./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-2.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-2.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 0f4d1a0f878f07f9b07af3368e16f27fe17adbf3f533e01dbd51821a170a1e65 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 11:59:34,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 11:59:35,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 11:59:35,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 11:59:35,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 11:59:35,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 11:59:35,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 11:59:35,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 11:59:35,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 11:59:35,084 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 11:59:35,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 11:59:35,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 11:59:35,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 11:59:35,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 11:59:35,085 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 11:59:35,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 11:59:35,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 11:59:35,086 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 11:59:35,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 11:59:35,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 11:59:35,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 11:59:35,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 11:59:35,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 11:59:35,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 11:59:35,088 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 11:59:35,088 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 11:59:35,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 11:59:35,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 11:59:35,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 11:59:35,089 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 11:59:35,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 11:59:35,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 11:59:35,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:59:35,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 11:59:35,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 11:59:35,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 11:59:35,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 11:59:35,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 11:59:35,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 11:59:35,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 11:59:35,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 11:59:35,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 11:59:35,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f4d1a0f878f07f9b07af3368e16f27fe17adbf3f533e01dbd51821a170a1e65 [2024-11-22 11:59:35,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 11:59:35,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 11:59:35,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 11:59:35,319 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 11:59:35,319 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 11:59:35,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-2.i [2024-11-22 11:59:36,575 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 11:59:36,824 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 11:59:36,824 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-2.i [2024-11-22 11:59:36,842 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e0e7906/13f4bc0088224a10a2bea9480a1ff737/FLAGd03fae28a [2024-11-22 11:59:36,855 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e0e7906/13f4bc0088224a10a2bea9480a1ff737 [2024-11-22 11:59:36,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 11:59:36,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 11:59:36,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 11:59:36,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 11:59:36,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 11:59:36,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:59:36" (1/1) ... [2024-11-22 11:59:36,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a3f9ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:36, skipping insertion in model container [2024-11-22 11:59:36,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:59:36" (1/1) ... [2024-11-22 11:59:36,905 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 11:59:37,086 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-2.i[915,928] [2024-11-22 11:59:37,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 11:59:37,293 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 11:59:37,308 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-2.i[915,928] [2024-11-22 11:59:37,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 11:59:37,427 INFO L204 MainTranslator]: Completed translation [2024-11-22 11:59:37,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37 WrapperNode [2024-11-22 11:59:37,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 11:59:37,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 11:59:37,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 11:59:37,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 11:59:37,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,527 INFO L138 Inliner]: procedures = 26, calls = 86, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 705 [2024-11-22 11:59:37,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 11:59:37,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 11:59:37,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 11:59:37,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 11:59:37,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,601 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 11:59:37,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,602 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 11:59:37,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 11:59:37,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 11:59:37,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 11:59:37,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (1/1) ... [2024-11-22 11:59:37,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:59:37,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:59:37,697 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 11:59:37,699 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 11:59:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 11:59:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 11:59:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 11:59:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 11:59:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 11:59:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 11:59:37,843 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 11:59:37,844 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 11:59:38,697 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-22 11:59:38,697 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 11:59:38,715 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 11:59:38,716 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 11:59:38,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:59:38 BoogieIcfgContainer [2024-11-22 11:59:38,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 11:59:38,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 11:59:38,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 11:59:38,721 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 11:59:38,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:59:36" (1/3) ... [2024-11-22 11:59:38,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f42ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:59:38, skipping insertion in model container [2024-11-22 11:59:38,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:59:37" (2/3) ... [2024-11-22 11:59:38,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f42ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:59:38, skipping insertion in model container [2024-11-22 11:59:38,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:59:38" (3/3) ... [2024-11-22 11:59:38,723 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-2.i [2024-11-22 11:59:38,737 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 11:59:38,737 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 11:59:38,798 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 11:59:38,804 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;@68b68afa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 11:59:38,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 11:59:38,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 280 states, 204 states have (on average 1.5392156862745099) internal successors, (314), 205 states have internal predecessors, (314), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-22 11:59:38,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:38,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:38,837 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:38,838 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:38,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:38,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1161289383, now seen corresponding path program 1 times [2024-11-22 11:59:38,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:38,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309969537] [2024-11-22 11:59:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:38,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:39,501 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked. [2024-11-22 11:59:39,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:39,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309969537] [2024-11-22 11:59:39,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309969537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 11:59:39,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761627171] [2024-11-22 11:59:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:39,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 11:59:39,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:59:39,506 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 11:59:39,507 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 11:59:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:39,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 11:59:39,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 11:59:39,874 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked. [2024-11-22 11:59:39,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 11:59:39,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761627171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:39,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 11:59:39,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 11:59:39,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422479085] [2024-11-22 11:59:39,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:39,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 11:59:39,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:39,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 11:59:39,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 11:59:39,928 INFO L87 Difference]: Start difference. First operand has 280 states, 204 states have (on average 1.5392156862745099) internal successors, (314), 205 states have internal predecessors, (314), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) [2024-11-22 11:59:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:39,996 INFO L93 Difference]: Finished difference Result 553 states and 987 transitions. [2024-11-22 11:59:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 11:59:39,999 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) Word has length 494 [2024-11-22 11:59:39,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:40,007 INFO L225 Difference]: With dead ends: 553 [2024-11-22 11:59:40,009 INFO L226 Difference]: Without dead ends: 276 [2024-11-22 11:59:40,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 11:59:40,018 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:40,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:59:40,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-22 11:59:40,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-11-22 11:59:40,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 201 states have (on average 1.527363184079602) internal successors, (307), 201 states have internal predecessors, (307), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-22 11:59:40,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 453 transitions. [2024-11-22 11:59:40,086 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 453 transitions. Word has length 494 [2024-11-22 11:59:40,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:40,086 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 453 transitions. [2024-11-22 11:59:40,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) [2024-11-22 11:59:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 453 transitions. [2024-11-22 11:59:40,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:40,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:40,099 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:40,108 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 11:59:40,302 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,SelfDestructingSolverStorable0 [2024-11-22 11:59:40,303 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:40,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:40,304 INFO L85 PathProgramCache]: Analyzing trace with hash 601828571, now seen corresponding path program 1 times [2024-11-22 11:59:40,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:40,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976684299] [2024-11-22 11:59:40,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:40,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:40,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:40,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976684299] [2024-11-22 11:59:40,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976684299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:40,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:40,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:59:40,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480924237] [2024-11-22 11:59:40,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:40,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:59:40,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:40,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:59:40,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:59:40,746 INFO L87 Difference]: Start difference. First operand 276 states and 453 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:40,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:40,842 INFO L93 Difference]: Finished difference Result 821 states and 1351 transitions. [2024-11-22 11:59:40,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:59:40,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 11:59:40,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:40,851 INFO L225 Difference]: With dead ends: 821 [2024-11-22 11:59:40,853 INFO L226 Difference]: Without dead ends: 548 [2024-11-22 11:59:40,854 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 11:59:40,856 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 446 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:40,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1125 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:59:40,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-22 11:59:40,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 277. [2024-11-22 11:59:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 202 states have (on average 1.5247524752475248) internal successors, (308), 202 states have internal predecessors, (308), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-22 11:59:40,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 454 transitions. [2024-11-22 11:59:40,896 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 454 transitions. Word has length 494 [2024-11-22 11:59:40,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:40,900 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 454 transitions. [2024-11-22 11:59:40,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:40,901 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 454 transitions. [2024-11-22 11:59:40,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:40,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:40,908 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:40,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 11:59:40,909 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:40,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:40,910 INFO L85 PathProgramCache]: Analyzing trace with hash 656221469, now seen corresponding path program 1 times [2024-11-22 11:59:40,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:40,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697226059] [2024-11-22 11:59:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:40,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:41,227 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:41,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:41,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697226059] [2024-11-22 11:59:41,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697226059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:41,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:41,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:59:41,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891306677] [2024-11-22 11:59:41,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:41,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:59:41,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:41,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:59:41,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:59:41,230 INFO L87 Difference]: Start difference. First operand 277 states and 454 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:41,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:41,296 INFO L93 Difference]: Finished difference Result 813 states and 1336 transitions. [2024-11-22 11:59:41,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:59:41,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 11:59:41,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:41,301 INFO L225 Difference]: With dead ends: 813 [2024-11-22 11:59:41,301 INFO L226 Difference]: Without dead ends: 539 [2024-11-22 11:59:41,302 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 11:59:41,302 INFO L432 NwaCegarLoop]: 678 mSDtfsCounter, 427 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:41,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1116 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:59:41,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-22 11:59:41,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 339. [2024-11-22 11:59:41,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 264 states have (on average 1.5795454545454546) internal successors, (417), 264 states have internal predecessors, (417), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-22 11:59:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 563 transitions. [2024-11-22 11:59:41,320 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 563 transitions. Word has length 494 [2024-11-22 11:59:41,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:41,321 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 563 transitions. [2024-11-22 11:59:41,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:41,322 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 563 transitions. [2024-11-22 11:59:41,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:41,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:41,327 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:41,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 11:59:41,327 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:41,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:41,328 INFO L85 PathProgramCache]: Analyzing trace with hash 696896219, now seen corresponding path program 1 times [2024-11-22 11:59:41,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:41,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365330687] [2024-11-22 11:59:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:41,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:41,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:41,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365330687] [2024-11-22 11:59:41,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365330687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:41,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:41,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:59:41,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453196844] [2024-11-22 11:59:41,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:41,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:59:41,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:41,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:59:41,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:59:41,574 INFO L87 Difference]: Start difference. First operand 339 states and 563 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:41,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:41,624 INFO L93 Difference]: Finished difference Result 987 states and 1641 transitions. [2024-11-22 11:59:41,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:59:41,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 11:59:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:41,629 INFO L225 Difference]: With dead ends: 987 [2024-11-22 11:59:41,629 INFO L226 Difference]: Without dead ends: 651 [2024-11-22 11:59:41,630 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 11:59:41,630 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 427 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:41,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 883 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:59:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-22 11:59:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 341. [2024-11-22 11:59:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 266 states have (on average 1.5751879699248121) internal successors, (419), 266 states have internal predecessors, (419), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-22 11:59:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 565 transitions. [2024-11-22 11:59:41,646 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 565 transitions. Word has length 494 [2024-11-22 11:59:41,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:41,647 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 565 transitions. [2024-11-22 11:59:41,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 565 transitions. [2024-11-22 11:59:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:41,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:41,651 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:41,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 11:59:41,652 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:41,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:41,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1049984601, now seen corresponding path program 1 times [2024-11-22 11:59:41,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:41,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679202248] [2024-11-22 11:59:41,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:41,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:42,511 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:42,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:42,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679202248] [2024-11-22 11:59:42,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679202248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:42,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:42,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:59:42,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105407622] [2024-11-22 11:59:42,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:42,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:59:42,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:42,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:59:42,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:59:42,514 INFO L87 Difference]: Start difference. First operand 341 states and 565 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:42,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:42,714 INFO L93 Difference]: Finished difference Result 1071 states and 1768 transitions. [2024-11-22 11:59:42,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:59:42,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 11:59:42,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:42,719 INFO L225 Difference]: With dead ends: 1071 [2024-11-22 11:59:42,719 INFO L226 Difference]: Without dead ends: 733 [2024-11-22 11:59:42,720 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 11:59:42,721 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 575 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:42,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1364 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 11:59:42,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-22 11:59:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 564. [2024-11-22 11:59:42,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 470 states have (on average 1.5957446808510638) internal successors, (750), 471 states have internal predecessors, (750), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 90 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-22 11:59:42,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 932 transitions. [2024-11-22 11:59:42,742 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 932 transitions. Word has length 494 [2024-11-22 11:59:42,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:42,743 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 932 transitions. [2024-11-22 11:59:42,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:42,743 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 932 transitions. [2024-11-22 11:59:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:42,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:42,746 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:42,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 11:59:42,746 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:42,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:42,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1873175397, now seen corresponding path program 1 times [2024-11-22 11:59:42,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:42,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171996732] [2024-11-22 11:59:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:42,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:43,697 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:43,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:43,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171996732] [2024-11-22 11:59:43,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171996732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:43,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:43,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:59:43,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824108378] [2024-11-22 11:59:43,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:43,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:59:43,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:43,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:59:43,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:59:43,704 INFO L87 Difference]: Start difference. First operand 564 states and 932 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:44,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:44,076 INFO L93 Difference]: Finished difference Result 1780 states and 2927 transitions. [2024-11-22 11:59:44,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:59:44,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 11:59:44,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:44,084 INFO L225 Difference]: With dead ends: 1780 [2024-11-22 11:59:44,085 INFO L226 Difference]: Without dead ends: 1219 [2024-11-22 11:59:44,086 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 11:59:44,088 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 523 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:44,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1841 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 11:59:44,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-11-22 11:59:44,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1167. [2024-11-22 11:59:44,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 980 states have (on average 1.5918367346938775) internal successors, (1560), 982 states have internal predecessors, (1560), 182 states have call successors, (182), 4 states have call predecessors, (182), 4 states have return successors, (182), 180 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-22 11:59:44,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1924 transitions. [2024-11-22 11:59:44,152 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1924 transitions. Word has length 494 [2024-11-22 11:59:44,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:44,152 INFO L471 AbstractCegarLoop]: Abstraction has 1167 states and 1924 transitions. [2024-11-22 11:59:44,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:44,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1924 transitions. [2024-11-22 11:59:44,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:44,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:44,156 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:44,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 11:59:44,156 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:44,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:44,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1120199899, now seen corresponding path program 1 times [2024-11-22 11:59:44,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:44,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467319083] [2024-11-22 11:59:44,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:44,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:45,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:45,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467319083] [2024-11-22 11:59:45,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467319083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:45,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:45,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:59:45,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627122530] [2024-11-22 11:59:45,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:45,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:59:45,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:45,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:59:45,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:59:45,173 INFO L87 Difference]: Start difference. First operand 1167 states and 1924 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:45,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:45,487 INFO L93 Difference]: Finished difference Result 3314 states and 5482 transitions. [2024-11-22 11:59:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:59:45,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 11:59:45,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:45,498 INFO L225 Difference]: With dead ends: 3314 [2024-11-22 11:59:45,498 INFO L226 Difference]: Without dead ends: 2150 [2024-11-22 11:59:45,502 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 11:59:45,503 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 372 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:45,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1360 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 11:59:45,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-22 11:59:45,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 1291. [2024-11-22 11:59:45,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1030 states have (on average 1.5650485436893204) internal successors, (1612), 1032 states have internal predecessors, (1612), 255 states have call successors, (255), 5 states have call predecessors, (255), 5 states have return successors, (255), 253 states have call predecessors, (255), 255 states have call successors, (255) [2024-11-22 11:59:45,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 2122 transitions. [2024-11-22 11:59:45,585 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 2122 transitions. Word has length 494 [2024-11-22 11:59:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:45,585 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 2122 transitions. [2024-11-22 11:59:45,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:45,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 2122 transitions. [2024-11-22 11:59:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:45,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:45,603 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:45,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 11:59:45,603 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:45,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash -192936669, now seen corresponding path program 1 times [2024-11-22 11:59:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:45,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344868760] [2024-11-22 11:59:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:45,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:46,918 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:46,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:46,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344868760] [2024-11-22 11:59:46,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344868760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:46,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:46,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:59:46,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516235153] [2024-11-22 11:59:46,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:46,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:59:46,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:46,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:59:46,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:59:46,922 INFO L87 Difference]: Start difference. First operand 1291 states and 2122 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:47,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:47,224 INFO L93 Difference]: Finished difference Result 2910 states and 4783 transitions. [2024-11-22 11:59:47,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:59:47,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 11:59:47,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:47,232 INFO L225 Difference]: With dead ends: 2910 [2024-11-22 11:59:47,232 INFO L226 Difference]: Without dead ends: 1746 [2024-11-22 11:59:47,235 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 11:59:47,237 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 658 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:47,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1536 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 11:59:47,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2024-11-22 11:59:47,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1336. [2024-11-22 11:59:47,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1075 states have (on average 1.5655813953488371) internal successors, (1683), 1077 states have internal predecessors, (1683), 255 states have call successors, (255), 5 states have call predecessors, (255), 5 states have return successors, (255), 253 states have call predecessors, (255), 255 states have call successors, (255) [2024-11-22 11:59:47,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 2193 transitions. [2024-11-22 11:59:47,313 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 2193 transitions. Word has length 494 [2024-11-22 11:59:47,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:47,314 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 2193 transitions. [2024-11-22 11:59:47,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:47,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 2193 transitions. [2024-11-22 11:59:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:47,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:47,318 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:47,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 11:59:47,318 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:47,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:47,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1393136995, now seen corresponding path program 1 times [2024-11-22 11:59:47,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:47,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947724799] [2024-11-22 11:59:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:47,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:48,362 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:48,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:48,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947724799] [2024-11-22 11:59:48,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947724799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:48,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:48,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:59:48,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157703260] [2024-11-22 11:59:48,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:48,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:59:48,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:48,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:59:48,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:59:48,367 INFO L87 Difference]: Start difference. First operand 1336 states and 2193 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:48,671 INFO L93 Difference]: Finished difference Result 3651 states and 5932 transitions. [2024-11-22 11:59:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:59:48,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 11:59:48,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:48,682 INFO L225 Difference]: With dead ends: 3651 [2024-11-22 11:59:48,682 INFO L226 Difference]: Without dead ends: 2442 [2024-11-22 11:59:48,685 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 11:59:48,687 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 300 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:48,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1398 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 11:59:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2024-11-22 11:59:48,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2168. [2024-11-22 11:59:48,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 1826 states have (on average 1.575027382256298) internal successors, (2876), 1832 states have internal predecessors, (2876), 331 states have call successors, (331), 10 states have call predecessors, (331), 10 states have return successors, (331), 325 states have call predecessors, (331), 331 states have call successors, (331) [2024-11-22 11:59:48,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 3538 transitions. [2024-11-22 11:59:48,800 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 3538 transitions. Word has length 494 [2024-11-22 11:59:48,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:48,801 INFO L471 AbstractCegarLoop]: Abstraction has 2168 states and 3538 transitions. [2024-11-22 11:59:48,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:48,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 3538 transitions. [2024-11-22 11:59:48,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:48,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:48,806 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:48,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 11:59:48,806 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:48,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:48,806 INFO L85 PathProgramCache]: Analyzing trace with hash -978602267, now seen corresponding path program 1 times [2024-11-22 11:59:48,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:48,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245398489] [2024-11-22 11:59:48,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:48,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:49,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:49,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:49,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245398489] [2024-11-22 11:59:49,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245398489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:49,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:49,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 11:59:49,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287757158] [2024-11-22 11:59:49,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:49,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 11:59:49,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:49,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 11:59:49,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 11:59:49,326 INFO L87 Difference]: Start difference. First operand 2168 states and 3538 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:49,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:49,979 INFO L93 Difference]: Finished difference Result 7563 states and 12320 transitions. [2024-11-22 11:59:49,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 11:59:49,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 11:59:49,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:50,003 INFO L225 Difference]: With dead ends: 7563 [2024-11-22 11:59:50,003 INFO L226 Difference]: Without dead ends: 5526 [2024-11-22 11:59:50,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 11:59:50,011 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 680 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:50,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 2091 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 11:59:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5526 states. [2024-11-22 11:59:50,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5526 to 5522. [2024-11-22 11:59:50,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 4648 states have (on average 1.552065404475043) internal successors, (7214), 4666 states have internal predecessors, (7214), 847 states have call successors, (847), 26 states have call predecessors, (847), 26 states have return successors, (847), 829 states have call predecessors, (847), 847 states have call successors, (847) [2024-11-22 11:59:50,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 8908 transitions. [2024-11-22 11:59:50,437 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 8908 transitions. Word has length 494 [2024-11-22 11:59:50,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:50,438 INFO L471 AbstractCegarLoop]: Abstraction has 5522 states and 8908 transitions. [2024-11-22 11:59:50,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:50,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 8908 transitions. [2024-11-22 11:59:50,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:50,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:50,448 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:50,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 11:59:50,449 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:50,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:50,449 INFO L85 PathProgramCache]: Analyzing trace with hash -792297051, now seen corresponding path program 1 times [2024-11-22 11:59:50,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:50,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101625522] [2024-11-22 11:59:50,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:50,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:51,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:51,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:51,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101625522] [2024-11-22 11:59:51,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101625522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:51,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:51,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:59:51,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936040247] [2024-11-22 11:59:51,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:51,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:59:51,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:51,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:59:51,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:59:51,340 INFO L87 Difference]: Start difference. First operand 5522 states and 8908 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:59:51,873 INFO L93 Difference]: Finished difference Result 18875 states and 30390 transitions. [2024-11-22 11:59:51,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:59:51,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 11:59:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:59:51,929 INFO L225 Difference]: With dead ends: 18875 [2024-11-22 11:59:51,929 INFO L226 Difference]: Without dead ends: 13484 [2024-11-22 11:59:51,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:59:51,941 INFO L432 NwaCegarLoop]: 603 mSDtfsCounter, 485 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 11:59:51,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1544 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 11:59:51,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13484 states. [2024-11-22 11:59:52,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13484 to 11866. [2024-11-22 11:59:52,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11866 states, 10500 states have (on average 1.5737142857142856) internal successors, (16524), 10542 states have internal predecessors, (16524), 1315 states have call successors, (1315), 50 states have call predecessors, (1315), 50 states have return successors, (1315), 1273 states have call predecessors, (1315), 1315 states have call successors, (1315) [2024-11-22 11:59:52,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11866 states to 11866 states and 19154 transitions. [2024-11-22 11:59:52,389 INFO L78 Accepts]: Start accepts. Automaton has 11866 states and 19154 transitions. Word has length 494 [2024-11-22 11:59:52,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:59:52,390 INFO L471 AbstractCegarLoop]: Abstraction has 11866 states and 19154 transitions. [2024-11-22 11:59:52,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 11:59:52,391 INFO L276 IsEmpty]: Start isEmpty. Operand 11866 states and 19154 transitions. [2024-11-22 11:59:52,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 11:59:52,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:59:52,408 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:52,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 11:59:52,408 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:59:52,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:59:52,408 INFO L85 PathProgramCache]: Analyzing trace with hash -715969723, now seen corresponding path program 1 times [2024-11-22 11:59:52,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:59:52,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742057782] [2024-11-22 11:59:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:59:52,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:59:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:59:55,114 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 11:59:55,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:59:55,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742057782] [2024-11-22 11:59:55,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742057782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:59:55,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:59:55,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 11:59:55,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559385232] [2024-11-22 11:59:55,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:59:55,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 11:59:55,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:59:55,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 11:59:55,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-22 11:59:55,118 INFO L87 Difference]: Start difference. First operand 11866 states and 19154 transitions. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 3 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2024-11-22 12:00:03,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:03,451 INFO L93 Difference]: Finished difference Result 121374 states and 195592 transitions. [2024-11-22 12:00:03,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-22 12:00:03,452 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 3 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 494 [2024-11-22 12:00:03,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:03,854 INFO L225 Difference]: With dead ends: 121374 [2024-11-22 12:00:03,854 INFO L226 Difference]: Without dead ends: 109639 [2024-11-22 12:00:03,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=401, Invalid=1005, Unknown=0, NotChecked=0, Total=1406 [2024-11-22 12:00:03,901 INFO L432 NwaCegarLoop]: 910 mSDtfsCounter, 4162 mSDsluCounter, 7236 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 8146 SdHoareTripleChecker+Invalid, 4402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:03,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 8146 Invalid, 4402 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [634 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-22 12:00:03,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109639 states. [2024-11-22 12:00:05,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109639 to 51071. [2024-11-22 12:00:05,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51071 states, 48388 states have (on average 1.5946309002231958) internal successors, (77161), 48547 states have internal predecessors, (77161), 2512 states have call successors, (2512), 170 states have call predecessors, (2512), 170 states have return successors, (2512), 2353 states have call predecessors, (2512), 2512 states have call successors, (2512) [2024-11-22 12:00:06,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51071 states to 51071 states and 82185 transitions. [2024-11-22 12:00:06,024 INFO L78 Accepts]: Start accepts. Automaton has 51071 states and 82185 transitions. Word has length 494 [2024-11-22 12:00:06,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:06,025 INFO L471 AbstractCegarLoop]: Abstraction has 51071 states and 82185 transitions. [2024-11-22 12:00:06,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 3 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2024-11-22 12:00:06,025 INFO L276 IsEmpty]: Start isEmpty. Operand 51071 states and 82185 transitions. [2024-11-22 12:00:06,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 12:00:06,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:06,075 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:06,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:00:06,075 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:06,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:06,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1995833401, now seen corresponding path program 1 times [2024-11-22 12:00:06,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:06,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869202263] [2024-11-22 12:00:06,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:06,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:06,747 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 12:00:06,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:06,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869202263] [2024-11-22 12:00:06,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869202263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:06,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:06,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:00:06,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075467025] [2024-11-22 12:00:06,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:06,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:00:06,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:06,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:00:06,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:00:06,750 INFO L87 Difference]: Start difference. First operand 51071 states and 82185 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 12:00:09,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:09,028 INFO L93 Difference]: Finished difference Result 151817 states and 244270 transitions. [2024-11-22 12:00:09,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:00:09,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 12:00:09,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:09,302 INFO L225 Difference]: With dead ends: 151817 [2024-11-22 12:00:09,302 INFO L226 Difference]: Without dead ends: 100877 [2024-11-22 12:00:09,390 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 12:00:09,392 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 283 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:09,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 1207 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:00:09,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100877 states. [2024-11-22 12:00:12,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100877 to 100866. [2024-11-22 12:00:12,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100866 states, 95881 states have (on average 1.5906071067260459) internal successors, (152509), 96208 states have internal predecessors, (152509), 4645 states have call successors, (4645), 339 states have call predecessors, (4645), 339 states have return successors, (4645), 4318 states have call predecessors, (4645), 4645 states have call successors, (4645) [2024-11-22 12:00:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100866 states to 100866 states and 161799 transitions. [2024-11-22 12:00:12,774 INFO L78 Accepts]: Start accepts. Automaton has 100866 states and 161799 transitions. Word has length 494 [2024-11-22 12:00:12,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:12,775 INFO L471 AbstractCegarLoop]: Abstraction has 100866 states and 161799 transitions. [2024-11-22 12:00:12,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 12:00:12,775 INFO L276 IsEmpty]: Start isEmpty. Operand 100866 states and 161799 transitions. [2024-11-22 12:00:12,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 12:00:12,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:12,874 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:12,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:00:12,875 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:12,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:12,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1721073787, now seen corresponding path program 1 times [2024-11-22 12:00:12,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:12,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780593263] [2024-11-22 12:00:12,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:12,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 57 proven. 159 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2024-11-22 12:00:15,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:15,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780593263] [2024-11-22 12:00:15,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780593263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:00:15,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468004256] [2024-11-22 12:00:15,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:15,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:00:15,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:00:15,639 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:00:15,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:00:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:15,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 12:00:15,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:00:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 1736 proven. 390 refuted. 0 times theorem prover too weak. 8386 trivial. 0 not checked. [2024-11-22 12:00:17,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:00:18,735 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 36 proven. 393 refuted. 0 times theorem prover too weak. 10083 trivial. 0 not checked. [2024-11-22 12:00:18,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468004256] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:00:18,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:00:18,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 10] total 21 [2024-11-22 12:00:18,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313796324] [2024-11-22 12:00:18,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:00:18,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-22 12:00:18,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:18,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-22 12:00:18,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-22 12:00:18,739 INFO L87 Difference]: Start difference. First operand 100866 states and 161799 transitions. Second operand has 21 states, 21 states have (on average 15.761904761904763) internal successors, (331), 21 states have internal predecessors, (331), 8 states have call successors, (219), 4 states have call predecessors, (219), 8 states have return successors, (219), 8 states have call predecessors, (219), 8 states have call successors, (219) [2024-11-22 12:00:23,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:23,242 INFO L93 Difference]: Finished difference Result 245304 states and 393119 transitions. [2024-11-22 12:00:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-22 12:00:23,243 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 15.761904761904763) internal successors, (331), 21 states have internal predecessors, (331), 8 states have call successors, (219), 4 states have call predecessors, (219), 8 states have return successors, (219), 8 states have call predecessors, (219), 8 states have call successors, (219) Word has length 494 [2024-11-22 12:00:23,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:23,612 INFO L225 Difference]: With dead ends: 245304 [2024-11-22 12:00:23,613 INFO L226 Difference]: Without dead ends: 144573 [2024-11-22 12:00:23,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 975 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=570, Invalid=1686, Unknown=0, NotChecked=0, Total=2256 [2024-11-22 12:00:23,709 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 3468 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3468 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 2551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:23,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3468 Valid, 2156 Invalid, 2551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [958 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 12:00:23,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144573 states. [2024-11-22 12:00:27,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144573 to 123697. [2024-11-22 12:00:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123697 states, 117473 states have (on average 1.5735445591753) internal successors, (184849), 117863 states have internal predecessors, (184849), 5593 states have call successors, (5593), 630 states have call predecessors, (5593), 630 states have return successors, (5593), 5203 states have call predecessors, (5593), 5593 states have call successors, (5593) [2024-11-22 12:00:28,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123697 states to 123697 states and 196035 transitions. [2024-11-22 12:00:28,350 INFO L78 Accepts]: Start accepts. Automaton has 123697 states and 196035 transitions. Word has length 494 [2024-11-22 12:00:28,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:28,351 INFO L471 AbstractCegarLoop]: Abstraction has 123697 states and 196035 transitions. [2024-11-22 12:00:28,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 15.761904761904763) internal successors, (331), 21 states have internal predecessors, (331), 8 states have call successors, (219), 4 states have call predecessors, (219), 8 states have return successors, (219), 8 states have call predecessors, (219), 8 states have call successors, (219) [2024-11-22 12:00:28,352 INFO L276 IsEmpty]: Start isEmpty. Operand 123697 states and 196035 transitions. [2024-11-22 12:00:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 12:00:28,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:28,424 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:28,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 12:00:28,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 12:00:28,625 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:28,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:28,626 INFO L85 PathProgramCache]: Analyzing trace with hash -377737337, now seen corresponding path program 1 times [2024-11-22 12:00:28,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:28,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676039183] [2024-11-22 12:00:28,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:28,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 12:00:29,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:29,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676039183] [2024-11-22 12:00:29,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676039183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:29,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:29,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:00:29,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425085057] [2024-11-22 12:00:29,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:29,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:00:29,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:29,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:00:29,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:00:29,452 INFO L87 Difference]: Start difference. First operand 123697 states and 196035 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 12:00:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:34,983 INFO L93 Difference]: Finished difference Result 490743 states and 783635 transitions. [2024-11-22 12:00:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:00:34,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 12:00:34,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:35,725 INFO L225 Difference]: With dead ends: 490743 [2024-11-22 12:00:35,726 INFO L226 Difference]: Without dead ends: 367193 [2024-11-22 12:00:35,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:00:35,881 INFO L432 NwaCegarLoop]: 727 mSDtfsCounter, 1414 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:35,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 2294 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:00:36,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367193 states. [2024-11-22 12:00:40,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367193 to 120203. [2024-11-22 12:00:40,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120203 states, 116187 states have (on average 1.6078304801742018) internal successors, (186809), 116373 states have internal predecessors, (186809), 3589 states have call successors, (3589), 426 states have call predecessors, (3589), 426 states have return successors, (3589), 3403 states have call predecessors, (3589), 3589 states have call successors, (3589) [2024-11-22 12:00:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120203 states to 120203 states and 193987 transitions. [2024-11-22 12:00:41,004 INFO L78 Accepts]: Start accepts. Automaton has 120203 states and 193987 transitions. Word has length 494 [2024-11-22 12:00:41,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:00:41,005 INFO L471 AbstractCegarLoop]: Abstraction has 120203 states and 193987 transitions. [2024-11-22 12:00:41,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 12:00:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand 120203 states and 193987 transitions. [2024-11-22 12:00:41,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-22 12:00:41,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:00:41,075 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:41,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:00:41,076 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:00:41,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:00:41,076 INFO L85 PathProgramCache]: Analyzing trace with hash 300788271, now seen corresponding path program 1 times [2024-11-22 12:00:41,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:00:41,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605395995] [2024-11-22 12:00:41,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:00:41,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:00:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:00:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-22 12:00:41,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:00:41,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605395995] [2024-11-22 12:00:41,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605395995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:00:41,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:00:41,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:00:41,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635317224] [2024-11-22 12:00:41,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:00:41,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:00:41,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:00:41,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:00:41,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:00:41,982 INFO L87 Difference]: Start difference. First operand 120203 states and 193987 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-22 12:00:45,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:00:45,540 INFO L93 Difference]: Finished difference Result 256315 states and 411685 transitions. [2024-11-22 12:00:45,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:00:45,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2024-11-22 12:00:45,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:00:45,765 INFO L225 Difference]: With dead ends: 256315 [2024-11-22 12:00:45,765 INFO L226 Difference]: Without dead ends: 136159 [2024-11-22 12:00:45,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:00:45,864 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 385 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:00:45,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1121 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:00:45,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136159 states.