./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label53.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/eca-rers2012/Problem13_label53.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 644f34509b30309e4697abb994dc1df837b8ceecc87fd74e76756a410c51bce5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:03:03,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:03:03,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:03:03,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:03:03,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:03:03,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:03:03,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:03:03,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:03:03,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:03:03,777 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:03:03,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:03:03,777 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:03:03,778 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:03:03,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:03:03,779 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:03:03,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:03:03,780 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:03:03,780 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:03:03,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:03:03,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:03:03,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:03:03,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:03:03,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:03:03,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:03:03,785 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:03:03,785 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:03:03,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:03:03,785 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:03:03,786 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:03:03,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:03:03,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:03:03,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:03:03,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:03:03,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:03:03,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:03:03,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:03:03,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:03:03,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:03:03,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:03:03,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:03:03,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:03:03,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:03:03,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 644f34509b30309e4697abb994dc1df837b8ceecc87fd74e76756a410c51bce5 [2024-11-16 04:03:04,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:03:04,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:03:04,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:03:04,064 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:03:04,064 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:03:04,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label53.c [2024-11-16 04:03:05,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:03:05,987 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:03:05,989 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label53.c [2024-11-16 04:03:06,033 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64840752/ff6e0086501c4002ac1dca23557b547b/FLAGed6c22717 [2024-11-16 04:03:06,066 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64840752/ff6e0086501c4002ac1dca23557b547b [2024-11-16 04:03:06,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:03:06,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:03:06,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:03:06,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:03:06,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:03:06,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:03:06" (1/1) ... [2024-11-16 04:03:06,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b333b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:06, skipping insertion in model container [2024-11-16 04:03:06,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:03:06" (1/1) ... [2024-11-16 04:03:06,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:03:06,566 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/eca-rers2012/Problem13_label53.c[4658,4671] [2024-11-16 04:03:07,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:03:07,446 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:03:07,475 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/eca-rers2012/Problem13_label53.c[4658,4671] [2024-11-16 04:03:08,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:03:08,063 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:03:08,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08 WrapperNode [2024-11-16 04:03:08,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:03:08,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:03:08,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:03:08,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:03:08,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:08,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:08,665 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-16 04:03:08,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:03:08,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:03:08,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:03:08,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:03:08,677 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:08,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:08,764 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:08,956 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]. [2024-11-16 04:03:08,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:08,957 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:09,247 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:09,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:09,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:09,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:09,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:03:09,390 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:03:09,390 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:03:09,391 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:03:09,391 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (1/1) ... [2024-11-16 04:03:09,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:03:09,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:03:09,426 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) [2024-11-16 04:03:09,429 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 [2024-11-16 04:03:09,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:03:09,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:03:09,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:03:09,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:03:09,537 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:03:09,539 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:03:14,544 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-16 04:03:14,544 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-16 04:03:14,544 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-16 04:03:14,808 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-16 04:03:14,808 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:03:14,849 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:03:14,850 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:03:14,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:03:14 BoogieIcfgContainer [2024-11-16 04:03:14,850 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:03:14,852 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:03:14,852 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:03:14,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:03:14,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:03:06" (1/3) ... [2024-11-16 04:03:14,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5143e817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:03:14, skipping insertion in model container [2024-11-16 04:03:14,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:08" (2/3) ... [2024-11-16 04:03:14,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5143e817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:03:14, skipping insertion in model container [2024-11-16 04:03:14,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:03:14" (3/3) ... [2024-11-16 04:03:14,861 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label53.c [2024-11-16 04:03:14,876 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:03:14,877 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:03:14,975 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:03:14,981 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;@5b147460, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:03:14,982 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:03:14,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:14,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-16 04:03:14,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:15,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:15,001 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:15,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:15,006 INFO L85 PathProgramCache]: Analyzing trace with hash 353045800, now seen corresponding path program 1 times [2024-11-16 04:03:15,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:15,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147327699] [2024-11-16 04:03:15,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:15,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:15,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:15,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:15,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147327699] [2024-11-16 04:03:15,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147327699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:15,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:15,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:03:15,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941274602] [2024-11-16 04:03:15,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:15,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:15,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:15,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:15,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:15,380 INFO L87 Difference]: Start difference. First operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:19,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:19,592 INFO L93 Difference]: Finished difference Result 3127 states and 5810 transitions. [2024-11-16 04:03:19,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:19,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-11-16 04:03:19,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:19,623 INFO L225 Difference]: With dead ends: 3127 [2024-11-16 04:03:19,623 INFO L226 Difference]: Without dead ends: 1947 [2024-11-16 04:03:19,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:19,632 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 958 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 3124 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 3701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 3124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:19,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 575 Invalid, 3701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 3124 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-16 04:03:19,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2024-11-16 04:03:19,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1876. [2024-11-16 04:03:19,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1875 states have (on average 1.7381333333333333) internal successors, (3259), 1875 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 3259 transitions. [2024-11-16 04:03:19,749 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 3259 transitions. Word has length 33 [2024-11-16 04:03:19,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:19,750 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 3259 transitions. [2024-11-16 04:03:19,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:19,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 3259 transitions. [2024-11-16 04:03:19,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 04:03:19,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:19,753 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:19,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:03:19,754 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:19,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:19,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1352145346, now seen corresponding path program 1 times [2024-11-16 04:03:19,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:19,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210606821] [2024-11-16 04:03:19,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:19,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:20,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:20,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210606821] [2024-11-16 04:03:20,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210606821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:20,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:20,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:03:20,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126113217] [2024-11-16 04:03:20,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:20,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:20,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:20,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:20,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:20,206 INFO L87 Difference]: Start difference. First operand 1876 states and 3259 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:23,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:23,885 INFO L93 Difference]: Finished difference Result 4611 states and 7971 transitions. [2024-11-16 04:03:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:23,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-16 04:03:23,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:23,898 INFO L225 Difference]: With dead ends: 4611 [2024-11-16 04:03:23,899 INFO L226 Difference]: Without dead ends: 2737 [2024-11-16 04:03:23,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:23,905 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 815 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 3180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:23,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 742 Invalid, 3180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 3016 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-16 04:03:23,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2024-11-16 04:03:23,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 2674. [2024-11-16 04:03:23,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.656939768050879) internal successors, (4429), 2673 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:23,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4429 transitions. [2024-11-16 04:03:23,959 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4429 transitions. Word has length 99 [2024-11-16 04:03:23,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:23,960 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 4429 transitions. [2024-11-16 04:03:23,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:23,960 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4429 transitions. [2024-11-16 04:03:23,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 04:03:23,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:23,963 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:23,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:03:23,963 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:23,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:23,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1514078254, now seen corresponding path program 1 times [2024-11-16 04:03:23,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:23,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121970852] [2024-11-16 04:03:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:23,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:24,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:24,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121970852] [2024-11-16 04:03:24,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121970852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:24,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:24,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:03:24,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666340401] [2024-11-16 04:03:24,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:24,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:24,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:24,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:24,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:24,097 INFO L87 Difference]: Start difference. First operand 2674 states and 4429 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:27,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:27,044 INFO L93 Difference]: Finished difference Result 7743 states and 12875 transitions. [2024-11-16 04:03:27,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:27,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-16 04:03:27,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:27,062 INFO L225 Difference]: With dead ends: 7743 [2024-11-16 04:03:27,063 INFO L226 Difference]: Without dead ends: 5071 [2024-11-16 04:03:27,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:27,070 INFO L432 NwaCegarLoop]: 985 mSDtfsCounter, 871 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 3255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:27,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1139 Invalid, 3255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 04:03:27,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5071 states. [2024-11-16 04:03:27,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5071 to 5070. [2024-11-16 04:03:27,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5070 states, 5069 states have (on average 1.45393568751233) internal successors, (7370), 5069 states have internal predecessors, (7370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:27,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5070 states to 5070 states and 7370 transitions. [2024-11-16 04:03:27,157 INFO L78 Accepts]: Start accepts. Automaton has 5070 states and 7370 transitions. Word has length 100 [2024-11-16 04:03:27,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:27,160 INFO L471 AbstractCegarLoop]: Abstraction has 5070 states and 7370 transitions. [2024-11-16 04:03:27,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:27,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5070 states and 7370 transitions. [2024-11-16 04:03:27,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 04:03:27,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:27,165 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:27,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:03:27,165 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:27,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:27,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1079820276, now seen corresponding path program 1 times [2024-11-16 04:03:27,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:27,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801507270] [2024-11-16 04:03:27,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:27,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:27,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:27,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801507270] [2024-11-16 04:03:27,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801507270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:27,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:27,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:03:27,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531700121] [2024-11-16 04:03:27,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:27,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:27,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:27,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:27,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:27,309 INFO L87 Difference]: Start difference. First operand 5070 states and 7370 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:30,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:30,502 INFO L93 Difference]: Finished difference Result 12533 states and 18450 transitions. [2024-11-16 04:03:30,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:30,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-16 04:03:30,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:30,525 INFO L225 Difference]: With dead ends: 12533 [2024-11-16 04:03:30,526 INFO L226 Difference]: Without dead ends: 7465 [2024-11-16 04:03:30,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:30,533 INFO L432 NwaCegarLoop]: 1046 mSDtfsCounter, 873 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 2662 mSolverCounterSat, 718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 2662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:30,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1182 Invalid, 3380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [718 Valid, 2662 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 04:03:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7465 states. [2024-11-16 04:03:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7465 to 7454. [2024-11-16 04:03:30,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7454 states, 7453 states have (on average 1.3363746142492956) internal successors, (9960), 7453 states have internal predecessors, (9960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:30,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 9960 transitions. [2024-11-16 04:03:30,654 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 9960 transitions. Word has length 103 [2024-11-16 04:03:30,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:30,655 INFO L471 AbstractCegarLoop]: Abstraction has 7454 states and 9960 transitions. [2024-11-16 04:03:30,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 9960 transitions. [2024-11-16 04:03:30,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 04:03:30,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:30,657 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:30,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:03:30,657 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:30,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:30,658 INFO L85 PathProgramCache]: Analyzing trace with hash -965334408, now seen corresponding path program 1 times [2024-11-16 04:03:30,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:30,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439641139] [2024-11-16 04:03:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:30,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:30,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:30,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439641139] [2024-11-16 04:03:30,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439641139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:30,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:30,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:03:30,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938304750] [2024-11-16 04:03:30,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:30,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:30,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:30,807 INFO L87 Difference]: Start difference. First operand 7454 states and 9960 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:33,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:33,792 INFO L93 Difference]: Finished difference Result 20451 states and 27808 transitions. [2024-11-16 04:03:33,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:33,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-16 04:03:33,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:33,826 INFO L225 Difference]: With dead ends: 20451 [2024-11-16 04:03:33,826 INFO L226 Difference]: Without dead ends: 13787 [2024-11-16 04:03:33,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:33,838 INFO L432 NwaCegarLoop]: 1012 mSDtfsCounter, 805 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 784 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 784 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:33,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1165 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [784 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 04:03:33,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13787 states. [2024-11-16 04:03:33,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13787 to 12979. [2024-11-16 04:03:34,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12979 states, 12978 states have (on average 1.2380181846201264) internal successors, (16067), 12978 states have internal predecessors, (16067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:34,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12979 states to 12979 states and 16067 transitions. [2024-11-16 04:03:34,020 INFO L78 Accepts]: Start accepts. Automaton has 12979 states and 16067 transitions. Word has length 107 [2024-11-16 04:03:34,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:34,020 INFO L471 AbstractCegarLoop]: Abstraction has 12979 states and 16067 transitions. [2024-11-16 04:03:34,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:34,021 INFO L276 IsEmpty]: Start isEmpty. Operand 12979 states and 16067 transitions. [2024-11-16 04:03:34,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 04:03:34,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:34,022 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:34,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:03:34,022 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:34,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:34,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1222560348, now seen corresponding path program 1 times [2024-11-16 04:03:34,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:34,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470668261] [2024-11-16 04:03:34,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:34,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:34,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:34,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470668261] [2024-11-16 04:03:34,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470668261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:34,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:34,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:34,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296998758] [2024-11-16 04:03:34,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:34,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:34,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:34,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:34,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:34,128 INFO L87 Difference]: Start difference. First operand 12979 states and 16067 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:37,085 INFO L93 Difference]: Finished difference Result 31500 states and 40031 transitions. [2024-11-16 04:03:37,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:37,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-16 04:03:37,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:37,124 INFO L225 Difference]: With dead ends: 31500 [2024-11-16 04:03:37,125 INFO L226 Difference]: Without dead ends: 19311 [2024-11-16 04:03:37,141 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 [2024-11-16 04:03:37,142 INFO L432 NwaCegarLoop]: 748 mSDtfsCounter, 1006 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 1002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:37,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 841 Invalid, 3397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1002 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 04:03:37,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19311 states. [2024-11-16 04:03:37,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19311 to 19299. [2024-11-16 04:03:37,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19299 states, 19298 states have (on average 1.2405430614571458) internal successors, (23940), 19298 states have internal predecessors, (23940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:37,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19299 states to 19299 states and 23940 transitions. [2024-11-16 04:03:37,405 INFO L78 Accepts]: Start accepts. Automaton has 19299 states and 23940 transitions. Word has length 123 [2024-11-16 04:03:37,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:37,406 INFO L471 AbstractCegarLoop]: Abstraction has 19299 states and 23940 transitions. [2024-11-16 04:03:37,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:37,407 INFO L276 IsEmpty]: Start isEmpty. Operand 19299 states and 23940 transitions. [2024-11-16 04:03:37,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-16 04:03:37,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:37,411 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:37,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:03:37,411 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:37,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:37,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1968108739, now seen corresponding path program 1 times [2024-11-16 04:03:37,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:37,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109427379] [2024-11-16 04:03:37,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:37,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:37,975 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 04:03:37,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:37,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109427379] [2024-11-16 04:03:37,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109427379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:37,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:37,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:03:37,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8203672] [2024-11-16 04:03:37,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:37,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:37,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:37,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:37,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:37,979 INFO L87 Difference]: Start difference. First operand 19299 states and 23940 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:40,598 INFO L93 Difference]: Finished difference Result 37808 states and 47080 transitions. [2024-11-16 04:03:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:40,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2024-11-16 04:03:40,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:40,626 INFO L225 Difference]: With dead ends: 37808 [2024-11-16 04:03:40,627 INFO L226 Difference]: Without dead ends: 19299 [2024-11-16 04:03:40,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:40,646 INFO L432 NwaCegarLoop]: 1084 mSDtfsCounter, 700 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 2523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:40,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1215 Invalid, 2523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2519 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 04:03:40,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19299 states. [2024-11-16 04:03:40,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19299 to 19299. [2024-11-16 04:03:40,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19299 states, 19298 states have (on average 1.2402839672504922) internal successors, (23935), 19298 states have internal predecessors, (23935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:40,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19299 states to 19299 states and 23935 transitions. [2024-11-16 04:03:40,865 INFO L78 Accepts]: Start accepts. Automaton has 19299 states and 23935 transitions. Word has length 227 [2024-11-16 04:03:40,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:40,865 INFO L471 AbstractCegarLoop]: Abstraction has 19299 states and 23935 transitions. [2024-11-16 04:03:40,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:40,865 INFO L276 IsEmpty]: Start isEmpty. Operand 19299 states and 23935 transitions. [2024-11-16 04:03:40,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-16 04:03:40,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:40,871 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:40,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:03:40,872 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:40,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:40,874 INFO L85 PathProgramCache]: Analyzing trace with hash 557528897, now seen corresponding path program 1 times [2024-11-16 04:03:40,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:40,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247963038] [2024-11-16 04:03:40,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:40,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:41,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:41,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247963038] [2024-11-16 04:03:41,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247963038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:41,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:41,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:41,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164144558] [2024-11-16 04:03:41,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:41,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:41,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:41,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:41,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:41,063 INFO L87 Difference]: Start difference. First operand 19299 states and 23935 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:44,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:44,020 INFO L93 Difference]: Finished difference Result 44125 states and 54954 transitions. [2024-11-16 04:03:44,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:44,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2024-11-16 04:03:44,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:44,061 INFO L225 Difference]: With dead ends: 44125 [2024-11-16 04:03:44,062 INFO L226 Difference]: Without dead ends: 25616 [2024-11-16 04:03:44,077 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 [2024-11-16 04:03:44,078 INFO L432 NwaCegarLoop]: 838 mSDtfsCounter, 858 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:44,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 960 Invalid, 3042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 04:03:44,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25616 states. [2024-11-16 04:03:44,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25616 to 24818. [2024-11-16 04:03:44,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24818 states, 24817 states have (on average 1.2299633315872185) internal successors, (30524), 24817 states have internal predecessors, (30524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:44,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24818 states to 24818 states and 30524 transitions. [2024-11-16 04:03:44,358 INFO L78 Accepts]: Start accepts. Automaton has 24818 states and 30524 transitions. Word has length 234 [2024-11-16 04:03:44,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:44,359 INFO L471 AbstractCegarLoop]: Abstraction has 24818 states and 30524 transitions. [2024-11-16 04:03:44,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 24818 states and 30524 transitions. [2024-11-16 04:03:44,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-16 04:03:44,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:44,366 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:44,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:03:44,366 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:44,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:44,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1393547562, now seen corresponding path program 1 times [2024-11-16 04:03:44,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:44,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952037156] [2024-11-16 04:03:44,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:44,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:44,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:44,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952037156] [2024-11-16 04:03:44,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952037156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:44,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:44,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:44,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116957055] [2024-11-16 04:03:44,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:44,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:44,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:44,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:44,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:44,701 INFO L87 Difference]: Start difference. First operand 24818 states and 30524 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:47,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:47,546 INFO L93 Difference]: Finished difference Result 49661 states and 61104 transitions. [2024-11-16 04:03:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:47,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2024-11-16 04:03:47,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:47,581 INFO L225 Difference]: With dead ends: 49661 [2024-11-16 04:03:47,581 INFO L226 Difference]: Without dead ends: 25633 [2024-11-16 04:03:47,595 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 [2024-11-16 04:03:47,596 INFO L432 NwaCegarLoop]: 1802 mSDtfsCounter, 722 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 2560 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 2560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:47,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 1947 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 2560 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 04:03:47,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25633 states. [2024-11-16 04:03:47,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25633 to 25607. [2024-11-16 04:03:47,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25607 states, 25606 states have (on average 1.2076466453175037) internal successors, (30923), 25606 states have internal predecessors, (30923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:47,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25607 states to 25607 states and 30923 transitions. [2024-11-16 04:03:47,854 INFO L78 Accepts]: Start accepts. Automaton has 25607 states and 30923 transitions. Word has length 297 [2024-11-16 04:03:47,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:47,854 INFO L471 AbstractCegarLoop]: Abstraction has 25607 states and 30923 transitions. [2024-11-16 04:03:47,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:47,854 INFO L276 IsEmpty]: Start isEmpty. Operand 25607 states and 30923 transitions. [2024-11-16 04:03:47,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-16 04:03:47,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:47,859 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:47,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:03:47,860 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:47,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:47,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1070798787, now seen corresponding path program 1 times [2024-11-16 04:03:47,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:47,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164357517] [2024-11-16 04:03:47,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:47,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:48,125 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 04:03:48,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:48,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164357517] [2024-11-16 04:03:48,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164357517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:48,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:48,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:48,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814645444] [2024-11-16 04:03:48,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:48,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:03:48,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:48,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:03:48,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:03:48,131 INFO L87 Difference]: Start difference. First operand 25607 states and 30923 transitions. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:54,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:54,434 INFO L93 Difference]: Finished difference Result 75853 states and 92525 transitions. [2024-11-16 04:03:54,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:03:54,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 324 [2024-11-16 04:03:54,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:54,499 INFO L225 Difference]: With dead ends: 75853 [2024-11-16 04:03:54,499 INFO L226 Difference]: Without dead ends: 51036 [2024-11-16 04:03:54,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:03:54,526 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 1709 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 7203 mSolverCounterSat, 981 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 8184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 981 IncrementalHoareTripleChecker+Valid, 7203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:54,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 1160 Invalid, 8184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [981 Valid, 7203 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-16 04:03:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51036 states. [2024-11-16 04:03:54,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51036 to 50912. [2024-11-16 04:03:54,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50912 states, 50911 states have (on average 1.1906660643083027) internal successors, (60618), 50911 states have internal predecessors, (60618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50912 states to 50912 states and 60618 transitions. [2024-11-16 04:03:55,028 INFO L78 Accepts]: Start accepts. Automaton has 50912 states and 60618 transitions. Word has length 324 [2024-11-16 04:03:55,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:55,028 INFO L471 AbstractCegarLoop]: Abstraction has 50912 states and 60618 transitions. [2024-11-16 04:03:55,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:55,029 INFO L276 IsEmpty]: Start isEmpty. Operand 50912 states and 60618 transitions. [2024-11-16 04:03:55,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-16 04:03:55,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:55,033 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:55,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:03:55,034 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:55,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:55,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1811810929, now seen corresponding path program 1 times [2024-11-16 04:03:55,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:55,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579101886] [2024-11-16 04:03:55,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:55,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-16 04:03:55,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:55,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579101886] [2024-11-16 04:03:55,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579101886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:55,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:55,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:55,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32018616] [2024-11-16 04:03:55,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:55,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:55,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:55,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:55,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:55,452 INFO L87 Difference]: Start difference. First operand 50912 states and 60618 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:58,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:58,829 INFO L93 Difference]: Finished difference Result 113647 states and 137368 transitions. [2024-11-16 04:03:58,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:58,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2024-11-16 04:03:58,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:58,903 INFO L225 Difference]: With dead ends: 113647 [2024-11-16 04:03:58,903 INFO L226 Difference]: Without dead ends: 63525 [2024-11-16 04:03:58,942 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 [2024-11-16 04:03:58,943 INFO L432 NwaCegarLoop]: 1809 mSDtfsCounter, 834 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 3274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:58,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1962 Invalid, 3274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [727 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 04:03:58,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63525 states. [2024-11-16 04:03:59,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63525 to 62730. [2024-11-16 04:03:59,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62730 states, 62729 states have (on average 1.1721372889732022) internal successors, (73527), 62729 states have internal predecessors, (73527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62730 states to 62730 states and 73527 transitions. [2024-11-16 04:03:59,865 INFO L78 Accepts]: Start accepts. Automaton has 62730 states and 73527 transitions. Word has length 326 [2024-11-16 04:03:59,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:59,865 INFO L471 AbstractCegarLoop]: Abstraction has 62730 states and 73527 transitions. [2024-11-16 04:03:59,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 62730 states and 73527 transitions. [2024-11-16 04:03:59,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-16 04:03:59,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:59,874 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:59,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:03:59,875 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:59,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:59,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1445006200, now seen corresponding path program 1 times [2024-11-16 04:03:59,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:59,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901244266] [2024-11-16 04:03:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:59,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-16 04:04:00,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:00,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901244266] [2024-11-16 04:04:00,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901244266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:00,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:00,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:00,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988054977] [2024-11-16 04:04:00,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:00,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:00,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:00,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:00,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:00,394 INFO L87 Difference]: Start difference. First operand 62730 states and 73527 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:03,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:03,655 INFO L93 Difference]: Finished difference Result 135688 states and 161139 transitions. [2024-11-16 04:04:03,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:03,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 352 [2024-11-16 04:04:03,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:03,739 INFO L225 Difference]: With dead ends: 135688 [2024-11-16 04:04:03,740 INFO L226 Difference]: Without dead ends: 73748 [2024-11-16 04:04:03,765 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 [2024-11-16 04:04:03,766 INFO L432 NwaCegarLoop]: 1473 mSDtfsCounter, 1134 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 3174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:03,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 1564 Invalid, 3174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 04:04:03,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73748 states. [2024-11-16 04:04:04,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73748 to 73747. [2024-11-16 04:04:04,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73747 states, 73746 states have (on average 1.1487267106012529) internal successors, (84714), 73746 states have internal predecessors, (84714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73747 states to 73747 states and 84714 transitions. [2024-11-16 04:04:04,881 INFO L78 Accepts]: Start accepts. Automaton has 73747 states and 84714 transitions. Word has length 352 [2024-11-16 04:04:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:04,882 INFO L471 AbstractCegarLoop]: Abstraction has 73747 states and 84714 transitions. [2024-11-16 04:04:04,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 73747 states and 84714 transitions. [2024-11-16 04:04:04,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-16 04:04:04,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:04,906 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:04,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:04:04,907 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:04,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:04,907 INFO L85 PathProgramCache]: Analyzing trace with hash 734022107, now seen corresponding path program 1 times [2024-11-16 04:04:04,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:04,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170386101] [2024-11-16 04:04:04,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:04,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-16 04:04:05,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:05,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170386101] [2024-11-16 04:04:05,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170386101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:05,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:05,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:05,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996955606] [2024-11-16 04:04:05,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:05,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:05,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:05,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:05,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:05,370 INFO L87 Difference]: Start difference. First operand 73747 states and 84714 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:09,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:09,209 INFO L93 Difference]: Finished difference Result 145909 states and 167766 transitions. [2024-11-16 04:04:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:09,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 431 [2024-11-16 04:04:09,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:09,290 INFO L225 Difference]: With dead ends: 145909 [2024-11-16 04:04:09,290 INFO L226 Difference]: Without dead ends: 72952 [2024-11-16 04:04:09,322 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 [2024-11-16 04:04:09,323 INFO L432 NwaCegarLoop]: 1715 mSDtfsCounter, 797 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 3182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:09,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1859 Invalid, 3182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-16 04:04:09,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72952 states. [2024-11-16 04:04:09,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72952 to 72933. [2024-11-16 04:04:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72933 states, 72932 states have (on average 1.104343772281029) internal successors, (80542), 72932 states have internal predecessors, (80542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:10,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72933 states to 72933 states and 80542 transitions. [2024-11-16 04:04:10,081 INFO L78 Accepts]: Start accepts. Automaton has 72933 states and 80542 transitions. Word has length 431 [2024-11-16 04:04:10,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:10,081 INFO L471 AbstractCegarLoop]: Abstraction has 72933 states and 80542 transitions. [2024-11-16 04:04:10,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:10,082 INFO L276 IsEmpty]: Start isEmpty. Operand 72933 states and 80542 transitions. [2024-11-16 04:04:10,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-16 04:04:10,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:10,091 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:10,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:04:10,091 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:10,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:10,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1483912923, now seen corresponding path program 1 times [2024-11-16 04:04:10,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:10,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10647736] [2024-11-16 04:04:10,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:10,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:10,546 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 04:04:10,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:10,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10647736] [2024-11-16 04:04:10,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10647736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:10,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:10,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:10,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689913281] [2024-11-16 04:04:10,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:10,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:10,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:10,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:10,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:10,549 INFO L87 Difference]: Start difference. First operand 72933 states and 80542 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:14,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:14,089 INFO L93 Difference]: Finished difference Result 197850 states and 217699 transitions. [2024-11-16 04:04:14,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:14,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 458 [2024-11-16 04:04:14,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:14,386 INFO L225 Difference]: With dead ends: 197850 [2024-11-16 04:04:14,386 INFO L226 Difference]: Without dead ends: 121764 [2024-11-16 04:04:14,424 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 [2024-11-16 04:04:14,425 INFO L432 NwaCegarLoop]: 1748 mSDtfsCounter, 850 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 779 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 779 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:14,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1878 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [779 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 04:04:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121764 states. [2024-11-16 04:04:15,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121764 to 115453. [2024-11-16 04:04:15,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115453 states, 115452 states have (on average 1.0786820496829852) internal successors, (124536), 115452 states have internal predecessors, (124536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115453 states to 115453 states and 124536 transitions. [2024-11-16 04:04:15,801 INFO L78 Accepts]: Start accepts. Automaton has 115453 states and 124536 transitions. Word has length 458 [2024-11-16 04:04:15,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:15,802 INFO L471 AbstractCegarLoop]: Abstraction has 115453 states and 124536 transitions. [2024-11-16 04:04:15,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:15,803 INFO L276 IsEmpty]: Start isEmpty. Operand 115453 states and 124536 transitions. [2024-11-16 04:04:15,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-16 04:04:15,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:15,817 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:15,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:04:15,817 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:15,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:15,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1352061101, now seen corresponding path program 1 times [2024-11-16 04:04:15,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:15,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759013617] [2024-11-16 04:04:15,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:15,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 302 proven. 111 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 04:04:17,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:17,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759013617] [2024-11-16 04:04:17,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759013617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:04:17,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696561596] [2024-11-16 04:04:17,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:17,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:04:17,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:04:17,598 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) [2024-11-16 04:04:17,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:04:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:17,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:04:17,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:04:18,038 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-16 04:04:18,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:04:18,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696561596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:18,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:04:18,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:04:18,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120314644] [2024-11-16 04:04:18,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:18,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:18,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:18,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:18,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:04:18,041 INFO L87 Difference]: Start difference. First operand 115453 states and 124536 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:21,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:21,143 INFO L93 Difference]: Finished difference Result 230105 states and 248267 transitions. [2024-11-16 04:04:21,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:21,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 460 [2024-11-16 04:04:21,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:21,283 INFO L225 Difference]: With dead ends: 230105 [2024-11-16 04:04:21,283 INFO L226 Difference]: Without dead ends: 115442 [2024-11-16 04:04:21,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:04:21,319 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 948 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:21,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 727 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 2355 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 04:04:21,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115442 states.