./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/s3_srvr_2a_alt.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/s3_srvr_2a_alt.BV.c.cil.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 ffdd9c6c8ed32275119d4b9d2dc66b9f80986fea1a039186a702d6c803e62485 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:00:47,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:00:47,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:00:47,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:00:47,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:00:47,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:00:47,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:00:47,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:00:47,823 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:00:47,824 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:00:47,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:00:47,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:00:47,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:00:47,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:00:47,825 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:00:47,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:00:47,826 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:00:47,826 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:00:47,826 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:00:47,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:00:47,827 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:00:47,827 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:00:47,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:00:47,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:00:47,828 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:00:47,828 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:00:47,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:00:47,829 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:00:47,829 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:00:47,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:00:47,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:00:47,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:00:47,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:00:47,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:00:47,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:00:47,831 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:00:47,831 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:00:47,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:00:47,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:00:47,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:00:47,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:00:47,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:00:47,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffdd9c6c8ed32275119d4b9d2dc66b9f80986fea1a039186a702d6c803e62485 [2024-11-16 03:00:47,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:00:48,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:00:48,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:00:48,006 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:00:48,006 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:00:48,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_srvr_2a_alt.BV.c.cil.c [2024-11-16 03:00:49,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:00:49,713 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:00:49,714 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_srvr_2a_alt.BV.c.cil.c [2024-11-16 03:00:49,728 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/747011fea/a3b4128ee3e743208b4f5726a97f0fc0/FLAGdc49c7dd4 [2024-11-16 03:00:49,742 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/747011fea/a3b4128ee3e743208b4f5726a97f0fc0 [2024-11-16 03:00:49,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:00:49,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:00:49,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:00:49,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:00:49,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:00:49,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:00:49" (1/1) ... [2024-11-16 03:00:49,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c858ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:49, skipping insertion in model container [2024-11-16 03:00:49,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:00:49" (1/1) ... [2024-11-16 03:00:49,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:00:49,981 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/bitvector/s3_srvr_2a_alt.BV.c.cil.c[44811,44824] [2024-11-16 03:00:49,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:00:50,000 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:00:50,039 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/bitvector/s3_srvr_2a_alt.BV.c.cil.c[44811,44824] [2024-11-16 03:00:50,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:00:50,054 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:00:50,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50 WrapperNode [2024-11-16 03:00:50,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:00:50,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:00:50,056 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:00:50,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:00:50,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,106 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 568 [2024-11-16 03:00:50,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:00:50,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:00:50,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:00:50,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:00:50,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,124 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,138 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]. [2024-11-16 03:00:50,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,143 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:00:50,149 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:00:50,149 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:00:50,149 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:00:50,149 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (1/1) ... [2024-11-16 03:00:50,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:00:50,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:50,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:00:50,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:00:50,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:00:50,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:00:50,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:00:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:00:50,319 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:00:50,322 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:00:50,835 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L221: assume false; [2024-11-16 03:00:50,835 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L221: assume !false; [2024-11-16 03:00:50,882 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-16 03:00:50,883 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:00:50,897 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:00:50,899 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:00:50,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:00:50 BoogieIcfgContainer [2024-11-16 03:00:50,900 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:00:50,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:00:50,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:00:50,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:00:50,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:00:49" (1/3) ... [2024-11-16 03:00:50,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a422ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:00:50, skipping insertion in model container [2024-11-16 03:00:50,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:50" (2/3) ... [2024-11-16 03:00:50,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a422ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:00:50, skipping insertion in model container [2024-11-16 03:00:50,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:00:50" (3/3) ... [2024-11-16 03:00:50,910 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a_alt.BV.c.cil.c [2024-11-16 03:00:50,923 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:00:50,924 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:00:50,973 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:00:50,981 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c05de10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:00:50,981 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:00:50,985 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 162 states have (on average 1.623456790123457) internal successors, (263), 163 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:50,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-16 03:00:50,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:50,992 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] [2024-11-16 03:00:50,992 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:50,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:50,996 INFO L85 PathProgramCache]: Analyzing trace with hash -771689477, now seen corresponding path program 1 times [2024-11-16 03:00:51,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:51,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917472985] [2024-11-16 03:00:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:51,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:51,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:00:51,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:51,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917472985] [2024-11-16 03:00:51,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917472985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:51,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:51,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:51,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696640817] [2024-11-16 03:00:51,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:51,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:51,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:51,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:51,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:51,515 INFO L87 Difference]: Start difference. First operand has 164 states, 162 states have (on average 1.623456790123457) internal successors, (263), 163 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:51,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:51,684 INFO L93 Difference]: Finished difference Result 361 states and 590 transitions. [2024-11-16 03:00:51,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:51,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2024-11-16 03:00:51,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:51,694 INFO L225 Difference]: With dead ends: 361 [2024-11-16 03:00:51,694 INFO L226 Difference]: Without dead ends: 179 [2024-11-16 03:00:51,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:51,700 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 45 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:51,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 302 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:51,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-16 03:00:51,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-16 03:00:51,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.5224719101123596) internal successors, (271), 178 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 271 transitions. [2024-11-16 03:00:51,737 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 271 transitions. Word has length 47 [2024-11-16 03:00:51,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:51,737 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 271 transitions. [2024-11-16 03:00:51,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:51,738 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 271 transitions. [2024-11-16 03:00:51,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-16 03:00:51,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:51,739 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] [2024-11-16 03:00:51,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:00:51,740 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:51,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:51,741 INFO L85 PathProgramCache]: Analyzing trace with hash -550967958, now seen corresponding path program 1 times [2024-11-16 03:00:51,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:51,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801543264] [2024-11-16 03:00:51,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:51,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:51,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:00:51,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:51,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801543264] [2024-11-16 03:00:51,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801543264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:51,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:51,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:51,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333628426] [2024-11-16 03:00:51,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:51,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:51,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:51,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:51,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:51,826 INFO L87 Difference]: Start difference. First operand 179 states and 271 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:51,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:51,941 INFO L93 Difference]: Finished difference Result 395 states and 608 transitions. [2024-11-16 03:00:51,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:51,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2024-11-16 03:00:51,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:51,943 INFO L225 Difference]: With dead ends: 395 [2024-11-16 03:00:51,943 INFO L226 Difference]: Without dead ends: 222 [2024-11-16 03:00:51,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:51,945 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 24 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:51,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 223 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:51,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-16 03:00:51,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-11-16 03:00:51,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 1.5610859728506787) internal successors, (345), 221 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:51,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 345 transitions. [2024-11-16 03:00:51,954 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 345 transitions. Word has length 47 [2024-11-16 03:00:51,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:51,955 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 345 transitions. [2024-11-16 03:00:51,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:51,955 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 345 transitions. [2024-11-16 03:00:51,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 03:00:51,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:51,957 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:00:51,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:00:51,957 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:51,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:51,958 INFO L85 PathProgramCache]: Analyzing trace with hash 528887907, now seen corresponding path program 1 times [2024-11-16 03:00:51,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:51,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165129198] [2024-11-16 03:00:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:51,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:52,015 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:00:52,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:52,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165129198] [2024-11-16 03:00:52,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165129198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:52,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:52,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:52,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626987370] [2024-11-16 03:00:52,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:52,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:52,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:52,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,018 INFO L87 Difference]: Start difference. First operand 222 states and 345 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:52,046 INFO L93 Difference]: Finished difference Result 643 states and 1003 transitions. [2024-11-16 03:00:52,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:52,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2024-11-16 03:00:52,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:52,051 INFO L225 Difference]: With dead ends: 643 [2024-11-16 03:00:52,051 INFO L226 Difference]: Without dead ends: 429 [2024-11-16 03:00:52,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,056 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 128 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:52,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 536 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:52,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-16 03:00:52,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2024-11-16 03:00:52,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 428 states have (on average 1.5560747663551402) internal successors, (666), 428 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 666 transitions. [2024-11-16 03:00:52,083 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 666 transitions. Word has length 67 [2024-11-16 03:00:52,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:52,083 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 666 transitions. [2024-11-16 03:00:52,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,083 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 666 transitions. [2024-11-16 03:00:52,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 03:00:52,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:52,087 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:00:52,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:00:52,087 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:52,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:52,087 INFO L85 PathProgramCache]: Analyzing trace with hash -654459390, now seen corresponding path program 1 times [2024-11-16 03:00:52,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:52,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229660424] [2024-11-16 03:00:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:52,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:00:52,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:52,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229660424] [2024-11-16 03:00:52,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229660424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:52,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:52,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:52,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978500337] [2024-11-16 03:00:52,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:52,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:52,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:52,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:52,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,138 INFO L87 Difference]: Start difference. First operand 429 states and 666 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:52,161 INFO L93 Difference]: Finished difference Result 1060 states and 1650 transitions. [2024-11-16 03:00:52,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:52,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2024-11-16 03:00:52,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:52,163 INFO L225 Difference]: With dead ends: 1060 [2024-11-16 03:00:52,163 INFO L226 Difference]: Without dead ends: 639 [2024-11-16 03:00:52,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,165 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 165 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:52,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 373 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:52,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-16 03:00:52,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2024-11-16 03:00:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 638 states have (on average 1.5532915360501567) internal successors, (991), 638 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 991 transitions. [2024-11-16 03:00:52,177 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 991 transitions. Word has length 67 [2024-11-16 03:00:52,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:52,177 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 991 transitions. [2024-11-16 03:00:52,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,177 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 991 transitions. [2024-11-16 03:00:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 03:00:52,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:52,179 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:00:52,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:00:52,179 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:52,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:52,180 INFO L85 PathProgramCache]: Analyzing trace with hash -202408814, now seen corresponding path program 1 times [2024-11-16 03:00:52,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:52,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585973336] [2024-11-16 03:00:52,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:52,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:52,252 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 03:00:52,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:52,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585973336] [2024-11-16 03:00:52,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585973336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:52,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:52,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:52,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549770691] [2024-11-16 03:00:52,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:52,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:52,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:52,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:52,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,254 INFO L87 Difference]: Start difference. First operand 639 states and 991 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:52,383 INFO L93 Difference]: Finished difference Result 1492 states and 2349 transitions. [2024-11-16 03:00:52,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:52,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-16 03:00:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:52,386 INFO L225 Difference]: With dead ends: 1492 [2024-11-16 03:00:52,386 INFO L226 Difference]: Without dead ends: 861 [2024-11-16 03:00:52,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,388 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 35 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:52,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 316 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:52,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-11-16 03:00:52,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 849. [2024-11-16 03:00:52,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 848 states have (on average 1.4162735849056605) internal successors, (1201), 848 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1201 transitions. [2024-11-16 03:00:52,403 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1201 transitions. Word has length 111 [2024-11-16 03:00:52,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:52,403 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1201 transitions. [2024-11-16 03:00:52,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1201 transitions. [2024-11-16 03:00:52,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 03:00:52,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:52,405 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:00:52,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:00:52,406 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:52,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:52,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1579091121, now seen corresponding path program 1 times [2024-11-16 03:00:52,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:52,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247368997] [2024-11-16 03:00:52,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:52,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:52,459 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 03:00:52,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:52,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247368997] [2024-11-16 03:00:52,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247368997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:52,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:52,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:52,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142100247] [2024-11-16 03:00:52,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:52,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:52,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:52,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:52,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,466 INFO L87 Difference]: Start difference. First operand 849 states and 1201 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:52,607 INFO L93 Difference]: Finished difference Result 1825 states and 2622 transitions. [2024-11-16 03:00:52,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:52,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-16 03:00:52,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:52,611 INFO L225 Difference]: With dead ends: 1825 [2024-11-16 03:00:52,611 INFO L226 Difference]: Without dead ends: 984 [2024-11-16 03:00:52,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,613 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 35 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:52,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 315 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:52,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-16 03:00:52,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 948. [2024-11-16 03:00:52,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 947 states have (on average 1.4139387539598733) internal successors, (1339), 947 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1339 transitions. [2024-11-16 03:00:52,629 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1339 transitions. Word has length 111 [2024-11-16 03:00:52,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:52,629 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1339 transitions. [2024-11-16 03:00:52,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1339 transitions. [2024-11-16 03:00:52,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 03:00:52,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:52,631 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-16 03:00:52,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:00:52,632 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:52,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:52,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2003811391, now seen corresponding path program 1 times [2024-11-16 03:00:52,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:52,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608282462] [2024-11-16 03:00:52,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:52,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:52,690 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-16 03:00:52,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:52,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608282462] [2024-11-16 03:00:52,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608282462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:52,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:52,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:52,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833094791] [2024-11-16 03:00:52,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:52,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:52,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:52,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:52,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,693 INFO L87 Difference]: Start difference. First operand 948 states and 1339 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:52,721 INFO L93 Difference]: Finished difference Result 1926 states and 2738 transitions. [2024-11-16 03:00:52,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:52,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 134 [2024-11-16 03:00:52,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:52,725 INFO L225 Difference]: With dead ends: 1926 [2024-11-16 03:00:52,725 INFO L226 Difference]: Without dead ends: 1272 [2024-11-16 03:00:52,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,726 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 128 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:52,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 546 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:52,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2024-11-16 03:00:52,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2024-11-16 03:00:52,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1271 states have (on average 1.4162077104642015) internal successors, (1800), 1271 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1800 transitions. [2024-11-16 03:00:52,743 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1800 transitions. Word has length 134 [2024-11-16 03:00:52,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:52,744 INFO L471 AbstractCegarLoop]: Abstraction has 1272 states and 1800 transitions. [2024-11-16 03:00:52,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1800 transitions. [2024-11-16 03:00:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 03:00:52,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:52,746 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-16 03:00:52,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:00:52,746 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:52,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:52,747 INFO L85 PathProgramCache]: Analyzing trace with hash -32871934, now seen corresponding path program 1 times [2024-11-16 03:00:52,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:52,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083103567] [2024-11-16 03:00:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:52,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 03:00:52,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:52,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083103567] [2024-11-16 03:00:52,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083103567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:52,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:52,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:52,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638150060] [2024-11-16 03:00:52,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:52,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:52,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:52,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:52,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,786 INFO L87 Difference]: Start difference. First operand 1272 states and 1800 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:52,836 INFO L93 Difference]: Finished difference Result 2535 states and 3617 transitions. [2024-11-16 03:00:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:52,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-11-16 03:00:52,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:52,841 INFO L225 Difference]: With dead ends: 2535 [2024-11-16 03:00:52,841 INFO L226 Difference]: Without dead ends: 1557 [2024-11-16 03:00:52,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,842 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 130 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:52,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 547 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:52,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2024-11-16 03:00:52,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1557. [2024-11-16 03:00:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1556 states have (on average 1.4254498714652957) internal successors, (2218), 1556 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2218 transitions. [2024-11-16 03:00:52,864 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2218 transitions. Word has length 134 [2024-11-16 03:00:52,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:52,864 INFO L471 AbstractCegarLoop]: Abstraction has 1557 states and 2218 transitions. [2024-11-16 03:00:52,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:52,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2218 transitions. [2024-11-16 03:00:52,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-16 03:00:52,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:52,868 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-16 03:00:52,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:00:52,869 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:52,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:52,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2139477409, now seen corresponding path program 1 times [2024-11-16 03:00:52,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:52,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589275410] [2024-11-16 03:00:52,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:52,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:52,946 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-16 03:00:52,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:52,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589275410] [2024-11-16 03:00:52,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589275410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:52,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:52,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:52,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133100034] [2024-11-16 03:00:52,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:52,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:52,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:52,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:52,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:52,949 INFO L87 Difference]: Start difference. First operand 1557 states and 2218 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:53,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:53,071 INFO L93 Difference]: Finished difference Result 3321 states and 4794 transitions. [2024-11-16 03:00:53,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:53,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 247 [2024-11-16 03:00:53,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:53,077 INFO L225 Difference]: With dead ends: 3321 [2024-11-16 03:00:53,077 INFO L226 Difference]: Without dead ends: 1722 [2024-11-16 03:00:53,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:53,080 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:53,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 300 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2024-11-16 03:00:53,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1722. [2024-11-16 03:00:53,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1721 states have (on average 1.3991865194654272) internal successors, (2408), 1721 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:53,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2408 transitions. [2024-11-16 03:00:53,103 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2408 transitions. Word has length 247 [2024-11-16 03:00:53,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:53,103 INFO L471 AbstractCegarLoop]: Abstraction has 1722 states and 2408 transitions. [2024-11-16 03:00:53,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:53,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2408 transitions. [2024-11-16 03:00:53,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-16 03:00:53,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:53,108 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-16 03:00:53,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:00:53,108 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:53,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:53,109 INFO L85 PathProgramCache]: Analyzing trace with hash -414411915, now seen corresponding path program 1 times [2024-11-16 03:00:53,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:53,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276297047] [2024-11-16 03:00:53,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:53,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 469 proven. 18 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-16 03:00:53,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:53,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276297047] [2024-11-16 03:00:53,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276297047] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:00:53,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313468089] [2024-11-16 03:00:53,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:53,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:53,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:53,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:00:53,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:00:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:53,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:00:53,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:00:53,456 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 469 proven. 18 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-16 03:00:53,456 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:00:53,542 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 469 proven. 18 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-16 03:00:53,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313468089] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:00:53,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:00:53,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-16 03:00:53,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830276228] [2024-11-16 03:00:53,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:00:53,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 03:00:53,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:53,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 03:00:53,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:00:53,545 INFO L87 Difference]: Start difference. First operand 1722 states and 2408 transitions. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:54,157 INFO L93 Difference]: Finished difference Result 6585 states and 9221 transitions. [2024-11-16 03:00:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 03:00:54,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 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 278 [2024-11-16 03:00:54,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:54,169 INFO L225 Difference]: With dead ends: 6585 [2024-11-16 03:00:54,170 INFO L226 Difference]: Without dead ends: 4871 [2024-11-16 03:00:54,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:00:54,173 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 296 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:54,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1356 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:00:54,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4871 states. [2024-11-16 03:00:54,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4871 to 3723. [2024-11-16 03:00:54,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 3722 states have (on average 1.367544331004836) internal successors, (5090), 3722 states have internal predecessors, (5090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:54,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5090 transitions. [2024-11-16 03:00:54,232 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5090 transitions. Word has length 278 [2024-11-16 03:00:54,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:54,233 INFO L471 AbstractCegarLoop]: Abstraction has 3723 states and 5090 transitions. [2024-11-16 03:00:54,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:54,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5090 transitions. [2024-11-16 03:00:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-16 03:00:54,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:54,238 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-16 03:00:54,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 03:00:54,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 03:00:54,443 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:54,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:54,444 INFO L85 PathProgramCache]: Analyzing trace with hash 534077814, now seen corresponding path program 1 times [2024-11-16 03:00:54,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:54,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357896489] [2024-11-16 03:00:54,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:54,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 437 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-16 03:00:54,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:54,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357896489] [2024-11-16 03:00:54,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357896489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:54,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:54,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:54,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065769725] [2024-11-16 03:00:54,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:54,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:54,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:54,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:54,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:54,534 INFO L87 Difference]: Start difference. First operand 3723 states and 5090 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:54,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:54,587 INFO L93 Difference]: Finished difference Result 10622 states and 14635 transitions. [2024-11-16 03:00:54,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:54,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 278 [2024-11-16 03:00:54,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:54,599 INFO L225 Difference]: With dead ends: 10622 [2024-11-16 03:00:54,599 INFO L226 Difference]: Without dead ends: 4636 [2024-11-16 03:00:54,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:54,605 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 126 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:54,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 553 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4636 states. [2024-11-16 03:00:54,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4636 to 4313. [2024-11-16 03:00:54,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4313 states, 4312 states have (on average 1.3849721706864564) internal successors, (5972), 4312 states have internal predecessors, (5972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4313 states to 4313 states and 5972 transitions. [2024-11-16 03:00:54,671 INFO L78 Accepts]: Start accepts. Automaton has 4313 states and 5972 transitions. Word has length 278 [2024-11-16 03:00:54,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:54,671 INFO L471 AbstractCegarLoop]: Abstraction has 4313 states and 5972 transitions. [2024-11-16 03:00:54,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:54,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4313 states and 5972 transitions. [2024-11-16 03:00:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-16 03:00:54,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:54,677 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-16 03:00:54,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:00:54,677 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:54,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:54,678 INFO L85 PathProgramCache]: Analyzing trace with hash 703329399, now seen corresponding path program 1 times [2024-11-16 03:00:54,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:54,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556879599] [2024-11-16 03:00:54,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:54,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-11-16 03:00:54,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:54,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556879599] [2024-11-16 03:00:54,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556879599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:54,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:54,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:54,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396241455] [2024-11-16 03:00:54,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:54,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:54,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:54,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:54,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:54,728 INFO L87 Difference]: Start difference. First operand 4313 states and 5972 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:54,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:54,839 INFO L93 Difference]: Finished difference Result 8768 states and 12118 transitions. [2024-11-16 03:00:54,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:54,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 278 [2024-11-16 03:00:54,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:54,851 INFO L225 Difference]: With dead ends: 8768 [2024-11-16 03:00:54,851 INFO L226 Difference]: Without dead ends: 4463 [2024-11-16 03:00:54,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:54,855 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 9 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:54,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 316 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:54,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4463 states. [2024-11-16 03:00:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4463 to 4463. [2024-11-16 03:00:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4463 states, 4462 states have (on average 1.3787539220080682) internal successors, (6152), 4462 states have internal predecessors, (6152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:54,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4463 states to 4463 states and 6152 transitions. [2024-11-16 03:00:54,957 INFO L78 Accepts]: Start accepts. Automaton has 4463 states and 6152 transitions. Word has length 278 [2024-11-16 03:00:54,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:54,957 INFO L471 AbstractCegarLoop]: Abstraction has 4463 states and 6152 transitions. [2024-11-16 03:00:54,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:54,958 INFO L276 IsEmpty]: Start isEmpty. Operand 4463 states and 6152 transitions. [2024-11-16 03:00:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-16 03:00:54,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:54,964 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-16 03:00:54,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:00:54,964 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:54,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:54,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1892289040, now seen corresponding path program 1 times [2024-11-16 03:00:54,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:54,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158194920] [2024-11-16 03:00:54,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:54,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:55,018 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2024-11-16 03:00:55,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:55,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158194920] [2024-11-16 03:00:55,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158194920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:55,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:55,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:55,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148770539] [2024-11-16 03:00:55,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:55,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:55,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:55,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:55,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:55,020 INFO L87 Difference]: Start difference. First operand 4463 states and 6152 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:55,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:55,134 INFO L93 Difference]: Finished difference Result 9296 states and 12782 transitions. [2024-11-16 03:00:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:55,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 302 [2024-11-16 03:00:55,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:55,147 INFO L225 Difference]: With dead ends: 9296 [2024-11-16 03:00:55,147 INFO L226 Difference]: Without dead ends: 4841 [2024-11-16 03:00:55,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:55,152 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 9 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:55,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 316 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:55,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2024-11-16 03:00:55,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4841. [2024-11-16 03:00:55,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4841 states, 4840 states have (on average 1.3636363636363635) internal successors, (6600), 4840 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:55,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4841 states to 4841 states and 6600 transitions. [2024-11-16 03:00:55,220 INFO L78 Accepts]: Start accepts. Automaton has 4841 states and 6600 transitions. Word has length 302 [2024-11-16 03:00:55,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:55,221 INFO L471 AbstractCegarLoop]: Abstraction has 4841 states and 6600 transitions. [2024-11-16 03:00:55,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:55,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4841 states and 6600 transitions. [2024-11-16 03:00:55,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-16 03:00:55,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:55,226 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:00:55,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:00:55,227 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:55,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:55,227 INFO L85 PathProgramCache]: Analyzing trace with hash 7184983, now seen corresponding path program 1 times [2024-11-16 03:00:55,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:55,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56709515] [2024-11-16 03:00:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:55,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:55,319 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2024-11-16 03:00:55,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:55,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56709515] [2024-11-16 03:00:55,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56709515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:55,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:55,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:55,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99154632] [2024-11-16 03:00:55,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:55,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:55,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:55,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:55,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:55,321 INFO L87 Difference]: Start difference. First operand 4841 states and 6600 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:55,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:55,439 INFO L93 Difference]: Finished difference Result 10080 states and 13734 transitions. [2024-11-16 03:00:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:55,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 331 [2024-11-16 03:00:55,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:55,449 INFO L225 Difference]: With dead ends: 10080 [2024-11-16 03:00:55,449 INFO L226 Difference]: Without dead ends: 5247 [2024-11-16 03:00:55,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:55,454 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 9 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:55,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 316 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:55,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2024-11-16 03:00:55,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 5247. [2024-11-16 03:00:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 1.3488372093023255) internal successors, (7076), 5246 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:55,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 7076 transitions. [2024-11-16 03:00:55,524 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 7076 transitions. Word has length 331 [2024-11-16 03:00:55,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:55,524 INFO L471 AbstractCegarLoop]: Abstraction has 5247 states and 7076 transitions. [2024-11-16 03:00:55,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:55,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 7076 transitions. [2024-11-16 03:00:55,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-16 03:00:55,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:55,530 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:00:55,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:00:55,530 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:55,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:55,531 INFO L85 PathProgramCache]: Analyzing trace with hash 749821174, now seen corresponding path program 1 times [2024-11-16 03:00:55,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:55,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708573548] [2024-11-16 03:00:55,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:55,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2024-11-16 03:00:55,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:55,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708573548] [2024-11-16 03:00:55,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708573548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:55,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:55,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:55,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660153174] [2024-11-16 03:00:55,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:55,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:55,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:55,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:55,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:55,590 INFO L87 Difference]: Start difference. First operand 5247 states and 7076 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:55,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:55,749 INFO L93 Difference]: Finished difference Result 10920 states and 14742 transitions. [2024-11-16 03:00:55,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:55,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 358 [2024-11-16 03:00:55,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:55,771 INFO L225 Difference]: With dead ends: 10920 [2024-11-16 03:00:55,771 INFO L226 Difference]: Without dead ends: 5681 [2024-11-16 03:00:55,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:55,776 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 9 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:55,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 316 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:55,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5681 states. [2024-11-16 03:00:55,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5681 to 4787. [2024-11-16 03:00:55,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4787 states, 4786 states have (on average 1.3508148767237778) internal successors, (6465), 4786 states have internal predecessors, (6465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:55,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4787 states to 4787 states and 6465 transitions. [2024-11-16 03:00:55,877 INFO L78 Accepts]: Start accepts. Automaton has 4787 states and 6465 transitions. Word has length 358 [2024-11-16 03:00:55,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:55,877 INFO L471 AbstractCegarLoop]: Abstraction has 4787 states and 6465 transitions. [2024-11-16 03:00:55,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:55,878 INFO L276 IsEmpty]: Start isEmpty. Operand 4787 states and 6465 transitions. [2024-11-16 03:00:55,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-16 03:00:55,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:55,886 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:00:55,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:00:55,886 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:55,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:55,887 INFO L85 PathProgramCache]: Analyzing trace with hash 257819285, now seen corresponding path program 1 times [2024-11-16 03:00:55,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:55,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235319702] [2024-11-16 03:00:55,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:55,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:56,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 766 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2024-11-16 03:00:56,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:56,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235319702] [2024-11-16 03:00:56,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235319702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:56,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:56,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:56,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648250473] [2024-11-16 03:00:56,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:56,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:56,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:56,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:56,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:56,005 INFO L87 Difference]: Start difference. First operand 4787 states and 6465 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:56,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:56,087 INFO L93 Difference]: Finished difference Result 14331 states and 19350 transitions. [2024-11-16 03:00:56,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:56,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 394 [2024-11-16 03:00:56,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:56,103 INFO L225 Difference]: With dead ends: 14331 [2024-11-16 03:00:56,104 INFO L226 Difference]: Without dead ends: 9552 [2024-11-16 03:00:56,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:56,111 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 140 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:56,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 548 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:56,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9552 states. [2024-11-16 03:00:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9552 to 9352. [2024-11-16 03:00:56,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9352 states, 9351 states have (on average 1.3531173136562935) internal successors, (12653), 9351 states have internal predecessors, (12653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:56,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9352 states to 9352 states and 12653 transitions. [2024-11-16 03:00:56,304 INFO L78 Accepts]: Start accepts. Automaton has 9352 states and 12653 transitions. Word has length 394 [2024-11-16 03:00:56,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:56,305 INFO L471 AbstractCegarLoop]: Abstraction has 9352 states and 12653 transitions. [2024-11-16 03:00:56,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 9352 states and 12653 transitions. [2024-11-16 03:00:56,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-16 03:00:56,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:56,314 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-16 03:00:56,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:00:56,315 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:56,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:56,315 INFO L85 PathProgramCache]: Analyzing trace with hash -2036571059, now seen corresponding path program 1 times [2024-11-16 03:00:56,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:56,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529630567] [2024-11-16 03:00:56,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:56,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:56,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 956 proven. 28 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2024-11-16 03:00:56,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:56,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529630567] [2024-11-16 03:00:56,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529630567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:00:56,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117454840] [2024-11-16 03:00:56,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:56,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:56,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:56,531 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) [2024-11-16 03:00:56,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:00:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:56,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:00:56,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:00:56,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 745 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-11-16 03:00:56,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:00:56,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117454840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:56,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:00:56,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 03:00:56,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899751035] [2024-11-16 03:00:56,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:56,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:56,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:56,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:56,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:00:56,897 INFO L87 Difference]: Start difference. First operand 9352 states and 12653 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:56,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:56,956 INFO L93 Difference]: Finished difference Result 11733 states and 15895 transitions. [2024-11-16 03:00:56,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:56,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 395 [2024-11-16 03:00:56,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:56,967 INFO L225 Difference]: With dead ends: 11733 [2024-11-16 03:00:56,967 INFO L226 Difference]: Without dead ends: 9301 [2024-11-16 03:00:56,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:00:56,971 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 92 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:56,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 541 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:56,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9301 states. [2024-11-16 03:00:57,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9301 to 6691. [2024-11-16 03:00:57,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 6690 states have (on average 1.3600896860986547) internal successors, (9099), 6690 states have internal predecessors, (9099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 9099 transitions. [2024-11-16 03:00:57,158 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 9099 transitions. Word has length 395 [2024-11-16 03:00:57,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:57,159 INFO L471 AbstractCegarLoop]: Abstraction has 6691 states and 9099 transitions. [2024-11-16 03:00:57,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 9099 transitions. [2024-11-16 03:00:57,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-16 03:00:57,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:57,168 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:00:57,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 03:00:57,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-16 03:00:57,373 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:57,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:57,374 INFO L85 PathProgramCache]: Analyzing trace with hash -39969121, now seen corresponding path program 1 times [2024-11-16 03:00:57,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:57,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168386031] [2024-11-16 03:00:57,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:57,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1382 proven. 28 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2024-11-16 03:00:57,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:57,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168386031] [2024-11-16 03:00:57,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168386031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:00:57,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290183463] [2024-11-16 03:00:57,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:57,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:57,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:57,513 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) [2024-11-16 03:00:57,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:00:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:57,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:00:57,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:00:57,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1382 proven. 28 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2024-11-16 03:00:57,719 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:00:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 1382 proven. 28 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2024-11-16 03:00:57,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290183463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:00:57,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:00:57,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-16 03:00:57,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531526829] [2024-11-16 03:00:57,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:00:57,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 03:00:57,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:57,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 03:00:57,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:00:57,804 INFO L87 Difference]: Start difference. First operand 6691 states and 9099 transitions. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:58,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:58,195 INFO L93 Difference]: Finished difference Result 14990 states and 20369 transitions. [2024-11-16 03:00:58,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 03:00:58,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 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 469 [2024-11-16 03:00:58,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:58,207 INFO L225 Difference]: With dead ends: 14990 [2024-11-16 03:00:58,207 INFO L226 Difference]: Without dead ends: 8005 [2024-11-16 03:00:58,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 938 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:00:58,215 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 410 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:58,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 765 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 03:00:58,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8005 states. [2024-11-16 03:00:58,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8005 to 6591. [2024-11-16 03:00:58,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6591 states, 6590 states have (on average 1.3358118361153262) internal successors, (8803), 6590 states have internal predecessors, (8803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:58,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6591 states to 6591 states and 8803 transitions. [2024-11-16 03:00:58,395 INFO L78 Accepts]: Start accepts. Automaton has 6591 states and 8803 transitions. Word has length 469 [2024-11-16 03:00:58,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:58,396 INFO L471 AbstractCegarLoop]: Abstraction has 6591 states and 8803 transitions. [2024-11-16 03:00:58,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:58,396 INFO L276 IsEmpty]: Start isEmpty. Operand 6591 states and 8803 transitions. [2024-11-16 03:00:58,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2024-11-16 03:00:58,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:58,419 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:00:58,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:00:58,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 03:00:58,625 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:58,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:58,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1166879635, now seen corresponding path program 1 times [2024-11-16 03:00:58,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:58,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187034872] [2024-11-16 03:00:58,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:58,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:58,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3480 backedges. 1863 proven. 0 refuted. 0 times theorem prover too weak. 1617 trivial. 0 not checked. [2024-11-16 03:00:58,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:58,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187034872] [2024-11-16 03:00:58,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187034872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:58,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:58,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:58,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664529132] [2024-11-16 03:00:58,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:58,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:58,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:58,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:58,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:58,996 INFO L87 Difference]: Start difference. First operand 6591 states and 8803 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:59,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:59,214 INFO L93 Difference]: Finished difference Result 12084 states and 16200 transitions. [2024-11-16 03:00:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:59,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 575 [2024-11-16 03:00:59,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:59,225 INFO L225 Difference]: With dead ends: 12084 [2024-11-16 03:00:59,225 INFO L226 Difference]: Without dead ends: 6801 [2024-11-16 03:00:59,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:59,231 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 38 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:59,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 245 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:00:59,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2024-11-16 03:00:59,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 6801. [2024-11-16 03:00:59,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6801 states, 6800 states have (on average 1.3360294117647058) internal successors, (9085), 6800 states have internal predecessors, (9085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:59,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6801 states to 6801 states and 9085 transitions. [2024-11-16 03:00:59,393 INFO L78 Accepts]: Start accepts. Automaton has 6801 states and 9085 transitions. Word has length 575 [2024-11-16 03:00:59,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:59,394 INFO L471 AbstractCegarLoop]: Abstraction has 6801 states and 9085 transitions. [2024-11-16 03:00:59,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:59,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6801 states and 9085 transitions. [2024-11-16 03:00:59,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2024-11-16 03:00:59,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:59,403 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:00:59,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 03:00:59,403 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:59,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:59,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1280093913, now seen corresponding path program 1 times [2024-11-16 03:00:59,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:59,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177701576] [2024-11-16 03:00:59,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:59,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:59,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3510 backedges. 1884 proven. 0 refuted. 0 times theorem prover too weak. 1626 trivial. 0 not checked. [2024-11-16 03:00:59,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:59,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177701576] [2024-11-16 03:00:59,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177701576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:59,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:59,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:59,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116013567] [2024-11-16 03:00:59,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:59,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:59,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:59,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:59,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:59,523 INFO L87 Difference]: Start difference. First operand 6801 states and 9085 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:59,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:59,651 INFO L93 Difference]: Finished difference Result 13478 states and 17939 transitions. [2024-11-16 03:00:59,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:59,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 575 [2024-11-16 03:00:59,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:59,660 INFO L225 Difference]: With dead ends: 13478 [2024-11-16 03:00:59,660 INFO L226 Difference]: Without dead ends: 6697 [2024-11-16 03:00:59,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:59,678 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 10 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:59,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 312 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:59,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6697 states. [2024-11-16 03:00:59,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6697 to 6697. [2024-11-16 03:00:59,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6697 states, 6696 states have (on average 1.310035842293907) internal successors, (8772), 6696 states have internal predecessors, (8772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6697 states to 6697 states and 8772 transitions. [2024-11-16 03:00:59,795 INFO L78 Accepts]: Start accepts. Automaton has 6697 states and 8772 transitions. Word has length 575 [2024-11-16 03:00:59,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:59,795 INFO L471 AbstractCegarLoop]: Abstraction has 6697 states and 8772 transitions. [2024-11-16 03:00:59,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand 6697 states and 8772 transitions. [2024-11-16 03:00:59,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2024-11-16 03:00:59,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:59,805 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:00:59,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 03:00:59,805 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:59,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:59,806 INFO L85 PathProgramCache]: Analyzing trace with hash 817310677, now seen corresponding path program 1 times [2024-11-16 03:00:59,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:59,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129509789] [2024-11-16 03:00:59,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:59,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:01:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 1932 proven. 232 refuted. 0 times theorem prover too weak. 1376 trivial. 0 not checked. [2024-11-16 03:01:00,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:01:00,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129509789] [2024-11-16 03:01:00,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129509789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:01:00,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770418173] [2024-11-16 03:01:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:01:00,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:01:00,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:01:00,180 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:01:00,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 03:01:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:01:00,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 03:01:00,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:01:01,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 1980 proven. 265 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2024-11-16 03:01:01,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:01:02,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 2087 proven. 158 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2024-11-16 03:01:02,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770418173] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:01:02,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:01:02,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-16 03:01:02,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137280111] [2024-11-16 03:01:02,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:01:02,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 03:01:02,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:01:02,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 03:01:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-16 03:01:02,521 INFO L87 Difference]: Start difference. First operand 6697 states and 8772 transitions. Second operand has 11 states, 11 states have (on average 43.63636363636363) internal successors, (480), 11 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:01:04,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:01:04,173 INFO L93 Difference]: Finished difference Result 26943 states and 35244 transitions. [2024-11-16 03:01:04,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 03:01:04,174 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 43.63636363636363) internal successors, (480), 11 states have internal predecessors, (480), 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 575 [2024-11-16 03:01:04,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:01:04,237 INFO L225 Difference]: With dead ends: 26943 [2024-11-16 03:01:04,237 INFO L226 Difference]: Without dead ends: 20208 [2024-11-16 03:01:04,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 1157 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2024-11-16 03:01:04,259 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 763 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:01:04,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 1769 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 03:01:04,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20208 states. [2024-11-16 03:01:04,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20208 to 19571. [2024-11-16 03:01:04,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19571 states, 19570 states have (on average 1.2742973939703628) internal successors, (24938), 19570 states have internal predecessors, (24938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:01:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19571 states to 19571 states and 24938 transitions. [2024-11-16 03:01:04,731 INFO L78 Accepts]: Start accepts. Automaton has 19571 states and 24938 transitions. Word has length 575 [2024-11-16 03:01:04,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:01:04,731 INFO L471 AbstractCegarLoop]: Abstraction has 19571 states and 24938 transitions. [2024-11-16 03:01:04,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 43.63636363636363) internal successors, (480), 11 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:01:04,732 INFO L276 IsEmpty]: Start isEmpty. Operand 19571 states and 24938 transitions. [2024-11-16 03:01:04,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2024-11-16 03:01:04,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:01:04,771 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 18, 16, 16, 14, 14, 12, 12, 10, 10, 10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:01:04,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 03:01:04,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:01:04,981 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:01:04,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:01:04,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1216943579, now seen corresponding path program 2 times [2024-11-16 03:01:04,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:01:04,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326076797] [2024-11-16 03:01:04,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:01:04,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:01:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:01:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4495 backedges. 1451 proven. 18 refuted. 0 times theorem prover too weak. 3026 trivial. 0 not checked. [2024-11-16 03:01:05,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:01:05,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326076797] [2024-11-16 03:01:05,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326076797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:01:05,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820831580] [2024-11-16 03:01:05,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 03:01:05,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:01:05,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:01:05,256 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:01:05,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 03:01:05,443 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 03:01:05,443 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 03:01:05,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:01:05,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:01:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4495 backedges. 1451 proven. 18 refuted. 0 times theorem prover too weak. 3026 trivial. 0 not checked. [2024-11-16 03:01:05,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:01:05,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4495 backedges. 1451 proven. 18 refuted. 0 times theorem prover too weak. 3026 trivial. 0 not checked. [2024-11-16 03:01:05,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820831580] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:01:05,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:01:05,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-16 03:01:05,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536136173] [2024-11-16 03:01:05,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:01:05,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 03:01:05,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:01:05,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 03:01:05,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:01:05,602 INFO L87 Difference]: Start difference. First operand 19571 states and 24938 transitions. Second operand has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:01:06,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:01:06,162 INFO L93 Difference]: Finished difference Result 28530 states and 36228 transitions. [2024-11-16 03:01:06,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 03:01:06,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 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 651 [2024-11-16 03:01:06,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:01:06,165 INFO L225 Difference]: With dead ends: 28530 [2024-11-16 03:01:06,165 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:01:06,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1312 GetRequests, 1302 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-16 03:01:06,193 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 261 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:01:06,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1174 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:01:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:01:06,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:01:06,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:01:06,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:01:06,196 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 651 [2024-11-16 03:01:06,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:01:06,196 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:01:06,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.5) internal successors, (308), 8 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:01:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:01:06,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:01:06,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:01:06,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 03:01:06,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-16 03:01:06,407 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:01:06,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:01:14,219 WARN L286 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 702 DAG size of output: 517 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-16 03:01:17,187 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:01:17,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:01:17 BoogieIcfgContainer [2024-11-16 03:01:17,202 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:01:17,205 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:01:17,205 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:01:17,205 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:01:17,205 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:00:50" (3/4) ... [2024-11-16 03:01:17,207 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:01:17,226 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-16 03:01:17,227 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-16 03:01:17,227 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:01:17,228 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:01:17,356 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:01:17,356 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:01:17,356 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:01:17,359 INFO L158 Benchmark]: Toolchain (without parser) took 27610.30ms. Allocated memory was 163.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 87.8MB in the beginning and 779.3MB in the end (delta: -691.4MB). Peak memory consumption was 386.4MB. Max. memory is 16.1GB. [2024-11-16 03:01:17,359 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 113.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:01:17,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.80ms. Allocated memory is still 163.6MB. Free memory was 87.8MB in the beginning and 69.7MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-16 03:01:17,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.97ms. Allocated memory is still 163.6MB. Free memory was 69.7MB in the beginning and 66.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 03:01:17,360 INFO L158 Benchmark]: Boogie Preprocessor took 41.25ms. Allocated memory is still 163.6MB. Free memory was 66.9MB in the beginning and 64.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 03:01:17,360 INFO L158 Benchmark]: IcfgBuilder took 751.21ms. Allocated memory was 163.6MB in the beginning and 230.7MB in the end (delta: 67.1MB). Free memory was 63.9MB in the beginning and 170.2MB in the end (delta: -106.3MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-11-16 03:01:17,360 INFO L158 Benchmark]: TraceAbstraction took 26299.57ms. Allocated memory was 230.7MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 169.2MB in the beginning and 789.8MB in the end (delta: -620.6MB). Peak memory consumption was 768.5MB. Max. memory is 16.1GB. [2024-11-16 03:01:17,360 INFO L158 Benchmark]: Witness Printer took 151.93ms. Allocated memory is still 1.2GB. Free memory was 789.8MB in the beginning and 779.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 03:01:17,361 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 113.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.80ms. Allocated memory is still 163.6MB. Free memory was 87.8MB in the beginning and 69.7MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.97ms. Allocated memory is still 163.6MB. Free memory was 69.7MB in the beginning and 66.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.25ms. Allocated memory is still 163.6MB. Free memory was 66.9MB in the beginning and 64.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 751.21ms. Allocated memory was 163.6MB in the beginning and 230.7MB in the end (delta: 67.1MB). Free memory was 63.9MB in the beginning and 170.2MB in the end (delta: -106.3MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 26299.57ms. Allocated memory was 230.7MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 169.2MB in the beginning and 789.8MB in the end (delta: -620.6MB). Peak memory consumption was 768.5MB. Max. memory is 16.1GB. * Witness Printer took 151.93ms. Allocated memory is still 1.2GB. Free memory was 789.8MB in the beginning and 779.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 679]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 164 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.5s, OverallIterations: 22, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2893 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2893 mSDsluCounter, 11985 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6016 mSDsCounter, 415 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5366 IncrementalHoareTripleChecker+Invalid, 5781 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 415 mSolverCounterUnsat, 5969 mSDtfsCounter, 5366 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4450 GetRequests, 4385 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19571occurred in iteration=21, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 22 MinimizatonAttempts, 7274 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 8792 NumberOfCodeBlocks, 8792 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 10734 ConstructedInterpolants, 0 QuantifiedInterpolants, 21928 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3598 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 31 InterpolantComputations, 18 PerfectInterpolantSequences, 48098/48973 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 111]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:01:17,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE