./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label46.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_label46.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 829096e7f479f5346a6eede2bd426bfcc729b36401312306aa48ba670b26d42a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:02:06,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:02:06,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:02:06,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:02:06,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:02:06,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:02:06,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:02:06,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:02:06,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:02:06,346 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:02:06,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:02:06,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:02:06,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:02:06,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:02:06,352 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:02:06,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:02:06,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:02:06,353 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:02:06,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:02:06,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:02:06,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:02:06,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:02:06,358 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:02:06,358 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:02:06,359 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:02:06,359 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:02:06,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:02:06,359 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:02:06,360 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:02:06,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:02:06,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:02:06,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:02:06,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:02:06,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:02:06,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:02:06,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:02:06,364 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:02:06,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:02:06,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:02:06,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:02:06,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:02:06,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:02:06,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 829096e7f479f5346a6eede2bd426bfcc729b36401312306aa48ba670b26d42a [2024-11-16 04:02:06,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:02:06,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:02:06,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:02:06,626 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:02:06,626 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:02:06,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label46.c [2024-11-16 04:02:08,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:02:08,514 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:02:08,516 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label46.c [2024-11-16 04:02:08,549 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6da663800/e17d5996168c4769bf9f8bcc820ec44d/FLAG98c697aea [2024-11-16 04:02:08,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6da663800/e17d5996168c4769bf9f8bcc820ec44d [2024-11-16 04:02:08,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:02:08,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:02:08,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:02:08,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:02:08,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:02:08,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:02:08" (1/1) ... [2024-11-16 04:02:08,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286a17e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:08, skipping insertion in model container [2024-11-16 04:02:08,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:02:08" (1/1) ... [2024-11-16 04:02:08,775 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:02:09,090 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_label46.c[9366,9379] [2024-11-16 04:02:09,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:02:09,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:02:10,009 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_label46.c[9366,9379] [2024-11-16 04:02:10,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:02:10,552 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:02:10,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10 WrapperNode [2024-11-16 04:02:10,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:02:10,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:02:10,554 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:02:10,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:02:10,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:10,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,137 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-16 04:02:11,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:02:11,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:02:11,139 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:02:11,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:02:11,149 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,527 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 04:02:11,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,770 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:02:11,937 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:02:11,937 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:02:11,938 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:02:11,938 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (1/1) ... [2024-11-16 04:02:11,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:02:11,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:02:11,973 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 04:02:11,975 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 04:02:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:02:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:02:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:02:12,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:02:12,082 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:02:12,083 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:02:17,386 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-16 04:02:17,386 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-16 04:02:17,386 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-16 04:02:17,571 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-16 04:02:17,572 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:02:17,615 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:02:17,615 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:02:17,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:02:17 BoogieIcfgContainer [2024-11-16 04:02:17,616 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:02:17,619 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:02:17,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:02:17,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:02:17,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:02:08" (1/3) ... [2024-11-16 04:02:17,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629fc94a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:02:17, skipping insertion in model container [2024-11-16 04:02:17,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:02:10" (2/3) ... [2024-11-16 04:02:17,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629fc94a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:02:17, skipping insertion in model container [2024-11-16 04:02:17,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:02:17" (3/3) ... [2024-11-16 04:02:17,627 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label46.c [2024-11-16 04:02:17,647 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:02:17,648 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:02:17,756 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:02:17,764 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;@7ed858fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:02:17,764 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:02:17,773 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 04:02:17,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 04:02:17,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:02:17,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:02:17,785 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:02:17,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:02:17,791 INFO L85 PathProgramCache]: Analyzing trace with hash -753335010, now seen corresponding path program 1 times [2024-11-16 04:02:17,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:02:17,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811379631] [2024-11-16 04:02:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:02:17,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:02:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:02:18,555 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 04:02:18,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:02:18,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811379631] [2024-11-16 04:02:18,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811379631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:02:18,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:02:18,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:02:18,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532956917] [2024-11-16 04:02:18,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:02:18,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:02:18,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:02:18,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:02:18,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:02:18,591 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 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 04:02:24,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:02:24,811 INFO L93 Difference]: Finished difference Result 3836 states and 7213 transitions. [2024-11-16 04:02:24,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:02:24,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2024-11-16 04:02:24,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:02:24,840 INFO L225 Difference]: With dead ends: 3836 [2024-11-16 04:02:24,841 INFO L226 Difference]: Without dead ends: 2668 [2024-11-16 04:02:24,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:02:24,850 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 2663 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 4246 mSolverCounterSat, 1607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2663 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 5853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1607 IncrementalHoareTripleChecker+Valid, 4246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:02:24,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2663 Valid, 1057 Invalid, 5853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1607 Valid, 4246 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-16 04:02:24,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2024-11-16 04:02:24,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2667. [2024-11-16 04:02:24,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 1.4602400600150038) internal successors, (3893), 2666 states have internal predecessors, (3893), 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 04:02:24,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3893 transitions. [2024-11-16 04:02:24,992 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3893 transitions. Word has length 68 [2024-11-16 04:02:24,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:02:24,993 INFO L471 AbstractCegarLoop]: Abstraction has 2667 states and 3893 transitions. [2024-11-16 04:02:24,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 04:02:24,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3893 transitions. [2024-11-16 04:02:25,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-16 04:02:25,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:02:25,001 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:02:25,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:02:25,002 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:02:25,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:02:25,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1260990302, now seen corresponding path program 1 times [2024-11-16 04:02:25,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:02:25,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110150684] [2024-11-16 04:02:25,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:02:25,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:02:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:02:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-16 04:02:25,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:02:25,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110150684] [2024-11-16 04:02:25,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110150684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:02:25,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:02:25,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:02:25,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911098463] [2024-11-16 04:02:25,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:02:25,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:02:25,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:02:25,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:02:25,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:02:25,407 INFO L87 Difference]: Start difference. First operand 2667 states and 3893 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 04:02:29,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:02:29,014 INFO L93 Difference]: Finished difference Result 6151 states and 9721 transitions. [2024-11-16 04:02:29,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:02:29,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 194 [2024-11-16 04:02:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:02:29,032 INFO L225 Difference]: With dead ends: 6151 [2024-11-16 04:02:29,033 INFO L226 Difference]: Without dead ends: 4274 [2024-11-16 04:02:29,038 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 04:02:29,039 INFO L432 NwaCegarLoop]: 1040 mSDtfsCounter, 743 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2508 mSolverCounterSat, 778 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 778 IncrementalHoareTripleChecker+Valid, 2508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:02:29,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1191 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [778 Valid, 2508 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-16 04:02:29,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4274 states. [2024-11-16 04:02:29,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4274 to 4260. [2024-11-16 04:02:29,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4260 states, 4259 states have (on average 1.351021366517962) internal successors, (5754), 4259 states have internal predecessors, (5754), 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 04:02:29,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 5754 transitions. [2024-11-16 04:02:29,121 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 5754 transitions. Word has length 194 [2024-11-16 04:02:29,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:02:29,122 INFO L471 AbstractCegarLoop]: Abstraction has 4260 states and 5754 transitions. [2024-11-16 04:02:29,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 04:02:29,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 5754 transitions. [2024-11-16 04:02:29,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-16 04:02:29,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:02:29,127 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:29,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:02:29,128 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:02:29,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:02:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1151955879, now seen corresponding path program 1 times [2024-11-16 04:02:29,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:02:29,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123039942] [2024-11-16 04:02:29,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:02:29,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:02:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:02:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 04:02:29,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:02:29,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123039942] [2024-11-16 04:02:29,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123039942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:02:29,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:02:29,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:02:29,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304526119] [2024-11-16 04:02:29,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:02:29,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:02:29,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:02:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:02:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:02:29,469 INFO L87 Difference]: Start difference. First operand 4260 states and 5754 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 04:02:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:02:32,583 INFO L93 Difference]: Finished difference Result 10915 states and 15291 transitions. [2024-11-16 04:02:32,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:02:32,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 237 [2024-11-16 04:02:32,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:02:32,614 INFO L225 Difference]: With dead ends: 10915 [2024-11-16 04:02:32,616 INFO L226 Difference]: Without dead ends: 7445 [2024-11-16 04:02:32,624 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 04:02:32,626 INFO L432 NwaCegarLoop]: 828 mSDtfsCounter, 907 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 754 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 3322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 754 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:02:32,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 962 Invalid, 3322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [754 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 04:02:32,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7445 states. [2024-11-16 04:02:32,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7445 to 7436. [2024-11-16 04:02:32,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 7435 states have (on average 1.288500336247478) internal successors, (9580), 7435 states have internal predecessors, (9580), 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 04:02:32,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 9580 transitions. [2024-11-16 04:02:32,762 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 9580 transitions. Word has length 237 [2024-11-16 04:02:32,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:02:32,766 INFO L471 AbstractCegarLoop]: Abstraction has 7436 states and 9580 transitions. [2024-11-16 04:02:32,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 04:02:32,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 9580 transitions. [2024-11-16 04:02:32,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 04:02:32,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:02:32,772 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:02:32,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:02:32,772 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:02:32,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:02:32,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1022384914, now seen corresponding path program 1 times [2024-11-16 04:02:32,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:02:32,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842140286] [2024-11-16 04:02:32,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:02:32,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:02:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:02:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 04:02:33,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:02:33,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842140286] [2024-11-16 04:02:33,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842140286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:02:33,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:02:33,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:02:33,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122374627] [2024-11-16 04:02:33,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:02:33,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:02:33,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:02:33,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:02:33,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:02:33,034 INFO L87 Difference]: Start difference. First operand 7436 states and 9580 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 04:02:37,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:02:37,139 INFO L93 Difference]: Finished difference Result 19648 states and 25932 transitions. [2024-11-16 04:02:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:02:37,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 251 [2024-11-16 04:02:37,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:02:37,185 INFO L225 Difference]: With dead ends: 19648 [2024-11-16 04:02:37,185 INFO L226 Difference]: Without dead ends: 13002 [2024-11-16 04:02:37,195 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 04:02:37,196 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 910 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 2890 mSolverCounterSat, 539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 3429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 2890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:02:37,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 645 Invalid, 3429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 2890 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-16 04:02:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13002 states. [2024-11-16 04:02:37,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13002 to 12992. [2024-11-16 04:02:37,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12992 states, 12991 states have (on average 1.2717265799399584) internal successors, (16521), 12991 states have internal predecessors, (16521), 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 04:02:37,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12992 states to 12992 states and 16521 transitions. [2024-11-16 04:02:37,424 INFO L78 Accepts]: Start accepts. Automaton has 12992 states and 16521 transitions. Word has length 251 [2024-11-16 04:02:37,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:02:37,425 INFO L471 AbstractCegarLoop]: Abstraction has 12992 states and 16521 transitions. [2024-11-16 04:02:37,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 04:02:37,426 INFO L276 IsEmpty]: Start isEmpty. Operand 12992 states and 16521 transitions. [2024-11-16 04:02:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-16 04:02:37,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:02:37,433 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:37,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:02:37,434 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:02:37,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:02:37,435 INFO L85 PathProgramCache]: Analyzing trace with hash -686903713, now seen corresponding path program 1 times [2024-11-16 04:02:37,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:02:37,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515699375] [2024-11-16 04:02:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:02:37,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:02:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:02:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-16 04:02:37,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:02:37,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515699375] [2024-11-16 04:02:37,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515699375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:02:37,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:02:37,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:02:37,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405216576] [2024-11-16 04:02:37,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:02:37,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:02:37,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:02:37,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:02:37,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:02:37,737 INFO L87 Difference]: Start difference. First operand 12992 states and 16521 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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 04:02:40,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:02:40,941 INFO L93 Difference]: Finished difference Result 36227 states and 46645 transitions. [2024-11-16 04:02:40,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:02:40,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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 267 [2024-11-16 04:02:40,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:02:40,998 INFO L225 Difference]: With dead ends: 36227 [2024-11-16 04:02:40,998 INFO L226 Difference]: Without dead ends: 24025 [2024-11-16 04:02:41,013 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 04:02:41,016 INFO L432 NwaCegarLoop]: 839 mSDtfsCounter, 858 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 869 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 3177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 869 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:02:41,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 987 Invalid, 3177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [869 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 04:02:41,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24025 states. [2024-11-16 04:02:41,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24025 to 23233. [2024-11-16 04:02:41,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23233 states, 23232 states have (on average 1.2064824380165289) internal successors, (28029), 23232 states have internal predecessors, (28029), 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 04:02:41,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23233 states to 23233 states and 28029 transitions. [2024-11-16 04:02:41,341 INFO L78 Accepts]: Start accepts. Automaton has 23233 states and 28029 transitions. Word has length 267 [2024-11-16 04:02:41,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:02:41,342 INFO L471 AbstractCegarLoop]: Abstraction has 23233 states and 28029 transitions. [2024-11-16 04:02:41,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 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 04:02:41,343 INFO L276 IsEmpty]: Start isEmpty. Operand 23233 states and 28029 transitions. [2024-11-16 04:02:41,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-16 04:02:41,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:02:41,347 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:02:41,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:02:41,347 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:02:41,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:02:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1269318459, now seen corresponding path program 1 times [2024-11-16 04:02:41,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:02:41,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984044901] [2024-11-16 04:02:41,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:02:41,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:02:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:02:41,558 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:02:41,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:02:41,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984044901] [2024-11-16 04:02:41,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984044901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:02:41,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:02:41,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:02:41,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838631609] [2024-11-16 04:02:41,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:02:41,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:02:41,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:02:41,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:02:41,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:02:41,560 INFO L87 Difference]: Start difference. First operand 23233 states and 28029 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 04:02:45,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:02:45,072 INFO L93 Difference]: Finished difference Result 57506 states and 70847 transitions. [2024-11-16 04:02:45,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:02:45,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 269 [2024-11-16 04:02:45,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:02:45,147 INFO L225 Difference]: With dead ends: 57506 [2024-11-16 04:02:45,148 INFO L226 Difference]: Without dead ends: 35063 [2024-11-16 04:02:45,178 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 04:02:45,180 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 861 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 914 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 3295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 914 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:02:45,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 924 Invalid, 3295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [914 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 04:02:45,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35063 states. [2024-11-16 04:02:45,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35063 to 35054. [2024-11-16 04:02:45,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35054 states, 35053 states have (on average 1.1835506233417967) internal successors, (41487), 35053 states have internal predecessors, (41487), 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 04:02:45,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35054 states to 35054 states and 41487 transitions. [2024-11-16 04:02:45,639 INFO L78 Accepts]: Start accepts. Automaton has 35054 states and 41487 transitions. Word has length 269 [2024-11-16 04:02:45,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:02:45,640 INFO L471 AbstractCegarLoop]: Abstraction has 35054 states and 41487 transitions. [2024-11-16 04:02:45,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 04:02:45,640 INFO L276 IsEmpty]: Start isEmpty. Operand 35054 states and 41487 transitions. [2024-11-16 04:02:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-16 04:02:45,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:02:45,648 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 04:02:45,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:02:45,648 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:02:45,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:02:45,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1454251296, now seen corresponding path program 1 times [2024-11-16 04:02:45,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:02:45,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119156419] [2024-11-16 04:02:45,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:02:45,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:02:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:02:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-16 04:02:45,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:02:45,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119156419] [2024-11-16 04:02:45,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119156419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:02:45,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:02:45,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:02:45,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135669294] [2024-11-16 04:02:45,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:02:45,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:02:45,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:02:45,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:02:45,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:02:45,943 INFO L87 Difference]: Start difference. First operand 35054 states and 41487 transitions. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 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 04:02:52,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:02:52,159 INFO L93 Difference]: Finished difference Result 122343 states and 146108 transitions. [2024-11-16 04:02:52,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:02:52,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 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 354 [2024-11-16 04:02:52,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:02:52,303 INFO L225 Difference]: With dead ends: 122343 [2024-11-16 04:02:52,303 INFO L226 Difference]: Without dead ends: 88079 [2024-11-16 04:02:52,357 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 04:02:52,358 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 1731 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 6676 mSolverCounterSat, 1117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1731 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 7793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1117 IncrementalHoareTripleChecker+Valid, 6676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:02:52,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1731 Valid, 755 Invalid, 7793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1117 Valid, 6676 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-16 04:02:52,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88079 states. [2024-11-16 04:02:53,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88079 to 87948. [2024-11-16 04:02:53,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87948 states, 87947 states have (on average 1.1672711974257224) internal successors, (102658), 87947 states have internal predecessors, (102658), 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 04:02:53,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87948 states to 87948 states and 102658 transitions. [2024-11-16 04:02:53,430 INFO L78 Accepts]: Start accepts. Automaton has 87948 states and 102658 transitions. Word has length 354 [2024-11-16 04:02:53,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:02:53,431 INFO L471 AbstractCegarLoop]: Abstraction has 87948 states and 102658 transitions. [2024-11-16 04:02:53,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 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 04:02:53,431 INFO L276 IsEmpty]: Start isEmpty. Operand 87948 states and 102658 transitions. [2024-11-16 04:02:53,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-16 04:02:53,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:02:53,445 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, 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, 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] [2024-11-16 04:02:53,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:02:53,445 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:02:53,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:02:53,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1718550934, now seen corresponding path program 1 times [2024-11-16 04:02:53,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:02:53,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503736323] [2024-11-16 04:02:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:02:53,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:02:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:02:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 396 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-16 04:02:53,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:02:53,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503736323] [2024-11-16 04:02:53,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503736323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:02:53,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:02:53,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:02:53,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439554736] [2024-11-16 04:02:53,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:02:53,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:02:53,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:02:53,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:02:53,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:02:53,807 INFO L87 Difference]: Start difference. First operand 87948 states and 102658 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 04:02:57,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:02:57,841 INFO L93 Difference]: Finished difference Result 175141 states and 204578 transitions. [2024-11-16 04:02:57,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:02:57,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 368 [2024-11-16 04:02:57,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:02:58,005 INFO L225 Difference]: With dead ends: 175141 [2024-11-16 04:02:58,006 INFO L226 Difference]: Without dead ends: 87983 [2024-11-16 04:02:58,078 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 04:02:58,083 INFO L432 NwaCegarLoop]: 1854 mSDtfsCounter, 755 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 2597 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:02:58,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 1996 Invalid, 2908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2597 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 04:02:58,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87983 states. [2024-11-16 04:02:59,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87983 to 87949. [2024-11-16 04:02:59,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87949 states, 87948 states have (on average 1.1514645017510348) internal successors, (101269), 87948 states have internal predecessors, (101269), 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 04:02:59,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87949 states to 87949 states and 101269 transitions. [2024-11-16 04:02:59,306 INFO L78 Accepts]: Start accepts. Automaton has 87949 states and 101269 transitions. Word has length 368 [2024-11-16 04:02:59,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:02:59,306 INFO L471 AbstractCegarLoop]: Abstraction has 87949 states and 101269 transitions. [2024-11-16 04:02:59,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 04:02:59,306 INFO L276 IsEmpty]: Start isEmpty. Operand 87949 states and 101269 transitions. [2024-11-16 04:02:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-11-16 04:02:59,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:02:59,317 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, 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, 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, 1, 1, 1, 1, 1, 1, 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 04:02:59,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:02:59,317 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:02:59,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:02:59,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1215438803, now seen corresponding path program 1 times [2024-11-16 04:02:59,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:02:59,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356398817] [2024-11-16 04:02:59,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:02:59,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:02:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:02:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-16 04:02:59,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:02:59,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356398817] [2024-11-16 04:02:59,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356398817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:02:59,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:02:59,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:02:59,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836035516] [2024-11-16 04:02:59,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:02:59,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:02:59,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:02:59,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:02:59,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:02:59,749 INFO L87 Difference]: Start difference. First operand 87949 states and 101269 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 04:03:03,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:03,043 INFO L93 Difference]: Finished difference Result 175870 states and 202315 transitions. [2024-11-16 04:03:03,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:03,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 388 [2024-11-16 04:03:03,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:03,302 INFO L225 Difference]: With dead ends: 175870 [2024-11-16 04:03:03,303 INFO L226 Difference]: Without dead ends: 88711 [2024-11-16 04:03:03,323 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 04:03:03,324 INFO L432 NwaCegarLoop]: 1515 mSDtfsCounter, 1038 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 2348 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:03,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 1652 Invalid, 2943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2348 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 04:03:03,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88711 states. [2024-11-16 04:03:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88711 to 81604. [2024-11-16 04:03:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81604 states, 81603 states have (on average 1.1041505826991656) internal successors, (90102), 81603 states have internal predecessors, (90102), 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 04:03:04,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81604 states to 81604 states and 90102 transitions. [2024-11-16 04:03:04,239 INFO L78 Accepts]: Start accepts. Automaton has 81604 states and 90102 transitions. Word has length 388 [2024-11-16 04:03:04,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:04,239 INFO L471 AbstractCegarLoop]: Abstraction has 81604 states and 90102 transitions. [2024-11-16 04:03:04,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 04:03:04,239 INFO L276 IsEmpty]: Start isEmpty. Operand 81604 states and 90102 transitions. [2024-11-16 04:03:04,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-11-16 04:03:04,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:04,248 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:04,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:03:04,248 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:04,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:04,249 INFO L85 PathProgramCache]: Analyzing trace with hash -253354871, now seen corresponding path program 1 times [2024-11-16 04:03:04,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:04,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335554234] [2024-11-16 04:03:04,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:04,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:06,179 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 303 proven. 111 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-16 04:03:06,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:06,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335554234] [2024-11-16 04:03:06,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335554234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:03:06,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150403645] [2024-11-16 04:03:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:06,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:03:06,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:03:06,182 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 04:03:06,183 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 04:03:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:06,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:03:06,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:03:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-16 04:03:06,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:03:06,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150403645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:06,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:03:06,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:03:06,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648041332] [2024-11-16 04:03:06,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:06,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:06,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:06,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:06,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:03:06,584 INFO L87 Difference]: Start difference. First operand 81604 states and 90102 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:09,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:09,712 INFO L93 Difference]: Finished difference Result 162416 states and 179408 transitions. [2024-11-16 04:03:09,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:09,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 397 [2024-11-16 04:03:09,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:09,807 INFO L225 Difference]: With dead ends: 162416 [2024-11-16 04:03:09,807 INFO L226 Difference]: Without dead ends: 81602 [2024-11-16 04:03:09,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 396 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 04:03:09,993 INFO L432 NwaCegarLoop]: 1349 mSDtfsCounter, 1113 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 2907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:09,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 1431 Invalid, 2907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 04:03:10,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81602 states. [2024-11-16 04:03:10,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81602 to 81601. [2024-11-16 04:03:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81601 states, 81600 states have (on average 1.0791299019607843) internal successors, (88057), 81600 states have internal predecessors, (88057), 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 04:03:10,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81601 states to 81601 states and 88057 transitions. [2024-11-16 04:03:10,957 INFO L78 Accepts]: Start accepts. Automaton has 81601 states and 88057 transitions. Word has length 397 [2024-11-16 04:03:10,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:10,958 INFO L471 AbstractCegarLoop]: Abstraction has 81601 states and 88057 transitions. [2024-11-16 04:03:10,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand 81601 states and 88057 transitions. [2024-11-16 04:03:10,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-16 04:03:10,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:10,965 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, 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-16 04:03:10,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:03:11,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 04:03:11,166 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:11,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:11,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1537158381, now seen corresponding path program 1 times [2024-11-16 04:03:11,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:11,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130485321] [2024-11-16 04:03:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:11,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2024-11-16 04:03:11,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:11,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130485321] [2024-11-16 04:03:11,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130485321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:11,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:11,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:11,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847278152] [2024-11-16 04:03:11,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:11,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:11,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:11,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:11,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:11,919 INFO L87 Difference]: Start difference. First operand 81601 states and 88057 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 04:03:16,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:16,201 INFO L93 Difference]: Finished difference Result 213773 states and 231701 transitions. [2024-11-16 04:03:16,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:16,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 401 [2024-11-16 04:03:16,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:16,348 INFO L225 Difference]: With dead ends: 213773 [2024-11-16 04:03:16,349 INFO L226 Difference]: Without dead ends: 132172 [2024-11-16 04:03:16,397 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 04:03:16,398 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 931 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 3139 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 3730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 3139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:16,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 687 Invalid, 3730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 3139 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-16 04:03:16,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132172 states. [2024-11-16 04:03:17,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132172 to 125755. [2024-11-16 04:03:17,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125755 states, 125754 states have (on average 1.087154285350764) internal successors, (136714), 125754 states have internal predecessors, (136714), 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 04:03:18,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125755 states to 125755 states and 136714 transitions. [2024-11-16 04:03:18,149 INFO L78 Accepts]: Start accepts. Automaton has 125755 states and 136714 transitions. Word has length 401 [2024-11-16 04:03:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:18,150 INFO L471 AbstractCegarLoop]: Abstraction has 125755 states and 136714 transitions. [2024-11-16 04:03:18,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 04:03:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 125755 states and 136714 transitions. [2024-11-16 04:03:18,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-16 04:03:18,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:18,168 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:18,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:03:18,169 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:18,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:18,169 INFO L85 PathProgramCache]: Analyzing trace with hash -889267038, now seen corresponding path program 1 times [2024-11-16 04:03:18,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:18,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013150165] [2024-11-16 04:03:18,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:18,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-16 04:03:19,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:19,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013150165] [2024-11-16 04:03:19,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013150165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:19,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:19,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:19,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64507922] [2024-11-16 04:03:19,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:19,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:19,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:19,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:19,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:19,164 INFO L87 Difference]: Start difference. First operand 125755 states and 136714 transitions. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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)