./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/token_ring.08.cil-1.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 42e706fd1a5bd201d46dd2f3322f156b6d900789b8c9ace16cba5458f69fdc62 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:19:42,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:19:42,358 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:19:42,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:19:42,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:19:42,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:19:42,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:19:42,390 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:19:42,391 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:19:42,391 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:19:42,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:19:42,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:19:42,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:19:42,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:19:42,393 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:19:42,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:19:42,394 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:19:42,394 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:19:42,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:19:42,395 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:19:42,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:19:42,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:19:42,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:19:42,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:19:42,397 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:19:42,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:19:42,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:19:42,398 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:19:42,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:19:42,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:19:42,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:19:42,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:19:42,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:19:42,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:19:42,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:19:42,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:19:42,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:19:42,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:19:42,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:19:42,402 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:19:42,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:19:42,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:19:42,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42e706fd1a5bd201d46dd2f3322f156b6d900789b8c9ace16cba5458f69fdc62 [2024-11-22 02:19:42,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:19:42,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:19:42,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:19:42,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:19:42,714 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:19:42,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.08.cil-1.c [2024-11-22 02:19:44,139 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:19:44,380 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:19:44,381 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.08.cil-1.c [2024-11-22 02:19:44,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fa189f90/13e7e32ca15e4e8998068b0cd5688cbe/FLAG3da3f0ba3 [2024-11-22 02:19:44,728 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fa189f90/13e7e32ca15e4e8998068b0cd5688cbe [2024-11-22 02:19:44,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:19:44,732 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:19:44,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:19:44,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:19:44,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:19:44,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:19:44" (1/1) ... [2024-11-22 02:19:44,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4b5c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:44, skipping insertion in model container [2024-11-22 02:19:44,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:19:44" (1/1) ... [2024-11-22 02:19:44,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:19:44,983 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/systemc/token_ring.08.cil-1.c[671,684] [2024-11-22 02:19:45,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:19:45,172 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:19:45,185 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/systemc/token_ring.08.cil-1.c[671,684] [2024-11-22 02:19:45,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:19:45,295 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:19:45,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45 WrapperNode [2024-11-22 02:19:45,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:19:45,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:19:45,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:19:45,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:19:45,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,370 INFO L138 Inliner]: procedures = 44, calls = 55, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 639 [2024-11-22 02:19:45,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:19:45,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:19:45,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:19:45,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:19:45,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,421 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]. [2024-11-22 02:19:45,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:19:45,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:19:45,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:19:45,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:19:45,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (1/1) ... [2024-11-22 02:19:45,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:19:45,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:19:45,498 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) [2024-11-22 02:19:45,502 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 [2024-11-22 02:19:45,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:19:45,545 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 02:19:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 02:19:45,546 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 02:19:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 02:19:45,546 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 02:19:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 02:19:45,547 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 02:19:45,548 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 02:19:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 02:19:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 02:19:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:19:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 02:19:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 02:19:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:19:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:19:45,636 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:19:45,638 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:19:46,328 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-22 02:19:46,328 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:19:46,358 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:19:46,358 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-22 02:19:46,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:19:46 BoogieIcfgContainer [2024-11-22 02:19:46,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:19:46,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:19:46,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:19:46,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:19:46,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:19:44" (1/3) ... [2024-11-22 02:19:46,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d28f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:19:46, skipping insertion in model container [2024-11-22 02:19:46,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:19:45" (2/3) ... [2024-11-22 02:19:46,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d28f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:19:46, skipping insertion in model container [2024-11-22 02:19:46,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:19:46" (3/3) ... [2024-11-22 02:19:46,369 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.08.cil-1.c [2024-11-22 02:19:46,385 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:19:46,386 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:19:46,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:19:46,469 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;@3992e7b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:19:46,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:19:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 291 states, 261 states have (on average 1.6245210727969348) internal successors, (424), 263 states have internal predecessors, (424), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 02:19:46,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:19:46,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:46,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:46,495 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:46,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:46,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1809958066, now seen corresponding path program 1 times [2024-11-22 02:19:46,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:46,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622345234] [2024-11-22 02:19:46,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:46,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:47,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:47,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622345234] [2024-11-22 02:19:47,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622345234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:47,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:47,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:19:47,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651180434] [2024-11-22 02:19:47,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:47,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:19:47,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:47,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:19:47,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:19:47,119 INFO L87 Difference]: Start difference. First operand has 291 states, 261 states have (on average 1.6245210727969348) internal successors, (424), 263 states have internal predecessors, (424), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:47,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:47,210 INFO L93 Difference]: Finished difference Result 571 states and 919 transitions. [2024-11-22 02:19:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:19:47,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:19:47,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:47,226 INFO L225 Difference]: With dead ends: 571 [2024-11-22 02:19:47,227 INFO L226 Difference]: Without dead ends: 286 [2024-11-22 02:19:47,236 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 [2024-11-22 02:19:47,241 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 434 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:47,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 442 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:19:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-22 02:19:47,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-11-22 02:19:47,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 257 states have (on average 1.5369649805447472) internal successors, (395), 258 states have internal predecessors, (395), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 02:19:47,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 439 transitions. [2024-11-22 02:19:47,315 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 439 transitions. Word has length 133 [2024-11-22 02:19:47,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:47,318 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 439 transitions. [2024-11-22 02:19:47,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:47,319 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 439 transitions. [2024-11-22 02:19:47,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:19:47,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:47,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:47,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:19:47,327 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:47,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:47,331 INFO L85 PathProgramCache]: Analyzing trace with hash 240450832, now seen corresponding path program 1 times [2024-11-22 02:19:47,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:47,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259041469] [2024-11-22 02:19:47,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:47,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:47,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:47,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:47,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259041469] [2024-11-22 02:19:47,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259041469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:47,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:47,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:19:47,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522210983] [2024-11-22 02:19:47,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:47,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:19:47,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:47,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:19:47,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:19:47,681 INFO L87 Difference]: Start difference. First operand 286 states and 439 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:48,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:48,318 INFO L93 Difference]: Finished difference Result 858 states and 1331 transitions. [2024-11-22 02:19:48,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:19:48,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:19:48,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:48,328 INFO L225 Difference]: With dead ends: 858 [2024-11-22 02:19:48,329 INFO L226 Difference]: Without dead ends: 588 [2024-11-22 02:19:48,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:48,334 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 820 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:48,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 1316 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 02:19:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-22 02:19:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 567. [2024-11-22 02:19:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 514 states have (on average 1.54863813229572) internal successors, (796), 516 states have internal predecessors, (796), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2024-11-22 02:19:48,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 875 transitions. [2024-11-22 02:19:48,402 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 875 transitions. Word has length 133 [2024-11-22 02:19:48,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:48,403 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 875 transitions. [2024-11-22 02:19:48,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:48,405 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 875 transitions. [2024-11-22 02:19:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:19:48,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:48,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:48,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:19:48,409 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:48,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1466052716, now seen corresponding path program 1 times [2024-11-22 02:19:48,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:48,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516461607] [2024-11-22 02:19:48,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:48,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:48,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:48,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516461607] [2024-11-22 02:19:48,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516461607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:48,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:48,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:19:48,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549963616] [2024-11-22 02:19:48,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:48,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:19:48,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:48,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:19:48,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:48,641 INFO L87 Difference]: Start difference. First operand 567 states and 875 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:49,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:49,397 INFO L93 Difference]: Finished difference Result 1473 states and 2300 transitions. [2024-11-22 02:19:49,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:19:49,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:19:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:49,404 INFO L225 Difference]: With dead ends: 1473 [2024-11-22 02:19:49,405 INFO L226 Difference]: Without dead ends: 922 [2024-11-22 02:19:49,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:19:49,424 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 822 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:49,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 2333 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:19:49,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-22 02:19:49,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 829. [2024-11-22 02:19:49,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 752 states have (on average 1.5412234042553192) internal successors, (1159), 755 states have internal predecessors, (1159), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (60), 57 states have call predecessors, (60), 56 states have call successors, (60) [2024-11-22 02:19:49,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1275 transitions. [2024-11-22 02:19:49,471 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1275 transitions. Word has length 133 [2024-11-22 02:19:49,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:49,472 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1275 transitions. [2024-11-22 02:19:49,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:49,472 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1275 transitions. [2024-11-22 02:19:49,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:19:49,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:49,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:49,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:19:49,475 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:49,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:49,476 INFO L85 PathProgramCache]: Analyzing trace with hash 535833554, now seen corresponding path program 1 times [2024-11-22 02:19:49,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:49,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300892977] [2024-11-22 02:19:49,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:49,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:49,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:49,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300892977] [2024-11-22 02:19:49,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300892977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:49,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:49,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:19:49,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096784746] [2024-11-22 02:19:49,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:49,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:19:49,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:49,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:19:49,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:49,630 INFO L87 Difference]: Start difference. First operand 829 states and 1275 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:50,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:50,305 INFO L93 Difference]: Finished difference Result 2305 states and 3591 transitions. [2024-11-22 02:19:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:19:50,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:19:50,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:50,315 INFO L225 Difference]: With dead ends: 2305 [2024-11-22 02:19:50,316 INFO L226 Difference]: Without dead ends: 1492 [2024-11-22 02:19:50,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:19:50,323 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 841 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:50,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1626 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 02:19:50,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2024-11-22 02:19:50,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1386. [2024-11-22 02:19:50,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1259 states have (on average 1.5440826052422558) internal successors, (1944), 1266 states have internal predecessors, (1944), 90 states have call successors, (90), 30 states have call predecessors, (90), 36 states have return successors, (106), 93 states have call predecessors, (106), 90 states have call successors, (106) [2024-11-22 02:19:50,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 2140 transitions. [2024-11-22 02:19:50,405 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 2140 transitions. Word has length 133 [2024-11-22 02:19:50,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:50,406 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 2140 transitions. [2024-11-22 02:19:50,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:50,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 2140 transitions. [2024-11-22 02:19:50,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:19:50,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:50,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:50,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:19:50,410 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:50,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2031988780, now seen corresponding path program 1 times [2024-11-22 02:19:50,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:50,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512483924] [2024-11-22 02:19:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:50,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:50,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:50,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512483924] [2024-11-22 02:19:50,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512483924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:50,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:50,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:19:50,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6178224] [2024-11-22 02:19:50,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:50,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:19:50,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:50,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:19:50,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:50,562 INFO L87 Difference]: Start difference. First operand 1386 states and 2140 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:51,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:51,384 INFO L93 Difference]: Finished difference Result 4096 states and 6430 transitions. [2024-11-22 02:19:51,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:19:51,384 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:19:51,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:51,400 INFO L225 Difference]: With dead ends: 4096 [2024-11-22 02:19:51,401 INFO L226 Difference]: Without dead ends: 2726 [2024-11-22 02:19:51,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:19:51,407 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 812 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:51,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2305 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:19:51,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2024-11-22 02:19:51,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2593. [2024-11-22 02:19:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 2360 states have (on average 1.5593220338983051) internal successors, (3680), 2381 states have internal predecessors, (3680), 158 states have call successors, (158), 54 states have call predecessors, (158), 74 states have return successors, (222), 165 states have call predecessors, (222), 158 states have call successors, (222) [2024-11-22 02:19:51,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 4060 transitions. [2024-11-22 02:19:51,553 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 4060 transitions. Word has length 133 [2024-11-22 02:19:51,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:51,554 INFO L471 AbstractCegarLoop]: Abstraction has 2593 states and 4060 transitions. [2024-11-22 02:19:51,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:51,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 4060 transitions. [2024-11-22 02:19:51,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:19:51,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:51,558 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:51,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:19:51,558 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:51,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:51,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1560632430, now seen corresponding path program 1 times [2024-11-22 02:19:51,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:51,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339495103] [2024-11-22 02:19:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:51,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:51,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:51,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339495103] [2024-11-22 02:19:51,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339495103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:51,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:51,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:19:51,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395864129] [2024-11-22 02:19:51,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:51,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:19:51,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:51,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:19:51,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:51,708 INFO L87 Difference]: Start difference. First operand 2593 states and 4060 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:52,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:52,568 INFO L93 Difference]: Finished difference Result 8031 states and 12856 transitions. [2024-11-22 02:19:52,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:19:52,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:19:52,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:52,608 INFO L225 Difference]: With dead ends: 8031 [2024-11-22 02:19:52,608 INFO L226 Difference]: Without dead ends: 5454 [2024-11-22 02:19:52,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:19:52,622 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 807 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:52,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 2293 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:19:52,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5454 states. [2024-11-22 02:19:52,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5454 to 5268. [2024-11-22 02:19:52,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 4805 states have (on average 1.5850156087408949) internal successors, (7616), 4872 states have internal predecessors, (7616), 294 states have call successors, (294), 102 states have call predecessors, (294), 168 states have return successors, (550), 309 states have call predecessors, (550), 294 states have call successors, (550) [2024-11-22 02:19:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 8460 transitions. [2024-11-22 02:19:52,909 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 8460 transitions. Word has length 133 [2024-11-22 02:19:52,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:52,910 INFO L471 AbstractCegarLoop]: Abstraction has 5268 states and 8460 transitions. [2024-11-22 02:19:52,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:52,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 8460 transitions. [2024-11-22 02:19:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:19:52,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:52,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:52,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:19:52,916 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:52,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:52,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1086971924, now seen corresponding path program 1 times [2024-11-22 02:19:52,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:52,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118402781] [2024-11-22 02:19:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:52,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:53,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:53,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118402781] [2024-11-22 02:19:53,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118402781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:53,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:53,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:19:53,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296651110] [2024-11-22 02:19:53,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:53,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:19:53,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:53,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:19:53,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:53,084 INFO L87 Difference]: Start difference. First operand 5268 states and 8460 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:54,116 INFO L93 Difference]: Finished difference Result 16886 states and 27930 transitions. [2024-11-22 02:19:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:19:54,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:19:54,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:54,192 INFO L225 Difference]: With dead ends: 16886 [2024-11-22 02:19:54,192 INFO L226 Difference]: Without dead ends: 11634 [2024-11-22 02:19:54,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:19:54,218 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 802 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:54,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2281 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 02:19:54,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11634 states. [2024-11-22 02:19:54,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11634 to 11347. [2024-11-22 02:19:54,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11347 states, 10370 states have (on average 1.6177434908389585) internal successors, (16776), 10583 states have internal predecessors, (16776), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-11-22 02:19:54,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11347 states to 11347 states and 18932 transitions. [2024-11-22 02:19:54,878 INFO L78 Accepts]: Start accepts. Automaton has 11347 states and 18932 transitions. Word has length 133 [2024-11-22 02:19:54,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:54,880 INFO L471 AbstractCegarLoop]: Abstraction has 11347 states and 18932 transitions. [2024-11-22 02:19:54,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:54,880 INFO L276 IsEmpty]: Start isEmpty. Operand 11347 states and 18932 transitions. [2024-11-22 02:19:54,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:19:54,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:54,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:54,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:19:54,889 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:54,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:54,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1044378798, now seen corresponding path program 1 times [2024-11-22 02:19:54,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:54,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510898368] [2024-11-22 02:19:54,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:54,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:55,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:55,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:55,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510898368] [2024-11-22 02:19:55,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510898368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:55,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:55,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:19:55,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804794707] [2024-11-22 02:19:55,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:55,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:19:55,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:55,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:19:55,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:55,024 INFO L87 Difference]: Start difference. First operand 11347 states and 18932 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:56,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:56,508 INFO L93 Difference]: Finished difference Result 37337 states and 64808 transitions. [2024-11-22 02:19:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:19:56,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:19:56,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:56,745 INFO L225 Difference]: With dead ends: 37337 [2024-11-22 02:19:56,746 INFO L226 Difference]: Without dead ends: 26006 [2024-11-22 02:19:56,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:19:56,790 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 797 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:56,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 2269 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:19:56,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26006 states. [2024-11-22 02:19:57,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26006 to 25530. [2024-11-22 02:19:58,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25530 states, 23363 states have (on average 1.6540683987501605) internal successors, (38644), 24030 states have internal predecessors, (38644), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 1056 states have return successors, (5206), 1173 states have call predecessors, (5206), 1110 states have call successors, (5206) [2024-11-22 02:19:58,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25530 states to 25530 states and 44960 transitions. [2024-11-22 02:19:58,169 INFO L78 Accepts]: Start accepts. Automaton has 25530 states and 44960 transitions. Word has length 133 [2024-11-22 02:19:58,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:58,170 INFO L471 AbstractCegarLoop]: Abstraction has 25530 states and 44960 transitions. [2024-11-22 02:19:58,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:58,170 INFO L276 IsEmpty]: Start isEmpty. Operand 25530 states and 44960 transitions. [2024-11-22 02:19:58,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:19:58,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:58,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:58,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:19:58,185 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:58,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:58,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2082963372, now seen corresponding path program 1 times [2024-11-22 02:19:58,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:58,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351386409] [2024-11-22 02:19:58,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:58,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:58,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:58,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:58,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351386409] [2024-11-22 02:19:58,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351386409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:58,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:58,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:19:58,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092620013] [2024-11-22 02:19:58,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:58,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:19:58,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:58,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:19:58,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:58,316 INFO L87 Difference]: Start difference. First operand 25530 states and 44960 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:20:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:00,803 INFO L93 Difference]: Finished difference Result 85028 states and 157830 transitions. [2024-11-22 02:20:00,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:20:00,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:20:00,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:01,353 INFO L225 Difference]: With dead ends: 85028 [2024-11-22 02:20:01,353 INFO L226 Difference]: Without dead ends: 59514 [2024-11-22 02:20:01,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:20:01,451 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 789 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:01,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 2243 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 02:20:01,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59514 states. [2024-11-22 02:20:05,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59514 to 58756. [2024-11-22 02:20:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58756 states, 53723 states have (on average 1.6866146715559445) internal successors, (90610), 55784 states have internal predecessors, (90610), 2198 states have call successors, (2198), 774 states have call predecessors, (2198), 2834 states have return successors, (18582), 2325 states have call predecessors, (18582), 2198 states have call successors, (18582) [2024-11-22 02:20:06,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58756 states to 58756 states and 111390 transitions. [2024-11-22 02:20:06,037 INFO L78 Accepts]: Start accepts. Automaton has 58756 states and 111390 transitions. Word has length 133 [2024-11-22 02:20:06,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:06,038 INFO L471 AbstractCegarLoop]: Abstraction has 58756 states and 111390 transitions. [2024-11-22 02:20:06,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:20:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 58756 states and 111390 transitions. [2024-11-22 02:20:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:20:06,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:06,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:06,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:20:06,060 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:06,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash 70143446, now seen corresponding path program 1 times [2024-11-22 02:20:06,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:06,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014232664] [2024-11-22 02:20:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:06,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:06,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:06,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014232664] [2024-11-22 02:20:06,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014232664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:06,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:06,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:20:06,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871749253] [2024-11-22 02:20:06,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:06,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:20:06,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:06,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:20:06,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:20:06,202 INFO L87 Difference]: Start difference. First operand 58756 states and 111390 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:20:11,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:11,271 INFO L93 Difference]: Finished difference Result 206938 states and 418011 transitions. [2024-11-22 02:20:11,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:20:11,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:20:11,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:12,594 INFO L225 Difference]: With dead ends: 206938 [2024-11-22 02:20:12,595 INFO L226 Difference]: Without dead ends: 148198 [2024-11-22 02:20:12,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:20:12,789 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 1038 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:12,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 2218 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:20:12,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148198 states. [2024-11-22 02:20:20,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148198 to 138675. [2024-11-22 02:20:21,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138675 states, 126580 states have (on average 1.718675936166851) internal successors, (217550), 132887 states have internal predecessors, (217550), 4246 states have call successors, (4246), 1542 states have call predecessors, (4246), 7848 states have return successors, (69782), 4501 states have call predecessors, (69782), 4246 states have call successors, (69782) [2024-11-22 02:20:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138675 states to 138675 states and 291578 transitions. [2024-11-22 02:20:22,622 INFO L78 Accepts]: Start accepts. Automaton has 138675 states and 291578 transitions. Word has length 133 [2024-11-22 02:20:22,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:22,622 INFO L471 AbstractCegarLoop]: Abstraction has 138675 states and 291578 transitions. [2024-11-22 02:20:22,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:20:22,623 INFO L276 IsEmpty]: Start isEmpty. Operand 138675 states and 291578 transitions. [2024-11-22 02:20:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:20:22,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:22,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:22,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 02:20:22,675 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:22,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:22,677 INFO L85 PathProgramCache]: Analyzing trace with hash -553138156, now seen corresponding path program 1 times [2024-11-22 02:20:22,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:22,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624021813] [2024-11-22 02:20:22,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:22,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:22,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:22,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:22,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624021813] [2024-11-22 02:20:22,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624021813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:22,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:22,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:20:22,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699254985] [2024-11-22 02:20:22,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:22,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:20:22,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:22,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:20:22,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:22,793 INFO L87 Difference]: Start difference. First operand 138675 states and 291578 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:20:31,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:31,033 INFO L93 Difference]: Finished difference Result 336401 states and 747627 transitions. [2024-11-22 02:20:31,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:20:31,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-22 02:20:31,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:32,377 INFO L225 Difference]: With dead ends: 336401 [2024-11-22 02:20:32,378 INFO L226 Difference]: Without dead ends: 197742 [2024-11-22 02:20:33,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:20:33,146 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 590 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:33,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 788 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 02:20:33,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197742 states. [2024-11-22 02:20:45,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197742 to 138675. [2024-11-22 02:20:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138675 states, 126580 states have (on average 1.7166455996207932) internal successors, (217293), 132887 states have internal predecessors, (217293), 4246 states have call successors, (4246), 1542 states have call predecessors, (4246), 7848 states have return successors, (69782), 4501 states have call predecessors, (69782), 4246 states have call successors, (69782) [2024-11-22 02:20:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138675 states to 138675 states and 291321 transitions. [2024-11-22 02:20:47,243 INFO L78 Accepts]: Start accepts. Automaton has 138675 states and 291321 transitions. Word has length 133 [2024-11-22 02:20:47,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:47,244 INFO L471 AbstractCegarLoop]: Abstraction has 138675 states and 291321 transitions. [2024-11-22 02:20:47,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:20:47,244 INFO L276 IsEmpty]: Start isEmpty. Operand 138675 states and 291321 transitions. [2024-11-22 02:20:47,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 02:20:47,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:47,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:47,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:20:47,305 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:47,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:47,306 INFO L85 PathProgramCache]: Analyzing trace with hash -434696682, now seen corresponding path program 1 times [2024-11-22 02:20:47,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:47,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842974034] [2024-11-22 02:20:47,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:47,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:47,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:47,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:47,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842974034] [2024-11-22 02:20:47,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842974034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:47,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:47,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:20:47,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203946670] [2024-11-22 02:20:47,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:47,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:20:47,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:47,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:20:47,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:20:47,435 INFO L87 Difference]: Start difference. First operand 138675 states and 291321 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)