./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/Problem12_label18.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 2e51d75a8ad9c92226cf9c3e34cc8785c0e5af56e84d6fc07c305ea014e608b6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:25:57,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:25:57,590 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:25:57,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:25:57,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:25:57,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:25:57,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:25:57,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:25:57,611 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:25:57,612 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:25:57,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:25:57,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:25:57,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:25:57,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:25:57,614 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:25:57,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:25:57,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:25:57,615 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:25:57,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:25:57,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:25:57,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:25:57,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:25:57,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:25:57,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:25:57,618 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:25:57,619 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:25:57,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:25:57,621 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:25:57,621 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:25:57,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:25:57,622 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:25:57,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:25:57,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:25:57,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:25:57,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:25:57,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:25:57,622 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:25:57,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:25:57,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:25:57,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:25:57,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:25:57,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:25:57,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e51d75a8ad9c92226cf9c3e34cc8785c0e5af56e84d6fc07c305ea014e608b6 [2024-11-09 19:25:57,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:25:57,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:25:57,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:25:57,838 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:25:57,838 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:25:57,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label18.c [2024-11-09 19:25:59,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:25:59,327 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:25:59,327 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label18.c [2024-11-09 19:25:59,355 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a72dc812/e56d5b09c53145768d8b05daf36c1b28/FLAGda938847f [2024-11-09 19:25:59,582 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a72dc812/e56d5b09c53145768d8b05daf36c1b28 [2024-11-09 19:25:59,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:25:59,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:25:59,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:25:59,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:25:59,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:25:59,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:59" (1/1) ... [2024-11-09 19:25:59,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609e9a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:59, skipping insertion in model container [2024-11-09 19:25:59,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:59" (1/1) ... [2024-11-09 19:25:59,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:25:59,884 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/Problem12_label18.c[6604,6617] [2024-11-09 19:26:00,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:26:00,361 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:26:00,383 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/Problem12_label18.c[6604,6617] [2024-11-09 19:26:00,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:26:00,701 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:26:00,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00 WrapperNode [2024-11-09 19:26:00,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:26:00,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:26:00,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:26:00,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:26:00,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:00,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:00,956 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-09 19:26:00,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:26:00,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:26:00,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:26:00,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:26:00,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:00,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:00,988 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:01,138 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]. [2024-11-09 19:26:01,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:01,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:01,308 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:01,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:01,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:01,393 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:01,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:26:01,468 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:26:01,469 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:26:01,469 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:26:01,470 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (1/1) ... [2024-11-09 19:26:01,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:26:01,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:26:01,496 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) [2024-11-09 19:26:01,498 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 [2024-11-09 19:26:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:26:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:26:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:26:01,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:26:01,588 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:26:01,589 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:26:05,489 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-09 19:26:05,489 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-09 19:26:05,489 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-09 19:26:05,715 INFO L? ?]: Removed 2039 outVars from TransFormulas that were not future-live. [2024-11-09 19:26:05,715 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:26:05,749 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:26:05,750 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:26:05,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:26:05 BoogieIcfgContainer [2024-11-09 19:26:05,750 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:26:05,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:26:05,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:26:05,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:26:05,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:25:59" (1/3) ... [2024-11-09 19:26:05,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5628b8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:26:05, skipping insertion in model container [2024-11-09 19:26:05,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:00" (2/3) ... [2024-11-09 19:26:05,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5628b8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:26:05, skipping insertion in model container [2024-11-09 19:26:05,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:26:05" (3/3) ... [2024-11-09 19:26:05,759 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label18.c [2024-11-09 19:26:05,771 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:26:05,772 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:26:05,843 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:26:05,848 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;@4a6d480f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:26:05,848 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:26:05,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 2.744810744810745) internal successors, (2248), 820 states have internal predecessors, (2248), 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) [2024-11-09 19:26:05,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 19:26:05,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:05,861 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] [2024-11-09 19:26:05,862 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:05,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:05,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1335986933, now seen corresponding path program 1 times [2024-11-09 19:26:05,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:05,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223543000] [2024-11-09 19:26:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:05,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:26:06,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:06,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223543000] [2024-11-09 19:26:06,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223543000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:06,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:26:06,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:26:06,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886917554] [2024-11-09 19:26:06,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:06,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:26:06,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:06,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:26:06,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:26:06,308 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 2.744810744810745) internal successors, (2248), 820 states have internal predecessors, (2248), 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 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-11-09 19:26:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:13,013 INFO L93 Difference]: Finished difference Result 3149 states and 8857 transitions. [2024-11-09 19:26:13,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:26:13,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2024-11-09 19:26:13,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:13,038 INFO L225 Difference]: With dead ends: 3149 [2024-11-09 19:26:13,039 INFO L226 Difference]: Without dead ends: 2261 [2024-11-09 19:26:13,042 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 [2024-11-09 19:26:13,044 INFO L432 NwaCegarLoop]: 740 mSDtfsCounter, 4257 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 8219 mSolverCounterSat, 1273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4257 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 9492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1273 IncrementalHoareTripleChecker+Valid, 8219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:13,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4257 Valid, 772 Invalid, 9492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1273 Valid, 8219 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-09 19:26:13,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2024-11-09 19:26:13,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2261. [2024-11-09 19:26:13,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 2260 states have (on average 2.4765486725663717) internal successors, (5597), 2260 states have internal predecessors, (5597), 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) [2024-11-09 19:26:13,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 5597 transitions. [2024-11-09 19:26:13,146 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 5597 transitions. Word has length 55 [2024-11-09 19:26:13,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:13,147 INFO L471 AbstractCegarLoop]: Abstraction has 2261 states and 5597 transitions. [2024-11-09 19:26:13,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-11-09 19:26:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 5597 transitions. [2024-11-09 19:26:13,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 19:26:13,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:13,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:26:13,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:26:13,151 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:13,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:13,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1979248614, now seen corresponding path program 1 times [2024-11-09 19:26:13,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:13,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298306795] [2024-11-09 19:26:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:13,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:26:13,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:13,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298306795] [2024-11-09 19:26:13,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298306795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:13,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:26:13,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:26:13,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878251969] [2024-11-09 19:26:13,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:13,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:26:13,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:13,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:26:13,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:26:13,392 INFO L87 Difference]: Start difference. First operand 2261 states and 5597 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 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) [2024-11-09 19:26:17,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:17,485 INFO L93 Difference]: Finished difference Result 6062 states and 15367 transitions. [2024-11-09 19:26:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:26:17,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 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 127 [2024-11-09 19:26:17,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:17,496 INFO L225 Difference]: With dead ends: 6062 [2024-11-09 19:26:17,496 INFO L226 Difference]: Without dead ends: 3765 [2024-11-09 19:26:17,498 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 [2024-11-09 19:26:17,499 INFO L432 NwaCegarLoop]: 677 mSDtfsCounter, 1383 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 5135 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 5864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 5135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:17,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 694 Invalid, 5864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 5135 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 19:26:17,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2024-11-09 19:26:17,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3013. [2024-11-09 19:26:17,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 2.3343293492695882) internal successors, (7031), 3012 states have internal predecessors, (7031), 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) [2024-11-09 19:26:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 7031 transitions. [2024-11-09 19:26:17,540 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 7031 transitions. Word has length 127 [2024-11-09 19:26:17,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:17,541 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 7031 transitions. [2024-11-09 19:26:17,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 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) [2024-11-09 19:26:17,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 7031 transitions. [2024-11-09 19:26:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-09 19:26:17,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:17,550 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, 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] [2024-11-09 19:26:17,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:26:17,550 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:17,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:17,551 INFO L85 PathProgramCache]: Analyzing trace with hash 213173835, now seen corresponding path program 1 times [2024-11-09 19:26:17,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:17,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743663902] [2024-11-09 19:26:17,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:17,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:17,967 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 103 proven. 55 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 19:26:17,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:17,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743663902] [2024-11-09 19:26:17,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743663902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:26:17,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117433624] [2024-11-09 19:26:17,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:17,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:26:17,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:26:17,972 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) [2024-11-09 19:26:17,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:26:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:18,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:26:18,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:26:18,319 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 19:26:18,319 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:26:18,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117433624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:18,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:26:18,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-09 19:26:18,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262398235] [2024-11-09 19:26:18,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:18,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:26:18,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:18,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:26:18,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:26:18,321 INFO L87 Difference]: Start difference. First operand 3013 states and 7031 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 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) [2024-11-09 19:26:21,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:21,215 INFO L93 Difference]: Finished difference Result 8280 states and 19012 transitions. [2024-11-09 19:26:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:26:21,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 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 [2024-11-09 19:26:21,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:21,231 INFO L225 Difference]: With dead ends: 8280 [2024-11-09 19:26:21,231 INFO L226 Difference]: Without dead ends: 5269 [2024-11-09 19:26:21,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:26:21,235 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 1378 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3333 mSolverCounterSat, 798 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 4131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 3333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:21,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 430 Invalid, 4131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [798 Valid, 3333 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 19:26:21,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5269 states. [2024-11-09 19:26:21,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5269 to 5269. [2024-11-09 19:26:21,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5269 states, 5268 states have (on average 2.1015565679574792) internal successors, (11071), 5268 states have internal predecessors, (11071), 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) [2024-11-09 19:26:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 11071 transitions. [2024-11-09 19:26:21,328 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 11071 transitions. Word has length 267 [2024-11-09 19:26:21,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:21,329 INFO L471 AbstractCegarLoop]: Abstraction has 5269 states and 11071 transitions. [2024-11-09 19:26:21,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 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) [2024-11-09 19:26:21,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 11071 transitions. [2024-11-09 19:26:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-09 19:26:21,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:21,334 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:26:21,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:26:21,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:26:21,537 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:21,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:21,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1708693329, now seen corresponding path program 1 times [2024-11-09 19:26:21,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:21,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743592468] [2024-11-09 19:26:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:21,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:21,891 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-09 19:26:21,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:21,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743592468] [2024-11-09 19:26:21,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743592468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:21,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:26:21,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:26:21,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425264695] [2024-11-09 19:26:21,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:21,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:26:21,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:21,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:26:21,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:26:21,893 INFO L87 Difference]: Start difference. First operand 5269 states and 11071 transitions. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-09 19:26:25,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:25,350 INFO L93 Difference]: Finished difference Result 12081 states and 25968 transitions. [2024-11-09 19:26:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:26:25,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 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 [2024-11-09 19:26:25,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:25,369 INFO L225 Difference]: With dead ends: 12081 [2024-11-09 19:26:25,369 INFO L226 Difference]: Without dead ends: 7528 [2024-11-09 19:26:25,373 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 [2024-11-09 19:26:25,374 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 1531 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 5448 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 6001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 5448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:25,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 334 Invalid, 6001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 5448 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 19:26:25,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7528 states. [2024-11-09 19:26:25,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7528 to 7525. [2024-11-09 19:26:25,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7525 states, 7524 states have (on average 2.084795321637427) internal successors, (15686), 7524 states have internal predecessors, (15686), 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) [2024-11-09 19:26:25,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7525 states to 7525 states and 15686 transitions. [2024-11-09 19:26:25,463 INFO L78 Accepts]: Start accepts. Automaton has 7525 states and 15686 transitions. Word has length 269 [2024-11-09 19:26:25,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:25,464 INFO L471 AbstractCegarLoop]: Abstraction has 7525 states and 15686 transitions. [2024-11-09 19:26:25,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-09 19:26:25,464 INFO L276 IsEmpty]: Start isEmpty. Operand 7525 states and 15686 transitions. [2024-11-09 19:26:25,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-09 19:26:25,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:25,467 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:26:25,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:26:25,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:25,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1195398856, now seen corresponding path program 1 times [2024-11-09 19:26:25,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:25,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756724519] [2024-11-09 19:26:25,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:25,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 155 proven. 110 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-09 19:26:25,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:25,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756724519] [2024-11-09 19:26:25,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756724519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:26:25,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938645419] [2024-11-09 19:26:25,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:25,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:26:25,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:26:25,811 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:26:25,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:26:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:25,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:26:25,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:26:26,056 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-09 19:26:26,058 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:26:26,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938645419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:26,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:26:26,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-09 19:26:26,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779638039] [2024-11-09 19:26:26,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:26,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:26:26,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:26,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:26:26,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:26:26,061 INFO L87 Difference]: Start difference. First operand 7525 states and 15686 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) [2024-11-09 19:26:29,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:29,117 INFO L93 Difference]: Finished difference Result 16552 states and 35130 transitions. [2024-11-09 19:26:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:26:29,118 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 347 [2024-11-09 19:26:29,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:29,135 INFO L225 Difference]: With dead ends: 16552 [2024-11-09 19:26:29,135 INFO L226 Difference]: Without dead ends: 9781 [2024-11-09 19:26:29,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:26:29,142 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 1470 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3427 mSolverCounterSat, 818 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 4245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 818 IncrementalHoareTripleChecker+Valid, 3427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:29,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 238 Invalid, 4245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [818 Valid, 3427 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 19:26:29,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9781 states. [2024-11-09 19:26:29,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 9781. [2024-11-09 19:26:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9781 states, 9780 states have (on average 2.089570552147239) internal successors, (20436), 9780 states have internal predecessors, (20436), 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) [2024-11-09 19:26:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 20436 transitions. [2024-11-09 19:26:29,272 INFO L78 Accepts]: Start accepts. Automaton has 9781 states and 20436 transitions. Word has length 347 [2024-11-09 19:26:29,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:29,274 INFO L471 AbstractCegarLoop]: Abstraction has 9781 states and 20436 transitions. [2024-11-09 19:26:29,274 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) [2024-11-09 19:26:29,274 INFO L276 IsEmpty]: Start isEmpty. Operand 9781 states and 20436 transitions. [2024-11-09 19:26:29,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-09 19:26:29,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:29,278 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:26:29,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:26:29,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:26:29,484 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:29,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:29,484 INFO L85 PathProgramCache]: Analyzing trace with hash -967549766, now seen corresponding path program 1 times [2024-11-09 19:26:29,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:29,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78022554] [2024-11-09 19:26:29,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:29,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:29,685 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-09 19:26:29,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:29,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78022554] [2024-11-09 19:26:29,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78022554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:29,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:26:29,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:26:29,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995980196] [2024-11-09 19:26:29,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:29,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:26:29,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:29,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:26:29,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:26:29,687 INFO L87 Difference]: Start difference. First operand 9781 states and 20436 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2024-11-09 19:26:32,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:32,971 INFO L93 Difference]: Finished difference Result 27080 states and 56987 transitions. [2024-11-09 19:26:32,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:26:32,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 385 [2024-11-09 19:26:32,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:33,002 INFO L225 Difference]: With dead ends: 27080 [2024-11-09 19:26:33,002 INFO L226 Difference]: Without dead ends: 18053 [2024-11-09 19:26:33,014 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 [2024-11-09 19:26:33,018 INFO L432 NwaCegarLoop]: 1941 mSDtfsCounter, 1315 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3990 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 4381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 3990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:33,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1951 Invalid, 4381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 3990 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 19:26:33,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18053 states. [2024-11-09 19:26:33,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18053 to 16549. [2024-11-09 19:26:33,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16549 states, 16548 states have (on average 2.0855692530819434) internal successors, (34512), 16548 states have internal predecessors, (34512), 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) [2024-11-09 19:26:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16549 states to 16549 states and 34512 transitions. [2024-11-09 19:26:33,352 INFO L78 Accepts]: Start accepts. Automaton has 16549 states and 34512 transitions. Word has length 385 [2024-11-09 19:26:33,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:33,353 INFO L471 AbstractCegarLoop]: Abstraction has 16549 states and 34512 transitions. [2024-11-09 19:26:33,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2024-11-09 19:26:33,353 INFO L276 IsEmpty]: Start isEmpty. Operand 16549 states and 34512 transitions. [2024-11-09 19:26:33,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-09 19:26:33,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:33,367 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:26:33,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:26:33,368 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:33,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:33,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1731922832, now seen corresponding path program 1 times [2024-11-09 19:26:33,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:33,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576471069] [2024-11-09 19:26:33,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:33,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:33,648 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-11-09 19:26:33,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:33,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576471069] [2024-11-09 19:26:33,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576471069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:33,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:26:33,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:26:33,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51499355] [2024-11-09 19:26:33,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:33,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:26:33,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:33,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:26:33,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:26:33,650 INFO L87 Difference]: Start difference. First operand 16549 states and 34512 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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) [2024-11-09 19:26:36,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:36,956 INFO L93 Difference]: Finished difference Result 39112 states and 82242 transitions. [2024-11-09 19:26:36,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:26:36,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 386 [2024-11-09 19:26:36,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:36,992 INFO L225 Difference]: With dead ends: 39112 [2024-11-09 19:26:36,993 INFO L226 Difference]: Without dead ends: 23317 [2024-11-09 19:26:37,003 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 [2024-11-09 19:26:37,004 INFO L432 NwaCegarLoop]: 2060 mSDtfsCounter, 1384 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3866 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 4340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 3866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:37,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 2070 Invalid, 4340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 3866 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 19:26:37,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23317 states. [2024-11-09 19:26:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23317 to 22565. [2024-11-09 19:26:37,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22565 states, 22564 states have (on average 2.0880163091650417) internal successors, (47114), 22564 states have internal predecessors, (47114), 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) [2024-11-09 19:26:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22565 states to 22565 states and 47114 transitions. [2024-11-09 19:26:37,216 INFO L78 Accepts]: Start accepts. Automaton has 22565 states and 47114 transitions. Word has length 386 [2024-11-09 19:26:37,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:37,217 INFO L471 AbstractCegarLoop]: Abstraction has 22565 states and 47114 transitions. [2024-11-09 19:26:37,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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) [2024-11-09 19:26:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 22565 states and 47114 transitions. [2024-11-09 19:26:37,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-09 19:26:37,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:37,226 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:26:37,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:26:37,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:37,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:37,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1888464966, now seen corresponding path program 1 times [2024-11-09 19:26:37,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:37,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567573052] [2024-11-09 19:26:37,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:37,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:37,937 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 341 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:26:37,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:37,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567573052] [2024-11-09 19:26:37,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567573052] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:26:37,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892030052] [2024-11-09 19:26:37,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:37,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:26:37,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:26:37,940 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:26:37,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:26:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:38,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 19:26:38,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:26:38,352 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 242 proven. 52 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-09 19:26:38,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:26:38,462 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 19:26:38,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892030052] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 19:26:38,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 19:26:38,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4] total 8 [2024-11-09 19:26:38,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655543963] [2024-11-09 19:26:38,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:38,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:26:38,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:38,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:26:38,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-09 19:26:38,466 INFO L87 Difference]: Start difference. First operand 22565 states and 47114 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2024-11-09 19:26:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:41,677 INFO L93 Difference]: Finished difference Result 60920 states and 128167 transitions. [2024-11-09 19:26:41,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:26:41,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 389 [2024-11-09 19:26:41,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:41,736 INFO L225 Difference]: With dead ends: 60920 [2024-11-09 19:26:41,736 INFO L226 Difference]: Without dead ends: 39109 [2024-11-09 19:26:41,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 775 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-09 19:26:41,760 INFO L432 NwaCegarLoop]: 1967 mSDtfsCounter, 1393 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3687 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 4207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 3687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:41,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 1977 Invalid, 4207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 3687 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 19:26:41,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39109 states. [2024-11-09 19:26:42,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39109 to 37605. [2024-11-09 19:26:42,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37605 states, 37604 states have (on average 2.052866716306776) internal successors, (77196), 37604 states have internal predecessors, (77196), 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) [2024-11-09 19:26:42,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37605 states to 37605 states and 77196 transitions. [2024-11-09 19:26:42,366 INFO L78 Accepts]: Start accepts. Automaton has 37605 states and 77196 transitions. Word has length 389 [2024-11-09 19:26:42,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:42,366 INFO L471 AbstractCegarLoop]: Abstraction has 37605 states and 77196 transitions. [2024-11-09 19:26:42,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2024-11-09 19:26:42,367 INFO L276 IsEmpty]: Start isEmpty. Operand 37605 states and 77196 transitions. [2024-11-09 19:26:42,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-09 19:26:42,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:42,375 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:26:42,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 19:26:42,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:26:42,580 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:42,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:42,581 INFO L85 PathProgramCache]: Analyzing trace with hash -189653356, now seen corresponding path program 1 times [2024-11-09 19:26:42,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:42,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016261403] [2024-11-09 19:26:42,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:42,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:42,819 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-09 19:26:42,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016261403] [2024-11-09 19:26:42,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016261403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:42,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:26:42,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:26:42,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222943293] [2024-11-09 19:26:42,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:42,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:26:42,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:42,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:26:42,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:26:42,820 INFO L87 Difference]: Start difference. First operand 37605 states and 77196 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2024-11-09 19:26:45,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:45,937 INFO L93 Difference]: Finished difference Result 85736 states and 177312 transitions. [2024-11-09 19:26:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:26:45,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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 418 [2024-11-09 19:26:45,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:45,999 INFO L225 Difference]: With dead ends: 85736 [2024-11-09 19:26:45,999 INFO L226 Difference]: Without dead ends: 48885 [2024-11-09 19:26:46,024 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 [2024-11-09 19:26:46,025 INFO L432 NwaCegarLoop]: 1945 mSDtfsCounter, 1349 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3582 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 1955 SdHoareTripleChecker+Invalid, 4028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 3582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:46,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 1955 Invalid, 4028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 3582 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 19:26:46,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48885 states. [2024-11-09 19:26:46,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48885 to 48133. [2024-11-09 19:26:46,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48133 states, 48132 states have (on average 2.0364206764730324) internal successors, (98017), 48132 states have internal predecessors, (98017), 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) [2024-11-09 19:26:46,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48133 states to 48133 states and 98017 transitions. [2024-11-09 19:26:46,640 INFO L78 Accepts]: Start accepts. Automaton has 48133 states and 98017 transitions. Word has length 418 [2024-11-09 19:26:46,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:46,641 INFO L471 AbstractCegarLoop]: Abstraction has 48133 states and 98017 transitions. [2024-11-09 19:26:46,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2024-11-09 19:26:46,641 INFO L276 IsEmpty]: Start isEmpty. Operand 48133 states and 98017 transitions. [2024-11-09 19:26:46,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-11-09 19:26:46,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:46,646 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:26:46,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:26:46,647 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:46,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:46,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1773120866, now seen corresponding path program 1 times [2024-11-09 19:26:46,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:46,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582532837] [2024-11-09 19:26:46,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:46,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:46,839 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 397 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-09 19:26:46,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:46,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582532837] [2024-11-09 19:26:46,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582532837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:46,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:26:46,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:26:46,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24945919] [2024-11-09 19:26:46,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:46,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:26:46,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:46,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:26:46,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:26:46,841 INFO L87 Difference]: Start difference. First operand 48133 states and 98017 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-09 19:26:50,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:50,530 INFO L93 Difference]: Finished difference Result 134616 states and 275037 transitions. [2024-11-09 19:26:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:26:50,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 444 [2024-11-09 19:26:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:50,654 INFO L225 Difference]: With dead ends: 134616 [2024-11-09 19:26:50,654 INFO L226 Difference]: Without dead ends: 87237 [2024-11-09 19:26:50,684 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 [2024-11-09 19:26:50,684 INFO L432 NwaCegarLoop]: 1984 mSDtfsCounter, 1346 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3511 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 4194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 3511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:50,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 1994 Invalid, 4194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 3511 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 19:26:50,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87237 states. [2024-11-09 19:26:51,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87237 to 80469. [2024-11-09 19:26:51,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80469 states, 80468 states have (on average 2.010923596957797) internal successors, (161815), 80468 states have internal predecessors, (161815), 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) [2024-11-09 19:26:52,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80469 states to 80469 states and 161815 transitions. [2024-11-09 19:26:52,001 INFO L78 Accepts]: Start accepts. Automaton has 80469 states and 161815 transitions. Word has length 444 [2024-11-09 19:26:52,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:52,003 INFO L471 AbstractCegarLoop]: Abstraction has 80469 states and 161815 transitions. [2024-11-09 19:26:52,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2024-11-09 19:26:52,004 INFO L276 IsEmpty]: Start isEmpty. Operand 80469 states and 161815 transitions. [2024-11-09 19:26:52,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2024-11-09 19:26:52,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:52,013 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:26:52,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:26:52,013 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:52,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:52,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1663044245, now seen corresponding path program 1 times [2024-11-09 19:26:52,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:52,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948930128] [2024-11-09 19:26:52,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:52,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:52,178 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 614 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-09 19:26:52,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:52,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948930128] [2024-11-09 19:26:52,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948930128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:52,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:26:52,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:26:52,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582979517] [2024-11-09 19:26:52,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:52,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:26:52,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:52,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:26:52,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:26:52,180 INFO L87 Difference]: Start difference. First operand 80469 states and 161815 transitions. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-11-09 19:26:55,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:55,794 INFO L93 Difference]: Finished difference Result 163944 states and 329424 transitions. [2024-11-09 19:26:55,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:26:55,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 490 [2024-11-09 19:26:55,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:55,893 INFO L225 Difference]: With dead ends: 163944 [2024-11-09 19:26:55,893 INFO L226 Difference]: Without dead ends: 84229 [2024-11-09 19:26:55,926 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 [2024-11-09 19:26:55,926 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1403 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3619 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 4302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 3619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:55,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 174 Invalid, 4302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 3619 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 19:26:55,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84229 states. [2024-11-09 19:26:56,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84229 to 80469. [2024-11-09 19:26:56,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80469 states, 80468 states have (on average 2.007779489983596) internal successors, (161562), 80468 states have internal predecessors, (161562), 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) [2024-11-09 19:26:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80469 states to 80469 states and 161562 transitions. [2024-11-09 19:26:56,986 INFO L78 Accepts]: Start accepts. Automaton has 80469 states and 161562 transitions. Word has length 490 [2024-11-09 19:26:56,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:56,987 INFO L471 AbstractCegarLoop]: Abstraction has 80469 states and 161562 transitions. [2024-11-09 19:26:56,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-11-09 19:26:56,987 INFO L276 IsEmpty]: Start isEmpty. Operand 80469 states and 161562 transitions. [2024-11-09 19:26:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2024-11-09 19:26:56,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:56,999 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, 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, 2, 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] [2024-11-09 19:26:56,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:26:56,999 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:56,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:56,999 INFO L85 PathProgramCache]: Analyzing trace with hash 287899823, now seen corresponding path program 1 times [2024-11-09 19:26:56,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:56,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669452334] [2024-11-09 19:26:57,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:57,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-09 19:26:57,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:57,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669452334] [2024-11-09 19:26:57,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669452334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:57,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:26:57,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:26:57,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825087179] [2024-11-09 19:26:57,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:57,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:26:57,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:57,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:26:57,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:26:57,501 INFO L87 Difference]: Start difference. First operand 80469 states and 161562 transitions. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-11-09 19:27:00,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:27:00,697 INFO L93 Difference]: Finished difference Result 160936 states and 323120 transitions. [2024-11-09 19:27:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:27:00,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 510 [2024-11-09 19:27:00,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:27:00,791 INFO L225 Difference]: With dead ends: 160936 [2024-11-09 19:27:00,791 INFO L226 Difference]: Without dead ends: 81221 [2024-11-09 19:27:00,820 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 [2024-11-09 19:27:00,821 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1475 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 4001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:27:00,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 223 Invalid, 4001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 3576 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 19:27:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81221 states. [2024-11-09 19:27:01,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81221 to 79717. [2024-11-09 19:27:01,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79717 states, 79716 states have (on average 1.9890235335440816) internal successors, (158557), 79716 states have internal predecessors, (158557), 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) [2024-11-09 19:27:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79717 states to 79717 states and 158557 transitions. [2024-11-09 19:27:01,946 INFO L78 Accepts]: Start accepts. Automaton has 79717 states and 158557 transitions. Word has length 510 [2024-11-09 19:27:01,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:27:01,947 INFO L471 AbstractCegarLoop]: Abstraction has 79717 states and 158557 transitions. [2024-11-09 19:27:01,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-11-09 19:27:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 79717 states and 158557 transitions. [2024-11-09 19:27:01,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2024-11-09 19:27:01,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:27:01,958 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:27:01,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:27:01,958 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:27:01,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:27:01,958 INFO L85 PathProgramCache]: Analyzing trace with hash -248814394, now seen corresponding path program 1 times [2024-11-09 19:27:01,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:27:01,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311742341] [2024-11-09 19:27:01,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:27:01,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:27:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:27:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 866 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-09 19:27:02,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:27:02,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311742341] [2024-11-09 19:27:02,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311742341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:27:02,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:27:02,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:27:02,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701099856] [2024-11-09 19:27:02,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:27:02,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:27:02,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:27:02,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:27:02,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:27:02,450 INFO L87 Difference]: Start difference. First operand 79717 states and 158557 transitions. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-11-09 19:27:05,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:27:05,864 INFO L93 Difference]: Finished difference Result 163944 states and 325803 transitions. [2024-11-09 19:27:05,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:27:05,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 577 [2024-11-09 19:27:05,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:27:05,985 INFO L225 Difference]: With dead ends: 163944 [2024-11-09 19:27:05,985 INFO L226 Difference]: Without dead ends: 84981 [2024-11-09 19:27:06,016 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 [2024-11-09 19:27:06,017 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1388 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 4265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:27:06,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 226 Invalid, 4265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 19:27:06,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84981 states. [2024-11-09 19:27:06,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84981 to 79717. [2024-11-09 19:27:06,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79717 states, 79716 states have (on average 1.9859877565357018) internal successors, (158315), 79716 states have internal predecessors, (158315), 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) [2024-11-09 19:27:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79717 states to 79717 states and 158315 transitions. [2024-11-09 19:27:07,297 INFO L78 Accepts]: Start accepts. Automaton has 79717 states and 158315 transitions. Word has length 577 [2024-11-09 19:27:07,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:27:07,300 INFO L471 AbstractCegarLoop]: Abstraction has 79717 states and 158315 transitions. [2024-11-09 19:27:07,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2024-11-09 19:27:07,300 INFO L276 IsEmpty]: Start isEmpty. Operand 79717 states and 158315 transitions. [2024-11-09 19:27:07,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2024-11-09 19:27:07,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:27:07,319 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, 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, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-09 19:27:07,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:27:07,320 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:27:07,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:27:07,320 INFO L85 PathProgramCache]: Analyzing trace with hash -484448179, now seen corresponding path program 1 times [2024-11-09 19:27:07,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:27:07,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724282692] [2024-11-09 19:27:07,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:27:07,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:27:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:27:07,527 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2024-11-09 19:27:07,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:27:07,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724282692] [2024-11-09 19:27:07,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724282692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:27:07,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:27:07,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:27:07,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965198083] [2024-11-09 19:27:07,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:27:07,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:27:07,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:27:07,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:27:07,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:27:07,529 INFO L87 Difference]: Start difference. First operand 79717 states and 158315 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2024-11-09 19:27:11,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:27:11,296 INFO L93 Difference]: Finished difference Result 196280 states and 391141 transitions. [2024-11-09 19:27:11,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:27:11,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 580 [2024-11-09 19:27:11,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:27:11,456 INFO L225 Difference]: With dead ends: 196280 [2024-11-09 19:27:11,456 INFO L226 Difference]: Without dead ends: 117317 [2024-11-09 19:27:11,491 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 [2024-11-09 19:27:11,491 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 1424 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3599 mSolverCounterSat, 666 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 4265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 3599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:27:11,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 443 Invalid, 4265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 3599 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 19:27:11,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117317 states. [2024-11-09 19:27:12,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117317 to 114309. [2024-11-09 19:27:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114309 states, 114308 states have (on average 1.984480526297372) internal successors, (226842), 114308 states have internal predecessors, (226842), 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) [2024-11-09 19:27:13,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114309 states to 114309 states and 226842 transitions. [2024-11-09 19:27:13,040 INFO L78 Accepts]: Start accepts. Automaton has 114309 states and 226842 transitions. Word has length 580 [2024-11-09 19:27:13,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:27:13,040 INFO L471 AbstractCegarLoop]: Abstraction has 114309 states and 226842 transitions. [2024-11-09 19:27:13,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2024-11-09 19:27:13,041 INFO L276 IsEmpty]: Start isEmpty. Operand 114309 states and 226842 transitions. [2024-11-09 19:27:13,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2024-11-09 19:27:13,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:27:13,051 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, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:27:13,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:27:13,052 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:27:13,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:27:13,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2015022129, now seen corresponding path program 1 times [2024-11-09 19:27:13,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:27:13,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954253000] [2024-11-09 19:27:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:27:13,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:27:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:27:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2024-11-09 19:27:13,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:27:13,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954253000] [2024-11-09 19:27:13,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954253000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:27:13,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:27:13,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:27:13,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142668022] [2024-11-09 19:27:13,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:27:13,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:27:13,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:27:13,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:27:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:27:13,719 INFO L87 Difference]: Start difference. First operand 114309 states and 226842 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 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) [2024-11-09 19:27:19,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:27:19,772 INFO L93 Difference]: Finished difference Result 347435 states and 690424 transitions. [2024-11-09 19:27:19,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:27:19,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 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 602 [2024-11-09 19:27:19,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:27:20,430 INFO L225 Difference]: With dead ends: 347435 [2024-11-09 19:27:20,430 INFO L226 Difference]: Without dead ends: 233880 [2024-11-09 19:27:20,475 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 [2024-11-09 19:27:20,476 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 3145 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 7601 mSolverCounterSat, 507 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 8108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 7601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:27:20,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3145 Valid, 99 Invalid, 8108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [507 Valid, 7601 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-09 19:27:20,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233880 states.