./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-25.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77ad24cb61a81820de21a387d3a45f445f59c8037143cf446293ba440ffb37aa --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 11:59:59,721 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 11:59:59,782 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 11:59:59,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 11:59:59,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 11:59:59,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 11:59:59,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 11:59:59,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 11:59:59,813 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 11:59:59,814 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 11:59:59,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 11:59:59,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 11:59:59,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 11:59:59,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 11:59:59,815 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 11:59:59,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 11:59:59,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 11:59:59,818 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 11:59:59,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 11:59:59,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 11:59:59,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 11:59:59,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 11:59:59,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 11:59:59,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 11:59:59,821 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 11:59:59,822 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 11:59:59,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 11:59:59,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 11:59:59,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 11:59:59,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 11:59:59,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 11:59:59,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 11:59:59,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:59:59,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 11:59:59,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 11:59:59,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 11:59:59,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 11:59:59,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 11:59:59,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 11:59:59,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 11:59:59,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 11:59:59,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 11:59:59,826 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77ad24cb61a81820de21a387d3a45f445f59c8037143cf446293ba440ffb37aa [2024-11-22 12:00:00,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:00:00,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:00:00,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:00:00,069 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:00:00,069 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:00:00,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-25.i [2024-11-22 12:00:01,327 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:00:01,554 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:00:01,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-25.i [2024-11-22 12:00:01,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beafa2a7a/a61b64a484e64d1daefcf7ea6597e6e2/FLAG8417b2284 [2024-11-22 12:00:01,582 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beafa2a7a/a61b64a484e64d1daefcf7ea6597e6e2 [2024-11-22 12:00:01,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:00:01,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:00:01,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:00:01,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:00:01,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:00:01,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:00:01" (1/1) ... [2024-11-22 12:00:01,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86ccbba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:01, skipping insertion in model container [2024-11-22 12:00:01,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:00:01" (1/1) ... [2024-11-22 12:00:01,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:00:01,790 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-25.i[916,929] [2024-11-22 12:00:01,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:00:02,026 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:00:02,063 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-25.i[916,929] [2024-11-22 12:00:02,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:00:02,206 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:00:02,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02 WrapperNode [2024-11-22 12:00:02,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:00:02,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:00:02,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:00:02,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:00:02,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,321 INFO L138 Inliner]: procedures = 26, calls = 81, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 728 [2024-11-22 12:00:02,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:00:02,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:00:02,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:00:02,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:00:02,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,350 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,408 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 12:00:02,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,501 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:00:02,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:00:02,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:00:02,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:00:02,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (1/1) ... [2024-11-22 12:00:02,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:00:02,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:00:02,537 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 12:00:02,540 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 12:00:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:00:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:00:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:00:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:00:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:00:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:00:02,719 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:00:02,720 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:00:03,803 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-11-22 12:00:03,803 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:00:03,823 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:00:03,825 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:00:03,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:00:03 BoogieIcfgContainer [2024-11-22 12:00:03,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:00:03,827 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:00:03,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:00:03,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:00:03,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:00:01" (1/3) ... [2024-11-22 12:00:03,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e896c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:00:03, skipping insertion in model container [2024-11-22 12:00:03,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:00:02" (2/3) ... [2024-11-22 12:00:03,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e896c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:00:03, skipping insertion in model container [2024-11-22 12:00:03,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:00:03" (3/3) ... [2024-11-22 12:00:03,835 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-25.i [2024-11-22 12:00:03,849 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:00:03,849 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:00:03,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:00:03,919 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;@140bd362, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:00:03,922 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:00:03,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 279 states, 208 states have (on average 1.5384615384615385) internal successors, (320), 209 states have internal predecessors, (320), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-22 12:00:03,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-22 12:00:03,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:03,956 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:03,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:03,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash 259673492, now seen corresponding path program 1 times [2024-11-22 12:00:03,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:03,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640017739] [2024-11-22 12:00:03,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:03,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:04,823 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:04,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:04,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640017739] [2024-11-22 12:00:04,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640017739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:04,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:04,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:00:04,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503279322] [2024-11-22 12:00:04,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:04,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:00:04,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:04,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:00:04,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:00:04,863 INFO L87 Difference]: Start difference. First operand has 279 states, 208 states have (on average 1.5384615384615385) internal successors, (320), 209 states have internal predecessors, (320), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:04,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:04,996 INFO L93 Difference]: Finished difference Result 691 states and 1208 transitions. [2024-11-22 12:00:05,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:00:05,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 472 [2024-11-22 12:00:05,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:05,016 INFO L225 Difference]: With dead ends: 691 [2024-11-22 12:00:05,018 INFO L226 Difference]: Without dead ends: 415 [2024-11-22 12:00:05,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:00:05,028 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 236 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:05,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1060 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:00:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-22 12:00:05,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 381. [2024-11-22 12:00:05,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 311 states have (on average 1.5916398713826367) internal successors, (495), 311 states have internal predecessors, (495), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-22 12:00:05,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 631 transitions. [2024-11-22 12:00:05,128 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 631 transitions. Word has length 472 [2024-11-22 12:00:05,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:05,134 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 631 transitions. [2024-11-22 12:00:05,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:05,135 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 631 transitions. [2024-11-22 12:00:05,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-22 12:00:05,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:05,143 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:05,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 12:00:05,144 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:05,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:05,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1058771820, now seen corresponding path program 1 times [2024-11-22 12:00:05,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:05,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587242190] [2024-11-22 12:00:05,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:05,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:05,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:05,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587242190] [2024-11-22 12:00:05,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587242190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:05,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:05,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:00:05,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292513160] [2024-11-22 12:00:05,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:05,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:00:05,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:05,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:00:05,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:00:05,585 INFO L87 Difference]: Start difference. First operand 381 states and 631 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:05,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:05,701 INFO L93 Difference]: Finished difference Result 1137 states and 1887 transitions. [2024-11-22 12:00:05,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:00:05,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 472 [2024-11-22 12:00:05,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:05,712 INFO L225 Difference]: With dead ends: 1137 [2024-11-22 12:00:05,713 INFO L226 Difference]: Without dead ends: 759 [2024-11-22 12:00:05,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:00:05,717 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 410 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:05,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1026 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:00:05,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-11-22 12:00:05,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 757. [2024-11-22 12:00:05,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 618 states have (on average 1.5825242718446602) internal successors, (978), 618 states have internal predecessors, (978), 136 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-22 12:00:05,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1250 transitions. [2024-11-22 12:00:05,795 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1250 transitions. Word has length 472 [2024-11-22 12:00:05,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:05,799 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 1250 transitions. [2024-11-22 12:00:05,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1250 transitions. [2024-11-22 12:00:05,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-22 12:00:05,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:05,808 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:05,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:00:05,809 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:05,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:05,813 INFO L85 PathProgramCache]: Analyzing trace with hash 702398232, now seen corresponding path program 1 times [2024-11-22 12:00:05,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:05,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570245487] [2024-11-22 12:00:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:05,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:06,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:06,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570245487] [2024-11-22 12:00:06,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570245487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:06,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:06,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:00:06,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407904193] [2024-11-22 12:00:06,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:06,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:00:06,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:06,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:00:06,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:00:06,745 INFO L87 Difference]: Start difference. First operand 757 states and 1250 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:06,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:06,884 INFO L93 Difference]: Finished difference Result 1519 states and 2509 transitions. [2024-11-22 12:00:06,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:00:06,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 472 [2024-11-22 12:00:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:06,893 INFO L225 Difference]: With dead ends: 1519 [2024-11-22 12:00:06,894 INFO L226 Difference]: Without dead ends: 765 [2024-11-22 12:00:06,897 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 12:00:06,898 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 437 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:06,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1304 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:00:06,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-22 12:00:06,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2024-11-22 12:00:06,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 626 states have (on average 1.5750798722044728) internal successors, (986), 626 states have internal predecessors, (986), 136 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-22 12:00:06,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1258 transitions. [2024-11-22 12:00:06,962 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1258 transitions. Word has length 472 [2024-11-22 12:00:06,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:06,964 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1258 transitions. [2024-11-22 12:00:06,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:06,966 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1258 transitions. [2024-11-22 12:00:06,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-22 12:00:06,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:06,973 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:06,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:00:06,973 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:06,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:06,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1675222119, now seen corresponding path program 1 times [2024-11-22 12:00:06,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:06,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764684445] [2024-11-22 12:00:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:06,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:07,833 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:07,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:07,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764684445] [2024-11-22 12:00:07,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764684445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:07,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:07,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:00:07,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265712053] [2024-11-22 12:00:07,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:07,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:00:07,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:07,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:00:07,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:00:07,838 INFO L87 Difference]: Start difference. First operand 765 states and 1258 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:08,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:08,250 INFO L93 Difference]: Finished difference Result 2363 states and 3869 transitions. [2024-11-22 12:00:08,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:00:08,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 473 [2024-11-22 12:00:08,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:08,261 INFO L225 Difference]: With dead ends: 2363 [2024-11-22 12:00:08,261 INFO L226 Difference]: Without dead ends: 1601 [2024-11-22 12:00:08,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:00:08,267 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 551 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:08,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1489 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:00:08,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-22 12:00:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1307. [2024-11-22 12:00:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 1030 states have (on average 1.5398058252427185) internal successors, (1586), 1030 states have internal predecessors, (1586), 272 states have call successors, (272), 4 states have call predecessors, (272), 4 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2024-11-22 12:00:08,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 2130 transitions. [2024-11-22 12:00:08,395 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 2130 transitions. Word has length 473 [2024-11-22 12:00:08,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:08,397 INFO L471 AbstractCegarLoop]: Abstraction has 1307 states and 2130 transitions. [2024-11-22 12:00:08,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:08,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 2130 transitions. [2024-11-22 12:00:08,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-22 12:00:08,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:08,405 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:08,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:00:08,405 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:08,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:08,406 INFO L85 PathProgramCache]: Analyzing trace with hash -246157759, now seen corresponding path program 1 times [2024-11-22 12:00:08,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:08,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100196380] [2024-11-22 12:00:08,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:08,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:08,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:08,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100196380] [2024-11-22 12:00:08,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100196380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:08,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:08,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:00:08,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847504019] [2024-11-22 12:00:08,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:08,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:00:08,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:08,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:00:08,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:00:08,840 INFO L87 Difference]: Start difference. First operand 1307 states and 2130 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:09,286 INFO L93 Difference]: Finished difference Result 3280 states and 5327 transitions. [2024-11-22 12:00:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:00:09,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 475 [2024-11-22 12:00:09,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:09,300 INFO L225 Difference]: With dead ends: 3280 [2024-11-22 12:00:09,301 INFO L226 Difference]: Without dead ends: 1976 [2024-11-22 12:00:09,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:00:09,308 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 437 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:09,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1287 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:00:09,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2024-11-22 12:00:09,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1830. [2024-11-22 12:00:09,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1484 states have (on average 1.5559299191374663) internal successors, (2309), 1484 states have internal predecessors, (2309), 340 states have call successors, (340), 5 states have call predecessors, (340), 5 states have return successors, (340), 340 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-22 12:00:09,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2989 transitions. [2024-11-22 12:00:09,508 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2989 transitions. Word has length 475 [2024-11-22 12:00:09,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:09,509 INFO L471 AbstractCegarLoop]: Abstraction has 1830 states and 2989 transitions. [2024-11-22 12:00:09,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2989 transitions. [2024-11-22 12:00:09,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-22 12:00:09,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:09,517 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:09,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:00:09,517 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:09,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:09,518 INFO L85 PathProgramCache]: Analyzing trace with hash 360201177, now seen corresponding path program 1 times [2024-11-22 12:00:09,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:09,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121941762] [2024-11-22 12:00:09,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:09,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:10,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:10,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121941762] [2024-11-22 12:00:10,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121941762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:10,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:10,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:00:10,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914115762] [2024-11-22 12:00:10,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:10,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:00:10,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:10,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:00:10,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:00:10,103 INFO L87 Difference]: Start difference. First operand 1830 states and 2989 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:10,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:10,494 INFO L93 Difference]: Finished difference Result 2924 states and 4761 transitions. [2024-11-22 12:00:10,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:00:10,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 476 [2024-11-22 12:00:10,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:10,507 INFO L225 Difference]: With dead ends: 2924 [2024-11-22 12:00:10,508 INFO L226 Difference]: Without dead ends: 1978 [2024-11-22 12:00:10,512 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 12:00:10,513 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 438 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:10,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1713 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:00:10,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-11-22 12:00:10,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1832. [2024-11-22 12:00:10,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1832 states, 1486 states have (on average 1.5551816958277254) internal successors, (2311), 1486 states have internal predecessors, (2311), 340 states have call successors, (340), 5 states have call predecessors, (340), 5 states have return successors, (340), 340 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-22 12:00:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2991 transitions. [2024-11-22 12:00:10,674 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2991 transitions. Word has length 476 [2024-11-22 12:00:10,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:10,675 INFO L471 AbstractCegarLoop]: Abstraction has 1832 states and 2991 transitions. [2024-11-22 12:00:10,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2991 transitions. [2024-11-22 12:00:10,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-22 12:00:10,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:10,680 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:10,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:00:10,681 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:10,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:10,681 INFO L85 PathProgramCache]: Analyzing trace with hash 437101975, now seen corresponding path program 1 times [2024-11-22 12:00:10,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:10,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888744583] [2024-11-22 12:00:10,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:10,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:11,471 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:11,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:11,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888744583] [2024-11-22 12:00:11,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888744583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:11,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:11,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:00:11,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787311961] [2024-11-22 12:00:11,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:11,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:00:11,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:11,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:00:11,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:00:11,476 INFO L87 Difference]: Start difference. First operand 1832 states and 2991 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:11,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:11,835 INFO L93 Difference]: Finished difference Result 3684 states and 5986 transitions. [2024-11-22 12:00:11,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:00:11,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 476 [2024-11-22 12:00:11,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:11,846 INFO L225 Difference]: With dead ends: 3684 [2024-11-22 12:00:11,846 INFO L226 Difference]: Without dead ends: 1977 [2024-11-22 12:00:11,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:00:11,852 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 333 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:11,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1307 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:00:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2024-11-22 12:00:11,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1831. [2024-11-22 12:00:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1831 states, 1485 states have (on average 1.554882154882155) internal successors, (2309), 1485 states have internal predecessors, (2309), 340 states have call successors, (340), 5 states have call predecessors, (340), 5 states have return successors, (340), 340 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-22 12:00:11,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1831 states to 1831 states and 2989 transitions. [2024-11-22 12:00:11,988 INFO L78 Accepts]: Start accepts. Automaton has 1831 states and 2989 transitions. Word has length 476 [2024-11-22 12:00:11,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:11,988 INFO L471 AbstractCegarLoop]: Abstraction has 1831 states and 2989 transitions. [2024-11-22 12:00:11,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:11,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1831 states and 2989 transitions. [2024-11-22 12:00:11,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-11-22 12:00:11,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:11,994 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:11,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:00:11,994 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:11,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:11,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1152367465, now seen corresponding path program 1 times [2024-11-22 12:00:11,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:11,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409666432] [2024-11-22 12:00:11,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:11,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:12,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:12,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409666432] [2024-11-22 12:00:12,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409666432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:12,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:12,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:00:12,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350407513] [2024-11-22 12:00:12,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:12,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:00:12,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:12,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:00:12,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:00:12,620 INFO L87 Difference]: Start difference. First operand 1831 states and 2989 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:13,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:13,229 INFO L93 Difference]: Finished difference Result 3463 states and 5617 transitions. [2024-11-22 12:00:13,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:00:13,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 476 [2024-11-22 12:00:13,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:13,241 INFO L225 Difference]: With dead ends: 3463 [2024-11-22 12:00:13,241 INFO L226 Difference]: Without dead ends: 1975 [2024-11-22 12:00:13,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:00:13,247 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 368 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:13,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1273 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:00:13,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2024-11-22 12:00:13,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1833. [2024-11-22 12:00:13,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1487 states have (on average 1.5527908540685944) internal successors, (2309), 1487 states have internal predecessors, (2309), 340 states have call successors, (340), 5 states have call predecessors, (340), 5 states have return successors, (340), 340 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-22 12:00:13,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2989 transitions. [2024-11-22 12:00:13,449 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2989 transitions. Word has length 476 [2024-11-22 12:00:13,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:13,449 INFO L471 AbstractCegarLoop]: Abstraction has 1833 states and 2989 transitions. [2024-11-22 12:00:13,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:13,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2989 transitions. [2024-11-22 12:00:13,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-22 12:00:13,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:13,457 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:13,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:00:13,458 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:13,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:13,458 INFO L85 PathProgramCache]: Analyzing trace with hash -534092474, now seen corresponding path program 1 times [2024-11-22 12:00:13,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:13,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047507166] [2024-11-22 12:00:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:13,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:13,869 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:13,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:13,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047507166] [2024-11-22 12:00:13,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047507166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:13,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:13,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:00:13,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643191782] [2024-11-22 12:00:13,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:13,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:00:13,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:13,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:00:13,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:00:13,875 INFO L87 Difference]: Start difference. First operand 1833 states and 2989 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:13,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:13,965 INFO L93 Difference]: Finished difference Result 2787 states and 4566 transitions. [2024-11-22 12:00:13,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:00:13,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 477 [2024-11-22 12:00:13,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:13,976 INFO L225 Difference]: With dead ends: 2787 [2024-11-22 12:00:13,977 INFO L226 Difference]: Without dead ends: 1839 [2024-11-22 12:00:13,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:00:13,981 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 0 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:13,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 887 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:00:13,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2024-11-22 12:00:14,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1839. [2024-11-22 12:00:14,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1493 states have (on average 1.550569323509712) internal successors, (2315), 1493 states have internal predecessors, (2315), 340 states have call successors, (340), 5 states have call predecessors, (340), 5 states have return successors, (340), 340 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-22 12:00:14,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2995 transitions. [2024-11-22 12:00:14,092 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2995 transitions. Word has length 477 [2024-11-22 12:00:14,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:14,092 INFO L471 AbstractCegarLoop]: Abstraction has 1839 states and 2995 transitions. [2024-11-22 12:00:14,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:14,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2995 transitions. [2024-11-22 12:00:14,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-11-22 12:00:14,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:14,098 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:14,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:00:14,099 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:14,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:14,102 INFO L85 PathProgramCache]: Analyzing trace with hash -457191676, now seen corresponding path program 1 times [2024-11-22 12:00:14,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:14,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551134696] [2024-11-22 12:00:14,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:14,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:14,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551134696] [2024-11-22 12:00:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551134696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:14,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:14,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:00:14,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511592629] [2024-11-22 12:00:14,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:14,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:00:14,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:14,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:00:14,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:00:14,773 INFO L87 Difference]: Start difference. First operand 1839 states and 2995 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:15,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:15,300 INFO L93 Difference]: Finished difference Result 3473 states and 5621 transitions. [2024-11-22 12:00:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:00:15,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 477 [2024-11-22 12:00:15,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:15,312 INFO L225 Difference]: With dead ends: 3473 [2024-11-22 12:00:15,312 INFO L226 Difference]: Without dead ends: 1979 [2024-11-22 12:00:15,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:00:15,318 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 364 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:15,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1255 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:00:15,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2024-11-22 12:00:15,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1841. [2024-11-22 12:00:15,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1495 states have (on average 1.548494983277592) internal successors, (2315), 1495 states have internal predecessors, (2315), 340 states have call successors, (340), 5 states have call predecessors, (340), 5 states have return successors, (340), 340 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-22 12:00:15,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2995 transitions. [2024-11-22 12:00:15,524 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2995 transitions. Word has length 477 [2024-11-22 12:00:15,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:15,525 INFO L471 AbstractCegarLoop]: Abstraction has 1841 states and 2995 transitions. [2024-11-22 12:00:15,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:15,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2995 transitions. [2024-11-22 12:00:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-11-22 12:00:15,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:15,530 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:15,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:00:15,531 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:15,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:15,534 INFO L85 PathProgramCache]: Analyzing trace with hash 969923964, now seen corresponding path program 1 times [2024-11-22 12:00:15,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:15,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24104927] [2024-11-22 12:00:15,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:15,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:16,587 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:16,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:16,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24104927] [2024-11-22 12:00:16,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24104927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:16,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:16,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:00:16,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871534175] [2024-11-22 12:00:16,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:16,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:00:16,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:16,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:00:16,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:00:16,591 INFO L87 Difference]: Start difference. First operand 1841 states and 2995 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:17,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:17,569 INFO L93 Difference]: Finished difference Result 5957 states and 9711 transitions. [2024-11-22 12:00:17,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:00:17,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 478 [2024-11-22 12:00:17,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:17,590 INFO L225 Difference]: With dead ends: 5957 [2024-11-22 12:00:17,590 INFO L226 Difference]: Without dead ends: 4505 [2024-11-22 12:00:17,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:00:17,596 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 631 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:17,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 2661 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 12:00:17,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4505 states. [2024-11-22 12:00:17,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4505 to 3530. [2024-11-22 12:00:17,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 2908 states have (on average 1.5656808803301239) internal successors, (4553), 2908 states have internal predecessors, (4553), 612 states have call successors, (612), 9 states have call predecessors, (612), 9 states have return successors, (612), 612 states have call predecessors, (612), 612 states have call successors, (612) [2024-11-22 12:00:17,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 5777 transitions. [2024-11-22 12:00:17,907 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 5777 transitions. Word has length 478 [2024-11-22 12:00:17,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:17,908 INFO L471 AbstractCegarLoop]: Abstraction has 3530 states and 5777 transitions. [2024-11-22 12:00:17,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:17,909 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 5777 transitions. [2024-11-22 12:00:17,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-22 12:00:17,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:17,912 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:17,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:00:17,913 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:17,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:17,913 INFO L85 PathProgramCache]: Analyzing trace with hash -28918574, now seen corresponding path program 1 times [2024-11-22 12:00:17,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:17,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452422701] [2024-11-22 12:00:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:17,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:20,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:20,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452422701] [2024-11-22 12:00:20,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452422701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:20,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:20,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:00:20,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204910776] [2024-11-22 12:00:20,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:20,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:00:20,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:20,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:00:20,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:00:20,141 INFO L87 Difference]: Start difference. First operand 3530 states and 5777 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:22,311 INFO L93 Difference]: Finished difference Result 9982 states and 16340 transitions. [2024-11-22 12:00:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:00:22,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 479 [2024-11-22 12:00:22,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:22,347 INFO L225 Difference]: With dead ends: 9982 [2024-11-22 12:00:22,347 INFO L226 Difference]: Without dead ends: 6862 [2024-11-22 12:00:22,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2024-11-22 12:00:22,360 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 2206 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 955 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 955 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:22,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 4255 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [955 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 12:00:22,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6862 states. [2024-11-22 12:00:22,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6862 to 4261. [2024-11-22 12:00:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4261 states, 3639 states have (on average 1.558944765045342) internal successors, (5673), 3639 states have internal predecessors, (5673), 612 states have call successors, (612), 9 states have call predecessors, (612), 9 states have return successors, (612), 612 states have call predecessors, (612), 612 states have call successors, (612) [2024-11-22 12:00:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4261 states to 4261 states and 6897 transitions. [2024-11-22 12:00:22,893 INFO L78 Accepts]: Start accepts. Automaton has 4261 states and 6897 transitions. Word has length 479 [2024-11-22 12:00:22,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:22,896 INFO L471 AbstractCegarLoop]: Abstraction has 4261 states and 6897 transitions. [2024-11-22 12:00:22,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:22,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4261 states and 6897 transitions. [2024-11-22 12:00:22,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-22 12:00:22,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:22,901 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:22,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:00:22,901 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:22,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:22,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1461832499, now seen corresponding path program 1 times [2024-11-22 12:00:22,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:22,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238311372] [2024-11-22 12:00:22,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:22,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:25,548 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 42 proven. 159 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2024-11-22 12:00:25,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:25,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238311372] [2024-11-22 12:00:25,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238311372] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:00:25,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796262897] [2024-11-22 12:00:25,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:25,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:00:25,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:00:25,552 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 12:00:25,554 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 12:00:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:25,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 12:00:25,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:00:27,246 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 3063 proven. 159 refuted. 0 times theorem prover too weak. 5890 trivial. 0 not checked. [2024-11-22 12:00:27,247 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:00:27,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 42 proven. 159 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2024-11-22 12:00:27,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796262897] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:00:27,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:00:27,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 18 [2024-11-22 12:00:27,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166439623] [2024-11-22 12:00:27,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:00:27,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 12:00:27,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:27,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 12:00:27,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:00:27,738 INFO L87 Difference]: Start difference. First operand 4261 states and 6897 transitions. Second operand has 18 states, 18 states have (on average 13.38888888888889) internal successors, (241), 18 states have internal predecessors, (241), 5 states have call successors, (204), 3 states have call predecessors, (204), 6 states have return successors, (204), 5 states have call predecessors, (204), 5 states have call successors, (204) [2024-11-22 12:00:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:30,169 INFO L93 Difference]: Finished difference Result 12931 states and 20913 transitions. [2024-11-22 12:00:30,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 12:00:30,170 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.38888888888889) internal successors, (241), 18 states have internal predecessors, (241), 5 states have call successors, (204), 3 states have call predecessors, (204), 6 states have return successors, (204), 5 states have call predecessors, (204), 5 states have call successors, (204) Word has length 480 [2024-11-22 12:00:30,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:30,207 INFO L225 Difference]: With dead ends: 12931 [2024-11-22 12:00:30,207 INFO L226 Difference]: Without dead ends: 8790 [2024-11-22 12:00:30,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 978 GetRequests, 952 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2024-11-22 12:00:30,224 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 2174 mSDsluCounter, 3226 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 3564 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:30,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 3564 Invalid, 2628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 2338 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 12:00:30,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8790 states. [2024-11-22 12:00:31,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8790 to 7598. [2024-11-22 12:00:31,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7598 states, 6415 states have (on average 1.5529228371005457) internal successors, (9962), 6415 states have internal predecessors, (9962), 1156 states have call successors, (1156), 26 states have call predecessors, (1156), 26 states have return successors, (1156), 1156 states have call predecessors, (1156), 1156 states have call successors, (1156) [2024-11-22 12:00:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7598 states to 7598 states and 12274 transitions. [2024-11-22 12:00:31,211 INFO L78 Accepts]: Start accepts. Automaton has 7598 states and 12274 transitions. Word has length 480 [2024-11-22 12:00:31,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:31,212 INFO L471 AbstractCegarLoop]: Abstraction has 7598 states and 12274 transitions. [2024-11-22 12:00:31,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.38888888888889) internal successors, (241), 18 states have internal predecessors, (241), 5 states have call successors, (204), 3 states have call predecessors, (204), 6 states have return successors, (204), 5 states have call predecessors, (204), 5 states have call successors, (204) [2024-11-22 12:00:31,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7598 states and 12274 transitions. [2024-11-22 12:00:31,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-22 12:00:31,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:31,221 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:31,242 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 12:00:31,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-22 12:00:31,427 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:31,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:31,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1876799387, now seen corresponding path program 1 times [2024-11-22 12:00:31,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:31,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012927824] [2024-11-22 12:00:31,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:31,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-11-22 12:00:31,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:31,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012927824] [2024-11-22 12:00:31,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012927824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:31,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:31,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:00:31,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533200382] [2024-11-22 12:00:31,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:31,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:00:31,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:31,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:00:31,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:00:31,914 INFO L87 Difference]: Start difference. First operand 7598 states and 12274 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:32,696 INFO L93 Difference]: Finished difference Result 18535 states and 29880 transitions. [2024-11-22 12:00:32,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:00:32,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 481 [2024-11-22 12:00:32,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:32,731 INFO L225 Difference]: With dead ends: 18535 [2024-11-22 12:00:32,731 INFO L226 Difference]: Without dead ends: 11061 [2024-11-22 12:00:32,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:00:32,748 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 551 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:32,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1547 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:00:32,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11061 states. [2024-11-22 12:00:33,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11061 to 9281. [2024-11-22 12:00:33,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9281 states, 7820 states have (on average 1.5487212276214835) internal successors, (12111), 7820 states have internal predecessors, (12111), 1428 states have call successors, (1428), 32 states have call predecessors, (1428), 32 states have return successors, (1428), 1428 states have call predecessors, (1428), 1428 states have call successors, (1428) [2024-11-22 12:00:33,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9281 states to 9281 states and 14967 transitions. [2024-11-22 12:00:33,596 INFO L78 Accepts]: Start accepts. Automaton has 9281 states and 14967 transitions. Word has length 481 [2024-11-22 12:00:33,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:33,596 INFO L471 AbstractCegarLoop]: Abstraction has 9281 states and 14967 transitions. [2024-11-22 12:00:33,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2024-11-22 12:00:33,597 INFO L276 IsEmpty]: Start isEmpty. Operand 9281 states and 14967 transitions. [2024-11-22 12:00:33,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-22 12:00:33,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:33,603 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:33,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:00:33,603 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:33,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:33,604 INFO L85 PathProgramCache]: Analyzing trace with hash 799192995, now seen corresponding path program 1 times [2024-11-22 12:00:33,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:33,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746865662] [2024-11-22 12:00:33,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:33,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat