./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-11.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-11.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 c075bf31c8a61d5818086da4c01a54dc9522c53729e14bb5c6eb6f9ba650fc63 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:07:03,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:07:03,106 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:07:03,110 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:07:03,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:07:03,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:07:03,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:07:03,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:07:03,143 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:07:03,144 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:07:03,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:07:03,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:07:03,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:07:03,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:07:03,146 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:07:03,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:07:03,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:07:03,147 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:07:03,147 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:07:03,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:07:03,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:07:03,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:07:03,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:07:03,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:07:03,151 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:07:03,152 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:07:03,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:07:03,152 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:07:03,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:07:03,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:07:03,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:07:03,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:07:03,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:07:03,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:07:03,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:07:03,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:07:03,153 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:07:03,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:07:03,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:07:03,154 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:07:03,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:07:03,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:07:03,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c075bf31c8a61d5818086da4c01a54dc9522c53729e14bb5c6eb6f9ba650fc63 [2024-11-18 19:07:03,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:07:03,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:07:03,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:07:03,378 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:07:03,378 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:07:03,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-11.i [2024-11-18 19:07:04,722 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:07:04,915 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:07:04,916 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-11.i [2024-11-18 19:07:04,929 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66f41f575/7150aa7b924d4b179e07767eb57042f2/FLAG2f2eb17cb [2024-11-18 19:07:04,945 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66f41f575/7150aa7b924d4b179e07767eb57042f2 [2024-11-18 19:07:04,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:07:04,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:07:04,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:07:04,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:07:04,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:07:04,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:07:04" (1/1) ... [2024-11-18 19:07:04,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5894f40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:04, skipping insertion in model container [2024-11-18 19:07:04,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:07:04" (1/1) ... [2024-11-18 19:07:04,999 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:07:05,151 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-100_file-11.i[916,929] [2024-11-18 19:07:05,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:07:05,245 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:07:05,256 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-100_file-11.i[916,929] [2024-11-18 19:07:05,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:07:05,321 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:07:05,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05 WrapperNode [2024-11-18 19:07:05,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:07:05,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:07:05,325 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:07:05,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:07:05,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,400 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 318 [2024-11-18 19:07:05,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:07:05,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:07:05,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:07:05,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:07:05,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,462 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 19:07:05,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,501 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,507 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:07:05,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:07:05,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:07:05,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:07:05,508 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (1/1) ... [2024-11-18 19:07:05,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:07:05,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:07:05,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 19:07:05,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 19:07:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:07:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:07:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:07:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:07:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:07:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:07:05,666 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:07:05,668 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:07:06,116 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-18 19:07:06,117 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:07:06,128 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:07:06,129 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:07:06,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:07:06 BoogieIcfgContainer [2024-11-18 19:07:06,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:07:06,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:07:06,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:07:06,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:07:06,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:07:04" (1/3) ... [2024-11-18 19:07:06,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a427c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:07:06, skipping insertion in model container [2024-11-18 19:07:06,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:05" (2/3) ... [2024-11-18 19:07:06,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a427c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:07:06, skipping insertion in model container [2024-11-18 19:07:06,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:07:06" (3/3) ... [2024-11-18 19:07:06,135 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-11.i [2024-11-18 19:07:06,148 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:07:06,148 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:07:06,196 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:07:06,201 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;@22bce35e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:07:06,202 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:07:06,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 91 states have (on average 1.5384615384615385) internal successors, (140), 92 states have internal predecessors, (140), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-18 19:07:06,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-18 19:07:06,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:06,219 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:06,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:06,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:06,224 INFO L85 PathProgramCache]: Analyzing trace with hash -444858248, now seen corresponding path program 1 times [2024-11-18 19:07:06,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:06,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592426058] [2024-11-18 19:07:06,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:06,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:06,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:06,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592426058] [2024-11-18 19:07:06,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592426058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:06,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:06,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:07:06,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504478092] [2024-11-18 19:07:06,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:06,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:07:06,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:06,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:07:06,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:07:06,878 INFO L87 Difference]: Start difference. First operand has 133 states, 91 states have (on average 1.5384615384615385) internal successors, (140), 92 states have internal predecessors, (140), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:06,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:06,958 INFO L93 Difference]: Finished difference Result 326 states and 616 transitions. [2024-11-18 19:07:06,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:07:06,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 250 [2024-11-18 19:07:06,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:06,973 INFO L225 Difference]: With dead ends: 326 [2024-11-18 19:07:06,973 INFO L226 Difference]: Without dead ends: 196 [2024-11-18 19:07:06,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:07:06,983 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 200 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:06,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 408 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:07:07,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-18 19:07:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 129. [2024-11-18 19:07:07,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 88 states have (on average 1.4772727272727273) internal successors, (130), 88 states have internal predecessors, (130), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-18 19:07:07,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 208 transitions. [2024-11-18 19:07:07,038 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 208 transitions. Word has length 250 [2024-11-18 19:07:07,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:07,040 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 208 transitions. [2024-11-18 19:07:07,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:07,041 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 208 transitions. [2024-11-18 19:07:07,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-18 19:07:07,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:07,048 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:07,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 19:07:07,048 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:07,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:07,049 INFO L85 PathProgramCache]: Analyzing trace with hash -659469682, now seen corresponding path program 1 times [2024-11-18 19:07:07,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:07,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325930873] [2024-11-18 19:07:07,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:07,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:07,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:07,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:07,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325930873] [2024-11-18 19:07:07,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325930873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:07,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:07,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:07:07,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424871323] [2024-11-18 19:07:07,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:07,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:07:07,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:07,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:07:07,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:07,440 INFO L87 Difference]: Start difference. First operand 129 states and 208 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:07,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:07,693 INFO L93 Difference]: Finished difference Result 351 states and 567 transitions. [2024-11-18 19:07:07,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:07:07,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 251 [2024-11-18 19:07:07,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:07,701 INFO L225 Difference]: With dead ends: 351 [2024-11-18 19:07:07,702 INFO L226 Difference]: Without dead ends: 225 [2024-11-18 19:07:07,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:07,703 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 333 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:07,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 489 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:07:07,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-18 19:07:07,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 149. [2024-11-18 19:07:07,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 107 states have (on average 1.4953271028037383) internal successors, (160), 107 states have internal predecessors, (160), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-18 19:07:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 238 transitions. [2024-11-18 19:07:07,733 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 238 transitions. Word has length 251 [2024-11-18 19:07:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:07,734 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 238 transitions. [2024-11-18 19:07:07,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 238 transitions. [2024-11-18 19:07:07,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-18 19:07:07,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:07,742 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:07,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:07:07,742 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:07,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:07,743 INFO L85 PathProgramCache]: Analyzing trace with hash 713954525, now seen corresponding path program 1 times [2024-11-18 19:07:07,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:07,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378827741] [2024-11-18 19:07:07,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:07,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:07,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:07,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378827741] [2024-11-18 19:07:07,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378827741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:07,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:07,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:07:07,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644864654] [2024-11-18 19:07:07,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:07,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:07:07,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:07,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:07:07,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:07:07,933 INFO L87 Difference]: Start difference. First operand 149 states and 238 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:07,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:07,961 INFO L93 Difference]: Finished difference Result 296 states and 475 transitions. [2024-11-18 19:07:07,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:07:07,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 252 [2024-11-18 19:07:07,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:07,964 INFO L225 Difference]: With dead ends: 296 [2024-11-18 19:07:07,965 INFO L226 Difference]: Without dead ends: 150 [2024-11-18 19:07:07,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:07:07,968 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 0 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:07,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 408 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:07:07,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-18 19:07:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-18 19:07:07,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 108 states have (on average 1.4907407407407407) internal successors, (161), 108 states have internal predecessors, (161), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-18 19:07:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 239 transitions. [2024-11-18 19:07:07,991 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 239 transitions. Word has length 252 [2024-11-18 19:07:07,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:07,993 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 239 transitions. [2024-11-18 19:07:07,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:07,994 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 239 transitions. [2024-11-18 19:07:07,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-18 19:07:07,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:07,998 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:07,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:07:07,998 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:07,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:08,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1280190181, now seen corresponding path program 1 times [2024-11-18 19:07:08,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:08,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086507998] [2024-11-18 19:07:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:08,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:08,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:08,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:08,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086507998] [2024-11-18 19:07:08,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086507998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:08,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:08,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:07:08,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70571323] [2024-11-18 19:07:08,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:08,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:07:08,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:08,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:07:08,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:07:08,134 INFO L87 Difference]: Start difference. First operand 150 states and 239 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:08,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:08,176 INFO L93 Difference]: Finished difference Result 408 states and 651 transitions. [2024-11-18 19:07:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:07:08,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 252 [2024-11-18 19:07:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:08,180 INFO L225 Difference]: With dead ends: 408 [2024-11-18 19:07:08,180 INFO L226 Difference]: Without dead ends: 261 [2024-11-18 19:07:08,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:07:08,183 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 138 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:08,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 500 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:07:08,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-18 19:07:08,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 258. [2024-11-18 19:07:08,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 192 states have (on average 1.5) internal successors, (288), 193 states have internal predecessors, (288), 61 states have call successors, (61), 4 states have call predecessors, (61), 4 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-18 19:07:08,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 410 transitions. [2024-11-18 19:07:08,215 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 410 transitions. Word has length 252 [2024-11-18 19:07:08,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:08,215 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 410 transitions. [2024-11-18 19:07:08,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:08,216 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 410 transitions. [2024-11-18 19:07:08,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-18 19:07:08,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:08,219 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:08,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:07:08,220 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:08,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash 643037853, now seen corresponding path program 1 times [2024-11-18 19:07:08,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:08,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208714448] [2024-11-18 19:07:08,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:08,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:08,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:08,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:08,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208714448] [2024-11-18 19:07:08,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208714448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:08,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:08,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:07:08,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008771561] [2024-11-18 19:07:08,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:08,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:07:08,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:08,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:07:08,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:07:08,505 INFO L87 Difference]: Start difference. First operand 258 states and 410 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:08,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:08,740 INFO L93 Difference]: Finished difference Result 671 states and 1071 transitions. [2024-11-18 19:07:08,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 19:07:08,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 252 [2024-11-18 19:07:08,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:08,749 INFO L225 Difference]: With dead ends: 671 [2024-11-18 19:07:08,752 INFO L226 Difference]: Without dead ends: 416 [2024-11-18 19:07:08,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:07:08,755 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 449 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:08,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 544 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:07:08,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-18 19:07:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 260. [2024-11-18 19:07:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 194 states have (on average 1.5051546391752577) internal successors, (292), 195 states have internal predecessors, (292), 61 states have call successors, (61), 4 states have call predecessors, (61), 4 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-18 19:07:08,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 414 transitions. [2024-11-18 19:07:08,787 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 414 transitions. Word has length 252 [2024-11-18 19:07:08,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:08,788 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 414 transitions. [2024-11-18 19:07:08,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 414 transitions. [2024-11-18 19:07:08,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-18 19:07:08,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:08,792 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:08,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:07:08,792 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:08,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:08,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1162400481, now seen corresponding path program 1 times [2024-11-18 19:07:08,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:08,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603938063] [2024-11-18 19:07:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:08,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:09,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:09,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:09,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603938063] [2024-11-18 19:07:09,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603938063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:09,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:09,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:07:09,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325094300] [2024-11-18 19:07:09,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:09,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:07:09,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:09,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:07:09,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:07:09,172 INFO L87 Difference]: Start difference. First operand 260 states and 414 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:09,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:09,429 INFO L93 Difference]: Finished difference Result 723 states and 1151 transitions. [2024-11-18 19:07:09,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 19:07:09,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 252 [2024-11-18 19:07:09,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:09,432 INFO L225 Difference]: With dead ends: 723 [2024-11-18 19:07:09,433 INFO L226 Difference]: Without dead ends: 466 [2024-11-18 19:07:09,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:07:09,435 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 604 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:09,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 500 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:07:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-18 19:07:09,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 260. [2024-11-18 19:07:09,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 194 states have (on average 1.5051546391752577) internal successors, (292), 195 states have internal predecessors, (292), 61 states have call successors, (61), 4 states have call predecessors, (61), 4 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-18 19:07:09,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 414 transitions. [2024-11-18 19:07:09,457 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 414 transitions. Word has length 252 [2024-11-18 19:07:09,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:09,461 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 414 transitions. [2024-11-18 19:07:09,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:09,461 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 414 transitions. [2024-11-18 19:07:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-18 19:07:09,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:09,467 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:09,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:07:09,468 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:09,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:09,468 INFO L85 PathProgramCache]: Analyzing trace with hash -703347101, now seen corresponding path program 1 times [2024-11-18 19:07:09,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:09,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143837331] [2024-11-18 19:07:09,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:09,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:09,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:09,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143837331] [2024-11-18 19:07:09,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143837331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:09,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:09,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 19:07:09,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807973230] [2024-11-18 19:07:09,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:09,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 19:07:09,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:09,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 19:07:09,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 19:07:09,739 INFO L87 Difference]: Start difference. First operand 260 states and 414 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:10,493 INFO L93 Difference]: Finished difference Result 967 states and 1528 transitions. [2024-11-18 19:07:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 19:07:10,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 252 [2024-11-18 19:07:10,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:10,500 INFO L225 Difference]: With dead ends: 967 [2024-11-18 19:07:10,500 INFO L226 Difference]: Without dead ends: 710 [2024-11-18 19:07:10,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-18 19:07:10,502 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 691 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:10,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1052 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:07:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-11-18 19:07:10,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 484. [2024-11-18 19:07:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 353 states have (on average 1.4759206798866855) internal successors, (521), 355 states have internal predecessors, (521), 122 states have call successors, (122), 8 states have call predecessors, (122), 8 states have return successors, (122), 120 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-18 19:07:10,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 765 transitions. [2024-11-18 19:07:10,545 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 765 transitions. Word has length 252 [2024-11-18 19:07:10,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:10,546 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 765 transitions. [2024-11-18 19:07:10,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:10,546 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 765 transitions. [2024-11-18 19:07:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-18 19:07:10,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:10,569 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:10,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:07:10,570 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:10,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:10,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1520995551, now seen corresponding path program 1 times [2024-11-18 19:07:10,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:10,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674610096] [2024-11-18 19:07:10,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:10,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:11,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:11,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674610096] [2024-11-18 19:07:11,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674610096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:11,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:11,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:07:11,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275555747] [2024-11-18 19:07:11,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:11,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:07:11,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:11,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:07:11,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:11,076 INFO L87 Difference]: Start difference. First operand 484 states and 765 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:11,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:11,135 INFO L93 Difference]: Finished difference Result 1007 states and 1584 transitions. [2024-11-18 19:07:11,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:07:11,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 252 [2024-11-18 19:07:11,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:11,139 INFO L225 Difference]: With dead ends: 1007 [2024-11-18 19:07:11,139 INFO L226 Difference]: Without dead ends: 526 [2024-11-18 19:07:11,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:11,141 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 32 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:11,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 589 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:07:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-18 19:07:11,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 500. [2024-11-18 19:07:11,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 369 states have (on average 1.4769647696476964) internal successors, (545), 371 states have internal predecessors, (545), 122 states have call successors, (122), 8 states have call predecessors, (122), 8 states have return successors, (122), 120 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-18 19:07:11,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 789 transitions. [2024-11-18 19:07:11,181 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 789 transitions. Word has length 252 [2024-11-18 19:07:11,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:11,182 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 789 transitions. [2024-11-18 19:07:11,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:11,182 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 789 transitions. [2024-11-18 19:07:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-18 19:07:11,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:11,184 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:11,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:07:11,185 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:11,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:11,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1519148509, now seen corresponding path program 1 times [2024-11-18 19:07:11,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:11,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548198239] [2024-11-18 19:07:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:11,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:11,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:11,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548198239] [2024-11-18 19:07:11,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548198239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:11,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:11,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:07:11,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311913188] [2024-11-18 19:07:11,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:11,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:07:11,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:07:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:11,503 INFO L87 Difference]: Start difference. First operand 500 states and 789 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:11,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:11,728 INFO L93 Difference]: Finished difference Result 1328 states and 2105 transitions. [2024-11-18 19:07:11,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:07:11,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 252 [2024-11-18 19:07:11,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:11,733 INFO L225 Difference]: With dead ends: 1328 [2024-11-18 19:07:11,733 INFO L226 Difference]: Without dead ends: 831 [2024-11-18 19:07:11,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:07:11,735 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 192 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:11,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 724 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:07:11,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2024-11-18 19:07:11,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 749. [2024-11-18 19:07:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 577 states have (on average 1.5043327556325823) internal successors, (868), 579 states have internal predecessors, (868), 161 states have call successors, (161), 10 states have call predecessors, (161), 10 states have return successors, (161), 159 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-18 19:07:11,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1190 transitions. [2024-11-18 19:07:11,793 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1190 transitions. Word has length 252 [2024-11-18 19:07:11,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:11,793 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1190 transitions. [2024-11-18 19:07:11,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1190 transitions. [2024-11-18 19:07:11,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-18 19:07:11,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:11,796 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:11,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:07:11,796 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:11,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:11,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1561684595, now seen corresponding path program 1 times [2024-11-18 19:07:11,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:11,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879587414] [2024-11-18 19:07:11,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:11,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:12,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:12,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879587414] [2024-11-18 19:07:12,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879587414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:12,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:12,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 19:07:12,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546254945] [2024-11-18 19:07:12,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:12,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 19:07:12,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:12,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 19:07:12,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-18 19:07:12,928 INFO L87 Difference]: Start difference. First operand 749 states and 1190 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-18 19:07:14,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:14,182 INFO L93 Difference]: Finished difference Result 2531 states and 4015 transitions. [2024-11-18 19:07:14,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 19:07:14,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 253 [2024-11-18 19:07:14,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:14,194 INFO L225 Difference]: With dead ends: 2531 [2024-11-18 19:07:14,194 INFO L226 Difference]: Without dead ends: 1992 [2024-11-18 19:07:14,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:07:14,197 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 1016 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:14,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 773 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 19:07:14,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2024-11-18 19:07:14,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 795. [2024-11-18 19:07:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 623 states have (on average 1.4959871589085072) internal successors, (932), 625 states have internal predecessors, (932), 161 states have call successors, (161), 10 states have call predecessors, (161), 10 states have return successors, (161), 159 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-18 19:07:14,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1254 transitions. [2024-11-18 19:07:14,330 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1254 transitions. Word has length 253 [2024-11-18 19:07:14,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:14,331 INFO L471 AbstractCegarLoop]: Abstraction has 795 states and 1254 transitions. [2024-11-18 19:07:14,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-18 19:07:14,331 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1254 transitions. [2024-11-18 19:07:14,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-18 19:07:14,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:14,334 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:14,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:07:14,334 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:14,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:14,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1702233205, now seen corresponding path program 1 times [2024-11-18 19:07:14,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:14,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14671048] [2024-11-18 19:07:14,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:14,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:14,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:14,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14671048] [2024-11-18 19:07:14,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14671048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:14,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:14,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:07:14,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459205577] [2024-11-18 19:07:14,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:14,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:07:14,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:14,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:07:14,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:07:14,494 INFO L87 Difference]: Start difference. First operand 795 states and 1254 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:14,722 INFO L93 Difference]: Finished difference Result 1532 states and 2415 transitions. [2024-11-18 19:07:14,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:07:14,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 253 [2024-11-18 19:07:14,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:14,728 INFO L225 Difference]: With dead ends: 1532 [2024-11-18 19:07:14,728 INFO L226 Difference]: Without dead ends: 941 [2024-11-18 19:07:14,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:14,731 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 140 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:14,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 754 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:07:14,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-11-18 19:07:14,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 781. [2024-11-18 19:07:14,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 609 states have (on average 1.4876847290640394) internal successors, (906), 611 states have internal predecessors, (906), 161 states have call successors, (161), 10 states have call predecessors, (161), 10 states have return successors, (161), 159 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-18 19:07:14,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1228 transitions. [2024-11-18 19:07:14,842 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1228 transitions. Word has length 253 [2024-11-18 19:07:14,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:14,843 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 1228 transitions. [2024-11-18 19:07:14,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:14,843 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1228 transitions. [2024-11-18 19:07:14,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-18 19:07:14,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:14,846 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:14,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:07:14,846 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:14,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:14,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1850281472, now seen corresponding path program 1 times [2024-11-18 19:07:14,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:14,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595222265] [2024-11-18 19:07:14,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:14,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:15,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:15,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:15,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595222265] [2024-11-18 19:07:15,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595222265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:15,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:15,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:07:15,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31541966] [2024-11-18 19:07:15,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:15,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:07:15,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:15,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:07:15,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:07:15,056 INFO L87 Difference]: Start difference. First operand 781 states and 1228 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:15,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:15,488 INFO L93 Difference]: Finished difference Result 1844 states and 2902 transitions. [2024-11-18 19:07:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 19:07:15,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 254 [2024-11-18 19:07:15,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:15,495 INFO L225 Difference]: With dead ends: 1844 [2024-11-18 19:07:15,495 INFO L226 Difference]: Without dead ends: 1517 [2024-11-18 19:07:15,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:07:15,498 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 307 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:15,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 942 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:07:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2024-11-18 19:07:15,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 809. [2024-11-18 19:07:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 637 states have (on average 1.4913657770800628) internal successors, (950), 639 states have internal predecessors, (950), 161 states have call successors, (161), 10 states have call predecessors, (161), 10 states have return successors, (161), 159 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-18 19:07:15,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1272 transitions. [2024-11-18 19:07:15,640 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1272 transitions. Word has length 254 [2024-11-18 19:07:15,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:15,640 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1272 transitions. [2024-11-18 19:07:15,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1272 transitions. [2024-11-18 19:07:15,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-18 19:07:15,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:15,644 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:15,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:07:15,644 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:15,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:15,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1427579646, now seen corresponding path program 1 times [2024-11-18 19:07:15,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:15,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211065651] [2024-11-18 19:07:15,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:15,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:15,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:15,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211065651] [2024-11-18 19:07:15,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211065651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:15,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:15,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:07:15,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165114459] [2024-11-18 19:07:15,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:15,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:07:15,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:15,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:07:15,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:07:15,794 INFO L87 Difference]: Start difference. First operand 809 states and 1272 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:16,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:16,109 INFO L93 Difference]: Finished difference Result 1340 states and 2112 transitions. [2024-11-18 19:07:16,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:07:16,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 254 [2024-11-18 19:07:16,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:16,115 INFO L225 Difference]: With dead ends: 1340 [2024-11-18 19:07:16,115 INFO L226 Difference]: Without dead ends: 973 [2024-11-18 19:07:16,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:16,118 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 143 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:16,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 544 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:07:16,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2024-11-18 19:07:16,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 813. [2024-11-18 19:07:16,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 641 states have (on average 1.4758190327613105) internal successors, (946), 643 states have internal predecessors, (946), 161 states have call successors, (161), 10 states have call predecessors, (161), 10 states have return successors, (161), 159 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-18 19:07:16,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1268 transitions. [2024-11-18 19:07:16,205 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1268 transitions. Word has length 254 [2024-11-18 19:07:16,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:16,206 INFO L471 AbstractCegarLoop]: Abstraction has 813 states and 1268 transitions. [2024-11-18 19:07:16,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:16,206 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1268 transitions. [2024-11-18 19:07:16,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-18 19:07:16,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:16,208 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:16,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 19:07:16,208 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:16,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:16,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1287031036, now seen corresponding path program 1 times [2024-11-18 19:07:16,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:16,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674888487] [2024-11-18 19:07:16,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:16,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:16,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674888487] [2024-11-18 19:07:16,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674888487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:16,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:16,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:07:16,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986390346] [2024-11-18 19:07:16,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:16,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:07:16,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:16,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:07:16,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:16,521 INFO L87 Difference]: Start difference. First operand 813 states and 1268 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:16,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:16,908 INFO L93 Difference]: Finished difference Result 1296 states and 2032 transitions. [2024-11-18 19:07:16,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:07:16,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 254 [2024-11-18 19:07:16,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:16,914 INFO L225 Difference]: With dead ends: 1296 [2024-11-18 19:07:16,914 INFO L226 Difference]: Without dead ends: 909 [2024-11-18 19:07:16,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:07:16,916 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 427 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:16,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 825 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:07:16,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-18 19:07:16,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 755. [2024-11-18 19:07:17,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 583 states have (on average 1.4648370497427101) internal successors, (854), 585 states have internal predecessors, (854), 161 states have call successors, (161), 10 states have call predecessors, (161), 10 states have return successors, (161), 159 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-18 19:07:17,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1176 transitions. [2024-11-18 19:07:17,004 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1176 transitions. Word has length 254 [2024-11-18 19:07:17,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:17,004 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 1176 transitions. [2024-11-18 19:07:17,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:17,005 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1176 transitions. [2024-11-18 19:07:17,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-18 19:07:17,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:17,007 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:17,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 19:07:17,007 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:17,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:17,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1538630839, now seen corresponding path program 1 times [2024-11-18 19:07:17,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:17,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143828851] [2024-11-18 19:07:17,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:17,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:17,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:17,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143828851] [2024-11-18 19:07:17,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143828851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:17,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:17,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:07:17,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318266108] [2024-11-18 19:07:17,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:17,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:07:17,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:17,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:07:17,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:07:17,225 INFO L87 Difference]: Start difference. First operand 755 states and 1176 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:17,432 INFO L93 Difference]: Finished difference Result 1750 states and 2749 transitions. [2024-11-18 19:07:17,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:07:17,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 254 [2024-11-18 19:07:17,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:17,439 INFO L225 Difference]: With dead ends: 1750 [2024-11-18 19:07:17,439 INFO L226 Difference]: Without dead ends: 1155 [2024-11-18 19:07:17,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:17,443 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 121 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:17,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 663 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:07:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2024-11-18 19:07:17,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 747. [2024-11-18 19:07:17,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 575 states have (on average 1.4539130434782608) internal successors, (836), 577 states have internal predecessors, (836), 161 states have call successors, (161), 10 states have call predecessors, (161), 10 states have return successors, (161), 159 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-18 19:07:17,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1158 transitions. [2024-11-18 19:07:17,532 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1158 transitions. Word has length 254 [2024-11-18 19:07:17,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:17,532 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1158 transitions. [2024-11-18 19:07:17,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:17,533 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1158 transitions. [2024-11-18 19:07:17,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-18 19:07:17,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:17,535 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:17,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 19:07:17,535 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:17,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:17,536 INFO L85 PathProgramCache]: Analyzing trace with hash -246445727, now seen corresponding path program 1 times [2024-11-18 19:07:17,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:17,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559399914] [2024-11-18 19:07:17,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:17,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:17,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:17,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:17,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559399914] [2024-11-18 19:07:17,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559399914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:17,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:17,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:07:17,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179207878] [2024-11-18 19:07:17,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:17,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:07:17,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:07:17,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:07:17,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:17,681 INFO L87 Difference]: Start difference. First operand 747 states and 1158 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:18,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:18,047 INFO L93 Difference]: Finished difference Result 1541 states and 2388 transitions. [2024-11-18 19:07:18,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:07:18,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 254 [2024-11-18 19:07:18,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:18,052 INFO L225 Difference]: With dead ends: 1541 [2024-11-18 19:07:18,053 INFO L226 Difference]: Without dead ends: 994 [2024-11-18 19:07:18,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:07:18,054 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 281 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:18,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 639 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:07:18,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-18 19:07:18,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 988. [2024-11-18 19:07:18,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 764 states have (on average 1.4541884816753927) internal successors, (1111), 768 states have internal predecessors, (1111), 209 states have call successors, (209), 14 states have call predecessors, (209), 14 states have return successors, (209), 205 states have call predecessors, (209), 209 states have call successors, (209) [2024-11-18 19:07:18,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1529 transitions. [2024-11-18 19:07:18,154 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1529 transitions. Word has length 254 [2024-11-18 19:07:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:18,155 INFO L471 AbstractCegarLoop]: Abstraction has 988 states and 1529 transitions. [2024-11-18 19:07:18,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:18,155 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1529 transitions. [2024-11-18 19:07:18,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-18 19:07:18,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:18,157 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:18,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 19:07:18,158 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:18,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:18,158 INFO L85 PathProgramCache]: Analyzing trace with hash 176256099, now seen corresponding path program 1 times [2024-11-18 19:07:18,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:07:18,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079018528] [2024-11-18 19:07:18,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:18,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:07:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 9 proven. 105 refuted. 0 times theorem prover too weak. 2850 trivial. 0 not checked. [2024-11-18 19:07:18,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:07:18,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079018528] [2024-11-18 19:07:18,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079018528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:07:18,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269095538] [2024-11-18 19:07:18,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:18,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:07:18,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:07:18,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:07:18,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:07:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:18,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-18 19:07:18,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:07:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 1508 proven. 51 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked. [2024-11-18 19:07:19,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 19:07:19,507 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-18 19:07:19,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:07:19,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-18 19:07:19,709 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: Modulus must be strictly greater one but is 0 at de.uni_freiburg.informatik.ultimate.util.ArithmeticUtils.multiplicativeInverse(ArithmeticUtils.java:89) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDml.findAllDmlPossibilities(DualJunctionDml.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDml.tryToEliminate(DualJunctionDml.java:184) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:542) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:521) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:514) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:325) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:324) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-18 19:07:19,717 INFO L158 Benchmark]: Toolchain (without parser) took 14767.73ms. Allocated memory was 188.7MB in the beginning and 727.7MB in the end (delta: 539.0MB). Free memory was 119.6MB in the beginning and 483.9MB in the end (delta: -364.3MB). Peak memory consumption was 176.8MB. Max. memory is 16.1GB. [2024-11-18 19:07:19,717 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory was 85.7MB in the beginning and 85.6MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 19:07:19,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.08ms. Allocated memory is still 188.7MB. Free memory was 119.4MB in the beginning and 100.5MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 19:07:19,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.10ms. Allocated memory is still 188.7MB. Free memory was 100.5MB in the beginning and 158.0MB in the end (delta: -57.5MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-11-18 19:07:19,718 INFO L158 Benchmark]: Boogie Preprocessor took 105.91ms. Allocated memory is still 188.7MB. Free memory was 158.0MB in the beginning and 153.0MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 19:07:19,718 INFO L158 Benchmark]: RCFGBuilder took 621.85ms. Allocated memory is still 188.7MB. Free memory was 152.4MB in the beginning and 117.3MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-18 19:07:19,719 INFO L158 Benchmark]: TraceAbstraction took 13585.67ms. Allocated memory was 188.7MB in the beginning and 727.7MB in the end (delta: 539.0MB). Free memory was 116.8MB in the beginning and 483.9MB in the end (delta: -367.1MB). Peak memory consumption was 174.0MB. Max. memory is 16.1GB. [2024-11-18 19:07:19,720 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 121.6MB. Free memory was 85.7MB in the beginning and 85.6MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.08ms. Allocated memory is still 188.7MB. Free memory was 119.4MB in the beginning and 100.5MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.10ms. Allocated memory is still 188.7MB. Free memory was 100.5MB in the beginning and 158.0MB in the end (delta: -57.5MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.91ms. Allocated memory is still 188.7MB. Free memory was 158.0MB in the beginning and 153.0MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 621.85ms. Allocated memory is still 188.7MB. Free memory was 152.4MB in the beginning and 117.3MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13585.67ms. Allocated memory was 188.7MB in the beginning and 727.7MB in the end (delta: 539.0MB). Free memory was 116.8MB in the beginning and 483.9MB in the end (delta: -367.1MB). Peak memory consumption was 174.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: Modulus must be strictly greater one but is 0 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: Modulus must be strictly greater one but is 0: de.uni_freiburg.informatik.ultimate.util.ArithmeticUtils.multiplicativeInverse(ArithmeticUtils.java:89) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-18 19:07:19,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-11.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 c075bf31c8a61d5818086da4c01a54dc9522c53729e14bb5c6eb6f9ba650fc63 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:07:21,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:07:22,037 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 19:07:22,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:07:22,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:07:22,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:07:22,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:07:22,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:07:22,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:07:22,077 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:07:22,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:07:22,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:07:22,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:07:22,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:07:22,079 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:07:22,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:07:22,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:07:22,080 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:07:22,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:07:22,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:07:22,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:07:22,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:07:22,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:07:22,083 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 19:07:22,084 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 19:07:22,084 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:07:22,084 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 19:07:22,084 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:07:22,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:07:22,084 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:07:22,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:07:22,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:07:22,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:07:22,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:07:22,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:07:22,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:07:22,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:07:22,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:07:22,090 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 19:07:22,090 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 19:07:22,090 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:07:22,090 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:07:22,090 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:07:22,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:07:22,091 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c075bf31c8a61d5818086da4c01a54dc9522c53729e14bb5c6eb6f9ba650fc63 [2024-11-18 19:07:22,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:07:22,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:07:22,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:07:22,451 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:07:22,451 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:07:22,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-11.i [2024-11-18 19:07:23,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:07:24,150 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:07:24,150 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-11.i [2024-11-18 19:07:24,162 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f09705488/a321a82ba9f0434089ebfa2e0b15b003/FLAGcff428978 [2024-11-18 19:07:24,176 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f09705488/a321a82ba9f0434089ebfa2e0b15b003 [2024-11-18 19:07:24,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:07:24,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:07:24,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:07:24,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:07:24,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:07:24,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e7d04c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24, skipping insertion in model container [2024-11-18 19:07:24,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,228 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:07:24,402 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-100_file-11.i[916,929] [2024-11-18 19:07:24,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:07:24,534 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:07:24,545 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-100_file-11.i[916,929] [2024-11-18 19:07:24,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:07:24,601 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:07:24,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24 WrapperNode [2024-11-18 19:07:24,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:07:24,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:07:24,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:07:24,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:07:24,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,660 INFO L138 Inliner]: procedures = 27, calls = 52, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 253 [2024-11-18 19:07:24,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:07:24,665 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:07:24,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:07:24,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:07:24,677 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,686 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,702 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 19:07:24,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:07:24,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:07:24,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:07:24,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:07:24,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (1/1) ... [2024-11-18 19:07:24,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:07:24,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:07:24,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 19:07:24,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 19:07:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:07:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 19:07:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:07:24,829 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:07:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:07:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:07:24,935 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:07:24,937 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:07:25,671 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-18 19:07:25,671 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:07:25,684 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:07:25,685 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:07:25,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:07:25 BoogieIcfgContainer [2024-11-18 19:07:25,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:07:25,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:07:25,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:07:25,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:07:25,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:07:24" (1/3) ... [2024-11-18 19:07:25,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57267e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:07:25, skipping insertion in model container [2024-11-18 19:07:25,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:07:24" (2/3) ... [2024-11-18 19:07:25,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57267e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:07:25, skipping insertion in model container [2024-11-18 19:07:25,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:07:25" (3/3) ... [2024-11-18 19:07:25,693 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-11.i [2024-11-18 19:07:25,706 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:07:25,707 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:07:25,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:07:25,781 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;@69c5e5f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:07:25,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:07:25,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 72 states have (on average 1.5) internal successors, (108), 73 states have internal predecessors, (108), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-18 19:07:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-18 19:07:25,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:25,801 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:25,802 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:25,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:25,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1081086981, now seen corresponding path program 1 times [2024-11-18 19:07:25,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 19:07:25,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302980617] [2024-11-18 19:07:25,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:25,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:25,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 19:07:25,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 19:07:25,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-18 19:07:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:26,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:07:26,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:07:26,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 944 proven. 0 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2024-11-18 19:07:26,308 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:07:26,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 19:07:26,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302980617] [2024-11-18 19:07:26,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302980617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:26,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:26,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 19:07:26,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594861732] [2024-11-18 19:07:26,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:26,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:07:26,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 19:07:26,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:07:26,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:07:26,345 INFO L87 Difference]: Start difference. First operand has 114 states, 72 states have (on average 1.5) internal successors, (108), 73 states have internal predecessors, (108), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-18 19:07:26,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:26,389 INFO L93 Difference]: Finished difference Result 221 states and 405 transitions. [2024-11-18 19:07:26,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:07:26,392 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 246 [2024-11-18 19:07:26,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:26,400 INFO L225 Difference]: With dead ends: 221 [2024-11-18 19:07:26,400 INFO L226 Difference]: Without dead ends: 110 [2024-11-18 19:07:26,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:07:26,411 INFO L432 NwaCegarLoop]: 177 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, 177 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:26,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:07:26,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-18 19:07:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-18 19:07:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 69 states have (on average 1.434782608695652) internal successors, (99), 69 states have internal predecessors, (99), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-18 19:07:26,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 177 transitions. [2024-11-18 19:07:26,471 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 177 transitions. Word has length 246 [2024-11-18 19:07:26,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:26,473 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 177 transitions. [2024-11-18 19:07:26,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-18 19:07:26,473 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 177 transitions. [2024-11-18 19:07:26,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-18 19:07:26,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:26,478 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:26,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-18 19:07:26,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:26,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:26,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:26,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1790203267, now seen corresponding path program 1 times [2024-11-18 19:07:26,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 19:07:26,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207302880] [2024-11-18 19:07:26,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:26,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:26,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 19:07:26,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 19:07:26,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-18 19:07:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:27,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 19:07:27,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:07:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:27,082 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:07:27,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 19:07:27,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207302880] [2024-11-18 19:07:27,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207302880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:27,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:27,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:07:27,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471099226] [2024-11-18 19:07:27,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:27,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:07:27,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 19:07:27,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:07:27,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:07:27,087 INFO L87 Difference]: Start difference. First operand 110 states and 177 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:27,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:27,163 INFO L93 Difference]: Finished difference Result 290 states and 469 transitions. [2024-11-18 19:07:27,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:07:27,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 246 [2024-11-18 19:07:27,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:27,167 INFO L225 Difference]: With dead ends: 290 [2024-11-18 19:07:27,168 INFO L226 Difference]: Without dead ends: 183 [2024-11-18 19:07:27,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:07:27,172 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 112 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:27,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 432 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:07:27,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-18 19:07:27,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2024-11-18 19:07:27,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 116 states have (on average 1.4482758620689655) internal successors, (168), 117 states have internal predecessors, (168), 61 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-18 19:07:27,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 290 transitions. [2024-11-18 19:07:27,206 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 290 transitions. Word has length 246 [2024-11-18 19:07:27,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:27,209 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 290 transitions. [2024-11-18 19:07:27,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:27,209 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 290 transitions. [2024-11-18 19:07:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-18 19:07:27,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:27,216 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:27,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-18 19:07:27,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:27,417 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:27,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:27,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2009057985, now seen corresponding path program 1 times [2024-11-18 19:07:27,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 19:07:27,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850176789] [2024-11-18 19:07:27,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:27,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:27,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 19:07:27,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 19:07:27,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-18 19:07:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:27,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 19:07:27,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:07:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:28,819 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:07:28,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 19:07:28,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850176789] [2024-11-18 19:07:28,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850176789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:28,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:28,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:07:28,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246124478] [2024-11-18 19:07:28,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:28,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:07:28,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 19:07:28,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:07:28,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:28,826 INFO L87 Difference]: Start difference. First operand 180 states and 290 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:29,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:29,222 INFO L93 Difference]: Finished difference Result 498 states and 807 transitions. [2024-11-18 19:07:29,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:07:29,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 246 [2024-11-18 19:07:29,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:29,229 INFO L225 Difference]: With dead ends: 498 [2024-11-18 19:07:29,229 INFO L226 Difference]: Without dead ends: 321 [2024-11-18 19:07:29,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:07:29,231 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 133 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:29,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 600 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:07:29,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-18 19:07:29,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 287. [2024-11-18 19:07:29,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 183 states have (on average 1.459016393442623) internal successors, (267), 184 states have internal predecessors, (267), 100 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-18 19:07:29,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 467 transitions. [2024-11-18 19:07:29,281 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 467 transitions. Word has length 246 [2024-11-18 19:07:29,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:29,282 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 467 transitions. [2024-11-18 19:07:29,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 467 transitions. [2024-11-18 19:07:29,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-18 19:07:29,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:29,288 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:29,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-18 19:07:29,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:29,492 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:29,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:29,494 INFO L85 PathProgramCache]: Analyzing trace with hash -677652604, now seen corresponding path program 1 times [2024-11-18 19:07:29,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 19:07:29,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069882472] [2024-11-18 19:07:29,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:29,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:29,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 19:07:29,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 19:07:29,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-18 19:07:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:29,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-18 19:07:29,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:07:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 464 proven. 105 refuted. 0 times theorem prover too weak. 2395 trivial. 0 not checked. [2024-11-18 19:07:30,092 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 19:07:30,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 9 proven. 105 refuted. 0 times theorem prover too weak. 2850 trivial. 0 not checked. [2024-11-18 19:07:30,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 19:07:30,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069882472] [2024-11-18 19:07:30,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069882472] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 19:07:30,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 19:07:30,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-18 19:07:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378472857] [2024-11-18 19:07:30,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 19:07:30,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 19:07:30,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 19:07:30,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 19:07:30,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:07:30,363 INFO L87 Difference]: Start difference. First operand 287 states and 467 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 2 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2024-11-18 19:07:30,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:30,773 INFO L93 Difference]: Finished difference Result 488 states and 775 transitions. [2024-11-18 19:07:30,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 19:07:30,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 2 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 247 [2024-11-18 19:07:30,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:30,780 INFO L225 Difference]: With dead ends: 488 [2024-11-18 19:07:30,781 INFO L226 Difference]: Without dead ends: 311 [2024-11-18 19:07:30,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:07:30,783 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 373 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:30,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 307 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:07:30,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-18 19:07:30,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2024-11-18 19:07:30,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 192 states have (on average 1.4166666666666667) internal successors, (272), 193 states have internal predecessors, (272), 100 states have call successors, (100), 6 states have call predecessors, (100), 6 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-18 19:07:30,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 472 transitions. [2024-11-18 19:07:30,846 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 472 transitions. Word has length 247 [2024-11-18 19:07:30,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:30,848 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 472 transitions. [2024-11-18 19:07:30,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 2 states have call successors, (74), 2 states have call predecessors, (74), 4 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2024-11-18 19:07:30,849 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 472 transitions. [2024-11-18 19:07:30,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-18 19:07:30,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:30,851 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:30,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-18 19:07:31,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:31,055 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:31,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:31,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1200151676, now seen corresponding path program 1 times [2024-11-18 19:07:31,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 19:07:31,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239626844] [2024-11-18 19:07:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:31,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:31,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 19:07:31,060 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 19:07:31,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-18 19:07:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:31,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 19:07:31,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:07:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-11-18 19:07:31,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:07:31,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 19:07:31,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239626844] [2024-11-18 19:07:31,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239626844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:07:31,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:07:31,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:07:31,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764506529] [2024-11-18 19:07:31,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:07:31,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:07:31,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 19:07:31,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:07:31,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:07:31,989 INFO L87 Difference]: Start difference. First operand 299 states and 472 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:33,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:07:33,053 INFO L93 Difference]: Finished difference Result 492 states and 773 transitions. [2024-11-18 19:07:33,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:07:33,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 248 [2024-11-18 19:07:33,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:07:33,056 INFO L225 Difference]: With dead ends: 492 [2024-11-18 19:07:33,056 INFO L226 Difference]: Without dead ends: 307 [2024-11-18 19:07:33,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:07:33,058 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 139 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:07:33,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 436 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 19:07:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-18 19:07:33,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 299. [2024-11-18 19:07:33,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 192 states have (on average 1.3958333333333333) internal successors, (268), 193 states have internal predecessors, (268), 100 states have call successors, (100), 6 states have call predecessors, (100), 6 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-18 19:07:33,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 468 transitions. [2024-11-18 19:07:33,099 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 468 transitions. Word has length 248 [2024-11-18 19:07:33,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:07:33,102 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 468 transitions. [2024-11-18 19:07:33,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2024-11-18 19:07:33,102 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 468 transitions. [2024-11-18 19:07:33,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-18 19:07:33,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:07:33,108 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:07:33,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-18 19:07:33,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:33,309 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:07:33,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:07:33,310 INFO L85 PathProgramCache]: Analyzing trace with hash 122871261, now seen corresponding path program 1 times [2024-11-18 19:07:33,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 19:07:33,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348723398] [2024-11-18 19:07:33,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:07:33,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 19:07:33,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 19:07:33,314 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 19:07:33,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-18 19:07:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:07:33,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-18 19:07:33,625 INFO L278 TraceCheckSpWp]: Computing forward predicates...