./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-75.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_operatoramount_amount500_file-75.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 39440d444684353bf21e24f176d5fedee371419507f0ad109966d3b62ac38d18 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:06:57,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:06:58,073 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:06:58,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:06:58,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:06:58,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:06:58,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:06:58,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:06:58,097 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:06:58,097 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:06:58,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:06:58,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:06:58,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:06:58,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:06:58,099 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:06:58,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:06:58,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:06:58,100 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:06:58,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:06:58,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:06:58,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:06:58,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:06:58,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:06:58,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:06:58,103 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:06:58,104 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:06:58,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:06:58,104 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:06:58,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:06:58,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:06:58,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:06:58,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:06:58,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:06:58,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:06:58,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:06:58,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:06:58,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:06:58,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:06:58,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:06:58,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:06:58,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:06:58,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:06:58,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39440d444684353bf21e24f176d5fedee371419507f0ad109966d3b62ac38d18 [2024-11-19 00:06:58,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:06:58,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:06:58,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:06:58,333 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:06:58,334 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:06:58,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-75.i [2024-11-19 00:06:59,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:06:59,778 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:06:59,780 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-75.i [2024-11-19 00:06:59,798 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90fb66580/34c28c131d05415f80f0374a6e06afc6/FLAGf0d86195c [2024-11-19 00:07:00,092 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90fb66580/34c28c131d05415f80f0374a6e06afc6 [2024-11-19 00:07:00,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:07:00,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:07:00,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:07:00,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:07:00,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:07:00,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:00,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243717d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00, skipping insertion in model container [2024-11-19 00:07:00,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:00,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:07:00,281 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_operatoramount_amount500_file-75.i[916,929] [2024-11-19 00:07:00,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:07:00,507 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:07:00,518 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_operatoramount_amount500_file-75.i[916,929] [2024-11-19 00:07:00,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:07:00,631 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:07:00,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00 WrapperNode [2024-11-19 00:07:00,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:07:00,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:07:00,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:07:00,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:07:00,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:00,661 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:00,807 INFO L138 Inliner]: procedures = 26, calls = 89, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 721 [2024-11-19 00:07:00,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:07:00,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:07:00,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:07:00,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:07:00,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:00,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:00,871 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:00,955 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]. [2024-11-19 00:07:00,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:00,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:00,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:00,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:01,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:01,018 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:01,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:07:01,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:07:01,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:07:01,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:07:01,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (1/1) ... [2024-11-19 00:07:01,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:07:01,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:07:01,060 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) [2024-11-19 00:07:01,063 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 [2024-11-19 00:07:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:07:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:07:01,102 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:07:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:07:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:07:01,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:07:01,208 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:07:01,210 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:07:02,212 INFO L? ?]: Removed 101 outVars from TransFormulas that were not future-live. [2024-11-19 00:07:02,213 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:07:02,233 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:07:02,234 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:07:02,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:07:02 BoogieIcfgContainer [2024-11-19 00:07:02,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:07:02,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:07:02,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:07:02,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:07:02,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:07:00" (1/3) ... [2024-11-19 00:07:02,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651cfc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:07:02, skipping insertion in model container [2024-11-19 00:07:02,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:07:00" (2/3) ... [2024-11-19 00:07:02,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651cfc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:07:02, skipping insertion in model container [2024-11-19 00:07:02,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:07:02" (3/3) ... [2024-11-19 00:07:02,243 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-75.i [2024-11-19 00:07:02,256 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:07:02,257 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:07:02,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:07:02,324 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;@38944d27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:07:02,325 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:07:02,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 293 states, 214 states have (on average 1.514018691588785) internal successors, (324), 215 states have internal predecessors, (324), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-19 00:07:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-19 00:07:02,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:02,365 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:02,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:02,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:02,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2134433407, now seen corresponding path program 1 times [2024-11-19 00:07:02,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:02,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944574345] [2024-11-19 00:07:02,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:02,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:02,919 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2024-11-19 00:07:02,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:02,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944574345] [2024-11-19 00:07:02,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944574345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:07:02,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481777198] [2024-11-19 00:07:02,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:02,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:07:02,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:07:02,925 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) [2024-11-19 00:07:02,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:07:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:03,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:07:03,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:07:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2024-11-19 00:07:03,325 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:07:03,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481777198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:03,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:07:03,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:07:03,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022970289] [2024-11-19 00:07:03,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:03,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:07:03,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:03,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:07:03,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:07:03,359 INFO L87 Difference]: Start difference. First operand has 293 states, 214 states have (on average 1.514018691588785) internal successors, (324), 215 states have internal predecessors, (324), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) Second operand has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-19 00:07:03,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:03,416 INFO L93 Difference]: Finished difference Result 579 states and 1022 transitions. [2024-11-19 00:07:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:07:03,418 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) Word has length 520 [2024-11-19 00:07:03,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:03,425 INFO L225 Difference]: With dead ends: 579 [2024-11-19 00:07:03,425 INFO L226 Difference]: Without dead ends: 289 [2024-11-19 00:07:03,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:07:03,432 INFO L432 NwaCegarLoop]: 469 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, 469 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 [2024-11-19 00:07:03,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:07:03,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-19 00:07:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-11-19 00:07:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 211 states have (on average 1.5023696682464456) internal successors, (317), 211 states have internal predecessors, (317), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-19 00:07:03,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 469 transitions. [2024-11-19 00:07:03,499 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 469 transitions. Word has length 520 [2024-11-19 00:07:03,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:03,501 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 469 transitions. [2024-11-19 00:07:03,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.5) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-19 00:07:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 469 transitions. [2024-11-19 00:07:03,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-19 00:07:03,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:03,511 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:03,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 00:07:03,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 00:07:03,716 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:03,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:03,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1892391371, now seen corresponding path program 1 times [2024-11-19 00:07:03,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:03,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377999236] [2024-11-19 00:07:03,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:03,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:04,159 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-19 00:07:04,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:04,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377999236] [2024-11-19 00:07:04,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377999236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:04,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:04,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:07:04,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572493282] [2024-11-19 00:07:04,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:04,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:07:04,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:04,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:07:04,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:04,164 INFO L87 Difference]: Start difference. First operand 289 states and 469 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:04,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:04,256 INFO L93 Difference]: Finished difference Result 854 states and 1389 transitions. [2024-11-19 00:07:04,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:07:04,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 520 [2024-11-19 00:07:04,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:04,265 INFO L225 Difference]: With dead ends: 854 [2024-11-19 00:07:04,268 INFO L226 Difference]: Without dead ends: 568 [2024-11-19 00:07:04,269 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 [2024-11-19 00:07:04,270 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 450 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:04,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1177 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:07:04,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-19 00:07:04,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 292. [2024-11-19 00:07:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 214 states have (on average 1.5) internal successors, (321), 214 states have internal predecessors, (321), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-19 00:07:04,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 473 transitions. [2024-11-19 00:07:04,313 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 473 transitions. Word has length 520 [2024-11-19 00:07:04,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:04,316 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 473 transitions. [2024-11-19 00:07:04,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:04,317 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 473 transitions. [2024-11-19 00:07:04,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-19 00:07:04,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:04,338 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:04,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:07:04,338 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:04,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:04,340 INFO L85 PathProgramCache]: Analyzing trace with hash -441001267, now seen corresponding path program 1 times [2024-11-19 00:07:04,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:04,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934365184] [2024-11-19 00:07:04,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:04,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:04,691 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-19 00:07:04,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:04,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934365184] [2024-11-19 00:07:04,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934365184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:04,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:04,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:07:04,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106839380] [2024-11-19 00:07:04,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:04,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:07:04,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:04,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:07:04,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:04,698 INFO L87 Difference]: Start difference. First operand 292 states and 473 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:04,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:04,787 INFO L93 Difference]: Finished difference Result 870 states and 1413 transitions. [2024-11-19 00:07:04,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:07:04,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 520 [2024-11-19 00:07:04,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:04,796 INFO L225 Difference]: With dead ends: 870 [2024-11-19 00:07:04,797 INFO L226 Difference]: Without dead ends: 581 [2024-11-19 00:07:04,798 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 [2024-11-19 00:07:04,799 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 448 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:04,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1195 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:07:04,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-19 00:07:04,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 579. [2024-11-19 00:07:04,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 424 states have (on average 1.4976415094339623) internal successors, (635), 424 states have internal predecessors, (635), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-19 00:07:04,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 939 transitions. [2024-11-19 00:07:04,855 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 939 transitions. Word has length 520 [2024-11-19 00:07:04,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:04,858 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 939 transitions. [2024-11-19 00:07:04,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:04,859 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 939 transitions. [2024-11-19 00:07:04,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-19 00:07:04,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:04,865 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:04,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:07:04,866 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:04,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:04,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1487271435, now seen corresponding path program 1 times [2024-11-19 00:07:04,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:04,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724265141] [2024-11-19 00:07:04,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:04,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:05,201 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-19 00:07:05,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:05,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724265141] [2024-11-19 00:07:05,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724265141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:05,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:05,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:07:05,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838535291] [2024-11-19 00:07:05,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:05,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:07:05,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:05,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:07:05,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:05,207 INFO L87 Difference]: Start difference. First operand 579 states and 939 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:05,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:05,286 INFO L93 Difference]: Finished difference Result 1721 states and 2793 transitions. [2024-11-19 00:07:05,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:07:05,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 520 [2024-11-19 00:07:05,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:05,293 INFO L225 Difference]: With dead ends: 1721 [2024-11-19 00:07:05,293 INFO L226 Difference]: Without dead ends: 1145 [2024-11-19 00:07:05,294 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 [2024-11-19 00:07:05,296 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 415 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:05,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 906 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:07:05,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-11-19 00:07:05,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 691. [2024-11-19 00:07:05,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 536 states have (on average 1.5149253731343284) internal successors, (812), 536 states have internal predecessors, (812), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-19 00:07:05,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1116 transitions. [2024-11-19 00:07:05,357 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1116 transitions. Word has length 520 [2024-11-19 00:07:05,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:05,359 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 1116 transitions. [2024-11-19 00:07:05,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:05,360 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1116 transitions. [2024-11-19 00:07:05,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-19 00:07:05,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:05,363 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:05,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:07:05,364 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:05,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1875742637, now seen corresponding path program 1 times [2024-11-19 00:07:05,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:05,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868067348] [2024-11-19 00:07:05,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:05,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-19 00:07:05,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:05,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868067348] [2024-11-19 00:07:05,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868067348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:05,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:05,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:07:05,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423287316] [2024-11-19 00:07:05,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:05,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:07:05,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:05,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:07:05,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:05,947 INFO L87 Difference]: Start difference. First operand 691 states and 1116 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:05,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:05,978 INFO L93 Difference]: Finished difference Result 1379 states and 2229 transitions. [2024-11-19 00:07:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:07:05,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 520 [2024-11-19 00:07:05,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:05,983 INFO L225 Difference]: With dead ends: 1379 [2024-11-19 00:07:05,983 INFO L226 Difference]: Without dead ends: 691 [2024-11-19 00:07:05,984 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 [2024-11-19 00:07:05,985 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 0 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:05,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 931 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:07:05,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-19 00:07:06,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2024-11-19 00:07:06,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 536 states have (on average 1.5111940298507462) internal successors, (810), 536 states have internal predecessors, (810), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-19 00:07:06,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1114 transitions. [2024-11-19 00:07:06,024 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1114 transitions. Word has length 520 [2024-11-19 00:07:06,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:06,025 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 1114 transitions. [2024-11-19 00:07:06,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:06,025 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1114 transitions. [2024-11-19 00:07:06,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-11-19 00:07:06,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:06,028 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:06,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:07:06,028 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:06,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:06,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1347308012, now seen corresponding path program 1 times [2024-11-19 00:07:06,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:06,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616515530] [2024-11-19 00:07:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:06,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:07,923 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-19 00:07:07,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:07,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616515530] [2024-11-19 00:07:07,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616515530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:07,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:07,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:07:07,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136270478] [2024-11-19 00:07:07,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:07,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:07:07,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:07,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:07:07,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:07:07,930 INFO L87 Difference]: Start difference. First operand 691 states and 1114 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:08,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:08,627 INFO L93 Difference]: Finished difference Result 2356 states and 3793 transitions. [2024-11-19 00:07:08,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:07:08,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 521 [2024-11-19 00:07:08,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:08,635 INFO L225 Difference]: With dead ends: 2356 [2024-11-19 00:07:08,635 INFO L226 Difference]: Without dead ends: 1668 [2024-11-19 00:07:08,637 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 [2024-11-19 00:07:08,637 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 925 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:08,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1728 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:07:08,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2024-11-19 00:07:08,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1269. [2024-11-19 00:07:08,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 988 states have (on average 1.508097165991903) internal successors, (1490), 990 states have internal predecessors, (1490), 276 states have call successors, (276), 4 states have call predecessors, (276), 4 states have return successors, (276), 274 states have call predecessors, (276), 276 states have call successors, (276) [2024-11-19 00:07:08,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 2042 transitions. [2024-11-19 00:07:08,723 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 2042 transitions. Word has length 521 [2024-11-19 00:07:08,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:08,724 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 2042 transitions. [2024-11-19 00:07:08,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:08,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 2042 transitions. [2024-11-19 00:07:08,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-11-19 00:07:08,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:08,727 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:08,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:07:08,727 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:08,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:08,728 INFO L85 PathProgramCache]: Analyzing trace with hash -448581962, now seen corresponding path program 1 times [2024-11-19 00:07:08,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:08,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603428452] [2024-11-19 00:07:08,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:08,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:08,940 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-19 00:07:08,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:08,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603428452] [2024-11-19 00:07:08,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603428452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:08,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:08,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:07:08,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121363392] [2024-11-19 00:07:08,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:08,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:07:08,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:08,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:07:08,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:07:08,943 INFO L87 Difference]: Start difference. First operand 1269 states and 2042 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:09,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:09,134 INFO L93 Difference]: Finished difference Result 3363 states and 5422 transitions. [2024-11-19 00:07:09,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:07:09,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 521 [2024-11-19 00:07:09,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:09,147 INFO L225 Difference]: With dead ends: 3363 [2024-11-19 00:07:09,147 INFO L226 Difference]: Without dead ends: 2097 [2024-11-19 00:07:09,150 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 [2024-11-19 00:07:09,151 INFO L432 NwaCegarLoop]: 824 mSDtfsCounter, 395 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:09,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1273 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:07:09,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2097 states. [2024-11-19 00:07:09,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2097 to 1473. [2024-11-19 00:07:09,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 1192 states have (on average 1.5419463087248322) internal successors, (1838), 1194 states have internal predecessors, (1838), 276 states have call successors, (276), 4 states have call predecessors, (276), 4 states have return successors, (276), 274 states have call predecessors, (276), 276 states have call successors, (276) [2024-11-19 00:07:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2390 transitions. [2024-11-19 00:07:09,286 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2390 transitions. Word has length 521 [2024-11-19 00:07:09,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:09,287 INFO L471 AbstractCegarLoop]: Abstraction has 1473 states and 2390 transitions. [2024-11-19 00:07:09,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:09,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2390 transitions. [2024-11-19 00:07:09,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-19 00:07:09,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:09,291 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:09,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:07:09,291 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:09,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2131675118, now seen corresponding path program 1 times [2024-11-19 00:07:09,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:09,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047558170] [2024-11-19 00:07:09,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:09,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:10,875 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-19 00:07:10,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:10,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047558170] [2024-11-19 00:07:10,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047558170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:10,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:10,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:07:10,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715269204] [2024-11-19 00:07:10,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:10,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:07:10,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:10,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:07:10,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:07:10,878 INFO L87 Difference]: Start difference. First operand 1473 states and 2390 transitions. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:11,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:11,840 INFO L93 Difference]: Finished difference Result 4371 states and 7071 transitions. [2024-11-19 00:07:11,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:07:11,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 522 [2024-11-19 00:07:11,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:11,854 INFO L225 Difference]: With dead ends: 4371 [2024-11-19 00:07:11,854 INFO L226 Difference]: Without dead ends: 2901 [2024-11-19 00:07:11,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:07:11,858 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 1067 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:11,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 1515 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:07:11,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2024-11-19 00:07:11,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 980. [2024-11-19 00:07:11,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 823 states have (on average 1.5492102065613609) internal successors, (1275), 823 states have internal predecessors, (1275), 152 states have call successors, (152), 4 states have call predecessors, (152), 4 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-19 00:07:12,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1579 transitions. [2024-11-19 00:07:12,004 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1579 transitions. Word has length 522 [2024-11-19 00:07:12,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:12,004 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1579 transitions. [2024-11-19 00:07:12,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:12,005 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1579 transitions. [2024-11-19 00:07:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-19 00:07:12,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:12,010 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:12,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:07:12,010 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:12,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:12,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1928339118, now seen corresponding path program 1 times [2024-11-19 00:07:12,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:12,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165423022] [2024-11-19 00:07:12,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:12,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-19 00:07:13,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:13,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165423022] [2024-11-19 00:07:13,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165423022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:07:13,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:07:13,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:07:13,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172125065] [2024-11-19 00:07:13,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:07:13,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:07:13,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:13,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:07:13,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:07:13,759 INFO L87 Difference]: Start difference. First operand 980 states and 1579 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:14,702 INFO L93 Difference]: Finished difference Result 3516 states and 5645 transitions. [2024-11-19 00:07:14,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:07:14,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) Word has length 522 [2024-11-19 00:07:14,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:14,712 INFO L225 Difference]: With dead ends: 3516 [2024-11-19 00:07:14,712 INFO L226 Difference]: Without dead ends: 2524 [2024-11-19 00:07:14,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:07:14,715 INFO L432 NwaCegarLoop]: 702 mSDtfsCounter, 1983 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:14,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1983 Valid, 1891 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:07:14,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2024-11-19 00:07:14,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 1666. [2024-11-19 00:07:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1441 states have (on average 1.5544760582928523) internal successors, (2240), 1443 states have internal predecessors, (2240), 218 states have call successors, (218), 6 states have call predecessors, (218), 6 states have return successors, (218), 216 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-19 00:07:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2676 transitions. [2024-11-19 00:07:14,847 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2676 transitions. Word has length 522 [2024-11-19 00:07:14,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:14,848 INFO L471 AbstractCegarLoop]: Abstraction has 1666 states and 2676 transitions. [2024-11-19 00:07:14,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 1 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 1 states have call predecessors, (76), 1 states have call successors, (76) [2024-11-19 00:07:14,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2676 transitions. [2024-11-19 00:07:14,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-19 00:07:14,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:14,852 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:14,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:07:14,852 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:14,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:14,853 INFO L85 PathProgramCache]: Analyzing trace with hash 182987922, now seen corresponding path program 1 times [2024-11-19 00:07:14,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:14,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298848269] [2024-11-19 00:07:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:14,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:07:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:22,204 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 11175 trivial. 0 not checked. [2024-11-19 00:07:22,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:07:22,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298848269] [2024-11-19 00:07:22,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298848269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:07:22,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14090773] [2024-11-19 00:07:22,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:22,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:07:22,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:07:22,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:07:22,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:07:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:07:22,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 00:07:22,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:07:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 3123 proven. 189 refuted. 0 times theorem prover too weak. 8088 trivial. 0 not checked. [2024-11-19 00:07:22,976 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:07:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 36 proven. 189 refuted. 0 times theorem prover too weak. 11175 trivial. 0 not checked. [2024-11-19 00:07:23,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14090773] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:07:23,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:07:23,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 6] total 13 [2024-11-19 00:07:23,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594137143] [2024-11-19 00:07:23,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:07:23,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:07:23,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:07:23,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:07:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:07:23,424 INFO L87 Difference]: Start difference. First operand 1666 states and 2676 transitions. Second operand has 13 states, 13 states have (on average 19.846153846153847) internal successors, (258), 13 states have internal predecessors, (258), 4 states have call successors, (215), 2 states have call predecessors, (215), 4 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2024-11-19 00:07:24,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:07:24,898 INFO L93 Difference]: Finished difference Result 7180 states and 11559 transitions. [2024-11-19 00:07:24,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-19 00:07:24,899 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 19.846153846153847) internal successors, (258), 13 states have internal predecessors, (258), 4 states have call successors, (215), 2 states have call predecessors, (215), 4 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) Word has length 522 [2024-11-19 00:07:24,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:07:24,917 INFO L225 Difference]: With dead ends: 7180 [2024-11-19 00:07:24,917 INFO L226 Difference]: Without dead ends: 5517 [2024-11-19 00:07:24,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1072 GetRequests, 1042 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2024-11-19 00:07:24,923 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 3044 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:07:24,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3056 Valid, 2679 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 00:07:24,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2024-11-19 00:07:25,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 3626. [2024-11-19 00:07:25,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3317 states have (on average 1.5776303889056376) internal successors, (5233), 3319 states have internal predecessors, (5233), 294 states have call successors, (294), 14 states have call predecessors, (294), 14 states have return successors, (294), 292 states have call predecessors, (294), 294 states have call successors, (294) [2024-11-19 00:07:25,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 5821 transitions. [2024-11-19 00:07:25,086 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 5821 transitions. Word has length 522 [2024-11-19 00:07:25,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:07:25,086 INFO L471 AbstractCegarLoop]: Abstraction has 3626 states and 5821 transitions. [2024-11-19 00:07:25,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 19.846153846153847) internal successors, (258), 13 states have internal predecessors, (258), 4 states have call successors, (215), 2 states have call predecessors, (215), 4 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2024-11-19 00:07:25,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 5821 transitions. [2024-11-19 00:07:25,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-19 00:07:25,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:07:25,091 INFO L215 NwaCegarLoop]: trace histogram [76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:07:25,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 00:07:25,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 00:07:25,296 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:07:25,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:07:25,296 INFO L85 PathProgramCache]: Analyzing trace with hash -711368050, now seen corresponding path program 1 times [2024-11-19 00:07:25,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:07:25,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418232869] [2024-11-19 00:07:25,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:07:25,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms