./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.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 6220e6745b3165a6fc1efc167bda264ea9d52d0f56711813aaca8387b0aa2cbd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:00:28,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:00:28,726 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:00:28,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:00:28,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:00:28,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:00:28,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:00:28,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:00:28,750 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:00:28,750 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:00:28,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:00:28,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:00:28,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:00:28,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:00:28,752 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:00:28,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:00:28,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:00:28,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:00:28,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:00:28,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:00:28,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:00:28,757 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:00:28,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:00:28,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:00:28,759 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:00:28,759 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:00:28,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:00:28,760 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:00:28,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:00:28,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:00:28,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:00:28,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:00:28,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:00:28,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:00:28,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:00:28,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:00:28,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:00:28,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:00:28,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:00:28,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:00:28,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:00:28,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:00:28,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6220e6745b3165a6fc1efc167bda264ea9d52d0f56711813aaca8387b0aa2cbd [2024-11-19 00:00:29,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:00:29,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:00:29,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:00:29,037 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:00:29,038 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:00:29,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i [2024-11-19 00:00:30,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:00:30,604 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:00:30,605 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-0.i [2024-11-19 00:00:30,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a2e54aa/043d76392b994e48a1042b2e8fcd1f33/FLAG3c65d5c80 [2024-11-19 00:00:30,641 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a2e54aa/043d76392b994e48a1042b2e8fcd1f33 [2024-11-19 00:00:30,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:00:30,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:00:30,645 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:00:30,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:00:30,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:00:30,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:00:30" (1/1) ... [2024-11-19 00:00:30,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db2e63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:30, skipping insertion in model container [2024-11-19 00:00:30,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:00:30" (1/1) ... [2024-11-19 00:00:30,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:00:30,844 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-0.i[915,928] [2024-11-19 00:00:31,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:00:31,067 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:00:31,075 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-0.i[915,928] [2024-11-19 00:00:31,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:00:31,198 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:00:31,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31 WrapperNode [2024-11-19 00:00:31,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:00:31,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:00:31,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:00:31,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:00:31,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,402 INFO L138 Inliner]: procedures = 26, calls = 74, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 720 [2024-11-19 00:00:31,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:00:31,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:00:31,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:00:31,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:00:31,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,445 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,488 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]. [2024-11-19 00:00:31,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:00:31,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:00:31,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:00:31,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:00:31,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (1/1) ... [2024-11-19 00:00:31,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:00:31,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:00:31,577 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) [2024-11-19 00:00:31,580 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 [2024-11-19 00:00:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:00:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:00:31,617 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:00:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:00:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:00:31,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:00:31,733 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:00:31,734 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:00:32,718 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-11-19 00:00:32,718 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:00:32,743 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:00:32,743 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:00:32,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:00:32 BoogieIcfgContainer [2024-11-19 00:00:32,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:00:32,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:00:32,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:00:32,751 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:00:32,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:00:30" (1/3) ... [2024-11-19 00:00:32,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea137e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:00:32, skipping insertion in model container [2024-11-19 00:00:32,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:00:31" (2/3) ... [2024-11-19 00:00:32,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea137e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:00:32, skipping insertion in model container [2024-11-19 00:00:32,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:00:32" (3/3) ... [2024-11-19 00:00:32,755 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-0.i [2024-11-19 00:00:32,769 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:00:32,769 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:00:32,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:00:32,846 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;@4263aa98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:00:32,847 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:00:32,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 290 states, 226 states have (on average 1.5575221238938053) internal successors, (352), 227 states have internal predecessors, (352), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-19 00:00:32,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-19 00:00:32,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:32,881 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:32,882 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:32,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:32,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1702141139, now seen corresponding path program 1 times [2024-11-19 00:00:32,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:32,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544444053] [2024-11-19 00:00:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:32,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:33,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2024-11-19 00:00:33,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:33,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544444053] [2024-11-19 00:00:33,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544444053] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:00:33,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287933240] [2024-11-19 00:00:33,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:33,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:00:33,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:00:33,544 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) [2024-11-19 00:00:33,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:00:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:33,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:00:33,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:00:33,955 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2024-11-19 00:00:33,956 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:00:33,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287933240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:33,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:00:33,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:00:33,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198399232] [2024-11-19 00:00:33,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:33,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:00:33,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:33,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:00:33,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:00:33,992 INFO L87 Difference]: Start difference. First operand has 290 states, 226 states have (on average 1.5575221238938053) internal successors, (352), 227 states have internal predecessors, (352), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-19 00:00:34,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:34,037 INFO L93 Difference]: Finished difference Result 573 states and 1003 transitions. [2024-11-19 00:00:34,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:00:34,040 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) Word has length 429 [2024-11-19 00:00:34,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:34,052 INFO L225 Difference]: With dead ends: 573 [2024-11-19 00:00:34,053 INFO L226 Difference]: Without dead ends: 286 [2024-11-19 00:00:34,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:00:34,064 INFO L432 NwaCegarLoop]: 466 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, 466 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 [2024-11-19 00:00:34,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:00:34,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-19 00:00:34,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-11-19 00:00:34,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 223 states have (on average 1.5426008968609866) internal successors, (344), 223 states have internal predecessors, (344), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-19 00:00:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 466 transitions. [2024-11-19 00:00:34,133 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 466 transitions. Word has length 429 [2024-11-19 00:00:34,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:34,133 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 466 transitions. [2024-11-19 00:00:34,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-19 00:00:34,134 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 466 transitions. [2024-11-19 00:00:34,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-19 00:00:34,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:34,145 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:34,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 00:00:34,346 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 [2024-11-19 00:00:34,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:34,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:34,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1423623589, now seen corresponding path program 1 times [2024-11-19 00:00:34,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:34,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379096301] [2024-11-19 00:00:34,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:34,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:00:34,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:34,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379096301] [2024-11-19 00:00:34,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379096301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:34,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:00:34,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:00:34,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049280710] [2024-11-19 00:00:34,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:34,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:00:34,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:34,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:00:34,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:00:34,738 INFO L87 Difference]: Start difference. First operand 286 states and 466 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:34,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:34,825 INFO L93 Difference]: Finished difference Result 733 states and 1194 transitions. [2024-11-19 00:00:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:00:34,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-19 00:00:34,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:34,833 INFO L225 Difference]: With dead ends: 733 [2024-11-19 00:00:34,833 INFO L226 Difference]: Without dead ends: 450 [2024-11-19 00:00:34,834 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 [2024-11-19 00:00:34,835 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 262 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:34,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1030 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:00:34,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-19 00:00:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 447. [2024-11-19 00:00:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 373 states have (on average 1.5656836461126005) internal successors, (584), 374 states have internal predecessors, (584), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-19 00:00:34,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 726 transitions. [2024-11-19 00:00:34,878 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 726 transitions. Word has length 429 [2024-11-19 00:00:34,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:34,879 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 726 transitions. [2024-11-19 00:00:34,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:34,880 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 726 transitions. [2024-11-19 00:00:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-19 00:00:34,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:34,904 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:34,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:00:34,905 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:34,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:34,907 INFO L85 PathProgramCache]: Analyzing trace with hash 909769049, now seen corresponding path program 1 times [2024-11-19 00:00:34,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:34,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86547067] [2024-11-19 00:00:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:34,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:35,194 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:00:35,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:35,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86547067] [2024-11-19 00:00:35,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86547067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:35,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:00:35,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:00:35,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671160270] [2024-11-19 00:00:35,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:35,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:00:35,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:35,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:00:35,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:00:35,199 INFO L87 Difference]: Start difference. First operand 447 states and 726 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:35,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:35,282 INFO L93 Difference]: Finished difference Result 1230 states and 1994 transitions. [2024-11-19 00:00:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:00:35,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-19 00:00:35,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:35,290 INFO L225 Difference]: With dead ends: 1230 [2024-11-19 00:00:35,290 INFO L226 Difference]: Without dead ends: 786 [2024-11-19 00:00:35,292 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 [2024-11-19 00:00:35,293 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 288 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:35,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 1134 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:00:35,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-19 00:00:35,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 782. [2024-11-19 00:00:35,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 694 states have (on average 1.5778097982708934) internal successors, (1095), 697 states have internal predecessors, (1095), 83 states have call successors, (83), 4 states have call predecessors, (83), 4 states have return successors, (83), 80 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-19 00:00:35,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1261 transitions. [2024-11-19 00:00:35,336 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1261 transitions. Word has length 429 [2024-11-19 00:00:35,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:35,338 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1261 transitions. [2024-11-19 00:00:35,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:35,338 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1261 transitions. [2024-11-19 00:00:35,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-19 00:00:35,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:35,345 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:35,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:00:35,345 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:35,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:35,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1053072221, now seen corresponding path program 1 times [2024-11-19 00:00:35,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:35,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851657428] [2024-11-19 00:00:35,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:35,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:00:35,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:35,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851657428] [2024-11-19 00:00:35,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851657428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:35,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:00:35,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:00:35,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588416943] [2024-11-19 00:00:35,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:35,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:00:35,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:35,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:00:35,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:00:35,630 INFO L87 Difference]: Start difference. First operand 782 states and 1261 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:35,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:35,705 INFO L93 Difference]: Finished difference Result 2210 states and 3560 transitions. [2024-11-19 00:00:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:00:35,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-19 00:00:35,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:35,717 INFO L225 Difference]: With dead ends: 2210 [2024-11-19 00:00:35,718 INFO L226 Difference]: Without dead ends: 1431 [2024-11-19 00:00:35,720 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 [2024-11-19 00:00:35,722 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 263 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:35,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 902 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:00:35,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2024-11-19 00:00:35,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1428. [2024-11-19 00:00:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1300 states have (on average 1.583076923076923) internal successors, (2058), 1307 states have internal predecessors, (2058), 119 states have call successors, (119), 8 states have call predecessors, (119), 8 states have return successors, (119), 112 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-19 00:00:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2296 transitions. [2024-11-19 00:00:35,779 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2296 transitions. Word has length 429 [2024-11-19 00:00:35,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:35,781 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 2296 transitions. [2024-11-19 00:00:35,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:35,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2296 transitions. [2024-11-19 00:00:35,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-19 00:00:35,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:35,788 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:35,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:00:35,789 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:35,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:35,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1946558559, now seen corresponding path program 1 times [2024-11-19 00:00:35,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:35,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735913945] [2024-11-19 00:00:35,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:35,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:37,040 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:00:37,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:37,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735913945] [2024-11-19 00:00:37,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735913945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:37,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:00:37,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:00:37,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334426277] [2024-11-19 00:00:37,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:37,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:00:37,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:37,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:00:37,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:00:37,043 INFO L87 Difference]: Start difference. First operand 1428 states and 2296 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:37,475 INFO L93 Difference]: Finished difference Result 4797 states and 7678 transitions. [2024-11-19 00:00:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:00:37,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-19 00:00:37,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:37,490 INFO L225 Difference]: With dead ends: 4797 [2024-11-19 00:00:37,491 INFO L226 Difference]: Without dead ends: 3372 [2024-11-19 00:00:37,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:00:37,495 INFO L432 NwaCegarLoop]: 824 mSDtfsCounter, 792 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:37,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1889 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:00:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2024-11-19 00:00:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 2845. [2024-11-19 00:00:37,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2845 states, 2627 states have (on average 1.5812714122573277) internal successors, (4154), 2643 states have internal predecessors, (4154), 195 states have call successors, (195), 22 states have call predecessors, (195), 22 states have return successors, (195), 179 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-19 00:00:37,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2845 states to 2845 states and 4544 transitions. [2024-11-19 00:00:37,593 INFO L78 Accepts]: Start accepts. Automaton has 2845 states and 4544 transitions. Word has length 429 [2024-11-19 00:00:37,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:37,594 INFO L471 AbstractCegarLoop]: Abstraction has 2845 states and 4544 transitions. [2024-11-19 00:00:37,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2845 states and 4544 transitions. [2024-11-19 00:00:37,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-19 00:00:37,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:37,604 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:37,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:00:37,605 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:37,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:37,606 INFO L85 PathProgramCache]: Analyzing trace with hash 403438962, now seen corresponding path program 1 times [2024-11-19 00:00:37,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:37,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195897830] [2024-11-19 00:00:37,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:37,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:00:37,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:37,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195897830] [2024-11-19 00:00:37,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195897830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:37,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:00:37,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:00:37,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844129650] [2024-11-19 00:00:37,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:37,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:00:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:37,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:00:37,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:00:37,790 INFO L87 Difference]: Start difference. First operand 2845 states and 4544 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:37,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:37,939 INFO L93 Difference]: Finished difference Result 7931 states and 12774 transitions. [2024-11-19 00:00:37,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:00:37,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-19 00:00:37,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:37,957 INFO L225 Difference]: With dead ends: 7931 [2024-11-19 00:00:37,957 INFO L226 Difference]: Without dead ends: 5113 [2024-11-19 00:00:37,961 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 [2024-11-19 00:00:37,962 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 292 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:37,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 888 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:00:37,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5113 states. [2024-11-19 00:00:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5113 to 4695. [2024-11-19 00:00:38,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4695 states, 4477 states have (on average 1.6216216216216217) internal successors, (7260), 4493 states have internal predecessors, (7260), 195 states have call successors, (195), 22 states have call predecessors, (195), 22 states have return successors, (195), 179 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-19 00:00:38,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4695 states to 4695 states and 7650 transitions. [2024-11-19 00:00:38,085 INFO L78 Accepts]: Start accepts. Automaton has 4695 states and 7650 transitions. Word has length 429 [2024-11-19 00:00:38,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:38,086 INFO L471 AbstractCegarLoop]: Abstraction has 4695 states and 7650 transitions. [2024-11-19 00:00:38,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:38,087 INFO L276 IsEmpty]: Start isEmpty. Operand 4695 states and 7650 transitions. [2024-11-19 00:00:38,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-19 00:00:38,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:38,097 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:38,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:00:38,097 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:38,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:38,098 INFO L85 PathProgramCache]: Analyzing trace with hash 643678708, now seen corresponding path program 1 times [2024-11-19 00:00:38,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:38,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602791307] [2024-11-19 00:00:38,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:38,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:39,187 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:00:39,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:39,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602791307] [2024-11-19 00:00:39,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602791307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:39,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:00:39,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:00:39,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865562349] [2024-11-19 00:00:39,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:39,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:00:39,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:39,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:00:39,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:00:39,191 INFO L87 Difference]: Start difference. First operand 4695 states and 7650 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:39,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:39,618 INFO L93 Difference]: Finished difference Result 16983 states and 27717 transitions. [2024-11-19 00:00:39,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:00:39,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-19 00:00:39,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:39,679 INFO L225 Difference]: With dead ends: 16983 [2024-11-19 00:00:39,680 INFO L226 Difference]: Without dead ends: 12315 [2024-11-19 00:00:39,697 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 [2024-11-19 00:00:39,698 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 657 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:39,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1619 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:00:39,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12315 states. [2024-11-19 00:00:39,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12315 to 8643. [2024-11-19 00:00:39,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8643 states, 8361 states have (on average 1.639038392536778) internal successors, (13704), 8385 states have internal predecessors, (13704), 251 states have call successors, (251), 30 states have call predecessors, (251), 30 states have return successors, (251), 227 states have call predecessors, (251), 251 states have call successors, (251) [2024-11-19 00:00:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8643 states to 8643 states and 14206 transitions. [2024-11-19 00:00:39,997 INFO L78 Accepts]: Start accepts. Automaton has 8643 states and 14206 transitions. Word has length 429 [2024-11-19 00:00:39,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:39,998 INFO L471 AbstractCegarLoop]: Abstraction has 8643 states and 14206 transitions. [2024-11-19 00:00:39,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:39,999 INFO L276 IsEmpty]: Start isEmpty. Operand 8643 states and 14206 transitions. [2024-11-19 00:00:40,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-19 00:00:40,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:40,029 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:40,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:00:40,029 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:40,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:40,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1124758966, now seen corresponding path program 1 times [2024-11-19 00:00:40,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:40,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620535289] [2024-11-19 00:00:40,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:40,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:41,199 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:00:41,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:41,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620535289] [2024-11-19 00:00:41,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620535289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:41,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:00:41,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:00:41,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511952284] [2024-11-19 00:00:41,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:41,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:00:41,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:41,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:00:41,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:00:41,201 INFO L87 Difference]: Start difference. First operand 8643 states and 14206 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-19 00:00:42,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:42,340 INFO L93 Difference]: Finished difference Result 28617 states and 46804 transitions. [2024-11-19 00:00:42,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:00:42,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 429 [2024-11-19 00:00:42,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:42,477 INFO L225 Difference]: With dead ends: 28617 [2024-11-19 00:00:42,477 INFO L226 Difference]: Without dead ends: 20001 [2024-11-19 00:00:42,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:00:42,490 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 958 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:42,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 2192 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:00:42,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20001 states. [2024-11-19 00:00:42,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20001 to 17133. [2024-11-19 00:00:42,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17133 states, 16579 states have (on average 1.635502744435732) internal successors, (27115), 16626 states have internal predecessors, (27115), 494 states have call successors, (494), 59 states have call predecessors, (494), 59 states have return successors, (494), 447 states have call predecessors, (494), 494 states have call successors, (494) [2024-11-19 00:00:42,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17133 states to 17133 states and 28103 transitions. [2024-11-19 00:00:42,934 INFO L78 Accepts]: Start accepts. Automaton has 17133 states and 28103 transitions. Word has length 429 [2024-11-19 00:00:42,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:42,934 INFO L471 AbstractCegarLoop]: Abstraction has 17133 states and 28103 transitions. [2024-11-19 00:00:42,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-19 00:00:42,935 INFO L276 IsEmpty]: Start isEmpty. Operand 17133 states and 28103 transitions. [2024-11-19 00:00:42,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-19 00:00:42,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:42,954 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:42,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:00:42,954 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:42,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1151824568, now seen corresponding path program 1 times [2024-11-19 00:00:42,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:42,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15224363] [2024-11-19 00:00:42,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:42,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:44,112 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:00:44,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:44,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15224363] [2024-11-19 00:00:44,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15224363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:44,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:00:44,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:00:44,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700436019] [2024-11-19 00:00:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:44,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:00:44,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:44,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:00:44,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:00:44,115 INFO L87 Difference]: Start difference. First operand 17133 states and 28103 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:44,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:44,474 INFO L93 Difference]: Finished difference Result 34201 states and 56102 transitions. [2024-11-19 00:00:44,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:00:44,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 429 [2024-11-19 00:00:44,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:44,511 INFO L225 Difference]: With dead ends: 34201 [2024-11-19 00:00:44,512 INFO L226 Difference]: Without dead ends: 17095 [2024-11-19 00:00:44,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:00:44,528 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 477 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:44,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1162 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:00:44,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17095 states. [2024-11-19 00:00:44,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17095 to 14801. [2024-11-19 00:00:44,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14801 states, 14451 states have (on average 1.6554563698013978) internal successors, (23923), 14474 states have internal predecessors, (23923), 310 states have call successors, (310), 39 states have call predecessors, (310), 39 states have return successors, (310), 287 states have call predecessors, (310), 310 states have call successors, (310) [2024-11-19 00:00:44,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14801 states to 14801 states and 24543 transitions. [2024-11-19 00:00:44,863 INFO L78 Accepts]: Start accepts. Automaton has 14801 states and 24543 transitions. Word has length 429 [2024-11-19 00:00:44,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:44,864 INFO L471 AbstractCegarLoop]: Abstraction has 14801 states and 24543 transitions. [2024-11-19 00:00:44,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:44,864 INFO L276 IsEmpty]: Start isEmpty. Operand 14801 states and 24543 transitions. [2024-11-19 00:00:44,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-19 00:00:44,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:44,883 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:44,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:00:44,884 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:44,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:44,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1953237118, now seen corresponding path program 1 times [2024-11-19 00:00:44,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:44,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301473260] [2024-11-19 00:00:44,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:44,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:48,079 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-19 00:00:48,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:48,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301473260] [2024-11-19 00:00:48,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301473260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:00:48,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186725646] [2024-11-19 00:00:48,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:48,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:00:48,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:00:48,082 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) [2024-11-19 00:00:48,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:00:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:48,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 00:00:48,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:00:48,850 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3798 proven. 27 refuted. 0 times theorem prover too weak. 3495 trivial. 0 not checked. [2024-11-19 00:00:48,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:00:49,215 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 153 proven. 27 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-19 00:00:49,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186725646] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:00:49,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:00:49,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-19 00:00:49,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797102596] [2024-11-19 00:00:49,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:00:49,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:00:49,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:49,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:00:49,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:00:49,219 INFO L87 Difference]: Start difference. First operand 14801 states and 24543 transitions. Second operand has 15 states, 15 states have (on average 14.8) internal successors, (222), 15 states have internal predecessors, (222), 6 states have call successors, (136), 3 states have call predecessors, (136), 6 states have return successors, (137), 6 states have call predecessors, (137), 6 states have call successors, (137) [2024-11-19 00:00:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:50,058 INFO L93 Difference]: Finished difference Result 22753 states and 37540 transitions. [2024-11-19 00:00:50,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:00:50,060 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 14.8) internal successors, (222), 15 states have internal predecessors, (222), 6 states have call successors, (136), 3 states have call predecessors, (136), 6 states have return successors, (137), 6 states have call predecessors, (137), 6 states have call successors, (137) Word has length 430 [2024-11-19 00:00:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:50,078 INFO L225 Difference]: With dead ends: 22753 [2024-11-19 00:00:50,078 INFO L226 Difference]: Without dead ends: 7979 [2024-11-19 00:00:50,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 875 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2024-11-19 00:00:50,100 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 924 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:50,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1621 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:00:50,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7979 states. [2024-11-19 00:00:50,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7979 to 7827. [2024-11-19 00:00:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7827 states, 7545 states have (on average 1.6343273691186215) internal successors, (12331), 7555 states have internal predecessors, (12331), 230 states have call successors, (230), 51 states have call predecessors, (230), 51 states have return successors, (230), 220 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-19 00:00:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7827 states to 7827 states and 12791 transitions. [2024-11-19 00:00:50,273 INFO L78 Accepts]: Start accepts. Automaton has 7827 states and 12791 transitions. Word has length 430 [2024-11-19 00:00:50,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:50,274 INFO L471 AbstractCegarLoop]: Abstraction has 7827 states and 12791 transitions. [2024-11-19 00:00:50,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.8) internal successors, (222), 15 states have internal predecessors, (222), 6 states have call successors, (136), 3 states have call predecessors, (136), 6 states have return successors, (137), 6 states have call predecessors, (137), 6 states have call successors, (137) [2024-11-19 00:00:50,274 INFO L276 IsEmpty]: Start isEmpty. Operand 7827 states and 12791 transitions. [2024-11-19 00:00:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-19 00:00:50,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:50,283 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:50,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 00:00:50,483 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,SelfDestructingSolverStorable9 [2024-11-19 00:00:50,484 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:50,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:50,485 INFO L85 PathProgramCache]: Analyzing trace with hash 258825756, now seen corresponding path program 1 times [2024-11-19 00:00:50,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:50,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499009920] [2024-11-19 00:00:50,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:50,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:51,067 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:00:51,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:51,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499009920] [2024-11-19 00:00:51,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499009920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:51,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:00:51,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:00:51,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415551007] [2024-11-19 00:00:51,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:51,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:00:51,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:51,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:00:51,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:00:51,069 INFO L87 Difference]: Start difference. First operand 7827 states and 12791 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:51,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:51,517 INFO L93 Difference]: Finished difference Result 29301 states and 48148 transitions. [2024-11-19 00:00:51,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:00:51,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 431 [2024-11-19 00:00:51,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:51,567 INFO L225 Difference]: With dead ends: 29301 [2024-11-19 00:00:51,567 INFO L226 Difference]: Without dead ends: 21477 [2024-11-19 00:00:51,584 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 [2024-11-19 00:00:51,585 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 601 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:51,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1561 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:00:51,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21477 states. [2024-11-19 00:00:51,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21477 to 15649. [2024-11-19 00:00:52,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15649 states, 15086 states have (on average 1.6276017499668567) internal successors, (24554), 15106 states have internal predecessors, (24554), 460 states have call successors, (460), 102 states have call predecessors, (460), 102 states have return successors, (460), 440 states have call predecessors, (460), 460 states have call successors, (460) [2024-11-19 00:00:52,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15649 states to 15649 states and 25474 transitions. [2024-11-19 00:00:52,043 INFO L78 Accepts]: Start accepts. Automaton has 15649 states and 25474 transitions. Word has length 431 [2024-11-19 00:00:52,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:52,044 INFO L471 AbstractCegarLoop]: Abstraction has 15649 states and 25474 transitions. [2024-11-19 00:00:52,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 15649 states and 25474 transitions. [2024-11-19 00:00:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-19 00:00:52,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:52,061 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:52,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:00:52,062 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:52,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash 828940149, now seen corresponding path program 1 times [2024-11-19 00:00:52,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:52,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363139766] [2024-11-19 00:00:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:52,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:00:52,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:52,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363139766] [2024-11-19 00:00:52,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363139766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:00:52,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:00:52,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:00:52,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430874652] [2024-11-19 00:00:52,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:00:52,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:00:52,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:52,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:00:52,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:00:52,870 INFO L87 Difference]: Start difference. First operand 15649 states and 25474 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:53,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:53,257 INFO L93 Difference]: Finished difference Result 40293 states and 65706 transitions. [2024-11-19 00:00:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:00:53,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 432 [2024-11-19 00:00:53,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:53,308 INFO L225 Difference]: With dead ends: 40293 [2024-11-19 00:00:53,309 INFO L226 Difference]: Without dead ends: 24647 [2024-11-19 00:00:53,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:00:53,335 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 456 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:53,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1180 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:00:53,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24647 states. [2024-11-19 00:00:53,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24647 to 17633. [2024-11-19 00:00:53,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17633 states, 17070 states have (on average 1.6333919156414762) internal successors, (27882), 17090 states have internal predecessors, (27882), 460 states have call successors, (460), 102 states have call predecessors, (460), 102 states have return successors, (460), 440 states have call predecessors, (460), 460 states have call successors, (460) [2024-11-19 00:00:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17633 states to 17633 states and 28802 transitions. [2024-11-19 00:00:53,729 INFO L78 Accepts]: Start accepts. Automaton has 17633 states and 28802 transitions. Word has length 432 [2024-11-19 00:00:53,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:53,730 INFO L471 AbstractCegarLoop]: Abstraction has 17633 states and 28802 transitions. [2024-11-19 00:00:53,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:00:53,731 INFO L276 IsEmpty]: Start isEmpty. Operand 17633 states and 28802 transitions. [2024-11-19 00:00:53,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-19 00:00:53,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:53,745 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:53,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:00:53,745 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:53,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:53,746 INFO L85 PathProgramCache]: Analyzing trace with hash 756553591, now seen corresponding path program 1 times [2024-11-19 00:00:53,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:53,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593396710] [2024-11-19 00:00:53,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:53,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:55,278 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 24 proven. 156 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-19 00:00:55,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:00:55,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593396710] [2024-11-19 00:00:55,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593396710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:00:55,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208674903] [2024-11-19 00:00:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:55,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:00:55,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:00:55,282 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:00:55,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:00:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:00:55,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 00:00:55,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:00:56,093 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 2080 proven. 150 refuted. 0 times theorem prover too weak. 5090 trivial. 0 not checked. [2024-11-19 00:00:56,094 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:00:56,508 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 30 proven. 150 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-19 00:00:56,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208674903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:00:56,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:00:56,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-19 00:00:56,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302720115] [2024-11-19 00:00:56,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:00:56,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:00:56,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:00:56,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:00:56,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:00:56,511 INFO L87 Difference]: Start difference. First operand 17633 states and 28802 transitions. Second operand has 8 states, 8 states have (on average 24.375) internal successors, (195), 8 states have internal predecessors, (195), 3 states have call successors, (163), 2 states have call predecessors, (163), 4 states have return successors, (165), 3 states have call predecessors, (165), 3 states have call successors, (165) [2024-11-19 00:00:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:00:57,312 INFO L93 Difference]: Finished difference Result 25563 states and 41218 transitions. [2024-11-19 00:00:57,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:00:57,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.375) internal successors, (195), 8 states have internal predecessors, (195), 3 states have call successors, (163), 2 states have call predecessors, (163), 4 states have return successors, (165), 3 states have call predecessors, (165), 3 states have call successors, (165) Word has length 432 [2024-11-19 00:00:57,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:00:57,335 INFO L225 Difference]: With dead ends: 25563 [2024-11-19 00:00:57,335 INFO L226 Difference]: Without dead ends: 7933 [2024-11-19 00:00:57,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 861 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:00:57,351 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 564 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:00:57,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 1060 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:00:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2024-11-19 00:00:57,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7881. [2024-11-19 00:00:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7881 states, 7366 states have (on average 1.5620418137388) internal successors, (11506), 7378 states have internal predecessors, (11506), 396 states have call successors, (396), 118 states have call predecessors, (396), 118 states have return successors, (396), 384 states have call predecessors, (396), 396 states have call successors, (396) [2024-11-19 00:00:57,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7881 states to 7881 states and 12298 transitions. [2024-11-19 00:00:57,692 INFO L78 Accepts]: Start accepts. Automaton has 7881 states and 12298 transitions. Word has length 432 [2024-11-19 00:00:57,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:00:57,693 INFO L471 AbstractCegarLoop]: Abstraction has 7881 states and 12298 transitions. [2024-11-19 00:00:57,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.375) internal successors, (195), 8 states have internal predecessors, (195), 3 states have call successors, (163), 2 states have call predecessors, (163), 4 states have return successors, (165), 3 states have call predecessors, (165), 3 states have call successors, (165) [2024-11-19 00:00:57,693 INFO L276 IsEmpty]: Start isEmpty. Operand 7881 states and 12298 transitions. [2024-11-19 00:00:57,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-19 00:00:57,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:00:57,702 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:00:57,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 00:00:57,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:00:57,906 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:00:57,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:00:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1878960023, now seen corresponding path program 1 times [2024-11-19 00:00:57,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:00:57,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373202651] [2024-11-19 00:00:57,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:00:57,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:00:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:00,401 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 36 proven. 144 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-19 00:01:00,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:00,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373202651] [2024-11-19 00:01:00,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373202651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:01:00,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443727105] [2024-11-19 00:01:00,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:00,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:01:00,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:01:00,403 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:01:00,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 00:01:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:00,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 00:01:00,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:01:01,251 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 2388 proven. 144 refuted. 0 times theorem prover too weak. 4788 trivial. 0 not checked. [2024-11-19 00:01:01,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:01:01,830 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 36 proven. 144 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-19 00:01:01,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443727105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:01:01,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:01:01,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 9] total 16 [2024-11-19 00:01:01,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576256086] [2024-11-19 00:01:01,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:01:01,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:01:01,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:01,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:01:01,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:01:01,835 INFO L87 Difference]: Start difference. First operand 7881 states and 12298 transitions. Second operand has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2024-11-19 00:01:04,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:04,304 INFO L93 Difference]: Finished difference Result 22091 states and 34117 transitions. [2024-11-19 00:01:04,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-19 00:01:04,304 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) Word has length 432 [2024-11-19 00:01:04,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:04,341 INFO L225 Difference]: With dead ends: 22091 [2024-11-19 00:01:04,342 INFO L226 Difference]: Without dead ends: 14213 [2024-11-19 00:01:04,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 858 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=543, Invalid=1809, Unknown=0, NotChecked=0, Total=2352 [2024-11-19 00:01:04,357 INFO L432 NwaCegarLoop]: 878 mSDtfsCounter, 1371 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:04,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 3126 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 00:01:04,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14213 states. [2024-11-19 00:01:04,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14213 to 13800. [2024-11-19 00:01:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13800 states, 12722 states have (on average 1.530105329350731) internal successors, (19466), 12747 states have internal predecessors, (19466), 816 states have call successors, (816), 261 states have call predecessors, (816), 261 states have return successors, (816), 791 states have call predecessors, (816), 816 states have call successors, (816) [2024-11-19 00:01:04,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13800 states to 13800 states and 21098 transitions. [2024-11-19 00:01:04,838 INFO L78 Accepts]: Start accepts. Automaton has 13800 states and 21098 transitions. Word has length 432 [2024-11-19 00:01:04,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:04,839 INFO L471 AbstractCegarLoop]: Abstraction has 13800 states and 21098 transitions. [2024-11-19 00:01:04,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5625) internal successors, (169), 16 states have internal predecessors, (169), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2024-11-19 00:01:04,840 INFO L276 IsEmpty]: Start isEmpty. Operand 13800 states and 21098 transitions. [2024-11-19 00:01:04,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-19 00:01:04,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:04,850 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:04,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 00:01:05,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:01:05,051 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:05,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:05,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1142310567, now seen corresponding path program 1 times [2024-11-19 00:01:05,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:05,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210471688] [2024-11-19 00:01:05,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:05,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:06,690 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 153 proven. 27 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2024-11-19 00:01:06,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:06,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210471688] [2024-11-19 00:01:06,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210471688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:01:06,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691649020] [2024-11-19 00:01:06,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:06,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:01:06,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:01:06,692 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:01:06,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 00:01:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:07,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-19 00:01:07,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:01:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 4598 proven. 210 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2024-11-19 00:01:08,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:01:09,231 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 225 proven. 132 refuted. 0 times theorem prover too weak. 6963 trivial. 0 not checked. [2024-11-19 00:01:09,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691649020] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:01:09,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:01:09,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 15, 13] total 28 [2024-11-19 00:01:09,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200943690] [2024-11-19 00:01:09,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:01:09,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 00:01:09,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:09,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 00:01:09,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-11-19 00:01:09,235 INFO L87 Difference]: Start difference. First operand 13800 states and 21098 transitions. Second operand has 28 states, 27 states have (on average 11.925925925925926) internal successors, (322), 27 states have internal predecessors, (322), 8 states have call successors, (121), 4 states have call predecessors, (121), 8 states have return successors, (123), 7 states have call predecessors, (123), 8 states have call successors, (123) [2024-11-19 00:01:20,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:20,233 INFO L93 Difference]: Finished difference Result 75070 states and 113525 transitions. [2024-11-19 00:01:20,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2024-11-19 00:01:20,235 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 11.925925925925926) internal successors, (322), 27 states have internal predecessors, (322), 8 states have call successors, (121), 4 states have call predecessors, (121), 8 states have return successors, (123), 7 states have call predecessors, (123), 8 states have call successors, (123) Word has length 433 [2024-11-19 00:01:20,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:20,354 INFO L225 Difference]: With dead ends: 75070 [2024-11-19 00:01:20,355 INFO L226 Difference]: Without dead ends: 61348 [2024-11-19 00:01:20,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1014 GetRequests, 858 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9618 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=5132, Invalid=19674, Unknown=0, NotChecked=0, Total=24806 [2024-11-19 00:01:20,390 INFO L432 NwaCegarLoop]: 810 mSDtfsCounter, 7277 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 3899 mSolverCounterSat, 2915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7277 SdHoareTripleChecker+Valid, 4362 SdHoareTripleChecker+Invalid, 6814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2915 IncrementalHoareTripleChecker+Valid, 3899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:20,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7277 Valid, 4362 Invalid, 6814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2915 Valid, 3899 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 00:01:20,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61348 states. [2024-11-19 00:01:21,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61348 to 24631. [2024-11-19 00:01:21,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24631 states, 23343 states have (on average 1.580559482500107) internal successors, (36895), 23372 states have internal predecessors, (36895), 937 states have call successors, (937), 350 states have call predecessors, (937), 350 states have return successors, (937), 908 states have call predecessors, (937), 937 states have call successors, (937) [2024-11-19 00:01:22,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24631 states to 24631 states and 38769 transitions. [2024-11-19 00:01:22,037 INFO L78 Accepts]: Start accepts. Automaton has 24631 states and 38769 transitions. Word has length 433 [2024-11-19 00:01:22,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:22,037 INFO L471 AbstractCegarLoop]: Abstraction has 24631 states and 38769 transitions. [2024-11-19 00:01:22,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 11.925925925925926) internal successors, (322), 27 states have internal predecessors, (322), 8 states have call successors, (121), 4 states have call predecessors, (121), 8 states have return successors, (123), 7 states have call predecessors, (123), 8 states have call successors, (123) [2024-11-19 00:01:22,038 INFO L276 IsEmpty]: Start isEmpty. Operand 24631 states and 38769 transitions. [2024-11-19 00:01:22,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-19 00:01:22,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:22,058 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:22,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 00:01:22,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 00:01:22,263 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:22,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:22,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1706120857, now seen corresponding path program 1 times [2024-11-19 00:01:22,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:22,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052596471] [2024-11-19 00:01:22,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:22,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-11-19 00:01:27,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:27,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052596471] [2024-11-19 00:01:27,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052596471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:27,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:27,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:01:27,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393616461] [2024-11-19 00:01:27,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:27,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:01:27,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:27,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:01:27,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:01:27,546 INFO L87 Difference]: Start difference. First operand 24631 states and 38769 transitions. Second operand has 13 states, 13 states have (on average 10.076923076923077) internal successors, (131), 13 states have internal predecessors, (131), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:01:38,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:38,344 INFO L93 Difference]: Finished difference Result 103729 states and 163733 transitions. [2024-11-19 00:01:38,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:01:38,345 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.076923076923077) internal successors, (131), 13 states have internal predecessors, (131), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 433 [2024-11-19 00:01:38,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:38,460 INFO L225 Difference]: With dead ends: 103729 [2024-11-19 00:01:38,460 INFO L226 Difference]: Without dead ends: 90827 [2024-11-19 00:01:38,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:01:38,479 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 4217 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 2903 mSolverCounterSat, 705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4217 SdHoareTripleChecker+Valid, 3328 SdHoareTripleChecker+Invalid, 3608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 705 IncrementalHoareTripleChecker+Valid, 2903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:38,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4217 Valid, 3328 Invalid, 3608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [705 Valid, 2903 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-19 00:01:38,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90827 states. [2024-11-19 00:01:40,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90827 to 44351. [2024-11-19 00:01:40,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44351 states, 42698 states have (on average 1.5933767389573281) internal successors, (68034), 42743 states have internal predecessors, (68034), 1177 states have call successors, (1177), 475 states have call predecessors, (1177), 475 states have return successors, (1177), 1132 states have call predecessors, (1177), 1177 states have call successors, (1177) [2024-11-19 00:01:40,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44351 states to 44351 states and 70388 transitions. [2024-11-19 00:01:40,909 INFO L78 Accepts]: Start accepts. Automaton has 44351 states and 70388 transitions. Word has length 433 [2024-11-19 00:01:40,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:40,910 INFO L471 AbstractCegarLoop]: Abstraction has 44351 states and 70388 transitions. [2024-11-19 00:01:40,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.076923076923077) internal successors, (131), 13 states have internal predecessors, (131), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2024-11-19 00:01:40,910 INFO L276 IsEmpty]: Start isEmpty. Operand 44351 states and 70388 transitions. [2024-11-19 00:01:40,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-19 00:01:40,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:40,930 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:40,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 00:01:40,931 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:40,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:40,931 INFO L85 PathProgramCache]: Analyzing trace with hash 665618405, now seen corresponding path program 1 times [2024-11-19 00:01:40,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:40,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419792965] [2024-11-19 00:01:40,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:40,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat