./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 7bfb32b49701ea1484553c69a9c6c976094bd0d4ca4d5ea9d4d30cdc2f2571dd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 06:07:43,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 06:07:43,558 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 06:07:43,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 06:07:43,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 06:07:43,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 06:07:43,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 06:07:43,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 06:07:43,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 06:07:43,578 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 06:07:43,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 06:07:43,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 06:07:43,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 06:07:43,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 06:07:43,580 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 06:07:43,580 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 06:07:43,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 06:07:43,580 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 06:07:43,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 06:07:43,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 06:07:43,581 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 06:07:43,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 06:07:43,583 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 06:07:43,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 06:07:43,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 06:07:43,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 06:07:43,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 06:07:43,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 06:07:43,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 06:07:43,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 06:07:43,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 06:07:43,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 06:07:43,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 06:07:43,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 06:07:43,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 06:07:43,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 06:07:43,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 06:07:43,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 06:07:43,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 06:07:43,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bfb32b49701ea1484553c69a9c6c976094bd0d4ca4d5ea9d4d30cdc2f2571dd [2024-11-22 06:07:43,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 06:07:43,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 06:07:43,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 06:07:43,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 06:07:43,868 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 06:07:43,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c [2024-11-22 06:07:45,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 06:07:45,429 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 06:07:45,433 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c [2024-11-22 06:07:45,447 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4505f7e35/141cad1ee89144b284d1ff42cbc88971/FLAGb4fe6d1dc [2024-11-22 06:07:45,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4505f7e35/141cad1ee89144b284d1ff42cbc88971 [2024-11-22 06:07:45,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 06:07:45,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 06:07:45,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 06:07:45,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 06:07:45,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 06:07:45,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:07:45" (1/1) ... [2024-11-22 06:07:45,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7a721d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:45, skipping insertion in model container [2024-11-22 06:07:45,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:07:45" (1/1) ... [2024-11-22 06:07:45,559 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 06:07:45,842 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c[1255,1268] [2024-11-22 06:07:46,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 06:07:46,105 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 06:07:46,118 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/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c[1255,1268] [2024-11-22 06:07:46,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 06:07:46,294 INFO L204 MainTranslator]: Completed translation [2024-11-22 06:07:46,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46 WrapperNode [2024-11-22 06:07:46,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 06:07:46,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 06:07:46,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 06:07:46,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 06:07:46,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,414 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1244 [2024-11-22 06:07:46,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 06:07:46,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 06:07:46,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 06:07:46,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 06:07:46,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,501 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 06:07:46,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 06:07:46,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 06:07:46,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 06:07:46,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 06:07:46,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (1/1) ... [2024-11-22 06:07:46,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 06:07:46,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:07:46,634 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 06:07:46,642 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 06:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 06:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 06:07:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 06:07:46,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 06:07:46,795 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 06:07:46,797 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 06:07:47,930 INFO L? ?]: Removed 682 outVars from TransFormulas that were not future-live. [2024-11-22 06:07:47,930 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 06:07:47,952 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 06:07:47,955 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 06:07:47,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:07:47 BoogieIcfgContainer [2024-11-22 06:07:47,955 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 06:07:47,957 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 06:07:47,957 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 06:07:47,961 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 06:07:47,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:07:45" (1/3) ... [2024-11-22 06:07:47,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5175a878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:07:47, skipping insertion in model container [2024-11-22 06:07:47,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:07:46" (2/3) ... [2024-11-22 06:07:47,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5175a878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:07:47, skipping insertion in model container [2024-11-22 06:07:47,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:07:47" (3/3) ... [2024-11-22 06:07:47,963 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_palu.c [2024-11-22 06:07:47,976 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 06:07:47,977 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 06:07:48,038 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 06:07:48,044 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;@36e96009, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 06:07:48,044 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 06:07:48,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 360 states have (on average 1.4972222222222222) internal successors, (539), 361 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:48,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-22 06:07:48,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:48,057 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] [2024-11-22 06:07:48,057 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:48,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:48,062 INFO L85 PathProgramCache]: Analyzing trace with hash 596137605, now seen corresponding path program 1 times [2024-11-22 06:07:48,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:48,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888540102] [2024-11-22 06:07:48,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:48,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:48,798 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 06:07:48,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:48,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888540102] [2024-11-22 06:07:48,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888540102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:48,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:48,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:07:48,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312987047] [2024-11-22 06:07:48,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:48,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:07:48,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:48,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:07:48,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:07:48,826 INFO L87 Difference]: Start difference. First operand has 362 states, 360 states have (on average 1.4972222222222222) internal successors, (539), 361 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:48,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:48,901 INFO L93 Difference]: Finished difference Result 681 states and 1017 transitions. [2024-11-22 06:07:48,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:07:48,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-22 06:07:48,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:48,915 INFO L225 Difference]: With dead ends: 681 [2024-11-22 06:07:48,915 INFO L226 Difference]: Without dead ends: 361 [2024-11-22 06:07:48,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:07:48,923 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:48,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1593 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:07:48,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-22 06:07:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-11-22 06:07:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.4916666666666667) internal successors, (537), 360 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:48,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 537 transitions. [2024-11-22 06:07:48,983 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 537 transitions. Word has length 51 [2024-11-22 06:07:48,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:48,984 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 537 transitions. [2024-11-22 06:07:48,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:48,984 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 537 transitions. [2024-11-22 06:07:48,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-22 06:07:48,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:48,986 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] [2024-11-22 06:07:48,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 06:07:48,986 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:48,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:48,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1302092023, now seen corresponding path program 1 times [2024-11-22 06:07:48,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:48,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856022199] [2024-11-22 06:07:48,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:48,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:49,293 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 06:07:49,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:49,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856022199] [2024-11-22 06:07:49,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856022199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:49,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:49,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:07:49,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651652072] [2024-11-22 06:07:49,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:49,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:07:49,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:49,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:07:49,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:07:49,297 INFO L87 Difference]: Start difference. First operand 361 states and 537 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:49,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:49,332 INFO L93 Difference]: Finished difference Result 682 states and 1015 transitions. [2024-11-22 06:07:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:07:49,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-22 06:07:49,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:49,335 INFO L225 Difference]: With dead ends: 682 [2024-11-22 06:07:49,338 INFO L226 Difference]: Without dead ends: 363 [2024-11-22 06:07:49,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:07:49,340 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:49,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1589 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:07:49,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-22 06:07:49,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-22 06:07:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 1.488950276243094) internal successors, (539), 362 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 539 transitions. [2024-11-22 06:07:49,361 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 539 transitions. Word has length 52 [2024-11-22 06:07:49,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:49,362 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 539 transitions. [2024-11-22 06:07:49,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 539 transitions. [2024-11-22 06:07:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-22 06:07:49,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:49,365 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] [2024-11-22 06:07:49,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 06:07:49,366 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:49,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:49,366 INFO L85 PathProgramCache]: Analyzing trace with hash 612181406, now seen corresponding path program 1 times [2024-11-22 06:07:49,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:49,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770135448] [2024-11-22 06:07:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:49,689 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 06:07:49,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:49,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770135448] [2024-11-22 06:07:49,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770135448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:49,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:49,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:07:49,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763981823] [2024-11-22 06:07:49,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:49,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:07:49,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:49,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:07:49,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:07:49,693 INFO L87 Difference]: Start difference. First operand 363 states and 539 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:49,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:49,719 INFO L93 Difference]: Finished difference Result 686 states and 1019 transitions. [2024-11-22 06:07:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:07:49,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-22 06:07:49,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:49,722 INFO L225 Difference]: With dead ends: 686 [2024-11-22 06:07:49,722 INFO L226 Difference]: Without dead ends: 365 [2024-11-22 06:07:49,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:07:49,725 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:49,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1589 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:07:49,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-22 06:07:49,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-22 06:07:49,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.4862637362637363) internal successors, (541), 364 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:49,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 541 transitions. [2024-11-22 06:07:49,742 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 541 transitions. Word has length 53 [2024-11-22 06:07:49,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:49,743 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 541 transitions. [2024-11-22 06:07:49,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 541 transitions. [2024-11-22 06:07:49,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-22 06:07:49,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:49,747 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] [2024-11-22 06:07:49,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 06:07:49,747 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:49,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:49,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1588325794, now seen corresponding path program 1 times [2024-11-22 06:07:49,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:49,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134848220] [2024-11-22 06:07:49,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:49,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:49,948 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 06:07:49,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:49,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134848220] [2024-11-22 06:07:49,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134848220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:49,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:49,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:07:49,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403429817] [2024-11-22 06:07:49,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:49,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:07:49,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:49,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:07:49,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:07:49,952 INFO L87 Difference]: Start difference. First operand 365 states and 541 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:49,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:49,991 INFO L93 Difference]: Finished difference Result 718 states and 1065 transitions. [2024-11-22 06:07:49,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 06:07:49,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-22 06:07:49,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:49,993 INFO L225 Difference]: With dead ends: 718 [2024-11-22 06:07:49,993 INFO L226 Difference]: Without dead ends: 395 [2024-11-22 06:07:49,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:07:49,995 INFO L432 NwaCegarLoop]: 532 mSDtfsCounter, 28 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:49,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2116 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:07:49,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-22 06:07:50,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-22 06:07:50,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 394 states have (on average 1.484771573604061) internal successors, (585), 394 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:50,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 585 transitions. [2024-11-22 06:07:50,007 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 585 transitions. Word has length 54 [2024-11-22 06:07:50,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:50,008 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 585 transitions. [2024-11-22 06:07:50,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:50,009 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 585 transitions. [2024-11-22 06:07:50,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-22 06:07:50,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:50,011 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] [2024-11-22 06:07:50,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 06:07:50,011 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:50,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash 111431526, now seen corresponding path program 1 times [2024-11-22 06:07:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:50,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386246823] [2024-11-22 06:07:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:50,510 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 06:07:50,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:50,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386246823] [2024-11-22 06:07:50,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386246823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:50,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:50,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:07:50,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365148974] [2024-11-22 06:07:50,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:50,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:07:50,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:50,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:07:50,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:07:50,511 INFO L87 Difference]: Start difference. First operand 395 states and 585 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:50,604 INFO L93 Difference]: Finished difference Result 758 states and 1123 transitions. [2024-11-22 06:07:50,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:07:50,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-22 06:07:50,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:50,607 INFO L225 Difference]: With dead ends: 758 [2024-11-22 06:07:50,608 INFO L226 Difference]: Without dead ends: 405 [2024-11-22 06:07:50,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:07:50,611 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 501 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 2614 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:50,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 2614 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 06:07:50,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-22 06:07:50,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 401. [2024-11-22 06:07:50,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.4825) internal successors, (593), 400 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:50,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 593 transitions. [2024-11-22 06:07:50,619 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 593 transitions. Word has length 55 [2024-11-22 06:07:50,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:50,619 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 593 transitions. [2024-11-22 06:07:50,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:50,619 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 593 transitions. [2024-11-22 06:07:50,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 06:07:50,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:50,623 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] [2024-11-22 06:07:50,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 06:07:50,624 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:50,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash 273603503, now seen corresponding path program 1 times [2024-11-22 06:07:50,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:50,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458214670] [2024-11-22 06:07:50,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:50,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:50,975 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 06:07:50,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:50,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458214670] [2024-11-22 06:07:50,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458214670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:50,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:50,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:07:50,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508052385] [2024-11-22 06:07:50,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:50,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:07:50,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:50,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:07:50,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:07:50,977 INFO L87 Difference]: Start difference. First operand 401 states and 593 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:51,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:51,078 INFO L93 Difference]: Finished difference Result 782 states and 1158 transitions. [2024-11-22 06:07:51,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:07:51,078 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-22 06:07:51,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:51,081 INFO L225 Difference]: With dead ends: 782 [2024-11-22 06:07:51,082 INFO L226 Difference]: Without dead ends: 423 [2024-11-22 06:07:51,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-22 06:07:51,084 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 515 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:51,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 3140 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 06:07:51,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-22 06:07:51,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 419. [2024-11-22 06:07:51,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 1.4760765550239234) internal successors, (617), 418 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 617 transitions. [2024-11-22 06:07:51,091 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 617 transitions. Word has length 56 [2024-11-22 06:07:51,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:51,092 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 617 transitions. [2024-11-22 06:07:51,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:51,094 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 617 transitions. [2024-11-22 06:07:51,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 06:07:51,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:51,096 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] [2024-11-22 06:07:51,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 06:07:51,096 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:51,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:51,097 INFO L85 PathProgramCache]: Analyzing trace with hash 4551560, now seen corresponding path program 1 times [2024-11-22 06:07:51,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:51,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227367306] [2024-11-22 06:07:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:51,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:51,476 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 06:07:51,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:51,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227367306] [2024-11-22 06:07:51,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227367306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:51,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:51,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:07:51,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919276636] [2024-11-22 06:07:51,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:51,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:07:51,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:51,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:07:51,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:07:51,479 INFO L87 Difference]: Start difference. First operand 419 states and 617 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:51,700 INFO L93 Difference]: Finished difference Result 810 states and 1191 transitions. [2024-11-22 06:07:51,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:07:51,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-22 06:07:51,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:51,701 INFO L225 Difference]: With dead ends: 810 [2024-11-22 06:07:51,701 INFO L226 Difference]: Without dead ends: 433 [2024-11-22 06:07:51,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:07:51,704 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 495 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:51,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 2385 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 06:07:51,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-22 06:07:51,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 419. [2024-11-22 06:07:51,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 1.4760765550239234) internal successors, (617), 418 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:51,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 617 transitions. [2024-11-22 06:07:51,711 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 617 transitions. Word has length 56 [2024-11-22 06:07:51,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:51,711 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 617 transitions. [2024-11-22 06:07:51,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:51,711 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 617 transitions. [2024-11-22 06:07:51,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-22 06:07:51,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:51,712 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] [2024-11-22 06:07:51,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 06:07:51,712 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:51,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:51,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1213928041, now seen corresponding path program 1 times [2024-11-22 06:07:51,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:51,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597228733] [2024-11-22 06:07:51,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:51,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:52,205 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 06:07:52,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:52,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597228733] [2024-11-22 06:07:52,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597228733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:52,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:52,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:07:52,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846201897] [2024-11-22 06:07:52,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:52,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:07:52,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:52,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:07:52,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:07:52,209 INFO L87 Difference]: Start difference. First operand 419 states and 617 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:52,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:52,301 INFO L93 Difference]: Finished difference Result 804 states and 1184 transitions. [2024-11-22 06:07:52,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:07:52,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-22 06:07:52,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:52,303 INFO L225 Difference]: With dead ends: 804 [2024-11-22 06:07:52,303 INFO L226 Difference]: Without dead ends: 427 [2024-11-22 06:07:52,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:07:52,304 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 528 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:52,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 2107 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:07:52,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-22 06:07:52,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2024-11-22 06:07:52,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 1.4752941176470589) internal successors, (627), 425 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:52,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 627 transitions. [2024-11-22 06:07:52,315 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 627 transitions. Word has length 57 [2024-11-22 06:07:52,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:52,316 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 627 transitions. [2024-11-22 06:07:52,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:52,316 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 627 transitions. [2024-11-22 06:07:52,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-22 06:07:52,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:52,317 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] [2024-11-22 06:07:52,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 06:07:52,318 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:52,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:52,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1195833884, now seen corresponding path program 1 times [2024-11-22 06:07:52,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:52,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948942101] [2024-11-22 06:07:52,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:52,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:52,866 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 06:07:52,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:52,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948942101] [2024-11-22 06:07:52,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948942101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:52,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:52,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 06:07:52,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689493914] [2024-11-22 06:07:52,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:52,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 06:07:52,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:52,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 06:07:52,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 06:07:52,869 INFO L87 Difference]: Start difference. First operand 426 states and 627 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:52,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:52,940 INFO L93 Difference]: Finished difference Result 964 states and 1413 transitions. [2024-11-22 06:07:52,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 06:07:52,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-22 06:07:52,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:52,942 INFO L225 Difference]: With dead ends: 964 [2024-11-22 06:07:52,942 INFO L226 Difference]: Without dead ends: 580 [2024-11-22 06:07:52,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:07:52,943 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 793 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:52,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1560 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:07:52,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-22 06:07:52,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 497. [2024-11-22 06:07:52,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.469758064516129) internal successors, (729), 496 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:52,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 729 transitions. [2024-11-22 06:07:52,965 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 729 transitions. Word has length 58 [2024-11-22 06:07:52,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:52,965 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 729 transitions. [2024-11-22 06:07:52,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:52,966 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 729 transitions. [2024-11-22 06:07:52,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-22 06:07:52,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:52,966 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] [2024-11-22 06:07:52,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 06:07:52,966 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:52,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:52,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2071929649, now seen corresponding path program 1 times [2024-11-22 06:07:52,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:52,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221728595] [2024-11-22 06:07:52,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:52,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:53,469 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 06:07:53,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:53,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221728595] [2024-11-22 06:07:53,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221728595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:53,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:53,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:07:53,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728524546] [2024-11-22 06:07:53,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:53,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:07:53,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:53,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:07:53,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:07:53,470 INFO L87 Difference]: Start difference. First operand 497 states and 729 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:53,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:53,513 INFO L93 Difference]: Finished difference Result 908 states and 1332 transitions. [2024-11-22 06:07:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:07:53,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-22 06:07:53,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:53,516 INFO L225 Difference]: With dead ends: 908 [2024-11-22 06:07:53,516 INFO L226 Difference]: Without dead ends: 495 [2024-11-22 06:07:53,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:07:53,516 INFO L432 NwaCegarLoop]: 532 mSDtfsCounter, 523 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:53,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 2116 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:07:53,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-22 06:07:53,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2024-11-22 06:07:53,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.4676113360323886) internal successors, (725), 494 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:53,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 725 transitions. [2024-11-22 06:07:53,524 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 725 transitions. Word has length 58 [2024-11-22 06:07:53,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:53,524 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 725 transitions. [2024-11-22 06:07:53,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:53,525 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 725 transitions. [2024-11-22 06:07:53,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-22 06:07:53,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:53,527 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] [2024-11-22 06:07:53,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 06:07:53,527 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:53,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:53,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1833886746, now seen corresponding path program 1 times [2024-11-22 06:07:53,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:53,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556240622] [2024-11-22 06:07:53,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:53,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:53,700 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 06:07:53,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:53,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556240622] [2024-11-22 06:07:53,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556240622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:53,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:53,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:07:53,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233282837] [2024-11-22 06:07:53,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:53,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:07:53,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:53,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:07:53,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:07:53,702 INFO L87 Difference]: Start difference. First operand 495 states and 725 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:53,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:53,913 INFO L93 Difference]: Finished difference Result 1171 states and 1719 transitions. [2024-11-22 06:07:53,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 06:07:53,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-22 06:07:53,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:53,915 INFO L225 Difference]: With dead ends: 1171 [2024-11-22 06:07:53,915 INFO L226 Difference]: Without dead ends: 726 [2024-11-22 06:07:53,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:07:53,916 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 1379 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:53,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 1943 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 06:07:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-22 06:07:53,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 460. [2024-11-22 06:07:53,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.4662309368191722) internal successors, (673), 459 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:53,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 673 transitions. [2024-11-22 06:07:53,924 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 673 transitions. Word has length 58 [2024-11-22 06:07:53,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:53,924 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 673 transitions. [2024-11-22 06:07:53,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:53,925 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 673 transitions. [2024-11-22 06:07:53,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-22 06:07:53,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:53,928 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:53,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 06:07:53,928 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:53,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:53,929 INFO L85 PathProgramCache]: Analyzing trace with hash 321816023, now seen corresponding path program 1 times [2024-11-22 06:07:53,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:53,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820783312] [2024-11-22 06:07:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:53,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:07:54,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:54,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820783312] [2024-11-22 06:07:54,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820783312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:07:54,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496015580] [2024-11-22 06:07:54,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:54,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:07:54,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:07:54,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:07:54,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 06:07:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:55,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 06:07:55,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:07:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:07:55,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 06:07:55,933 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:07:55,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496015580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 06:07:55,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 06:07:55,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-22 06:07:55,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558696712] [2024-11-22 06:07:55,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 06:07:55,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 06:07:55,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:55,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 06:07:55,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:07:55,936 INFO L87 Difference]: Start difference. First operand 460 states and 673 transitions. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:56,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:56,227 INFO L93 Difference]: Finished difference Result 1125 states and 1646 transitions. [2024-11-22 06:07:56,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:07:56,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2024-11-22 06:07:56,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:56,229 INFO L225 Difference]: With dead ends: 1125 [2024-11-22 06:07:56,229 INFO L226 Difference]: Without dead ends: 477 [2024-11-22 06:07:56,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-22 06:07:56,230 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 2116 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:56,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 1950 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 06:07:56,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-22 06:07:56,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 475. [2024-11-22 06:07:56,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.4535864978902953) internal successors, (689), 474 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:56,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 689 transitions. [2024-11-22 06:07:56,237 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 689 transitions. Word has length 217 [2024-11-22 06:07:56,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:56,237 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 689 transitions. [2024-11-22 06:07:56,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:56,237 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 689 transitions. [2024-11-22 06:07:56,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-22 06:07:56,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:56,239 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:56,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 06:07:56,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 06:07:56,444 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:56,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:56,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1759421432, now seen corresponding path program 1 times [2024-11-22 06:07:56,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:56,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74841142] [2024-11-22 06:07:56,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:56,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:07:57,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:57,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74841142] [2024-11-22 06:07:57,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74841142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:57,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:57,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 06:07:57,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993013418] [2024-11-22 06:07:57,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:57,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:07:57,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:57,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:07:57,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 06:07:57,244 INFO L87 Difference]: Start difference. First operand 475 states and 689 transitions. Second operand has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:57,492 INFO L93 Difference]: Finished difference Result 1156 states and 1689 transitions. [2024-11-22 06:07:57,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:07:57,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2024-11-22 06:07:57,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:57,495 INFO L225 Difference]: With dead ends: 1156 [2024-11-22 06:07:57,495 INFO L226 Difference]: Without dead ends: 773 [2024-11-22 06:07:57,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:07:57,496 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 1528 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:57,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 1427 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 06:07:57,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-22 06:07:57,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 727. [2024-11-22 06:07:57,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 726 states have (on average 1.4683195592286502) internal successors, (1066), 726 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:57,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1066 transitions. [2024-11-22 06:07:57,507 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1066 transitions. Word has length 218 [2024-11-22 06:07:57,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:57,507 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1066 transitions. [2024-11-22 06:07:57,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:57,507 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1066 transitions. [2024-11-22 06:07:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-22 06:07:57,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:57,509 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:57,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 06:07:57,509 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:57,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:57,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1060257666, now seen corresponding path program 1 times [2024-11-22 06:07:57,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:57,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318193718] [2024-11-22 06:07:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:57,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:58,192 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:07:58,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:58,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318193718] [2024-11-22 06:07:58,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318193718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:58,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:58,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 06:07:58,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448305191] [2024-11-22 06:07:58,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:58,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 06:07:58,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:58,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 06:07:58,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 06:07:58,195 INFO L87 Difference]: Start difference. First operand 727 states and 1066 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:58,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:58,481 INFO L93 Difference]: Finished difference Result 1360 states and 2003 transitions. [2024-11-22 06:07:58,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 06:07:58,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-11-22 06:07:58,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:58,484 INFO L225 Difference]: With dead ends: 1360 [2024-11-22 06:07:58,484 INFO L226 Difference]: Without dead ends: 727 [2024-11-22 06:07:58,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:07:58,487 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 599 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:58,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1125 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 06:07:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-22 06:07:58,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 727. [2024-11-22 06:07:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 726 states have (on average 1.4669421487603307) internal successors, (1065), 726 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:58,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1065 transitions. [2024-11-22 06:07:58,535 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1065 transitions. Word has length 219 [2024-11-22 06:07:58,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:58,535 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1065 transitions. [2024-11-22 06:07:58,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:58,535 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1065 transitions. [2024-11-22 06:07:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-22 06:07:58,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:58,537 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:58,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 06:07:58,538 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:58,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:58,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1786280910, now seen corresponding path program 1 times [2024-11-22 06:07:58,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:58,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943789398] [2024-11-22 06:07:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:58,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:07:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:07:59,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:07:59,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943789398] [2024-11-22 06:07:59,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943789398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:07:59,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:07:59,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 06:07:59,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493702183] [2024-11-22 06:07:59,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:07:59,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 06:07:59,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:07:59,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 06:07:59,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 06:07:59,241 INFO L87 Difference]: Start difference. First operand 727 states and 1065 transitions. Second operand has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:59,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:07:59,691 INFO L93 Difference]: Finished difference Result 1112 states and 1631 transitions. [2024-11-22 06:07:59,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 06:07:59,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2024-11-22 06:07:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:07:59,694 INFO L225 Difference]: With dead ends: 1112 [2024-11-22 06:07:59,694 INFO L226 Difference]: Without dead ends: 729 [2024-11-22 06:07:59,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:07:59,697 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 1223 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 06:07:59,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 1124 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 06:07:59,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-22 06:07:59,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 728. [2024-11-22 06:07:59,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 727 states have (on average 1.4662998624484183) internal successors, (1066), 727 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:59,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1066 transitions. [2024-11-22 06:07:59,709 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1066 transitions. Word has length 220 [2024-11-22 06:07:59,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:07:59,710 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 1066 transitions. [2024-11-22 06:07:59,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:07:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1066 transitions. [2024-11-22 06:07:59,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-22 06:07:59,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:07:59,712 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:59,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 06:07:59,712 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:07:59,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:07:59,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1803128783, now seen corresponding path program 1 times [2024-11-22 06:07:59,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:07:59,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144436517] [2024-11-22 06:07:59,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:07:59,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:07:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:01,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:01,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144436517] [2024-11-22 06:08:01,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144436517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:08:01,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:08:01,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:08:01,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678667247] [2024-11-22 06:08:01,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:08:01,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:08:01,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:01,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:08:01,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:08:01,006 INFO L87 Difference]: Start difference. First operand 728 states and 1066 transitions. Second operand has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:01,739 INFO L93 Difference]: Finished difference Result 1481 states and 2173 transitions. [2024-11-22 06:08:01,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 06:08:01,739 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-22 06:08:01,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:01,743 INFO L225 Difference]: With dead ends: 1481 [2024-11-22 06:08:01,743 INFO L226 Difference]: Without dead ends: 1098 [2024-11-22 06:08:01,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:08:01,744 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 814 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 3396 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:01,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 3396 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:08:01,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-22 06:08:01,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 732. [2024-11-22 06:08:01,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.4637482900136798) internal successors, (1070), 731 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:01,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2024-11-22 06:08:01,759 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 221 [2024-11-22 06:08:01,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:01,759 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2024-11-22 06:08:01,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:01,759 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2024-11-22 06:08:01,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-22 06:08:01,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:01,761 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:08:01,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 06:08:01,762 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:01,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:01,762 INFO L85 PathProgramCache]: Analyzing trace with hash -570264786, now seen corresponding path program 1 times [2024-11-22 06:08:01,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:01,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689499722] [2024-11-22 06:08:01,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:01,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:02,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:02,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689499722] [2024-11-22 06:08:02,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689499722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:08:02,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:08:02,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:08:02,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195740433] [2024-11-22 06:08:02,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:08:02,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:08:02,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:02,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:08:02,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:08:02,590 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:03,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:03,278 INFO L93 Difference]: Finished difference Result 1489 states and 2181 transitions. [2024-11-22 06:08:03,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 06:08:03,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-22 06:08:03,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:03,282 INFO L225 Difference]: With dead ends: 1489 [2024-11-22 06:08:03,282 INFO L226 Difference]: Without dead ends: 1102 [2024-11-22 06:08:03,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:08:03,283 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 809 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 3401 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:03,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 3401 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 06:08:03,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-11-22 06:08:03,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 732. [2024-11-22 06:08:03,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.4637482900136798) internal successors, (1070), 731 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:03,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2024-11-22 06:08:03,295 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 222 [2024-11-22 06:08:03,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:03,295 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2024-11-22 06:08:03,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:03,295 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2024-11-22 06:08:03,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-22 06:08:03,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:03,297 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:08:03,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 06:08:03,297 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:03,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:03,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1842957116, now seen corresponding path program 1 times [2024-11-22 06:08:03,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:03,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609056516] [2024-11-22 06:08:03,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:03,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:04,401 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 06:08:04,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:04,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609056516] [2024-11-22 06:08:04,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609056516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:08:04,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461908037] [2024-11-22 06:08:04,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:04,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:04,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:08:04,405 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:08:04,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 06:08:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:04,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-22 06:08:05,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:08:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:05,595 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 06:08:06,144 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:06,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461908037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 06:08:06,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 06:08:06,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 8] total 19 [2024-11-22 06:08:06,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059889856] [2024-11-22 06:08:06,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 06:08:06,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 06:08:06,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:06,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 06:08:06,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-22 06:08:06,148 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand has 19 states, 19 states have (on average 29.68421052631579) internal successors, (564), 19 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:07,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:07,105 INFO L93 Difference]: Finished difference Result 1495 states and 2198 transitions. [2024-11-22 06:08:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 06:08:07,106 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 29.68421052631579) internal successors, (564), 19 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-22 06:08:07,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:07,109 INFO L225 Difference]: With dead ends: 1495 [2024-11-22 06:08:07,109 INFO L226 Difference]: Without dead ends: 1108 [2024-11-22 06:08:07,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=546, Unknown=0, NotChecked=0, Total=702 [2024-11-22 06:08:07,111 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 1700 mSDsluCounter, 3657 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:07,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 4025 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 06:08:07,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-11-22 06:08:07,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 732. [2024-11-22 06:08:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.4637482900136798) internal successors, (1070), 731 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2024-11-22 06:08:07,124 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 222 [2024-11-22 06:08:07,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:07,124 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2024-11-22 06:08:07,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 29.68421052631579) internal successors, (564), 19 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:07,125 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2024-11-22 06:08:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-22 06:08:07,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:07,127 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:08:07,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 06:08:07,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 06:08:07,331 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:07,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:07,334 INFO L85 PathProgramCache]: Analyzing trace with hash 323286701, now seen corresponding path program 1 times [2024-11-22 06:08:07,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:07,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146164149] [2024-11-22 06:08:07,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:07,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:08,005 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:08,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:08,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146164149] [2024-11-22 06:08:08,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146164149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:08:08,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716767735] [2024-11-22 06:08:08,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:08,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:08,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:08:08,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:08:08,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 06:08:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:08,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 06:08:08,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:08:09,210 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:09,211 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 06:08:09,649 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:09,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716767735] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 06:08:09,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 06:08:09,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-11-22 06:08:09,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205091220] [2024-11-22 06:08:09,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 06:08:09,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 06:08:09,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:09,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 06:08:09,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-22 06:08:09,653 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand has 18 states, 18 states have (on average 33.611111111111114) internal successors, (605), 18 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:10,462 INFO L93 Difference]: Finished difference Result 1485 states and 2163 transitions. [2024-11-22 06:08:10,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 06:08:10,463 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 33.611111111111114) internal successors, (605), 18 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2024-11-22 06:08:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:10,471 INFO L225 Difference]: With dead ends: 1485 [2024-11-22 06:08:10,471 INFO L226 Difference]: Without dead ends: 799 [2024-11-22 06:08:10,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2024-11-22 06:08:10,473 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 4944 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:10,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4944 Valid, 3364 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:08:10,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-22 06:08:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 746. [2024-11-22 06:08:10,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 745 states have (on average 1.457718120805369) internal successors, (1086), 745 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:10,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1086 transitions. [2024-11-22 06:08:10,499 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1086 transitions. Word has length 223 [2024-11-22 06:08:10,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:10,500 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 1086 transitions. [2024-11-22 06:08:10,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 33.611111111111114) internal successors, (605), 18 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:10,501 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1086 transitions. [2024-11-22 06:08:10,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-22 06:08:10,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:10,506 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:08:10,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 06:08:10,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:10,707 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:10,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:10,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1493491252, now seen corresponding path program 1 times [2024-11-22 06:08:10,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:10,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47823751] [2024-11-22 06:08:10,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:10,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 185 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:12,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:12,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47823751] [2024-11-22 06:08:12,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47823751] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:08:12,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939398702] [2024-11-22 06:08:12,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:12,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:12,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:08:12,319 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:08:12,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 06:08:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:13,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 2480 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 06:08:13,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:08:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 185 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:13,931 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 06:08:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 185 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:14,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939398702] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 06:08:14,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 06:08:14,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-22 06:08:14,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762607386] [2024-11-22 06:08:14,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 06:08:14,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 06:08:14,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:14,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 06:08:14,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-22 06:08:14,672 INFO L87 Difference]: Start difference. First operand 746 states and 1086 transitions. Second operand has 15 states, 15 states have (on average 40.13333333333333) internal successors, (602), 15 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:15,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:15,225 INFO L93 Difference]: Finished difference Result 1187 states and 1727 transitions. [2024-11-22 06:08:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 06:08:15,225 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 40.13333333333333) internal successors, (602), 15 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 384 [2024-11-22 06:08:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:15,228 INFO L225 Difference]: With dead ends: 1187 [2024-11-22 06:08:15,229 INFO L226 Difference]: Without dead ends: 800 [2024-11-22 06:08:15,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 782 GetRequests, 761 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-11-22 06:08:15,230 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 3252 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3252 SdHoareTripleChecker+Valid, 3777 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:15,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3252 Valid, 3777 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 06:08:15,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-22 06:08:15,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 798. [2024-11-22 06:08:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4504391468005018) internal successors, (1156), 797 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:15,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1156 transitions. [2024-11-22 06:08:15,241 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1156 transitions. Word has length 384 [2024-11-22 06:08:15,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:15,242 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1156 transitions. [2024-11-22 06:08:15,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 40.13333333333333) internal successors, (602), 15 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:15,242 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1156 transitions. [2024-11-22 06:08:15,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-22 06:08:15,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:15,246 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:08:15,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 06:08:15,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:15,450 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:15,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:15,451 INFO L85 PathProgramCache]: Analyzing trace with hash 585240963, now seen corresponding path program 1 times [2024-11-22 06:08:15,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:15,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587060921] [2024-11-22 06:08:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:15,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 185 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:16,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:16,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587060921] [2024-11-22 06:08:16,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587060921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:08:16,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491884732] [2024-11-22 06:08:16,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:16,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:16,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:08:16,694 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:08:16,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 06:08:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:17,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 06:08:17,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:08:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:18,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 06:08:18,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491884732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:08:18,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 06:08:18,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-22 06:08:18,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889798192] [2024-11-22 06:08:18,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:08:18,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 06:08:18,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:18,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 06:08:18,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:08:18,539 INFO L87 Difference]: Start difference. First operand 798 states and 1156 transitions. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:18,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:18,891 INFO L93 Difference]: Finished difference Result 1545 states and 2247 transitions. [2024-11-22 06:08:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 06:08:18,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2024-11-22 06:08:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:18,894 INFO L225 Difference]: With dead ends: 1545 [2024-11-22 06:08:18,894 INFO L226 Difference]: Without dead ends: 1158 [2024-11-22 06:08:18,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:08:18,895 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 964 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:18,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 1519 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 06:08:18,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-22 06:08:18,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1156. [2024-11-22 06:08:18,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.451082251082251) internal successors, (1676), 1155 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:18,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1676 transitions. [2024-11-22 06:08:18,908 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1676 transitions. Word has length 385 [2024-11-22 06:08:18,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:18,909 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1676 transitions. [2024-11-22 06:08:18,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:18,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1676 transitions. [2024-11-22 06:08:18,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-22 06:08:18,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:18,911 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:08:18,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 06:08:19,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:19,113 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:19,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:19,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1311956855, now seen corresponding path program 1 times [2024-11-22 06:08:19,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:19,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984905042] [2024-11-22 06:08:19,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:19,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 187 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:20,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:20,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984905042] [2024-11-22 06:08:20,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984905042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:08:20,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187933951] [2024-11-22 06:08:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:20,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:20,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:08:20,526 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:08:20,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 06:08:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:21,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-22 06:08:21,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:08:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 187 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:22,609 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 06:08:23,227 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 186 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:23,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187933951] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 06:08:23,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 06:08:23,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 15 [2024-11-22 06:08:23,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967766668] [2024-11-22 06:08:23,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 06:08:23,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 06:08:23,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:23,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 06:08:23,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-22 06:08:23,230 INFO L87 Difference]: Start difference. First operand 1156 states and 1676 transitions. Second operand has 15 states, 15 states have (on average 40.46666666666667) internal successors, (607), 15 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:24,158 INFO L93 Difference]: Finished difference Result 1851 states and 2697 transitions. [2024-11-22 06:08:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 06:08:24,159 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 40.46666666666667) internal successors, (607), 15 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2024-11-22 06:08:24,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:24,162 INFO L225 Difference]: With dead ends: 1851 [2024-11-22 06:08:24,162 INFO L226 Difference]: Without dead ends: 1160 [2024-11-22 06:08:24,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 785 GetRequests, 763 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2024-11-22 06:08:24,164 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 1724 mSDsluCounter, 3698 mSDsCounter, 0 mSdLazyCounter, 1811 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 4069 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:24,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 4069 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1811 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 06:08:24,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-22 06:08:24,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1158. [2024-11-22 06:08:24,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1157 states have (on average 1.4503025064822819) internal successors, (1678), 1157 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1678 transitions. [2024-11-22 06:08:24,175 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1678 transitions. Word has length 385 [2024-11-22 06:08:24,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:24,176 INFO L471 AbstractCegarLoop]: Abstraction has 1158 states and 1678 transitions. [2024-11-22 06:08:24,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 40.46666666666667) internal successors, (607), 15 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:24,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1678 transitions. [2024-11-22 06:08:24,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-22 06:08:24,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:24,178 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:08:24,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 06:08:24,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:24,383 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:24,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:24,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1519051669, now seen corresponding path program 1 times [2024-11-22 06:08:24,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:24,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299714700] [2024-11-22 06:08:24,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:24,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:26,153 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 81 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:26,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:26,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299714700] [2024-11-22 06:08:26,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299714700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:08:26,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237186105] [2024-11-22 06:08:26,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:26,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:26,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:08:26,156 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:08:26,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 06:08:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:27,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-22 06:08:27,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:08:28,136 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 184 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 06:08:28,136 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 06:08:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 213 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 06:08:28,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237186105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 06:08:28,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 06:08:28,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 23 [2024-11-22 06:08:28,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542401324] [2024-11-22 06:08:28,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 06:08:28,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-22 06:08:28,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:28,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-22 06:08:28,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-22 06:08:28,605 INFO L87 Difference]: Start difference. First operand 1158 states and 1678 transitions. Second operand has 23 states, 23 states have (on average 41.65217391304348) internal successors, (958), 23 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:30,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:30,882 INFO L93 Difference]: Finished difference Result 3459 states and 5025 transitions. [2024-11-22 06:08:30,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-22 06:08:30,883 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 41.65217391304348) internal successors, (958), 23 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 386 [2024-11-22 06:08:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:30,889 INFO L225 Difference]: With dead ends: 3459 [2024-11-22 06:08:30,889 INFO L226 Difference]: Without dead ends: 2404 [2024-11-22 06:08:30,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 761 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=436, Invalid=1820, Unknown=0, NotChecked=0, Total=2256 [2024-11-22 06:08:30,891 INFO L432 NwaCegarLoop]: 776 mSDtfsCounter, 3095 mSDsluCounter, 9095 mSDsCounter, 0 mSdLazyCounter, 4327 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3095 SdHoareTripleChecker+Valid, 9871 SdHoareTripleChecker+Invalid, 4331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:30,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3095 Valid, 9871 Invalid, 4331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4327 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-22 06:08:30,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2024-11-22 06:08:30,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1638. [2024-11-22 06:08:30,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1637 states have (on average 1.4410507025045816) internal successors, (2359), 1637 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2359 transitions. [2024-11-22 06:08:30,911 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2359 transitions. Word has length 386 [2024-11-22 06:08:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:30,911 INFO L471 AbstractCegarLoop]: Abstraction has 1638 states and 2359 transitions. [2024-11-22 06:08:30,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 41.65217391304348) internal successors, (958), 23 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:30,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2359 transitions. [2024-11-22 06:08:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-22 06:08:30,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:30,915 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:08:30,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 06:08:31,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:31,119 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:31,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:31,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1862927634, now seen corresponding path program 1 times [2024-11-22 06:08:31,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:31,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827804347] [2024-11-22 06:08:31,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:31,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 81 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:32,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:32,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827804347] [2024-11-22 06:08:32,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827804347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:08:32,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640541681] [2024-11-22 06:08:32,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:32,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:32,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:08:32,881 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:08:32,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 06:08:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:34,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 06:08:34,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:08:34,834 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 81 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:34,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 06:08:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 81 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:35,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640541681] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 06:08:35,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 06:08:35,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 24 [2024-11-22 06:08:35,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882653342] [2024-11-22 06:08:35,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 06:08:35,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 06:08:35,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:35,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 06:08:35,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2024-11-22 06:08:35,633 INFO L87 Difference]: Start difference. First operand 1638 states and 2359 transitions. Second operand has 24 states, 24 states have (on average 43.916666666666664) internal successors, (1054), 24 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:38,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:38,379 INFO L93 Difference]: Finished difference Result 3977 states and 5708 transitions. [2024-11-22 06:08:38,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-22 06:08:38,380 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 43.916666666666664) internal successors, (1054), 24 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-11-22 06:08:38,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:38,392 INFO L225 Difference]: With dead ends: 3977 [2024-11-22 06:08:38,392 INFO L226 Difference]: Without dead ends: 2871 [2024-11-22 06:08:38,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 777 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=362, Invalid=2290, Unknown=0, NotChecked=0, Total=2652 [2024-11-22 06:08:38,399 INFO L432 NwaCegarLoop]: 1387 mSDtfsCounter, 2546 mSDsluCounter, 15126 mSDsCounter, 0 mSdLazyCounter, 5736 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2546 SdHoareTripleChecker+Valid, 16513 SdHoareTripleChecker+Invalid, 5739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:38,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2546 Valid, 16513 Invalid, 5739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5736 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-22 06:08:38,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2024-11-22 06:08:38,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1626. [2024-11-22 06:08:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1625 states have (on average 1.4443076923076923) internal successors, (2347), 1625 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:38,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2347 transitions. [2024-11-22 06:08:38,459 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2347 transitions. Word has length 389 [2024-11-22 06:08:38,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:38,460 INFO L471 AbstractCegarLoop]: Abstraction has 1626 states and 2347 transitions. [2024-11-22 06:08:38,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 43.916666666666664) internal successors, (1054), 24 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:38,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2347 transitions. [2024-11-22 06:08:38,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-22 06:08:38,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:38,474 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:08:38,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 06:08:38,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-22 06:08:38,675 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:38,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:38,676 INFO L85 PathProgramCache]: Analyzing trace with hash -420484277, now seen corresponding path program 1 times [2024-11-22 06:08:38,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:38,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595232702] [2024-11-22 06:08:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:38,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-22 06:08:41,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:41,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595232702] [2024-11-22 06:08:41,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595232702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:08:41,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565693604] [2024-11-22 06:08:41,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:41,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:41,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:08:41,924 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:08:41,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 06:08:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:43,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-22 06:08:43,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:08:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 163 proven. 49 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 06:08:44,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 06:08:46,198 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 181 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 06:08:46,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565693604] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 06:08:46,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 06:08:46,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 18, 16] total 37 [2024-11-22 06:08:46,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272454500] [2024-11-22 06:08:46,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 06:08:46,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-22 06:08:46,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:46,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-22 06:08:46,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1096, Unknown=0, NotChecked=0, Total=1332 [2024-11-22 06:08:46,207 INFO L87 Difference]: Start difference. First operand 1626 states and 2347 transitions. Second operand has 37 states, 37 states have (on average 23.35135135135135) internal successors, (864), 37 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:49,039 INFO L93 Difference]: Finished difference Result 7637 states and 11058 transitions. [2024-11-22 06:08:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-22 06:08:49,040 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 23.35135135135135) internal successors, (864), 37 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-11-22 06:08:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:49,055 INFO L225 Difference]: With dead ends: 7637 [2024-11-22 06:08:49,056 INFO L226 Difference]: Without dead ends: 6175 [2024-11-22 06:08:49,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 750 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1489 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=746, Invalid=4804, Unknown=0, NotChecked=0, Total=5550 [2024-11-22 06:08:49,061 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 6229 mSDsluCounter, 7455 mSDsCounter, 0 mSdLazyCounter, 4293 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6229 SdHoareTripleChecker+Valid, 7883 SdHoareTripleChecker+Invalid, 4305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:49,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6229 Valid, 7883 Invalid, 4305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4293 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 06:08:49,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2024-11-22 06:08:49,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 2685. [2024-11-22 06:08:49,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2684 states have (on average 1.4485842026825633) internal successors, (3888), 2684 states have internal predecessors, (3888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3888 transitions. [2024-11-22 06:08:49,108 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3888 transitions. Word has length 389 [2024-11-22 06:08:49,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:49,108 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 3888 transitions. [2024-11-22 06:08:49,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 23.35135135135135) internal successors, (864), 37 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:49,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3888 transitions. [2024-11-22 06:08:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-22 06:08:49,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:49,113 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:08:49,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-22 06:08:49,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-22 06:08:49,321 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:49,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:49,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1296580042, now seen corresponding path program 1 times [2024-11-22 06:08:49,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:49,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41003175] [2024-11-22 06:08:49,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:49,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:51,597 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-22 06:08:51,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:08:51,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41003175] [2024-11-22 06:08:51,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41003175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:08:51,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133510098] [2024-11-22 06:08:51,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:51,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:08:51,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:08:51,599 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:08:51,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 06:08:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:08:52,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 2495 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-22 06:08:52,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:08:54,000 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 182 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 06:08:54,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 06:08:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 81 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 06:08:54,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133510098] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 06:08:54,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 06:08:54,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 28 [2024-11-22 06:08:54,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668656644] [2024-11-22 06:08:54,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 06:08:54,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-22 06:08:54,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:08:54,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-22 06:08:54,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2024-11-22 06:08:54,662 INFO L87 Difference]: Start difference. First operand 2685 states and 3888 transitions. Second operand has 28 states, 28 states have (on average 34.0) internal successors, (952), 28 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:57,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:08:57,739 INFO L93 Difference]: Finished difference Result 7838 states and 11349 transitions. [2024-11-22 06:08:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-22 06:08:57,739 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 34.0) internal successors, (952), 28 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-11-22 06:08:57,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:08:57,757 INFO L225 Difference]: With dead ends: 7838 [2024-11-22 06:08:57,758 INFO L226 Difference]: Without dead ends: 5212 [2024-11-22 06:08:57,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4484 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1816, Invalid=12946, Unknown=0, NotChecked=0, Total=14762 [2024-11-22 06:08:57,776 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 6638 mSDsluCounter, 6539 mSDsCounter, 0 mSdLazyCounter, 3310 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6638 SdHoareTripleChecker+Valid, 6950 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:08:57,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6638 Valid, 6950 Invalid, 3339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3310 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 06:08:57,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2024-11-22 06:08:57,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 3731. [2024-11-22 06:08:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 3730 states have (on average 1.434048257372654) internal successors, (5349), 3730 states have internal predecessors, (5349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:57,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 5349 transitions. [2024-11-22 06:08:57,868 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 5349 transitions. Word has length 389 [2024-11-22 06:08:57,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:08:57,871 INFO L471 AbstractCegarLoop]: Abstraction has 3731 states and 5349 transitions. [2024-11-22 06:08:57,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 34.0) internal successors, (952), 28 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 06:08:57,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 5349 transitions. [2024-11-22 06:08:57,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-22 06:08:57,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:08:57,889 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:08:57,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 06:08:58,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-22 06:08:58,090 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:08:58,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:08:58,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1997869021, now seen corresponding path program 1 times [2024-11-22 06:08:58,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:08:58,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933738869] [2024-11-22 06:08:58,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:08:58,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:08:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:09:01,551 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-22 06:09:01,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:09:01,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933738869] [2024-11-22 06:09:01,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933738869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:09:01,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554666680] [2024-11-22 06:09:01,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:09:01,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:09:01,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:09:01,553 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 06:09:01,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 06:09:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:09:02,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 2495 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-22 06:09:02,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:09:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 79 proven. 45 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-22 06:09:03,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 06:09:05,163 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 120 proven. 4 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-22 06:09:05,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554666680] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 06:09:05,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 06:09:05,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 29 [2024-11-22 06:09:05,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865725224] [2024-11-22 06:09:05,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 06:09:05,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-22 06:09:05,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:09:05,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-22 06:09:05,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-22 06:09:05,166 INFO L87 Difference]: Start difference. First operand 3731 states and 5349 transitions. Second operand has 29 states, 29 states have (on average 26.93103448275862) internal successors, (781), 29 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)