./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label02.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/Problem02_label02.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 85831c87ee726a5ebef35050faa06bdc8a4bd6c3085f34f2763b92257fb80baa --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:05:58,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:05:58,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:05:58,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:05:58,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:05:58,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:05:58,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:05:58,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:05:58,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:05:58,820 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:05:58,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:05:58,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:05:58,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:05:58,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:05:58,822 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:05:58,822 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:05:58,822 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:05:58,822 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:05:58,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:05:58,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:05:58,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:05:58,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:05:58,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:05:58,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:05:58,829 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:05:58,829 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:05:58,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:05:58,829 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:05:58,829 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:05:58,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:05:58,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:05:58,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:05:58,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:05:58,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:05:58,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:05:58,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:05:58,831 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:05:58,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:05:58,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:05:58,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:05:58,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:05:58,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:05:58,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85831c87ee726a5ebef35050faa06bdc8a4bd6c3085f34f2763b92257fb80baa [2024-11-16 03:05:59,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:05:59,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:05:59,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:05:59,044 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:05:59,045 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:05:59,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label02.c [2024-11-16 03:06:00,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:06:00,477 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:06:00,477 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label02.c [2024-11-16 03:06:00,492 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/892ddb02e/118e3ddc86f94ea7ba9db589f3dbae26/FLAG3aa07de1a [2024-11-16 03:06:00,831 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/892ddb02e/118e3ddc86f94ea7ba9db589f3dbae26 [2024-11-16 03:06:00,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:06:00,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:06:00,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:06:00,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:06:00,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:06:00,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:06:00" (1/1) ... [2024-11-16 03:06:00,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78633438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:00, skipping insertion in model container [2024-11-16 03:06:00,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:06:00" (1/1) ... [2024-11-16 03:06:00,878 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:06:01,134 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/Problem02_label02.c[15989,16002] [2024-11-16 03:06:01,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:06:01,168 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:06:01,242 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/Problem02_label02.c[15989,16002] [2024-11-16 03:06:01,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:06:01,289 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:06:01,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01 WrapperNode [2024-11-16 03:06:01,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:06:01,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:06:01,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:06:01,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:06:01,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,369 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2024-11-16 03:06:01,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:06:01,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:06:01,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:06:01,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:06:01,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,384 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,414 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 03:06:01,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,430 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:06:01,447 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:06:01,447 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:06:01,447 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:06:01,448 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (1/1) ... [2024-11-16 03:06:01,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:06:01,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:06:01,472 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 03:06:01,476 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 03:06:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:06:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:06:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:06:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:06:01,566 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:06:01,567 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:06:02,259 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-16 03:06:02,259 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:06:02,274 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:06:02,274 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:06:02,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:06:02 BoogieIcfgContainer [2024-11-16 03:06:02,275 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:06:02,276 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:06:02,276 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:06:02,279 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:06:02,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:06:00" (1/3) ... [2024-11-16 03:06:02,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a23174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:06:02, skipping insertion in model container [2024-11-16 03:06:02,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:06:01" (2/3) ... [2024-11-16 03:06:02,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a23174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:06:02, skipping insertion in model container [2024-11-16 03:06:02,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:06:02" (3/3) ... [2024-11-16 03:06:02,281 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label02.c [2024-11-16 03:06:02,292 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:06:02,293 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:06:02,349 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:06:02,354 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;@47567a58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:06:02,355 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:06:02,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 230 states, 228 states have (on average 1.6578947368421053) internal successors, (378), 229 states have internal predecessors, (378), 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 03:06:02,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 03:06:02,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:02,366 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, 1, 1, 1, 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 03:06:02,367 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:02,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:02,371 INFO L85 PathProgramCache]: Analyzing trace with hash 543070297, now seen corresponding path program 1 times [2024-11-16 03:06:02,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:02,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111708776] [2024-11-16 03:06:02,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:02,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:02,733 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 03:06:02,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:02,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111708776] [2024-11-16 03:06:02,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111708776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:02,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:02,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:06:02,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617974006] [2024-11-16 03:06:02,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:02,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:02,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:02,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:02,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:02,763 INFO L87 Difference]: Start difference. First operand has 230 states, 228 states have (on average 1.6578947368421053) internal successors, (378), 229 states have internal predecessors, (378), 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 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 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 03:06:03,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:03,381 INFO L93 Difference]: Finished difference Result 602 states and 1036 transitions. [2024-11-16 03:06:03,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:03,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 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 95 [2024-11-16 03:06:03,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:03,391 INFO L225 Difference]: With dead ends: 602 [2024-11-16 03:06:03,392 INFO L226 Difference]: Without dead ends: 308 [2024-11-16 03:06:03,394 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 03:06:03,397 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 151 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:03,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 93 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:06:03,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-16 03:06:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-11-16 03:06:03,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.521172638436482) internal successors, (467), 307 states have internal predecessors, (467), 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 03:06:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 467 transitions. [2024-11-16 03:06:03,440 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 467 transitions. Word has length 95 [2024-11-16 03:06:03,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:03,441 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 467 transitions. [2024-11-16 03:06:03,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 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 03:06:03,441 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 467 transitions. [2024-11-16 03:06:03,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 03:06:03,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:03,444 INFO L215 NwaCegarLoop]: trace histogram [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 03:06:03,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:06:03,445 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:03,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:03,445 INFO L85 PathProgramCache]: Analyzing trace with hash -889062034, now seen corresponding path program 1 times [2024-11-16 03:06:03,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:03,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314765559] [2024-11-16 03:06:03,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:03,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:06:03,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:03,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314765559] [2024-11-16 03:06:03,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314765559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:03,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:03,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:06:03,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374867674] [2024-11-16 03:06:03,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:03,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:03,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:03,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:03,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:03,563 INFO L87 Difference]: Start difference. First operand 308 states and 467 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 03:06:03,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:03,971 INFO L93 Difference]: Finished difference Result 908 states and 1382 transitions. [2024-11-16 03:06:03,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:03,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 107 [2024-11-16 03:06:03,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:03,974 INFO L225 Difference]: With dead ends: 908 [2024-11-16 03:06:03,974 INFO L226 Difference]: Without dead ends: 602 [2024-11-16 03:06:03,975 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 03:06:03,976 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 191 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:03,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 76 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:06:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-16 03:06:03,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 460. [2024-11-16 03:06:03,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.485838779956427) internal successors, (682), 459 states have internal predecessors, (682), 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 03:06:03,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 682 transitions. [2024-11-16 03:06:03,993 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 682 transitions. Word has length 107 [2024-11-16 03:06:03,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:03,994 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 682 transitions. [2024-11-16 03:06:03,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 03:06:03,994 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 682 transitions. [2024-11-16 03:06:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 03:06:03,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:03,998 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:06:03,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:06:03,998 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:03,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:03,999 INFO L85 PathProgramCache]: Analyzing trace with hash -701633219, now seen corresponding path program 1 times [2024-11-16 03:06:03,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:03,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524602481] [2024-11-16 03:06:03,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:03,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:06:04,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:04,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524602481] [2024-11-16 03:06:04,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524602481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:04,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:04,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:06:04,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648355079] [2024-11-16 03:06:04,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:04,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:04,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:04,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:04,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:04,121 INFO L87 Difference]: Start difference. First operand 460 states and 682 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 03:06:04,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:04,448 INFO L93 Difference]: Finished difference Result 1364 states and 2028 transitions. [2024-11-16 03:06:04,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:04,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 114 [2024-11-16 03:06:04,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:04,451 INFO L225 Difference]: With dead ends: 1364 [2024-11-16 03:06:04,451 INFO L226 Difference]: Without dead ends: 906 [2024-11-16 03:06:04,452 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 03:06:04,452 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 159 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:04,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 130 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:06:04,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-11-16 03:06:04,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 896. [2024-11-16 03:06:04,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 895 states have (on average 1.4357541899441342) internal successors, (1285), 895 states have internal predecessors, (1285), 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 03:06:04,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1285 transitions. [2024-11-16 03:06:04,474 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1285 transitions. Word has length 114 [2024-11-16 03:06:04,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:04,474 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1285 transitions. [2024-11-16 03:06:04,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 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 03:06:04,474 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1285 transitions. [2024-11-16 03:06:04,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 03:06:04,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:04,478 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:04,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:06:04,479 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:04,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:04,479 INFO L85 PathProgramCache]: Analyzing trace with hash -483580537, now seen corresponding path program 1 times [2024-11-16 03:06:04,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:04,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482844284] [2024-11-16 03:06:04,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:04,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:06:04,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:04,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482844284] [2024-11-16 03:06:04,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482844284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:04,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:04,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:06:04,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015093018] [2024-11-16 03:06:04,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:04,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:04,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:04,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:04,585 INFO L87 Difference]: Start difference. First operand 896 states and 1285 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 03:06:04,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:04,941 INFO L93 Difference]: Finished difference Result 2639 states and 3794 transitions. [2024-11-16 03:06:04,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:04,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 118 [2024-11-16 03:06:04,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:04,948 INFO L225 Difference]: With dead ends: 2639 [2024-11-16 03:06:04,948 INFO L226 Difference]: Without dead ends: 1745 [2024-11-16 03:06:04,951 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 03:06:04,953 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 178 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:04,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 79 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:06:04,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2024-11-16 03:06:04,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1745. [2024-11-16 03:06:04,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1744 states have (on average 1.3618119266055047) internal successors, (2375), 1744 states have internal predecessors, (2375), 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 03:06:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2375 transitions. [2024-11-16 03:06:04,982 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2375 transitions. Word has length 118 [2024-11-16 03:06:04,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:04,984 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2375 transitions. [2024-11-16 03:06:04,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 03:06:04,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2375 transitions. [2024-11-16 03:06:04,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 03:06:04,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:04,992 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:06:04,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:06:04,992 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:04,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:04,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1040806143, now seen corresponding path program 1 times [2024-11-16 03:06:04,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:04,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328506529] [2024-11-16 03:06:04,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:04,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:05,098 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:06:05,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:05,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328506529] [2024-11-16 03:06:05,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328506529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:05,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:05,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:06:05,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149423979] [2024-11-16 03:06:05,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:05,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:05,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:05,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:05,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:05,103 INFO L87 Difference]: Start difference. First operand 1745 states and 2375 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 03:06:05,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:05,480 INFO L93 Difference]: Finished difference Result 4757 states and 6439 transitions. [2024-11-16 03:06:05,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:05,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 119 [2024-11-16 03:06:05,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:05,488 INFO L225 Difference]: With dead ends: 4757 [2024-11-16 03:06:05,488 INFO L226 Difference]: Without dead ends: 3014 [2024-11-16 03:06:05,490 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 03:06:05,492 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 151 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:05,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 90 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:06:05,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3014 states. [2024-11-16 03:06:05,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3014 to 3014. [2024-11-16 03:06:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3014 states, 3013 states have (on average 1.2890806505144374) internal successors, (3884), 3013 states have internal predecessors, (3884), 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 03:06:05,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3014 states to 3014 states and 3884 transitions. [2024-11-16 03:06:05,549 INFO L78 Accepts]: Start accepts. Automaton has 3014 states and 3884 transitions. Word has length 119 [2024-11-16 03:06:05,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:05,550 INFO L471 AbstractCegarLoop]: Abstraction has 3014 states and 3884 transitions. [2024-11-16 03:06:05,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 03:06:05,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3014 states and 3884 transitions. [2024-11-16 03:06:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 03:06:05,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:05,553 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:06:05,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:06:05,554 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:05,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:05,554 INFO L85 PathProgramCache]: Analyzing trace with hash 437824109, now seen corresponding path program 1 times [2024-11-16 03:06:05,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:05,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848073262] [2024-11-16 03:06:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:05,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:05,832 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:06:05,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:05,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848073262] [2024-11-16 03:06:05,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848073262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:06:05,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483132914] [2024-11-16 03:06:05,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:05,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:06:05,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:06:05,835 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 03:06:05,837 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 03:06:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:05,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:06:05,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:06:06,026 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 03:06:06,027 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:06:06,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483132914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:06,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:06:06,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:06:06,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346144394] [2024-11-16 03:06:06,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:06,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:06,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:06,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:06,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:06:06,028 INFO L87 Difference]: Start difference. First operand 3014 states and 3884 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 03:06:06,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:06,365 INFO L93 Difference]: Finished difference Result 6024 states and 7764 transitions. [2024-11-16 03:06:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:06,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 124 [2024-11-16 03:06:06,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:06,376 INFO L225 Difference]: With dead ends: 6024 [2024-11-16 03:06:06,377 INFO L226 Difference]: Without dead ends: 3012 [2024-11-16 03:06:06,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:06:06,381 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 70 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:06,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 251 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:06:06,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2024-11-16 03:06:06,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2871. [2024-11-16 03:06:06,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2871 states, 2870 states have (on average 1.197560975609756) internal successors, (3437), 2870 states have internal predecessors, (3437), 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 03:06:06,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 3437 transitions. [2024-11-16 03:06:06,417 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 3437 transitions. Word has length 124 [2024-11-16 03:06:06,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:06,417 INFO L471 AbstractCegarLoop]: Abstraction has 2871 states and 3437 transitions. [2024-11-16 03:06:06,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 03:06:06,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 3437 transitions. [2024-11-16 03:06:06,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-16 03:06:06,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:06,420 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:06,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 03:06:06,624 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,SelfDestructingSolverStorable5 [2024-11-16 03:06:06,625 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:06,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:06,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1219874389, now seen corresponding path program 1 times [2024-11-16 03:06:06,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:06,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929580639] [2024-11-16 03:06:06,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:06,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:06:06,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:06,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929580639] [2024-11-16 03:06:06,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929580639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:06,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:06,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:06:06,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943364789] [2024-11-16 03:06:06,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:06,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:06,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:06,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:06,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:06,725 INFO L87 Difference]: Start difference. First operand 2871 states and 3437 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 03:06:07,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:07,089 INFO L93 Difference]: Finished difference Result 6303 states and 7601 transitions. [2024-11-16 03:06:07,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:07,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 133 [2024-11-16 03:06:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:07,097 INFO L225 Difference]: With dead ends: 6303 [2024-11-16 03:06:07,097 INFO L226 Difference]: Without dead ends: 3434 [2024-11-16 03:06:07,100 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 03:06:07,101 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 151 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:07,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 75 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:06:07,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2024-11-16 03:06:07,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3433. [2024-11-16 03:06:07,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 3432 states have (on average 1.2033799533799534) internal successors, (4130), 3432 states have internal predecessors, (4130), 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 03:06:07,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 4130 transitions. [2024-11-16 03:06:07,144 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 4130 transitions. Word has length 133 [2024-11-16 03:06:07,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:07,144 INFO L471 AbstractCegarLoop]: Abstraction has 3433 states and 4130 transitions. [2024-11-16 03:06:07,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 03:06:07,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 4130 transitions. [2024-11-16 03:06:07,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-16 03:06:07,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:07,148 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:07,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:06:07,148 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:07,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:07,149 INFO L85 PathProgramCache]: Analyzing trace with hash 117095989, now seen corresponding path program 1 times [2024-11-16 03:06:07,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:07,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431269911] [2024-11-16 03:06:07,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:07,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:07,207 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:06:07,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:07,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431269911] [2024-11-16 03:06:07,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431269911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:07,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:07,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:06:07,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017222426] [2024-11-16 03:06:07,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:07,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:07,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:07,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:07,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:07,209 INFO L87 Difference]: Start difference. First operand 3433 states and 4130 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 03:06:07,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:07,569 INFO L93 Difference]: Finished difference Result 6722 states and 8065 transitions. [2024-11-16 03:06:07,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:07,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 137 [2024-11-16 03:06:07,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:07,576 INFO L225 Difference]: With dead ends: 6722 [2024-11-16 03:06:07,577 INFO L226 Difference]: Without dead ends: 3291 [2024-11-16 03:06:07,580 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 03:06:07,580 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 133 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:07,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 274 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:06:07,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3291 states. [2024-11-16 03:06:07,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3291 to 3142. [2024-11-16 03:06:07,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3141 states have (on average 1.1595033428844317) internal successors, (3642), 3141 states have internal predecessors, (3642), 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 03:06:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 3642 transitions. [2024-11-16 03:06:07,618 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 3642 transitions. Word has length 137 [2024-11-16 03:06:07,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:07,618 INFO L471 AbstractCegarLoop]: Abstraction has 3142 states and 3642 transitions. [2024-11-16 03:06:07,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 03:06:07,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 3642 transitions. [2024-11-16 03:06:07,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-16 03:06:07,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:07,623 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:07,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:06:07,623 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:07,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:07,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1361929251, now seen corresponding path program 1 times [2024-11-16 03:06:07,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:07,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849109169] [2024-11-16 03:06:07,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:07,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:07,705 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-16 03:06:07,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:07,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849109169] [2024-11-16 03:06:07,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849109169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:07,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:07,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:06:07,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333208308] [2024-11-16 03:06:07,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:07,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:07,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:07,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:07,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:07,710 INFO L87 Difference]: Start difference. First operand 3142 states and 3642 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 03:06:07,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:07,902 INFO L93 Difference]: Finished difference Result 5561 states and 6417 transitions. [2024-11-16 03:06:07,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:07,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 187 [2024-11-16 03:06:07,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:07,909 INFO L225 Difference]: With dead ends: 5561 [2024-11-16 03:06:07,909 INFO L226 Difference]: Without dead ends: 2421 [2024-11-16 03:06:07,912 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 03:06:07,913 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 184 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:07,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 20 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:06:07,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2024-11-16 03:06:07,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2024-11-16 03:06:07,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2420 states have (on average 1.1165289256198347) internal successors, (2702), 2420 states have internal predecessors, (2702), 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 03:06:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 2702 transitions. [2024-11-16 03:06:07,965 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 2702 transitions. Word has length 187 [2024-11-16 03:06:07,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:07,966 INFO L471 AbstractCegarLoop]: Abstraction has 2421 states and 2702 transitions. [2024-11-16 03:06:07,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 03:06:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 2702 transitions. [2024-11-16 03:06:07,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-16 03:06:07,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:07,971 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:07,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:06:07,971 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:07,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:07,972 INFO L85 PathProgramCache]: Analyzing trace with hash -356483079, now seen corresponding path program 1 times [2024-11-16 03:06:07,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:07,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973926494] [2024-11-16 03:06:07,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:07,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:08,090 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 03:06:08,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:08,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973926494] [2024-11-16 03:06:08,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973926494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:08,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:08,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:06:08,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589930320] [2024-11-16 03:06:08,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:08,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:08,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:08,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:08,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:08,092 INFO L87 Difference]: Start difference. First operand 2421 states and 2702 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 03:06:08,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:08,391 INFO L93 Difference]: Finished difference Result 3986 states and 4443 transitions. [2024-11-16 03:06:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:08,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 191 [2024-11-16 03:06:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:08,396 INFO L225 Difference]: With dead ends: 3986 [2024-11-16 03:06:08,396 INFO L226 Difference]: Without dead ends: 2137 [2024-11-16 03:06:08,398 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 03:06:08,398 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 81 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:08,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 231 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:06:08,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2024-11-16 03:06:08,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 2137. [2024-11-16 03:06:08,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2137 states, 2136 states have (on average 1.097378277153558) internal successors, (2344), 2136 states have internal predecessors, (2344), 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 03:06:08,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 2344 transitions. [2024-11-16 03:06:08,420 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 2344 transitions. Word has length 191 [2024-11-16 03:06:08,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:08,420 INFO L471 AbstractCegarLoop]: Abstraction has 2137 states and 2344 transitions. [2024-11-16 03:06:08,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 03:06:08,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 2344 transitions. [2024-11-16 03:06:08,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-16 03:06:08,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:08,425 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-16 03:06:08,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:06:08,425 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:08,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:08,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1621298174, now seen corresponding path program 1 times [2024-11-16 03:06:08,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:08,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989033153] [2024-11-16 03:06:08,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:08,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:08,505 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-16 03:06:08,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:08,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989033153] [2024-11-16 03:06:08,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989033153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:08,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:08,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:06:08,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569368163] [2024-11-16 03:06:08,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:08,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:08,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:08,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:08,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:08,507 INFO L87 Difference]: Start difference. First operand 2137 states and 2344 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 03:06:08,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:08,789 INFO L93 Difference]: Finished difference Result 2849 states and 3105 transitions. [2024-11-16 03:06:08,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:08,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 200 [2024-11-16 03:06:08,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:08,792 INFO L225 Difference]: With dead ends: 2849 [2024-11-16 03:06:08,792 INFO L226 Difference]: Without dead ends: 1141 [2024-11-16 03:06:08,794 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 03:06:08,794 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 114 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:08,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 219 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:06:08,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2024-11-16 03:06:08,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1141. [2024-11-16 03:06:08,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1140 states have (on average 1.0771929824561404) internal successors, (1228), 1140 states have internal predecessors, (1228), 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 03:06:08,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1228 transitions. [2024-11-16 03:06:08,805 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1228 transitions. Word has length 200 [2024-11-16 03:06:08,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:08,806 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1228 transitions. [2024-11-16 03:06:08,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 03:06:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1228 transitions. [2024-11-16 03:06:08,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 03:06:08,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:08,808 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:06:08,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:06:08,808 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:08,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:08,809 INFO L85 PathProgramCache]: Analyzing trace with hash -930808298, now seen corresponding path program 1 times [2024-11-16 03:06:08,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:08,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281292621] [2024-11-16 03:06:08,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:08,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:08,894 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-16 03:06:08,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:08,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281292621] [2024-11-16 03:06:08,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281292621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:08,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:08,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:06:08,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329737056] [2024-11-16 03:06:08,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:08,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:08,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:08,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:08,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:08,897 INFO L87 Difference]: Start difference. First operand 1141 states and 1228 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 03:06:09,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:09,156 INFO L93 Difference]: Finished difference Result 2280 states and 2454 transitions. [2024-11-16 03:06:09,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:09,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 205 [2024-11-16 03:06:09,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:09,159 INFO L225 Difference]: With dead ends: 2280 [2024-11-16 03:06:09,159 INFO L226 Difference]: Without dead ends: 1141 [2024-11-16 03:06:09,160 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 03:06:09,161 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 110 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:09,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 209 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:06:09,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2024-11-16 03:06:09,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1141. [2024-11-16 03:06:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1140 states have (on average 1.0657894736842106) internal successors, (1215), 1140 states have internal predecessors, (1215), 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 03:06:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1215 transitions. [2024-11-16 03:06:09,175 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1215 transitions. Word has length 205 [2024-11-16 03:06:09,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:09,175 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1215 transitions. [2024-11-16 03:06:09,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 03:06:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1215 transitions. [2024-11-16 03:06:09,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-16 03:06:09,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:06:09,178 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:06:09,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:06:09,178 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:06:09,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:06:09,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1339234824, now seen corresponding path program 1 times [2024-11-16 03:06:09,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:06:09,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854907726] [2024-11-16 03:06:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:06:09,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:06:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:06:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-16 03:06:09,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:06:09,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854907726] [2024-11-16 03:06:09,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854907726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:06:09,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:06:09,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:06:09,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178967538] [2024-11-16 03:06:09,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:06:09,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:06:09,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:06:09,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:06:09,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:06:09,284 INFO L87 Difference]: Start difference. First operand 1141 states and 1215 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 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 03:06:09,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:06:09,561 INFO L93 Difference]: Finished difference Result 2701 states and 2878 transitions. [2024-11-16 03:06:09,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:06:09,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 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 226 [2024-11-16 03:06:09,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:06:09,562 INFO L225 Difference]: With dead ends: 2701 [2024-11-16 03:06:09,562 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:06:09,563 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 03:06:09,564 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 123 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:06:09,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 189 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:06:09,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:06:09,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:06:09,565 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 03:06:09,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:06:09,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2024-11-16 03:06:09,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:06:09,565 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:06:09,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 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 03:06:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:06:09,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:06:09,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:06:09,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:06:09,570 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:06:09,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:06:09,829 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:06:09,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:06:09 BoogieIcfgContainer [2024-11-16 03:06:09,837 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:06:09,837 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:06:09,837 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:06:09,837 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:06:09,838 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:06:02" (3/4) ... [2024-11-16 03:06:09,840 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:06:09,850 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:06:09,851 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:06:09,851 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:06:09,852 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:06:09,947 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:06:09,947 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:06:09,948 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:06:09,948 INFO L158 Benchmark]: Toolchain (without parser) took 9114.25ms. Allocated memory was 172.0MB in the beginning and 283.1MB in the end (delta: 111.1MB). Free memory was 103.1MB in the beginning and 102.9MB in the end (delta: 171.1kB). Peak memory consumption was 113.1MB. Max. memory is 16.1GB. [2024-11-16 03:06:09,948 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:06:09,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.27ms. Allocated memory is still 172.0MB. Free memory was 102.8MB in the beginning and 142.8MB in the end (delta: -40.0MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-11-16 03:06:09,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.39ms. Allocated memory is still 172.0MB. Free memory was 142.8MB in the beginning and 137.4MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 03:06:09,949 INFO L158 Benchmark]: Boogie Preprocessor took 74.19ms. Allocated memory is still 172.0MB. Free memory was 136.5MB in the beginning and 132.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 03:06:09,949 INFO L158 Benchmark]: IcfgBuilder took 828.32ms. Allocated memory is still 172.0MB. Free memory was 132.3MB in the beginning and 133.6MB in the end (delta: -1.3MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2024-11-16 03:06:09,949 INFO L158 Benchmark]: TraceAbstraction took 7560.58ms. Allocated memory was 172.0MB in the beginning and 283.1MB in the end (delta: 111.1MB). Free memory was 132.6MB in the beginning and 115.5MB in the end (delta: 17.1MB). Peak memory consumption was 128.3MB. Max. memory is 16.1GB. [2024-11-16 03:06:09,949 INFO L158 Benchmark]: Witness Printer took 110.42ms. Allocated memory is still 283.1MB. Free memory was 115.5MB in the beginning and 102.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 03:06:09,950 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.27ms. Allocated memory is still 172.0MB. Free memory was 102.8MB in the beginning and 142.8MB in the end (delta: -40.0MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.39ms. Allocated memory is still 172.0MB. Free memory was 142.8MB in the beginning and 137.4MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.19ms. Allocated memory is still 172.0MB. Free memory was 136.5MB in the beginning and 132.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 828.32ms. Allocated memory is still 172.0MB. Free memory was 132.3MB in the beginning and 133.6MB in the end (delta: -1.3MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7560.58ms. Allocated memory was 172.0MB in the beginning and 283.1MB in the end (delta: 111.1MB). Free memory was 132.6MB in the beginning and 115.5MB in the end (delta: 17.1MB). Peak memory consumption was 128.3MB. Max. memory is 16.1GB. * Witness Printer took 110.42ms. Allocated memory is still 283.1MB. Free memory was 115.5MB in the beginning and 102.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 461]: 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, 230 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1796 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1796 mSDsluCounter, 1936 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 195 mSDsCounter, 779 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4454 IncrementalHoareTripleChecker+Invalid, 5233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 779 mSolverCounterUnsat, 1741 mSDtfsCounter, 4454 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3433occurred in iteration=7, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 443 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2080 NumberOfCodeBlocks, 2080 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2066 ConstructedInterpolants, 0 QuantifiedInterpolants, 4904 SizeOfPredicates, 0 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 995/1013 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: 616]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:06:09,972 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