03:34:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 03:34:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 03:34:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 03:34:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 03:34:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 03:34:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 03:34:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 03:34:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 03:34:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 03:34:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:48,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 03:34:48,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:34:48,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866187078] [2024-11-20 03:34:48,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866187078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:34:48,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:34:48,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 03:34:48,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389572362] [2024-11-20 03:34:48,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:34:48,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 03:34:48,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:34:48,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 03:34:48,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 03:34:48,379 INFO L87 Difference]: Start difference. First operand has 86 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 03:34:48,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:34:48,421 INFO L93 Difference]: Finished difference Result 165 states and 289 transitions. [2024-11-20 03:34:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 03:34:48,426 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-20 03:34:48,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:34:48,434 INFO L225 Difference]: With dead ends: 165 [2024-11-20 03:34:48,435 INFO L226 Difference]: Without dead ends: 82 [2024-11-20 03:34:48,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 03:34:48,460 INFO L432 NwaCegarLoop]: 125 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, 125 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 [2024-11-20 03:34:48,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 03:34:48,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-20 03:34:48,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-20 03:34:48,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 03:34:48,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 125 transitions. [2024-11-20 03:34:48,573 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 125 transitions. Word has length 175 [2024-11-20 03:34:48,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:34:48,575 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 125 transitions. [2024-11-20 03:34:48,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 03:34:48,575 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 125 transitions. [2024-11-20 03:34:48,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 03:34:48,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:34:48,582 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:34:48,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 03:34:48,583 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:34:48,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:34:48,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1780209599, now seen corresponding path program 1 times [2024-11-20 03:34:48,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:34:48,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086466349] [2024-11-20 03:34:48,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:48,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:34:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:34:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:34:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 03:34:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:34:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 03:34:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:34:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 03:34:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:34:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:34:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 03:34:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 03:34:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 03:34:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 03:34:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 03:34:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 03:34:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 03:34:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 03:34:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 03:34:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 03:34:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 03:34:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 03:34:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 03:34:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 03:34:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 03:34:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 03:34:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 03:34:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 03:34:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 03:34:49,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:34:49,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086466349] [2024-11-20 03:34:49,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086466349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:34:49,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:34:49,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 03:34:49,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963829968] [2024-11-20 03:34:49,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:34:49,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 03:34:49,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:34:49,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 03:34:49,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 03:34:49,189 INFO L87 Difference]: Start difference. First operand 82 states and 125 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:49,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:34:49,393 INFO L93 Difference]: Finished difference Result 225 states and 343 transitions. [2024-11-20 03:34:49,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 03:34:49,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 03:34:49,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:34:49,398 INFO L225 Difference]: With dead ends: 225 [2024-11-20 03:34:49,398 INFO L226 Difference]: Without dead ends: 146 [2024-11-20 03:34:49,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 03:34:49,401 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 96 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 03:34:49,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 309 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 03:34:49,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-20 03:34:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2024-11-20 03:34:49,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 94 states have internal predecessors, (124), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-20 03:34:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 218 transitions. [2024-11-20 03:34:49,427 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 218 transitions. Word has length 175 [2024-11-20 03:34:49,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:34:49,430 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 218 transitions. [2024-11-20 03:34:49,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 218 transitions. [2024-11-20 03:34:49,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 03:34:49,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:34:49,436 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:34:49,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 03:34:49,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:34:49,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:34:49,437 INFO L85 PathProgramCache]: Analyzing trace with hash 769092349, now seen corresponding path program 1 times [2024-11-20 03:34:49,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:34:49,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277070561] [2024-11-20 03:34:49,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:49,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:34:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:34:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:34:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 03:34:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:34:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 03:34:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:34:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 03:34:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:34:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:34:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 03:34:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 03:34:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 03:34:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 03:34:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 03:34:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 03:34:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 03:34:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 03:34:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 03:34:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 03:34:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 03:34:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 03:34:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 03:34:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 03:34:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 03:34:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 03:34:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 03:34:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 03:34:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:49,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 03:34:49,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:34:49,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277070561] [2024-11-20 03:34:49,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277070561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:34:49,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:34:49,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 03:34:49,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335218474] [2024-11-20 03:34:49,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:34:49,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 03:34:49,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:34:49,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 03:34:49,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 03:34:49,957 INFO L87 Difference]: Start difference. First operand 143 states and 218 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:34:50,010 INFO L93 Difference]: Finished difference Result 422 states and 647 transitions. [2024-11-20 03:34:50,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 03:34:50,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 03:34:50,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:34:50,020 INFO L225 Difference]: With dead ends: 422 [2024-11-20 03:34:50,020 INFO L226 Difference]: Without dead ends: 282 [2024-11-20 03:34:50,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 03:34:50,027 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 71 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 03:34:50,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 273 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 03:34:50,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-20 03:34:50,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 280. [2024-11-20 03:34:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 181 states have (on average 1.3314917127071824) internal successors, (241), 183 states have internal predecessors, (241), 94 states have call successors, (94), 4 states have call predecessors, (94), 4 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-20 03:34:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 429 transitions. [2024-11-20 03:34:50,095 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 429 transitions. Word has length 175 [2024-11-20 03:34:50,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:34:50,096 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 429 transitions. [2024-11-20 03:34:50,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:50,096 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 429 transitions. [2024-11-20 03:34:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-20 03:34:50,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:34:50,117 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:34:50,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 03:34:50,117 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:34:50,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:34:50,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1590851278, now seen corresponding path program 1 times [2024-11-20 03:34:50,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:34:50,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84752035] [2024-11-20 03:34:50,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:50,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:34:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:34:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:34:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 03:34:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:34:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 03:34:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:34:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 03:34:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:34:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:34:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 03:34:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 03:34:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 03:34:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 03:34:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 03:34:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 03:34:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 03:34:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 03:34:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 03:34:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 03:34:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 03:34:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 03:34:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 03:34:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 03:34:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 03:34:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 03:34:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 03:34:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 03:34:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 03:34:50,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:34:50,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84752035] [2024-11-20 03:34:50,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84752035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:34:50,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:34:50,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 03:34:50,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729889774] [2024-11-20 03:34:50,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:34:50,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 03:34:50,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:34:50,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 03:34:50,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 03:34:50,346 INFO L87 Difference]: Start difference. First operand 280 states and 429 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:50,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:34:50,396 INFO L93 Difference]: Finished difference Result 557 states and 855 transitions. [2024-11-20 03:34:50,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 03:34:50,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-20 03:34:50,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:34:50,405 INFO L225 Difference]: With dead ends: 557 [2024-11-20 03:34:50,407 INFO L226 Difference]: Without dead ends: 280 [2024-11-20 03:34:50,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 03:34:50,412 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 03:34:50,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 03:34:50,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-20 03:34:50,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 279. [2024-11-20 03:34:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 180 states have (on average 1.3111111111111111) internal successors, (236), 182 states have internal predecessors, (236), 94 states have call successors, (94), 4 states have call predecessors, (94), 4 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-20 03:34:50,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 424 transitions. [2024-11-20 03:34:50,472 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 424 transitions. Word has length 176 [2024-11-20 03:34:50,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:34:50,475 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 424 transitions. [2024-11-20 03:34:50,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:50,476 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 424 transitions. [2024-11-20 03:34:50,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-20 03:34:50,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:34:50,479 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:34:50,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 03:34:50,479 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:34:50,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:34:50,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1692998768, now seen corresponding path program 1 times [2024-11-20 03:34:50,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:34:50,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374063379] [2024-11-20 03:34:50,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:50,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:34:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:34:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:34:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 03:34:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:34:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 03:34:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:34:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 03:34:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:34:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:34:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 03:34:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 03:34:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 03:34:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 03:34:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 03:34:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 03:34:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 03:34:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 03:34:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 03:34:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 03:34:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 03:34:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 03:34:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 03:34:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 03:34:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 03:34:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 03:34:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 03:34:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 03:34:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:50,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 03:34:50,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:34:50,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374063379] [2024-11-20 03:34:50,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374063379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:34:50,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:34:50,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 03:34:50,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794789086] [2024-11-20 03:34:50,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:34:50,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 03:34:50,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:34:50,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 03:34:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 03:34:50,852 INFO L87 Difference]: Start difference. First operand 279 states and 424 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:34:51,024 INFO L93 Difference]: Finished difference Result 687 states and 1040 transitions. [2024-11-20 03:34:51,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 03:34:51,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-11-20 03:34:51,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:34:51,030 INFO L225 Difference]: With dead ends: 687 [2024-11-20 03:34:51,031 INFO L226 Difference]: Without dead ends: 411 [2024-11-20 03:34:51,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 03:34:51,033 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 85 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 03:34:51,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 356 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 03:34:51,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-20 03:34:51,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 358. [2024-11-20 03:34:51,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 230 states have (on average 1.2695652173913043) internal successors, (292), 232 states have internal predecessors, (292), 121 states have call successors, (121), 6 states have call predecessors, (121), 6 states have return successors, (121), 119 states have call predecessors, (121), 121 states have call successors, (121) [2024-11-20 03:34:51,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 534 transitions. [2024-11-20 03:34:51,087 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 534 transitions. Word has length 176 [2024-11-20 03:34:51,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:34:51,087 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 534 transitions. [2024-11-20 03:34:51,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:51,088 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 534 transitions. [2024-11-20 03:34:51,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-20 03:34:51,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:34:51,090 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:34:51,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 03:34:51,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:34:51,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:34:51,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1751997195, now seen corresponding path program 1 times [2024-11-20 03:34:51,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:34:51,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662901103] [2024-11-20 03:34:51,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:51,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:34:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:34:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:34:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 03:34:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:34:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 03:34:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:34:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 03:34:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:34:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:34:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 03:34:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 03:34:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 03:34:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 03:34:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 03:34:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 03:34:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 03:34:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 03:34:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 03:34:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 03:34:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 03:34:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 03:34:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 03:34:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 03:34:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 03:34:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 03:34:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 03:34:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 03:34:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 03:34:51,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:34:51,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662901103] [2024-11-20 03:34:51,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662901103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:34:51,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:34:51,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 03:34:51,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819202279] [2024-11-20 03:34:51,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:34:51,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 03:34:51,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:34:51,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 03:34:51,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 03:34:51,394 INFO L87 Difference]: Start difference. First operand 358 states and 534 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:51,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:34:51,468 INFO L93 Difference]: Finished difference Result 909 states and 1348 transitions. [2024-11-20 03:34:51,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 03:34:51,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-20 03:34:51,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:34:51,475 INFO L225 Difference]: With dead ends: 909 [2024-11-20 03:34:51,475 INFO L226 Difference]: Without dead ends: 610 [2024-11-20 03:34:51,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 03:34:51,477 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 87 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 03:34:51,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 283 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 03:34:51,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-11-20 03:34:51,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 604. [2024-11-20 03:34:51,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 408 states have (on average 1.2818627450980393) internal successors, (523), 414 states have internal predecessors, (523), 185 states have call successors, (185), 10 states have call predecessors, (185), 10 states have return successors, (185), 179 states have call predecessors, (185), 185 states have call successors, (185) [2024-11-20 03:34:51,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 893 transitions. [2024-11-20 03:34:51,550 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 893 transitions. Word has length 177 [2024-11-20 03:34:51,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:34:51,550 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 893 transitions. [2024-11-20 03:34:51,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:51,551 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 893 transitions. [2024-11-20 03:34:51,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-20 03:34:51,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:34:51,553 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:34:51,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 03:34:51,553 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:34:51,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:34:51,554 INFO L85 PathProgramCache]: Analyzing trace with hash 854026359, now seen corresponding path program 1 times [2024-11-20 03:34:51,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:34:51,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780957972] [2024-11-20 03:34:51,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:51,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:34:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:34:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:34:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 03:34:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:34:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 03:34:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:34:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 03:34:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:34:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:34:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 03:34:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 03:34:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 03:34:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 03:34:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 03:34:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 03:34:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 03:34:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 03:34:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 03:34:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 03:34:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 03:34:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 03:34:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 03:34:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 03:34:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 03:34:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 03:34:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 03:34:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 03:34:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:51,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 03:34:51,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:34:51,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780957972] [2024-11-20 03:34:51,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780957972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:34:51,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:34:51,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 03:34:51,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767263847] [2024-11-20 03:34:51,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:34:51,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 03:34:51,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:34:51,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 03:34:51,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 03:34:51,948 INFO L87 Difference]: Start difference. First operand 604 states and 893 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:52,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:34:52,204 INFO L93 Difference]: Finished difference Result 1666 states and 2488 transitions. [2024-11-20 03:34:52,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 03:34:52,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-11-20 03:34:52,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:34:52,213 INFO L225 Difference]: With dead ends: 1666 [2024-11-20 03:34:52,214 INFO L226 Difference]: Without dead ends: 1168 [2024-11-20 03:34:52,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 03:34:52,217 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 110 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 03:34:52,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 344 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 03:34:52,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-20 03:34:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1100. [2024-11-20 03:34:52,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 738 states have (on average 1.2777777777777777) internal successors, (943), 750 states have internal predecessors, (943), 343 states have call successors, (343), 18 states have call predecessors, (343), 18 states have return successors, (343), 331 states have call predecessors, (343), 343 states have call successors, (343) [2024-11-20 03:34:52,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1629 transitions. [2024-11-20 03:34:52,367 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1629 transitions. Word has length 177 [2024-11-20 03:34:52,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:34:52,367 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1629 transitions. [2024-11-20 03:34:52,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 03:34:52,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1629 transitions. [2024-11-20 03:34:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 03:34:52,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:34:52,370 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:34:52,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 03:34:52,371 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:34:52,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:34:52,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2098796613, now seen corresponding path program 1 times [2024-11-20 03:34:52,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:34:52,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450316444] [2024-11-20 03:34:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:52,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:34:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:34:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:34:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 03:34:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:34:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 03:34:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:34:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 03:34:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:34:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 03:34:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 03:34:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 03:34:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 03:34:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 03:34:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 03:34:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 03:34:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 03:34:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 03:34:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 03:34:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 03:34:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 03:34:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 03:34:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 03:34:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 03:34:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 03:34:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 03:34:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 03:34:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 03:34:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:52,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 36 proven. 42 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-11-20 03:34:52,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:34:52,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450316444] [2024-11-20 03:34:52,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450316444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 03:34:52,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147958165] [2024-11-20 03:34:52,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:52,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 03:34:52,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 03:34:52,945 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) [2024-11-20 03:34:52,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 03:34:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:53,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 03:34:53,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 03:34:53,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 722 proven. 42 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2024-11-20 03:34:53,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 03:34:54,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 36 proven. 42 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-11-20 03:34:54,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147958165] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 03:34:54,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 03:34:54,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 18 [2024-11-20 03:34:54,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84572602] [2024-11-20 03:34:54,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 03:34:54,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 03:34:54,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:34:54,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 03:34:54,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-20 03:34:54,364 INFO L87 Difference]: Start difference. First operand 1100 states and 1629 transitions. Second operand has 18 states, 18 states have (on average 6.722222222222222) internal successors, (121), 18 states have internal predecessors, (121), 5 states have call successors, (68), 3 states have call predecessors, (68), 6 states have return successors, (69), 5 states have call predecessors, (69), 5 states have call successors, (69) [2024-11-20 03:34:55,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:34:55,896 INFO L93 Difference]: Finished difference Result 3558 states and 5142 transitions. [2024-11-20 03:34:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-20 03:34:55,897 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.722222222222222) internal successors, (121), 18 states have internal predecessors, (121), 5 states have call successors, (68), 3 states have call predecessors, (68), 6 states have return successors, (69), 5 states have call predecessors, (69), 5 states have call successors, (69) Word has length 178 [2024-11-20 03:34:55,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:34:55,914 INFO L225 Difference]: With dead ends: 3558 [2024-11-20 03:34:55,914 INFO L226 Difference]: Without dead ends: 2564 [2024-11-20 03:34:55,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 400 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=366, Invalid=1440, Unknown=0, NotChecked=0, Total=1806 [2024-11-20 03:34:55,921 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 520 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 03:34:55,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 905 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 03:34:55,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2024-11-20 03:34:56,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 1240. [2024-11-20 03:34:56,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 861 states have (on average 1.2473867595818815) internal successors, (1074), 873 states have internal predecessors, (1074), 343 states have call successors, (343), 35 states have call predecessors, (343), 35 states have return successors, (343), 331 states have call predecessors, (343), 343 states have call successors, (343) [2024-11-20 03:34:56,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1760 transitions. [2024-11-20 03:34:56,138 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1760 transitions. Word has length 178 [2024-11-20 03:34:56,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:34:56,139 INFO L471 AbstractCegarLoop]: Abstraction has 1240 states and 1760 transitions. [2024-11-20 03:34:56,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.722222222222222) internal successors, (121), 18 states have internal predecessors, (121), 5 states have call successors, (68), 3 states have call predecessors, (68), 6 states have return successors, (69), 5 states have call predecessors, (69), 5 states have call successors, (69) [2024-11-20 03:34:56,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1760 transitions. [2024-11-20 03:34:56,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 03:34:56,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:34:56,142 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 03:34:56,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 03:34:56,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 03:34:56,344 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:34:56,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:34:56,345 INFO L85 PathProgramCache]: Analyzing trace with hash 323789251, now seen corresponding path program 1 times [2024-11-20 03:34:56,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:34:56,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409669136] [2024-11-20 03:34:56,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:56,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:34:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 03:34:56,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813684039] [2024-11-20 03:34:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:34:56,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 03:34:56,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 03:34:56,512 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 03:34:56,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 03:34:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:34:56,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-20 03:34:56,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 03:34:59,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 338 proven. 300 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2024-11-20 03:34:59,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 03:35:21,653 WARN L286 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-20 03:35:32,703 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-20 03:36:09,310 WARN L286 SmtUtils]: Spent 12.56s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)