./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label44.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/eca-rers2012/Problem15_label44.c -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 615f5d053860bb060d59c74904029b4b08523188eca53d2f384305e3b3f0c7ed --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:10:16,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:10:16,421 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:10:16,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:10:16,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:10:16,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:10:16,446 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:10:16,447 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:10:16,447 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:10:16,450 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:10:16,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:10:16,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:10:16,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:10:16,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:10:16,451 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:10:16,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:10:16,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:10:16,452 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:10:16,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:10:16,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:10:16,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:10:16,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:10:16,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:10:16,455 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:10:16,455 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:10:16,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:10:16,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:10:16,456 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:10:16,456 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:10:16,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:10:16,456 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:10:16,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:10:16,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:10:16,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:10:16,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:10:16,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:10:16,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:10:16,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:10:16,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:10:16,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:10:16,459 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:10:16,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:10:16,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 615f5d053860bb060d59c74904029b4b08523188eca53d2f384305e3b3f0c7ed [2024-11-16 04:10:16,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:10:16,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:10:16,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:10:16,667 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:10:16,667 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:10:16,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label44.c [2024-11-16 04:10:18,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:10:18,282 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:10:18,284 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label44.c [2024-11-16 04:10:18,305 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9fe4fd0c/68577c1f98814ba6a810837fad242533/FLAG58f6b0424 [2024-11-16 04:10:18,316 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9fe4fd0c/68577c1f98814ba6a810837fad242533 [2024-11-16 04:10:18,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:10:18,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:10:18,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:10:18,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:10:18,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:10:18,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:10:18" (1/1) ... [2024-11-16 04:10:18,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b5190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:18, skipping insertion in model container [2024-11-16 04:10:18,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:10:18" (1/1) ... [2024-11-16 04:10:18,386 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:10:18,627 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/eca-rers2012/Problem15_label44.c[8025,8038] [2024-11-16 04:10:18,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:10:18,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:10:18,925 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/eca-rers2012/Problem15_label44.c[8025,8038] [2024-11-16 04:10:19,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:10:19,084 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:10:19,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19 WrapperNode [2024-11-16 04:10:19,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:10:19,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:10:19,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:10:19,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:10:19,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,279 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-16 04:10:19,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:10:19,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:10:19,281 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:10:19,281 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:10:19,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,303 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,365 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]. [2024-11-16 04:10:19,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,418 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:10:19,577 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:10:19,581 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:10:19,581 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:10:19,582 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (1/1) ... [2024-11-16 04:10:19,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:10:19,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:10:19,668 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) [2024-11-16 04:10:19,670 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 [2024-11-16 04:10:19,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:10:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:10:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:10:19,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:10:19,778 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:10:19,780 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:10:21,565 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2024-11-16 04:10:21,649 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-16 04:10:21,650 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:10:21,674 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:10:21,677 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:10:21,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:10:21 BoogieIcfgContainer [2024-11-16 04:10:21,677 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:10:21,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:10:21,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:10:21,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:10:21,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:10:18" (1/3) ... [2024-11-16 04:10:21,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da05343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:10:21, skipping insertion in model container [2024-11-16 04:10:21,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:19" (2/3) ... [2024-11-16 04:10:21,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da05343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:10:21, skipping insertion in model container [2024-11-16 04:10:21,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:10:21" (3/3) ... [2024-11-16 04:10:21,687 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label44.c [2024-11-16 04:10:21,699 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:10:21,700 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:10:21,763 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:10:21,770 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;@1acf1d31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:10:21,770 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:10:21,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 427 states, 425 states have (on average 1.771764705882353) internal successors, (753), 426 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:21,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 04:10:21,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:21,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:21,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:21,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:21,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1278057566, now seen corresponding path program 1 times [2024-11-16 04:10:21,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:21,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414857893] [2024-11-16 04:10:21,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:21,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:22,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:10:22,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:22,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414857893] [2024-11-16 04:10:22,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414857893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:22,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:22,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:10:22,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88593862] [2024-11-16 04:10:22,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:22,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:22,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:22,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:22,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:22,207 INFO L87 Difference]: Start difference. First operand has 427 states, 425 states have (on average 1.771764705882353) internal successors, (753), 426 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:23,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:23,941 INFO L93 Difference]: Finished difference Result 1160 states and 2112 transitions. [2024-11-16 04:10:23,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:23,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-16 04:10:23,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:23,962 INFO L225 Difference]: With dead ends: 1160 [2024-11-16 04:10:23,962 INFO L226 Difference]: Without dead ends: 668 [2024-11-16 04:10:23,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:23,972 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 255 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:23,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 389 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 04:10:23,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-16 04:10:24,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 666. [2024-11-16 04:10:24,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 665 states have (on average 1.4796992481203008) internal successors, (984), 665 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:24,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 984 transitions. [2024-11-16 04:10:24,052 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 984 transitions. Word has length 68 [2024-11-16 04:10:24,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:24,053 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 984 transitions. [2024-11-16 04:10:24,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:24,053 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 984 transitions. [2024-11-16 04:10:24,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 04:10:24,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:24,060 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:24,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:10:24,060 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:24,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:24,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1613373733, now seen corresponding path program 1 times [2024-11-16 04:10:24,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:24,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536583377] [2024-11-16 04:10:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:24,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:10:24,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:24,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536583377] [2024-11-16 04:10:24,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536583377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:24,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:24,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:10:24,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591390970] [2024-11-16 04:10:24,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:24,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:24,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:24,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:24,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:24,439 INFO L87 Difference]: Start difference. First operand 666 states and 984 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:25,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:25,485 INFO L93 Difference]: Finished difference Result 1631 states and 2322 transitions. [2024-11-16 04:10:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:25,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-11-16 04:10:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:25,489 INFO L225 Difference]: With dead ends: 1631 [2024-11-16 04:10:25,489 INFO L226 Difference]: Without dead ends: 967 [2024-11-16 04:10:25,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:25,491 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 237 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:25,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 341 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:10:25,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-11-16 04:10:25,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 967. [2024-11-16 04:10:25,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 966 states have (on average 1.3612836438923395) internal successors, (1315), 966 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:25,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1315 transitions. [2024-11-16 04:10:25,507 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1315 transitions. Word has length 134 [2024-11-16 04:10:25,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:25,508 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1315 transitions. [2024-11-16 04:10:25,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:25,508 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1315 transitions. [2024-11-16 04:10:25,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 04:10:25,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:25,509 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:25,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:10:25,510 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:25,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:25,510 INFO L85 PathProgramCache]: Analyzing trace with hash 205609940, now seen corresponding path program 1 times [2024-11-16 04:10:25,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:25,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267413994] [2024-11-16 04:10:25,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:25,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:10:25,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:25,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267413994] [2024-11-16 04:10:25,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267413994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:25,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:25,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:10:25,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379035544] [2024-11-16 04:10:25,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:25,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 04:10:25,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:25,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 04:10:25,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:10:25,752 INFO L87 Difference]: Start difference. First operand 967 states and 1315 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:27,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:27,314 INFO L93 Difference]: Finished difference Result 2249 states and 3206 transitions. [2024-11-16 04:10:27,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:10:27,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-11-16 04:10:27,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:27,320 INFO L225 Difference]: With dead ends: 2249 [2024-11-16 04:10:27,320 INFO L226 Difference]: Without dead ends: 1584 [2024-11-16 04:10:27,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:10:27,322 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 358 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:27,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 375 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:10:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2024-11-16 04:10:27,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1271. [2024-11-16 04:10:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 1.3031496062992125) internal successors, (1655), 1270 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:27,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1655 transitions. [2024-11-16 04:10:27,344 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1655 transitions. Word has length 139 [2024-11-16 04:10:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:27,345 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 1655 transitions. [2024-11-16 04:10:27,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1655 transitions. [2024-11-16 04:10:27,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-16 04:10:27,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:27,348 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:27,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:10:27,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:27,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:27,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1765067687, now seen corresponding path program 1 times [2024-11-16 04:10:27,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:27,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016696229] [2024-11-16 04:10:27,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:27,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:27,598 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:10:27,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:27,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016696229] [2024-11-16 04:10:27,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016696229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:27,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:27,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:27,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426965561] [2024-11-16 04:10:27,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:27,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:10:27,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:27,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:10:27,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:10:27,601 INFO L87 Difference]: Start difference. First operand 1271 states and 1655 transitions. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:29,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:29,923 INFO L93 Difference]: Finished difference Result 4688 states and 6188 transitions. [2024-11-16 04:10:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:10:29,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2024-11-16 04:10:29,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:29,932 INFO L225 Difference]: With dead ends: 4688 [2024-11-16 04:10:29,933 INFO L226 Difference]: Without dead ends: 3419 [2024-11-16 04:10:29,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:10:29,939 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 490 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:29,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 355 Invalid, 2238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 04:10:29,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2024-11-16 04:10:29,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3393. [2024-11-16 04:10:29,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3393 states, 3392 states have (on average 1.2358490566037736) internal successors, (4192), 3392 states have internal predecessors, (4192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:29,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3393 states to 3393 states and 4192 transitions. [2024-11-16 04:10:29,983 INFO L78 Accepts]: Start accepts. Automaton has 3393 states and 4192 transitions. Word has length 236 [2024-11-16 04:10:29,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:29,984 INFO L471 AbstractCegarLoop]: Abstraction has 3393 states and 4192 transitions. [2024-11-16 04:10:29,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:29,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3393 states and 4192 transitions. [2024-11-16 04:10:29,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-16 04:10:29,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:29,988 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:29,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:10:29,989 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:29,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:29,989 INFO L85 PathProgramCache]: Analyzing trace with hash -56056803, now seen corresponding path program 1 times [2024-11-16 04:10:29,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:29,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719954651] [2024-11-16 04:10:29,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:29,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:30,162 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 04:10:30,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:30,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719954651] [2024-11-16 04:10:30,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719954651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:30,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:30,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:10:30,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900535978] [2024-11-16 04:10:30,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:30,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:30,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:30,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:30,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:30,165 INFO L87 Difference]: Start difference. First operand 3393 states and 4192 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:31,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:31,362 INFO L93 Difference]: Finished difference Result 8594 states and 10785 transitions. [2024-11-16 04:10:31,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:31,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2024-11-16 04:10:31,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:31,375 INFO L225 Difference]: With dead ends: 8594 [2024-11-16 04:10:31,375 INFO L226 Difference]: Without dead ends: 5503 [2024-11-16 04:10:31,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:31,379 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 258 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:31,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 345 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:10:31,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2024-11-16 04:10:31,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5497. [2024-11-16 04:10:31,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5497 states, 5496 states have (on average 1.168122270742358) internal successors, (6420), 5496 states have internal predecessors, (6420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:31,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5497 states to 5497 states and 6420 transitions. [2024-11-16 04:10:31,448 INFO L78 Accepts]: Start accepts. Automaton has 5497 states and 6420 transitions. Word has length 240 [2024-11-16 04:10:31,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:31,448 INFO L471 AbstractCegarLoop]: Abstraction has 5497 states and 6420 transitions. [2024-11-16 04:10:31,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:31,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5497 states and 6420 transitions. [2024-11-16 04:10:31,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-16 04:10:31,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:31,452 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:31,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:10:31,452 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:31,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:31,453 INFO L85 PathProgramCache]: Analyzing trace with hash 588987059, now seen corresponding path program 1 times [2024-11-16 04:10:31,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:31,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634180788] [2024-11-16 04:10:31,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:31,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:31,928 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-16 04:10:31,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:31,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634180788] [2024-11-16 04:10:31,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634180788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:31,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:31,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:10:31,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451478685] [2024-11-16 04:10:31,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:31,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:31,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:31,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:31,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:31,930 INFO L87 Difference]: Start difference. First operand 5497 states and 6420 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:33,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:33,347 INFO L93 Difference]: Finished difference Result 10692 states and 12526 transitions. [2024-11-16 04:10:33,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:33,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 342 [2024-11-16 04:10:33,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:33,360 INFO L225 Difference]: With dead ends: 10692 [2024-11-16 04:10:33,360 INFO L226 Difference]: Without dead ends: 5497 [2024-11-16 04:10:33,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:33,363 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 105 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:33,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 363 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:10:33,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2024-11-16 04:10:33,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 5497. [2024-11-16 04:10:33,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5497 states, 5496 states have (on average 1.1670305676855894) internal successors, (6414), 5496 states have internal predecessors, (6414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:33,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5497 states to 5497 states and 6414 transitions. [2024-11-16 04:10:33,418 INFO L78 Accepts]: Start accepts. Automaton has 5497 states and 6414 transitions. Word has length 342 [2024-11-16 04:10:33,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:33,418 INFO L471 AbstractCegarLoop]: Abstraction has 5497 states and 6414 transitions. [2024-11-16 04:10:33,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5497 states and 6414 transitions. [2024-11-16 04:10:33,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-16 04:10:33,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:33,422 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:33,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:10:33,422 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:33,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:33,422 INFO L85 PathProgramCache]: Analyzing trace with hash 14560754, now seen corresponding path program 1 times [2024-11-16 04:10:33,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:33,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688834703] [2024-11-16 04:10:33,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:33,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-16 04:10:33,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:33,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688834703] [2024-11-16 04:10:33,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688834703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:33,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:33,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:33,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139050188] [2024-11-16 04:10:33,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:33,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:33,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:33,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:33,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:33,556 INFO L87 Difference]: Start difference. First operand 5497 states and 6414 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:34,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:34,736 INFO L93 Difference]: Finished difference Result 11892 states and 14192 transitions. [2024-11-16 04:10:34,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:34,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 357 [2024-11-16 04:10:34,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:34,756 INFO L225 Difference]: With dead ends: 11892 [2024-11-16 04:10:34,756 INFO L226 Difference]: Without dead ends: 6697 [2024-11-16 04:10:34,762 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 [2024-11-16 04:10:34,764 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 249 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:34,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 328 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:10:34,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6697 states. [2024-11-16 04:10:34,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6697 to 4893. [2024-11-16 04:10:34,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4893 states, 4892 states have (on average 1.1798855273916597) internal successors, (5772), 4892 states have internal predecessors, (5772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4893 states to 4893 states and 5772 transitions. [2024-11-16 04:10:34,826 INFO L78 Accepts]: Start accepts. Automaton has 4893 states and 5772 transitions. Word has length 357 [2024-11-16 04:10:34,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:34,827 INFO L471 AbstractCegarLoop]: Abstraction has 4893 states and 5772 transitions. [2024-11-16 04:10:34,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:34,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4893 states and 5772 transitions. [2024-11-16 04:10:34,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-16 04:10:34,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:34,834 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:34,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:10:34,834 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:34,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:34,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1692952479, now seen corresponding path program 1 times [2024-11-16 04:10:34,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:34,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659731939] [2024-11-16 04:10:34,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:34,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:35,107 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 04:10:35,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:35,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659731939] [2024-11-16 04:10:35,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659731939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:35,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:35,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:35,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033962814] [2024-11-16 04:10:35,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:35,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:35,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:35,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:35,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:35,110 INFO L87 Difference]: Start difference. First operand 4893 states and 5772 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:36,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:36,452 INFO L93 Difference]: Finished difference Result 11893 states and 14285 transitions. [2024-11-16 04:10:36,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:36,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 416 [2024-11-16 04:10:36,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:36,469 INFO L225 Difference]: With dead ends: 11893 [2024-11-16 04:10:36,469 INFO L226 Difference]: Without dead ends: 7302 [2024-11-16 04:10:36,473 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 [2024-11-16 04:10:36,474 INFO L432 NwaCegarLoop]: 602 mSDtfsCounter, 262 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:36,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 641 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:10:36,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2024-11-16 04:10:36,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 6402. [2024-11-16 04:10:36,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6402 states, 6401 states have (on average 1.1552882362130916) internal successors, (7395), 6401 states have internal predecessors, (7395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:36,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6402 states to 6402 states and 7395 transitions. [2024-11-16 04:10:36,538 INFO L78 Accepts]: Start accepts. Automaton has 6402 states and 7395 transitions. Word has length 416 [2024-11-16 04:10:36,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:36,539 INFO L471 AbstractCegarLoop]: Abstraction has 6402 states and 7395 transitions. [2024-11-16 04:10:36,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:36,539 INFO L276 IsEmpty]: Start isEmpty. Operand 6402 states and 7395 transitions. [2024-11-16 04:10:36,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-11-16 04:10:36,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:36,544 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:36,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:10:36,544 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:36,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:36,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1654389339, now seen corresponding path program 1 times [2024-11-16 04:10:36,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:36,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598946969] [2024-11-16 04:10:36,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:36,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:10:36,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:36,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598946969] [2024-11-16 04:10:36,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598946969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:36,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:36,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:36,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225117043] [2024-11-16 04:10:36,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:36,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:36,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:36,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:36,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:36,739 INFO L87 Difference]: Start difference. First operand 6402 states and 7395 transitions. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:37,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:37,952 INFO L93 Difference]: Finished difference Result 14613 states and 17202 transitions. [2024-11-16 04:10:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:37,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 422 [2024-11-16 04:10:37,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:37,963 INFO L225 Difference]: With dead ends: 14613 [2024-11-16 04:10:37,963 INFO L226 Difference]: Without dead ends: 8513 [2024-11-16 04:10:37,967 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 [2024-11-16 04:10:37,968 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 251 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:37,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 606 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:10:37,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8513 states. [2024-11-16 04:10:38,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8513 to 8210. [2024-11-16 04:10:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8210 states, 8209 states have (on average 1.1350956267511267) internal successors, (9318), 8209 states have internal predecessors, (9318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:38,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8210 states to 8210 states and 9318 transitions. [2024-11-16 04:10:38,066 INFO L78 Accepts]: Start accepts. Automaton has 8210 states and 9318 transitions. Word has length 422 [2024-11-16 04:10:38,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:38,067 INFO L471 AbstractCegarLoop]: Abstraction has 8210 states and 9318 transitions. [2024-11-16 04:10:38,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8210 states and 9318 transitions. [2024-11-16 04:10:38,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2024-11-16 04:10:38,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:38,071 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:38,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:10:38,071 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:38,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:38,072 INFO L85 PathProgramCache]: Analyzing trace with hash -695048884, now seen corresponding path program 1 times [2024-11-16 04:10:38,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:38,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759733195] [2024-11-16 04:10:38,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:38,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:38,254 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-16 04:10:38,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:38,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759733195] [2024-11-16 04:10:38,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759733195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:38,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:38,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:38,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711832848] [2024-11-16 04:10:38,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:38,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:38,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:38,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:38,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:38,256 INFO L87 Difference]: Start difference. First operand 8210 states and 9318 transitions. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:39,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:39,289 INFO L93 Difference]: Finished difference Result 17918 states and 20711 transitions. [2024-11-16 04:10:39,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:39,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 439 [2024-11-16 04:10:39,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:39,315 INFO L225 Difference]: With dead ends: 17918 [2024-11-16 04:10:39,319 INFO L226 Difference]: Without dead ends: 10010 [2024-11-16 04:10:39,334 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 [2024-11-16 04:10:39,335 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 245 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:39,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 624 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:10:39,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10010 states. [2024-11-16 04:10:39,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10010 to 9706. [2024-11-16 04:10:39,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9706 states, 9705 states have (on average 1.1263266357547657) internal successors, (10931), 9705 states have internal predecessors, (10931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:39,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9706 states to 9706 states and 10931 transitions. [2024-11-16 04:10:39,548 INFO L78 Accepts]: Start accepts. Automaton has 9706 states and 10931 transitions. Word has length 439 [2024-11-16 04:10:39,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:39,548 INFO L471 AbstractCegarLoop]: Abstraction has 9706 states and 10931 transitions. [2024-11-16 04:10:39,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:39,548 INFO L276 IsEmpty]: Start isEmpty. Operand 9706 states and 10931 transitions. [2024-11-16 04:10:39,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-11-16 04:10:39,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:39,552 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:39,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:10:39,553 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:39,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:39,554 INFO L85 PathProgramCache]: Analyzing trace with hash 761880136, now seen corresponding path program 1 times [2024-11-16 04:10:39,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:39,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676119723] [2024-11-16 04:10:39,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:39,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-11-16 04:10:39,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:39,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676119723] [2024-11-16 04:10:39,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676119723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:39,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:39,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:39,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073377256] [2024-11-16 04:10:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:39,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:39,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:39,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:39,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:39,724 INFO L87 Difference]: Start difference. First operand 9706 states and 10931 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:40,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:40,771 INFO L93 Difference]: Finished difference Result 21509 states and 24519 transitions. [2024-11-16 04:10:40,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:40,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 535 [2024-11-16 04:10:40,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:40,785 INFO L225 Difference]: With dead ends: 21509 [2024-11-16 04:10:40,785 INFO L226 Difference]: Without dead ends: 12105 [2024-11-16 04:10:40,792 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 [2024-11-16 04:10:40,792 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 349 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:40,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 451 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:10:40,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12105 states. [2024-11-16 04:10:40,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12105 to 12105. [2024-11-16 04:10:40,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12105 states, 12104 states have (on average 1.131692002643754) internal successors, (13698), 12104 states have internal predecessors, (13698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:40,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12105 states to 12105 states and 13698 transitions. [2024-11-16 04:10:40,888 INFO L78 Accepts]: Start accepts. Automaton has 12105 states and 13698 transitions. Word has length 535 [2024-11-16 04:10:40,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:40,889 INFO L471 AbstractCegarLoop]: Abstraction has 12105 states and 13698 transitions. [2024-11-16 04:10:40,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:40,889 INFO L276 IsEmpty]: Start isEmpty. Operand 12105 states and 13698 transitions. [2024-11-16 04:10:40,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2024-11-16 04:10:40,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:40,894 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:40,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:10:40,894 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:40,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:40,895 INFO L85 PathProgramCache]: Analyzing trace with hash 648617648, now seen corresponding path program 1 times [2024-11-16 04:10:40,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:40,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629571292] [2024-11-16 04:10:40,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:40,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-16 04:10:41,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:41,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629571292] [2024-11-16 04:10:41,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629571292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:41,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:41,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:41,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955134341] [2024-11-16 04:10:41,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:41,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:41,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:41,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:41,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:41,281 INFO L87 Difference]: Start difference. First operand 12105 states and 13698 transitions. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:42,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:42,665 INFO L93 Difference]: Finished difference Result 29322 states and 33489 transitions. [2024-11-16 04:10:42,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:42,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 560 [2024-11-16 04:10:42,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:42,704 INFO L225 Difference]: With dead ends: 29322 [2024-11-16 04:10:42,704 INFO L226 Difference]: Without dead ends: 17519 [2024-11-16 04:10:42,730 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 [2024-11-16 04:10:42,731 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 247 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:42,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 629 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:10:42,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17519 states. [2024-11-16 04:10:42,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17519 to 16608. [2024-11-16 04:10:42,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16608 states, 16607 states have (on average 1.1237429999397843) internal successors, (18662), 16607 states have internal predecessors, (18662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:42,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16608 states to 16608 states and 18662 transitions. [2024-11-16 04:10:42,948 INFO L78 Accepts]: Start accepts. Automaton has 16608 states and 18662 transitions. Word has length 560 [2024-11-16 04:10:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:42,949 INFO L471 AbstractCegarLoop]: Abstraction has 16608 states and 18662 transitions. [2024-11-16 04:10:42,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 16608 states and 18662 transitions. [2024-11-16 04:10:42,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-11-16 04:10:42,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:42,959 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:42,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:10:42,959 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:42,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:42,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1534053720, now seen corresponding path program 1 times [2024-11-16 04:10:42,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:42,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599803536] [2024-11-16 04:10:42,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:43,451 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 631 proven. 39 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-16 04:10:43,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:43,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599803536] [2024-11-16 04:10:43,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599803536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:10:43,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575275757] [2024-11-16 04:10:43,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:43,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:10:43,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:10:43,453 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) [2024-11-16 04:10:43,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:10:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:43,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 04:10:43,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:10:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 631 proven. 39 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-16 04:10:44,310 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:10:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 631 proven. 39 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-16 04:10:45,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575275757] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 04:10:45,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 04:10:45,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-16 04:10:45,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142208295] [2024-11-16 04:10:45,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 04:10:45,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 04:10:45,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:45,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 04:10:45,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:10:45,129 INFO L87 Difference]: Start difference. First operand 16608 states and 18662 transitions. Second operand has 9 states, 9 states have (on average 81.66666666666667) internal successors, (735), 8 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:50,365 INFO L93 Difference]: Finished difference Result 41578 states and 46459 transitions. [2024-11-16 04:10:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 04:10:50,366 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 81.66666666666667) internal successors, (735), 8 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 627 [2024-11-16 04:10:50,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:50,387 INFO L225 Difference]: With dead ends: 41578 [2024-11-16 04:10:50,387 INFO L226 Difference]: Without dead ends: 18407 [2024-11-16 04:10:50,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1263 GetRequests, 1249 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-16 04:10:50,404 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 2686 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 6990 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 7610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 6990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:50,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2686 Valid, 339 Invalid, 7610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 6990 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-16 04:10:50,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18407 states. [2024-11-16 04:10:50,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18407 to 13004. [2024-11-16 04:10:50,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13004 states, 13003 states have (on average 1.067061447358302) internal successors, (13875), 13003 states have internal predecessors, (13875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:50,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 13875 transitions. [2024-11-16 04:10:50,617 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 13875 transitions. Word has length 627 [2024-11-16 04:10:50,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:50,618 INFO L471 AbstractCegarLoop]: Abstraction has 13004 states and 13875 transitions. [2024-11-16 04:10:50,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.66666666666667) internal successors, (735), 8 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:50,618 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 13875 transitions. [2024-11-16 04:10:50,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2024-11-16 04:10:50,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:50,623 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:50,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:10:50,824 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,SelfDestructingSolverStorable12 [2024-11-16 04:10:50,825 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:50,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:50,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1289337803, now seen corresponding path program 1 times [2024-11-16 04:10:50,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:50,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696466834] [2024-11-16 04:10:50,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:50,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2024-11-16 04:10:51,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:51,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696466834] [2024-11-16 04:10:51,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696466834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:51,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:51,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:51,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242440103] [2024-11-16 04:10:51,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:51,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:51,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:51,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:51,061 INFO L87 Difference]: Start difference. First operand 13004 states and 13875 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:51,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:51,882 INFO L93 Difference]: Finished difference Result 26004 states and 27758 transitions. [2024-11-16 04:10:51,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:51,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 652 [2024-11-16 04:10:51,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:51,894 INFO L225 Difference]: With dead ends: 26004 [2024-11-16 04:10:51,894 INFO L226 Difference]: Without dead ends: 13302 [2024-11-16 04:10:51,900 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 [2024-11-16 04:10:51,900 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 439 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:51,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 72 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:10:51,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13302 states. [2024-11-16 04:10:51,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13302 to 13002. [2024-11-16 04:10:51,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13002 states, 13001 states have (on average 1.0669179293900468) internal successors, (13871), 13001 states have internal predecessors, (13871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13002 states to 13002 states and 13871 transitions. [2024-11-16 04:10:51,984 INFO L78 Accepts]: Start accepts. Automaton has 13002 states and 13871 transitions. Word has length 652 [2024-11-16 04:10:51,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:51,984 INFO L471 AbstractCegarLoop]: Abstraction has 13002 states and 13871 transitions. [2024-11-16 04:10:51,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:51,985 INFO L276 IsEmpty]: Start isEmpty. Operand 13002 states and 13871 transitions. [2024-11-16 04:10:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2024-11-16 04:10:51,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:51,991 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:51,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:10:51,991 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:51,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:51,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2073936332, now seen corresponding path program 1 times [2024-11-16 04:10:51,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:51,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080660757] [2024-11-16 04:10:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:51,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-16 04:10:52,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:52,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080660757] [2024-11-16 04:10:52,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080660757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:52,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:52,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:52,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248650648] [2024-11-16 04:10:52,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:52,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:52,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:52,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:52,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:52,692 INFO L87 Difference]: Start difference. First operand 13002 states and 13871 transitions. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:53,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:53,458 INFO L93 Difference]: Finished difference Result 26008 states and 27747 transitions. [2024-11-16 04:10:53,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:53,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 672 [2024-11-16 04:10:53,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:53,468 INFO L225 Difference]: With dead ends: 26008 [2024-11-16 04:10:53,468 INFO L226 Difference]: Without dead ends: 13008 [2024-11-16 04:10:53,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:53,475 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 309 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:53,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 142 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:10:53,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13008 states. [2024-11-16 04:10:53,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13008 to 12402. [2024-11-16 04:10:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12402 states, 12401 states have (on average 1.0536247076848642) internal successors, (13066), 12401 states have internal predecessors, (13066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:53,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12402 states to 12402 states and 13066 transitions. [2024-11-16 04:10:53,551 INFO L78 Accepts]: Start accepts. Automaton has 12402 states and 13066 transitions. Word has length 672 [2024-11-16 04:10:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:53,552 INFO L471 AbstractCegarLoop]: Abstraction has 12402 states and 13066 transitions. [2024-11-16 04:10:53,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 12402 states and 13066 transitions. [2024-11-16 04:10:53,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-16 04:10:53,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:53,558 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:53,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:10:53,558 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:53,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:53,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2041003206, now seen corresponding path program 1 times [2024-11-16 04:10:53,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:53,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312586730] [2024-11-16 04:10:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:53,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:53,995 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 550 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-16 04:10:53,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:53,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312586730] [2024-11-16 04:10:53,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312586730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:53,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:53,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:53,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349582432] [2024-11-16 04:10:53,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:53,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:53,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:53,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:53,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:53,997 INFO L87 Difference]: Start difference. First operand 12402 states and 13066 transitions. Second operand has 3 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:54,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:54,847 INFO L93 Difference]: Finished difference Result 28401 states and 30007 transitions. [2024-11-16 04:10:54,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:54,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 696 [2024-11-16 04:10:54,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:54,861 INFO L225 Difference]: With dead ends: 28401 [2024-11-16 04:10:54,862 INFO L226 Difference]: Without dead ends: 16001 [2024-11-16 04:10:54,870 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 [2024-11-16 04:10:54,870 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 86 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:54,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 518 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:10:54,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16001 states. [2024-11-16 04:10:54,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16001 to 16000. [2024-11-16 04:10:54,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16000 states, 15999 states have (on average 1.0482530158134884) internal successors, (16771), 15999 states have internal predecessors, (16771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:54,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16000 states to 16000 states and 16771 transitions. [2024-11-16 04:10:54,981 INFO L78 Accepts]: Start accepts. Automaton has 16000 states and 16771 transitions. Word has length 696 [2024-11-16 04:10:54,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:54,982 INFO L471 AbstractCegarLoop]: Abstraction has 16000 states and 16771 transitions. [2024-11-16 04:10:54,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand 16000 states and 16771 transitions. [2024-11-16 04:10:54,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-16 04:10:54,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:54,989 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:54,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 04:10:54,990 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:54,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:54,990 INFO L85 PathProgramCache]: Analyzing trace with hash -387047535, now seen corresponding path program 1 times [2024-11-16 04:10:54,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:54,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461828624] [2024-11-16 04:10:54,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:54,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 642 proven. 192 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-16 04:10:55,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:55,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461828624] [2024-11-16 04:10:55,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461828624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:10:55,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580329165] [2024-11-16 04:10:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:55,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:10:55,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:10:55,664 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) [2024-11-16 04:10:55,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 04:10:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:55,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:10:55,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:10:56,320 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2024-11-16 04:10:56,320 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:10:56,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580329165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:56,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:10:56,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 04:10:56,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844045663] [2024-11-16 04:10:56,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:56,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:56,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:56,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:56,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:10:56,322 INFO L87 Difference]: Start difference. First operand 16000 states and 16771 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:57,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:57,355 INFO L93 Difference]: Finished difference Result 36523 states and 38366 transitions. [2024-11-16 04:10:57,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:57,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 704 [2024-11-16 04:10:57,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:57,371 INFO L225 Difference]: With dead ends: 36523 [2024-11-16 04:10:57,372 INFO L226 Difference]: Without dead ends: 20525 [2024-11-16 04:10:57,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 703 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:10:57,381 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 274 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:57,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 493 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:10:57,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20525 states. [2024-11-16 04:10:57,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20525 to 19912. [2024-11-16 04:10:57,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19912 states, 19911 states have (on average 1.0490181306815327) internal successors, (20887), 19911 states have internal predecessors, (20887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:57,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19912 states to 19912 states and 20887 transitions. [2024-11-16 04:10:57,534 INFO L78 Accepts]: Start accepts. Automaton has 19912 states and 20887 transitions. Word has length 704 [2024-11-16 04:10:57,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:57,535 INFO L471 AbstractCegarLoop]: Abstraction has 19912 states and 20887 transitions. [2024-11-16 04:10:57,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:57,535 INFO L276 IsEmpty]: Start isEmpty. Operand 19912 states and 20887 transitions. [2024-11-16 04:10:57,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 894 [2024-11-16 04:10:57,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:57,557 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:57,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 04:10:57,759 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,SelfDestructingSolverStorable16 [2024-11-16 04:10:57,760 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:57,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:57,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1355606407, now seen corresponding path program 1 times [2024-11-16 04:10:57,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:57,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647706556] [2024-11-16 04:10:57,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:57,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:10:58,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1455 backedges. 875 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-11-16 04:10:58,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:10:58,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647706556] [2024-11-16 04:10:58,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647706556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:10:58,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:10:58,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:10:58,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014838651] [2024-11-16 04:10:58,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:10:58,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:10:58,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:10:58,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:10:58,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:58,503 INFO L87 Difference]: Start difference. First operand 19912 states and 20887 transitions. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:59,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:10:59,319 INFO L93 Difference]: Finished difference Result 39528 states and 41478 transitions. [2024-11-16 04:10:59,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:10:59,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 893 [2024-11-16 04:10:59,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:10:59,349 INFO L225 Difference]: With dead ends: 39528 [2024-11-16 04:10:59,350 INFO L226 Difference]: Without dead ends: 19918 [2024-11-16 04:10:59,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:10:59,364 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 130 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:10:59,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 119 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:10:59,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19918 states. [2024-11-16 04:10:59,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19918 to 19912. [2024-11-16 04:10:59,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19912 states, 19911 states have (on average 1.045552709557531) internal successors, (20818), 19911 states have internal predecessors, (20818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:59,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19912 states to 19912 states and 20818 transitions. [2024-11-16 04:10:59,729 INFO L78 Accepts]: Start accepts. Automaton has 19912 states and 20818 transitions. Word has length 893 [2024-11-16 04:10:59,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:10:59,729 INFO L471 AbstractCegarLoop]: Abstraction has 19912 states and 20818 transitions. [2024-11-16 04:10:59,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:10:59,729 INFO L276 IsEmpty]: Start isEmpty. Operand 19912 states and 20818 transitions. [2024-11-16 04:10:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2024-11-16 04:10:59,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:10:59,766 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:10:59,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 04:10:59,767 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:10:59,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:10:59,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1397086307, now seen corresponding path program 1 times [2024-11-16 04:10:59,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:10:59,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534628507] [2024-11-16 04:10:59,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:10:59,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:10:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:01,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 792 proven. 394 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-11-16 04:11:01,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:01,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534628507] [2024-11-16 04:11:01,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534628507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:11:01,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688436260] [2024-11-16 04:11:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:01,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:01,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:11:01,037 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:11:01,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 04:11:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:01,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:11:01,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:11:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 895 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-11-16 04:11:01,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:11:01,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688436260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:01,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:11:01,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 04:11:01,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589919373] [2024-11-16 04:11:01,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:01,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:01,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:01,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:01,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:11:01,654 INFO L87 Difference]: Start difference. First operand 19912 states and 20818 transitions. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:02,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:02,490 INFO L93 Difference]: Finished difference Result 43420 states and 45479 transitions. [2024-11-16 04:11:02,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:02,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 913 [2024-11-16 04:11:02,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:02,520 INFO L225 Difference]: With dead ends: 43420 [2024-11-16 04:11:02,521 INFO L226 Difference]: Without dead ends: 23810 [2024-11-16 04:11:02,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 914 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:11:02,534 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 72 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:02,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 168 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:11:02,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23810 states. [2024-11-16 04:11:02,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23810 to 22610. [2024-11-16 04:11:02,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22610 states, 22609 states have (on average 1.0422398160024768) internal successors, (23564), 22609 states have internal predecessors, (23564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22610 states to 22610 states and 23564 transitions. [2024-11-16 04:11:02,717 INFO L78 Accepts]: Start accepts. Automaton has 22610 states and 23564 transitions. Word has length 913 [2024-11-16 04:11:02,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:02,717 INFO L471 AbstractCegarLoop]: Abstraction has 22610 states and 23564 transitions. [2024-11-16 04:11:02,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:02,718 INFO L276 IsEmpty]: Start isEmpty. Operand 22610 states and 23564 transitions. [2024-11-16 04:11:02,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 916 [2024-11-16 04:11:02,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:02,731 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:02,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 04:11:02,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:02,932 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:02,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:02,933 INFO L85 PathProgramCache]: Analyzing trace with hash -152024120, now seen corresponding path program 1 times [2024-11-16 04:11:02,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:02,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974499241] [2024-11-16 04:11:02,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:02,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1479 backedges. 897 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-11-16 04:11:03,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:03,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974499241] [2024-11-16 04:11:03,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974499241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:03,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:03,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:03,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398751859] [2024-11-16 04:11:03,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:03,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:03,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:03,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:03,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:03,400 INFO L87 Difference]: Start difference. First operand 22610 states and 23564 transitions. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:04,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:04,363 INFO L93 Difference]: Finished difference Result 51518 states and 53713 transitions. [2024-11-16 04:11:04,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:04,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 915 [2024-11-16 04:11:04,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:04,395 INFO L225 Difference]: With dead ends: 51518 [2024-11-16 04:11:04,398 INFO L226 Difference]: Without dead ends: 29210 [2024-11-16 04:11:04,417 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 [2024-11-16 04:11:04,418 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 92 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:04,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 142 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:11:04,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29210 states. [2024-11-16 04:11:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29210 to 27410. [2024-11-16 04:11:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27410 states, 27409 states have (on average 1.0379802254733848) internal successors, (28450), 27409 states have internal predecessors, (28450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:04,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27410 states to 27410 states and 28450 transitions. [2024-11-16 04:11:04,750 INFO L78 Accepts]: Start accepts. Automaton has 27410 states and 28450 transitions. Word has length 915 [2024-11-16 04:11:04,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:04,750 INFO L471 AbstractCegarLoop]: Abstraction has 27410 states and 28450 transitions. [2024-11-16 04:11:04,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:04,750 INFO L276 IsEmpty]: Start isEmpty. Operand 27410 states and 28450 transitions. [2024-11-16 04:11:04,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2024-11-16 04:11:04,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:04,765 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:04,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 04:11:04,766 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:04,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:04,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1460497280, now seen corresponding path program 1 times [2024-11-16 04:11:04,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:04,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680729785] [2024-11-16 04:11:04,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:04,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:05,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1353 backedges. 822 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2024-11-16 04:11:05,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:05,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680729785] [2024-11-16 04:11:05,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680729785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:05,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:05,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:05,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407593853] [2024-11-16 04:11:05,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:05,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:05,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:05,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:05,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:05,140 INFO L87 Difference]: Start difference. First operand 27410 states and 28450 transitions. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:05,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:05,935 INFO L93 Difference]: Finished difference Result 55113 states and 57198 transitions. [2024-11-16 04:11:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:05,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 970 [2024-11-16 04:11:05,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:06,045 INFO L225 Difference]: With dead ends: 55113 [2024-11-16 04:11:06,046 INFO L226 Difference]: Without dead ends: 27705 [2024-11-16 04:11:06,053 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 [2024-11-16 04:11:06,054 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 310 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:06,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 521 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:11:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27705 states. [2024-11-16 04:11:06,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27705 to 24703. [2024-11-16 04:11:06,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24703 states, 24702 states have (on average 1.0374463606185733) internal successors, (25627), 24702 states have internal predecessors, (25627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:06,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24703 states to 24703 states and 25627 transitions. [2024-11-16 04:11:06,228 INFO L78 Accepts]: Start accepts. Automaton has 24703 states and 25627 transitions. Word has length 970 [2024-11-16 04:11:06,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:06,228 INFO L471 AbstractCegarLoop]: Abstraction has 24703 states and 25627 transitions. [2024-11-16 04:11:06,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:06,228 INFO L276 IsEmpty]: Start isEmpty. Operand 24703 states and 25627 transitions. [2024-11-16 04:11:06,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2024-11-16 04:11:06,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:06,249 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:06,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 04:11:06,250 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:06,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:06,250 INFO L85 PathProgramCache]: Analyzing trace with hash 560103112, now seen corresponding path program 1 times [2024-11-16 04:11:06,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:06,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934370835] [2024-11-16 04:11:06,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:06,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 923 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2024-11-16 04:11:07,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:07,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934370835] [2024-11-16 04:11:07,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934370835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:07,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:07,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:11:07,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627731464] [2024-11-16 04:11:07,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:07,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:11:07,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:07,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:11:07,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:11:07,006 INFO L87 Difference]: Start difference. First operand 24703 states and 25627 transitions. Second operand has 4 states, 4 states have (on average 152.75) internal successors, (611), 4 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:08,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:08,342 INFO L93 Difference]: Finished difference Result 57529 states and 59686 transitions. [2024-11-16 04:11:08,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:11:08,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.75) internal successors, (611), 4 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1004 [2024-11-16 04:11:08,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:08,369 INFO L225 Difference]: With dead ends: 57529 [2024-11-16 04:11:08,369 INFO L226 Difference]: Without dead ends: 33128 [2024-11-16 04:11:08,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:11:08,384 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 361 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:08,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 145 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:11:08,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33128 states. [2024-11-16 04:11:08,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33128 to 25909. [2024-11-16 04:11:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25909 states, 25908 states have (on average 1.0390226956924502) internal successors, (26919), 25908 states have internal predecessors, (26919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:08,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25909 states to 25909 states and 26919 transitions. [2024-11-16 04:11:08,600 INFO L78 Accepts]: Start accepts. Automaton has 25909 states and 26919 transitions. Word has length 1004 [2024-11-16 04:11:08,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:08,601 INFO L471 AbstractCegarLoop]: Abstraction has 25909 states and 26919 transitions. [2024-11-16 04:11:08,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.75) internal successors, (611), 4 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:08,601 INFO L276 IsEmpty]: Start isEmpty. Operand 25909 states and 26919 transitions. [2024-11-16 04:11:08,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2024-11-16 04:11:08,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:08,614 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:08,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 04:11:08,615 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:08,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:08,615 INFO L85 PathProgramCache]: Analyzing trace with hash 366921098, now seen corresponding path program 1 times [2024-11-16 04:11:08,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:08,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444671287] [2024-11-16 04:11:08,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:08,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:09,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1604 backedges. 259 proven. 709 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2024-11-16 04:11:09,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:09,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444671287] [2024-11-16 04:11:09,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444671287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:11:09,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708259050] [2024-11-16 04:11:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:09,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:09,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:11:09,284 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:11:09,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 04:11:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:09,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 04:11:09,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:11:13,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1604 backedges. 259 proven. 709 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2024-11-16 04:11:13,712 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:11:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1604 backedges. 259 proven. 709 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2024-11-16 04:11:14,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708259050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 04:11:14,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 04:11:14,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-16 04:11:14,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338741017] [2024-11-16 04:11:14,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 04:11:14,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 04:11:14,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:14,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 04:11:14,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-11-16 04:11:14,910 INFO L87 Difference]: Start difference. First operand 25909 states and 26919 transitions. Second operand has 10 states, 10 states have (on average 155.5) internal successors, (1555), 9 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:17,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:17,733 INFO L93 Difference]: Finished difference Result 69876 states and 72591 transitions. [2024-11-16 04:11:17,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 04:11:17,734 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 155.5) internal successors, (1555), 9 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1049 [2024-11-16 04:11:17,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:17,776 INFO L225 Difference]: With dead ends: 69876 [2024-11-16 04:11:17,776 INFO L226 Difference]: Without dead ends: 44269 [2024-11-16 04:11:17,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2100 GetRequests, 2092 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-11-16 04:11:17,796 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 1455 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 3088 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 3088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:17,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 220 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 3088 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 04:11:17,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44269 states. [2024-11-16 04:11:18,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44269 to 24403. [2024-11-16 04:11:18,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24403 states, 24402 states have (on average 1.0371690845012704) internal successors, (25309), 24402 states have internal predecessors, (25309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:18,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24403 states to 24403 states and 25309 transitions. [2024-11-16 04:11:18,078 INFO L78 Accepts]: Start accepts. Automaton has 24403 states and 25309 transitions. Word has length 1049 [2024-11-16 04:11:18,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:18,078 INFO L471 AbstractCegarLoop]: Abstraction has 24403 states and 25309 transitions. [2024-11-16 04:11:18,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 155.5) internal successors, (1555), 9 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:18,079 INFO L276 IsEmpty]: Start isEmpty. Operand 24403 states and 25309 transitions. [2024-11-16 04:11:18,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1418 [2024-11-16 04:11:18,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:18,096 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:18,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 04:11:18,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:18,297 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:18,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:18,297 INFO L85 PathProgramCache]: Analyzing trace with hash -430627004, now seen corresponding path program 1 times [2024-11-16 04:11:18,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:18,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402649234] [2024-11-16 04:11:18,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:18,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4013 backedges. 2709 proven. 0 refuted. 0 times theorem prover too weak. 1304 trivial. 0 not checked. [2024-11-16 04:11:20,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:20,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402649234] [2024-11-16 04:11:20,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402649234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:20,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:20,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:20,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4958410] [2024-11-16 04:11:20,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:20,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:20,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:20,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:20,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:20,026 INFO L87 Difference]: Start difference. First operand 24403 states and 25309 transitions. Second operand has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:20,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:20,731 INFO L93 Difference]: Finished difference Result 37350 states and 38668 transitions. [2024-11-16 04:11:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:20,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1417 [2024-11-16 04:11:20,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:20,733 INFO L225 Difference]: With dead ends: 37350 [2024-11-16 04:11:20,733 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:11:20,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:20,745 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 154 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:20,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 65 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:11:20,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:11:20,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:11:20,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:20,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:11:20,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1417 [2024-11-16 04:11:20,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:20,747 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:11:20,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:20,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:11:20,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:11:20,749 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:11:20,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 04:11:20,752 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:20,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:11:24,595 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:11:24,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:11:24 BoogieIcfgContainer [2024-11-16 04:11:24,613 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:11:24,614 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:11:24,614 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:11:24,614 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:11:24,614 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:10:21" (3/4) ... [2024-11-16 04:11:24,617 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:11:24,635 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-16 04:11:24,636 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:11:24,638 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:11:24,639 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:11:24,817 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:11:24,817 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:11:24,817 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:11:24,818 INFO L158 Benchmark]: Toolchain (without parser) took 66499.50ms. Allocated memory was 172.0MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 94.3MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 115.6MB. Max. memory is 16.1GB. [2024-11-16 04:11:24,818 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:11:24,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 771.54ms. Allocated memory was 172.0MB in the beginning and 283.1MB in the end (delta: 111.1MB). Free memory was 94.0MB in the beginning and 180.1MB in the end (delta: -86.0MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-11-16 04:11:24,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 188.69ms. Allocated memory is still 283.1MB. Free memory was 180.1MB in the beginning and 141.3MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-16 04:11:24,819 INFO L158 Benchmark]: Boogie Preprocessor took 296.35ms. Allocated memory is still 283.1MB. Free memory was 141.3MB in the beginning and 221.6MB in the end (delta: -80.3MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. [2024-11-16 04:11:24,820 INFO L158 Benchmark]: IcfgBuilder took 2100.15ms. Allocated memory was 283.1MB in the beginning and 566.2MB in the end (delta: 283.1MB). Free memory was 221.6MB in the beginning and 363.0MB in the end (delta: -141.4MB). Peak memory consumption was 159.0MB. Max. memory is 16.1GB. [2024-11-16 04:11:24,821 INFO L158 Benchmark]: TraceAbstraction took 62934.40ms. Allocated memory was 566.2MB in the beginning and 2.4GB in the end (delta: 1.8GB). Free memory was 362.0MB in the beginning and 2.2GB in the end (delta: -1.9GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-16 04:11:24,821 INFO L158 Benchmark]: Witness Printer took 203.68ms. Allocated memory is still 2.4GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-16 04:11:24,822 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 771.54ms. Allocated memory was 172.0MB in the beginning and 283.1MB in the end (delta: 111.1MB). Free memory was 94.0MB in the beginning and 180.1MB in the end (delta: -86.0MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 188.69ms. Allocated memory is still 283.1MB. Free memory was 180.1MB in the beginning and 141.3MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 296.35ms. Allocated memory is still 283.1MB. Free memory was 141.3MB in the beginning and 221.6MB in the end (delta: -80.3MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. * IcfgBuilder took 2100.15ms. Allocated memory was 283.1MB in the beginning and 566.2MB in the end (delta: 283.1MB). Free memory was 221.6MB in the beginning and 363.0MB in the end (delta: -141.4MB). Peak memory consumption was 159.0MB. Max. memory is 16.1GB. * TraceAbstraction took 62934.40ms. Allocated memory was 566.2MB in the beginning and 2.4GB in the end (delta: 1.8GB). Free memory was 362.0MB in the beginning and 2.2GB in the end (delta: -1.9GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 203.68ms. Allocated memory is still 2.4GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 215]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 427 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.0s, OverallIterations: 24, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 34.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9674 SdHoareTripleChecker+Valid, 31.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9674 mSDsluCounter, 8391 SdHoareTripleChecker+Invalid, 26.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1257 mSDsCounter, 4739 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31237 IncrementalHoareTripleChecker+Invalid, 35976 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4739 mSolverCounterUnsat, 7134 mSDtfsCounter, 31237 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5057 GetRequests, 5004 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27410occurred in iteration=20, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 24 MinimizatonAttempts, 44585 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 17.4s InterpolantComputationTime, 17693 NumberOfCodeBlocks, 17693 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 19339 ConstructedInterpolants, 334 QuantifiedInterpolants, 67037 SizeOfPredicates, 6 NumberOfNonLiveVariables, 3875 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 30 InterpolantComputations, 22 PerfectInterpolantSequences, 24532/27362 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1776]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:11:24,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE