./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem18_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem18_label23.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 9c3f430f1d0c98e808f28c171a470da1b7d8f35cdbdf3a5d89880d12cad963bd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:23:31,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:23:31,821 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:23:31,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:23:31,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:23:31,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:23:31,848 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:23:31,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:23:31,849 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:23:31,850 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:23:31,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:23:31,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:23:31,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:23:31,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:23:31,852 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:23:31,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:23:31,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:23:31,853 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:23:31,853 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:23:31,853 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:23:31,854 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:23:31,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:23:31,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:23:31,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:23:31,856 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:23:31,856 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:23:31,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:23:31,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:23:31,857 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:23:31,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:23:31,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:23:31,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:23:31,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:23:31,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:23:31,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:23:31,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:23:31,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:23:31,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:23:31,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:23:31,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:23:31,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:23:31,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:23:31,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c3f430f1d0c98e808f28c171a470da1b7d8f35cdbdf3a5d89880d12cad963bd [2024-11-16 04:23:32,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:23:32,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:23:32,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:23:32,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:23:32,109 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:23:32,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem18_label23.c [2024-11-16 04:23:33,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:23:33,570 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:23:33,571 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label23.c [2024-11-16 04:23:33,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382ba158c/a32a8afa28b94020bc1820c835f70c3d/FLAG70a1024d3 [2024-11-16 04:23:33,822 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382ba158c/a32a8afa28b94020bc1820c835f70c3d [2024-11-16 04:23:33,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:23:33,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:23:33,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:23:33,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:23:33,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:23:33,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:23:33" (1/1) ... [2024-11-16 04:23:33,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4540c4e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:33, skipping insertion in model container [2024-11-16 04:23:33,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:23:33" (1/1) ... [2024-11-16 04:23:33,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:23:34,058 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label23.c[5791,5804] [2024-11-16 04:23:34,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:23:34,490 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:23:34,512 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label23.c[5791,5804] [2024-11-16 04:23:34,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:23:34,747 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:23:34,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34 WrapperNode [2024-11-16 04:23:34,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:23:34,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:23:34,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:23:34,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:23:34,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:34,791 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:34,970 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4134 [2024-11-16 04:23:34,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:23:34,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:23:34,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:23:34,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:23:34,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:34,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:35,039 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:35,120 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 04:23:35,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:35,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:35,179 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:35,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:35,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:35,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:35,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:23:35,253 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:23:35,254 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:23:35,254 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:23:35,255 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (1/1) ... [2024-11-16 04:23:35,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:23:35,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:23:35,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:23:35,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:23:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:23:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:23:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:23:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:23:35,430 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:23:35,431 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:23:37,992 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1647: havoc calculate_output_#t~ret8#1; [2024-11-16 04:23:37,992 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3060: havoc calculate_output2_#t~ret9#1; [2024-11-16 04:23:38,097 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-16 04:23:38,097 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:23:38,119 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:23:38,120 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:23:38,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:23:38 BoogieIcfgContainer [2024-11-16 04:23:38,120 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:23:38,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:23:38,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:23:38,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:23:38,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:23:33" (1/3) ... [2024-11-16 04:23:38,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c1b69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:23:38, skipping insertion in model container [2024-11-16 04:23:38,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:34" (2/3) ... [2024-11-16 04:23:38,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c1b69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:23:38, skipping insertion in model container [2024-11-16 04:23:38,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:23:38" (3/3) ... [2024-11-16 04:23:38,126 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label23.c [2024-11-16 04:23:38,138 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:23:38,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:23:38,205 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:23:38,211 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;@bc751ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:23:38,212 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:23:38,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 760 states, 758 states have (on average 1.9089709762532983) internal successors, (1447), 759 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:38,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-16 04:23:38,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:38,227 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:38,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:38,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:38,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1668293233, now seen corresponding path program 1 times [2024-11-16 04:23:38,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:38,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785824739] [2024-11-16 04:23:38,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:38,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:38,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:23:38,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:38,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785824739] [2024-11-16 04:23:38,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785824739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:38,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:38,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:23:38,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956180105] [2024-11-16 04:23:38,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:38,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:38,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:38,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:38,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:38,540 INFO L87 Difference]: Start difference. First operand has 760 states, 758 states have (on average 1.9089709762532983) internal successors, (1447), 759 states have internal predecessors, (1447), 0 states have call successors, (0), 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 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:40,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:40,890 INFO L93 Difference]: Finished difference Result 2211 states and 4272 transitions. [2024-11-16 04:23:40,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:40,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-16 04:23:40,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:40,911 INFO L225 Difference]: With dead ends: 2211 [2024-11-16 04:23:40,911 INFO L226 Difference]: Without dead ends: 1387 [2024-11-16 04:23:40,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:40,921 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 693 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:40,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 295 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 04:23:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-16 04:23:41,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1387. [2024-11-16 04:23:41,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1386 states have (on average 1.7323232323232323) internal successors, (2401), 1386 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:41,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2401 transitions. [2024-11-16 04:23:41,013 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2401 transitions. Word has length 57 [2024-11-16 04:23:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:41,014 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 2401 transitions. [2024-11-16 04:23:41,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:41,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2401 transitions. [2024-11-16 04:23:41,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 04:23:41,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:41,018 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:41,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:23:41,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:41,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:41,020 INFO L85 PathProgramCache]: Analyzing trace with hash -29925528, now seen corresponding path program 1 times [2024-11-16 04:23:41,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:41,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258699016] [2024-11-16 04:23:41,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:41,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:23:41,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:41,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258699016] [2024-11-16 04:23:41,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258699016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:41,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:41,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:23:41,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203482867] [2024-11-16 04:23:41,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:41,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:41,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:41,177 INFO L87 Difference]: Start difference. First operand 1387 states and 2401 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:43,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:43,372 INFO L93 Difference]: Finished difference Result 4154 states and 7197 transitions. [2024-11-16 04:23:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:43,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-16 04:23:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:43,380 INFO L225 Difference]: With dead ends: 4154 [2024-11-16 04:23:43,381 INFO L226 Difference]: Without dead ends: 2769 [2024-11-16 04:23:43,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:43,385 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 677 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:43,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 576 Invalid, 2628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 04:23:43,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2024-11-16 04:23:43,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2024-11-16 04:23:43,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.4299132947976878) internal successors, (3958), 2768 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:43,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3958 transitions. [2024-11-16 04:23:43,427 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3958 transitions. Word has length 127 [2024-11-16 04:23:43,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:43,428 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 3958 transitions. [2024-11-16 04:23:43,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:43,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3958 transitions. [2024-11-16 04:23:43,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-16 04:23:43,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:43,432 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:43,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:23:43,432 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:43,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:43,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1632996464, now seen corresponding path program 1 times [2024-11-16 04:23:43,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:43,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887993712] [2024-11-16 04:23:43,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:43,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:23:43,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:43,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887993712] [2024-11-16 04:23:43,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887993712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:43,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:43,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:23:43,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575899996] [2024-11-16 04:23:43,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:43,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:43,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:43,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:43,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:43,565 INFO L87 Difference]: Start difference. First operand 2769 states and 3958 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:45,687 INFO L93 Difference]: Finished difference Result 8303 states and 11870 transitions. [2024-11-16 04:23:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:45,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-16 04:23:45,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:45,702 INFO L225 Difference]: With dead ends: 8303 [2024-11-16 04:23:45,702 INFO L226 Difference]: Without dead ends: 5536 [2024-11-16 04:23:45,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:45,706 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 692 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 672 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 672 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:45,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 438 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [672 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 04:23:45,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5536 states. [2024-11-16 04:23:45,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5536 to 5533. [2024-11-16 04:23:45,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5533 states, 5532 states have (on average 1.2816341287057122) internal successors, (7090), 5532 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:45,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 7090 transitions. [2024-11-16 04:23:45,767 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 7090 transitions. Word has length 143 [2024-11-16 04:23:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:45,767 INFO L471 AbstractCegarLoop]: Abstraction has 5533 states and 7090 transitions. [2024-11-16 04:23:45,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 7090 transitions. [2024-11-16 04:23:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 04:23:45,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:45,769 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:45,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:23:45,769 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:45,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:45,769 INFO L85 PathProgramCache]: Analyzing trace with hash -129911169, now seen corresponding path program 1 times [2024-11-16 04:23:45,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:45,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472121720] [2024-11-16 04:23:45,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:45,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:23:46,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:46,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472121720] [2024-11-16 04:23:46,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472121720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:46,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:46,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:46,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767429679] [2024-11-16 04:23:46,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:46,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:23:46,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:46,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:23:46,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:23:46,071 INFO L87 Difference]: Start difference. First operand 5533 states and 7090 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:48,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:48,624 INFO L93 Difference]: Finished difference Result 15213 states and 18737 transitions. [2024-11-16 04:23:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:23:48,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-16 04:23:48,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:48,645 INFO L225 Difference]: With dead ends: 15213 [2024-11-16 04:23:48,645 INFO L226 Difference]: Without dead ends: 9682 [2024-11-16 04:23:48,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:23:48,649 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 1878 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4380 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 4486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:48,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 658 Invalid, 4486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4380 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 04:23:48,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9682 states. [2024-11-16 04:23:48,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9682 to 8988. [2024-11-16 04:23:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 1.2002893067764548) internal successors, (10787), 8987 states have internal predecessors, (10787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 10787 transitions. [2024-11-16 04:23:48,746 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 10787 transitions. Word has length 176 [2024-11-16 04:23:48,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:48,747 INFO L471 AbstractCegarLoop]: Abstraction has 8988 states and 10787 transitions. [2024-11-16 04:23:48,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 10787 transitions. [2024-11-16 04:23:48,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-16 04:23:48,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:48,750 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:48,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:23:48,750 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:48,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:48,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1590429167, now seen corresponding path program 1 times [2024-11-16 04:23:48,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:48,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365413032] [2024-11-16 04:23:48,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:48,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 04:23:49,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:49,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365413032] [2024-11-16 04:23:49,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365413032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:49,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:49,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:49,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677678176] [2024-11-16 04:23:49,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:49,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:23:49,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:49,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:23:49,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:23:49,095 INFO L87 Difference]: Start difference. First operand 8988 states and 10787 transitions. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:50,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:50,982 INFO L93 Difference]: Finished difference Result 20795 states and 24460 transitions. [2024-11-16 04:23:50,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:23:50,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 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 359 [2024-11-16 04:23:50,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:51,014 INFO L225 Difference]: With dead ends: 20795 [2024-11-16 04:23:51,014 INFO L226 Difference]: Without dead ends: 11755 [2024-11-16 04:23:51,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:23:51,027 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 532 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 2592 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 2973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 2592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:51,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 646 Invalid, 2973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 2592 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:23:51,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11755 states. [2024-11-16 04:23:51,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11755 to 11752. [2024-11-16 04:23:51,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11752 states, 11751 states have (on average 1.1209258786486256) internal successors, (13172), 11751 states have internal predecessors, (13172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11752 states to 11752 states and 13172 transitions. [2024-11-16 04:23:51,178 INFO L78 Accepts]: Start accepts. Automaton has 11752 states and 13172 transitions. Word has length 359 [2024-11-16 04:23:51,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:51,179 INFO L471 AbstractCegarLoop]: Abstraction has 11752 states and 13172 transitions. [2024-11-16 04:23:51,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 11752 states and 13172 transitions. [2024-11-16 04:23:51,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2024-11-16 04:23:51,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:51,191 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:51,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:23:51,192 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:51,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:51,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1429253181, now seen corresponding path program 1 times [2024-11-16 04:23:51,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:51,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088203591] [2024-11-16 04:23:51,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:51,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:51,738 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-16 04:23:51,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:51,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088203591] [2024-11-16 04:23:51,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088203591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:51,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:51,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:51,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105894755] [2024-11-16 04:23:51,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:51,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:51,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:51,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:51,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:51,741 INFO L87 Difference]: Start difference. First operand 11752 states and 13172 transitions. Second operand has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:53,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:53,447 INFO L93 Difference]: Finished difference Result 27648 states and 31346 transitions. [2024-11-16 04:23:53,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:53,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 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 873 [2024-11-16 04:23:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:53,477 INFO L225 Difference]: With dead ends: 27648 [2024-11-16 04:23:53,477 INFO L226 Difference]: Without dead ends: 15898 [2024-11-16 04:23:53,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:53,486 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 647 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:53,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 323 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 04:23:53,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15898 states. [2024-11-16 04:23:53,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15898 to 14516. [2024-11-16 04:23:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14516 states, 14515 states have (on average 1.145160179125043) internal successors, (16622), 14515 states have internal predecessors, (16622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:53,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14516 states to 14516 states and 16622 transitions. [2024-11-16 04:23:53,625 INFO L78 Accepts]: Start accepts. Automaton has 14516 states and 16622 transitions. Word has length 873 [2024-11-16 04:23:53,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:53,627 INFO L471 AbstractCegarLoop]: Abstraction has 14516 states and 16622 transitions. [2024-11-16 04:23:53,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:53,627 INFO L276 IsEmpty]: Start isEmpty. Operand 14516 states and 16622 transitions. [2024-11-16 04:23:53,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 960 [2024-11-16 04:23:53,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:53,644 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:53,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:23:53,644 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:53,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:53,645 INFO L85 PathProgramCache]: Analyzing trace with hash 474479708, now seen corresponding path program 1 times [2024-11-16 04:23:53,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:53,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311495060] [2024-11-16 04:23:53,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:53,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:54,210 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2024-11-16 04:23:54,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:54,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311495060] [2024-11-16 04:23:54,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311495060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:54,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:54,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:23:54,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187935155] [2024-11-16 04:23:54,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:54,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:54,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:54,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:54,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:54,213 INFO L87 Difference]: Start difference. First operand 14516 states and 16622 transitions. Second operand has 3 states, 3 states have (on average 192.0) internal successors, (576), 2 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:55,721 INFO L93 Difference]: Finished difference Result 35940 states and 41808 transitions. [2024-11-16 04:23:55,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:55,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 2 states have internal predecessors, (576), 0 states have call successors, (0), 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 959 [2024-11-16 04:23:55,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:55,749 INFO L225 Difference]: With dead ends: 35940 [2024-11-16 04:23:55,749 INFO L226 Difference]: Without dead ends: 21426 [2024-11-16 04:23:55,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:55,766 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 248 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 758 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:55,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 85 Invalid, 2552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [758 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:23:55,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21426 states. [2024-11-16 04:23:55,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21426 to 21426. [2024-11-16 04:23:55,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21426 states, 21425 states have (on average 1.1630338389731623) internal successors, (24918), 21425 states have internal predecessors, (24918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:56,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21426 states to 21426 states and 24918 transitions. [2024-11-16 04:23:56,017 INFO L78 Accepts]: Start accepts. Automaton has 21426 states and 24918 transitions. Word has length 959 [2024-11-16 04:23:56,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:56,018 INFO L471 AbstractCegarLoop]: Abstraction has 21426 states and 24918 transitions. [2024-11-16 04:23:56,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 2 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:56,018 INFO L276 IsEmpty]: Start isEmpty. Operand 21426 states and 24918 transitions. [2024-11-16 04:23:56,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 961 [2024-11-16 04:23:56,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:56,024 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:56,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:23:56,024 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:56,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:56,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1624363235, now seen corresponding path program 1 times [2024-11-16 04:23:56,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:56,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316699409] [2024-11-16 04:23:56,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:56,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:56,456 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2024-11-16 04:23:56,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:56,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316699409] [2024-11-16 04:23:56,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316699409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:23:56,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:23:56,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:23:56,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927917932] [2024-11-16 04:23:56,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:23:56,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:23:56,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:23:56,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:23:56,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:56,459 INFO L87 Difference]: Start difference. First operand 21426 states and 24918 transitions. Second operand has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:58,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:23:58,096 INFO L93 Difference]: Finished difference Result 42159 states and 49138 transitions. [2024-11-16 04:23:58,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:23:58,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 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 960 [2024-11-16 04:23:58,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:23:58,117 INFO L225 Difference]: With dead ends: 42159 [2024-11-16 04:23:58,117 INFO L226 Difference]: Without dead ends: 20735 [2024-11-16 04:23:58,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:23:58,138 INFO L432 NwaCegarLoop]: 1087 mSDtfsCounter, 641 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 2282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:23:58,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1096 Invalid, 2282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:23:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20735 states. [2024-11-16 04:23:58,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20735 to 20735. [2024-11-16 04:23:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20735 states, 20734 states have (on average 1.1059129931513456) internal successors, (22930), 20734 states have internal predecessors, (22930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:58,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20735 states to 20735 states and 22930 transitions. [2024-11-16 04:23:58,318 INFO L78 Accepts]: Start accepts. Automaton has 20735 states and 22930 transitions. Word has length 960 [2024-11-16 04:23:58,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:23:58,319 INFO L471 AbstractCegarLoop]: Abstraction has 20735 states and 22930 transitions. [2024-11-16 04:23:58,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:23:58,319 INFO L276 IsEmpty]: Start isEmpty. Operand 20735 states and 22930 transitions. [2024-11-16 04:23:58,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1014 [2024-11-16 04:23:58,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:23:58,327 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:23:58,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:23:58,327 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:23:58,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:23:58,328 INFO L85 PathProgramCache]: Analyzing trace with hash -588481181, now seen corresponding path program 1 times [2024-11-16 04:23:58,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:23:58,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495430347] [2024-11-16 04:23:58,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:58,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:23:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2024-11-16 04:23:59,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:23:59,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495430347] [2024-11-16 04:23:59,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495430347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:23:59,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585003985] [2024-11-16 04:23:59,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:23:59,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:23:59,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:23:59,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:23:59,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:23:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:23:59,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:23:59,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:24:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2024-11-16 04:24:00,207 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:24:00,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585003985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:00,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:24:00,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 04:24:00,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670164006] [2024-11-16 04:24:00,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:00,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:00,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:00,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:00,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:24:00,209 INFO L87 Difference]: Start difference. First operand 20735 states and 22930 transitions. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 2 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:01,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:01,748 INFO L93 Difference]: Finished difference Result 51142 states and 57257 transitions. [2024-11-16 04:24:01,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:01,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 2 states have internal predecessors, (523), 0 states have call successors, (0), 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 1013 [2024-11-16 04:24:01,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:01,787 INFO L225 Difference]: With dead ends: 51142 [2024-11-16 04:24:01,787 INFO L226 Difference]: Without dead ends: 30409 [2024-11-16 04:24:01,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1015 GetRequests, 1012 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:24:01,806 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 183 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:01,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 366 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:24:01,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30409 states. [2024-11-16 04:24:02,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30409 to 27645. [2024-11-16 04:24:02,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27645 states, 27644 states have (on average 1.1002387498191288) internal successors, (30415), 27644 states have internal predecessors, (30415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:02,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27645 states to 27645 states and 30415 transitions. [2024-11-16 04:24:02,110 INFO L78 Accepts]: Start accepts. Automaton has 27645 states and 30415 transitions. Word has length 1013 [2024-11-16 04:24:02,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:02,111 INFO L471 AbstractCegarLoop]: Abstraction has 27645 states and 30415 transitions. [2024-11-16 04:24:02,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 2 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 27645 states and 30415 transitions. [2024-11-16 04:24:02,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1047 [2024-11-16 04:24:02,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:02,118 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:02,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:24:02,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:24:02,320 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:02,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:02,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1798000770, now seen corresponding path program 1 times [2024-11-16 04:24:02,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:02,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797622938] [2024-11-16 04:24:02,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:02,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:03,424 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-16 04:24:03,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:03,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797622938] [2024-11-16 04:24:03,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797622938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:03,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:03,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:24:03,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258939647] [2024-11-16 04:24:03,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:03,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:03,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:03,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:03,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:03,427 INFO L87 Difference]: Start difference. First operand 27645 states and 30415 transitions. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:04,872 INFO L93 Difference]: Finished difference Result 55288 states and 60828 transitions. [2024-11-16 04:24:04,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:04,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 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 1046 [2024-11-16 04:24:04,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:04,899 INFO L225 Difference]: With dead ends: 55288 [2024-11-16 04:24:04,899 INFO L226 Difference]: Without dead ends: 27645 [2024-11-16 04:24:04,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:04,916 INFO L432 NwaCegarLoop]: 776 mSDtfsCounter, 742 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:04,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 785 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:24:04,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27645 states. [2024-11-16 04:24:05,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27645 to 26954. [2024-11-16 04:24:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26954 states, 26953 states have (on average 1.0849256112492116) internal successors, (29242), 26953 states have internal predecessors, (29242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:05,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26954 states to 26954 states and 29242 transitions. [2024-11-16 04:24:05,143 INFO L78 Accepts]: Start accepts. Automaton has 26954 states and 29242 transitions. Word has length 1046 [2024-11-16 04:24:05,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:05,144 INFO L471 AbstractCegarLoop]: Abstraction has 26954 states and 29242 transitions. [2024-11-16 04:24:05,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:05,144 INFO L276 IsEmpty]: Start isEmpty. Operand 26954 states and 29242 transitions. [2024-11-16 04:24:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1078 [2024-11-16 04:24:05,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:05,158 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:05,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:24:05,159 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:05,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:05,159 INFO L85 PathProgramCache]: Analyzing trace with hash -181009592, now seen corresponding path program 1 times [2024-11-16 04:24:05,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:05,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676916547] [2024-11-16 04:24:05,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:05,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-16 04:24:05,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676916547] [2024-11-16 04:24:05,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676916547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:05,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:05,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:24:05,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323848639] [2024-11-16 04:24:05,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:05,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:05,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:05,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:05,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:05,917 INFO L87 Difference]: Start difference. First operand 26954 states and 29242 transitions. Second operand has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:07,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:07,382 INFO L93 Difference]: Finished difference Result 55288 states and 59887 transitions. [2024-11-16 04:24:07,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:07,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 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 1077 [2024-11-16 04:24:07,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:07,477 INFO L225 Difference]: With dead ends: 55288 [2024-11-16 04:24:07,477 INFO L226 Difference]: Without dead ends: 28336 [2024-11-16 04:24:07,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:07,485 INFO L432 NwaCegarLoop]: 977 mSDtfsCounter, 575 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:07,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 986 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:24:07,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28336 states. [2024-11-16 04:24:07,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28336 to 28336. [2024-11-16 04:24:07,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28336 states, 28335 states have (on average 1.0674783836244928) internal successors, (30247), 28335 states have internal predecessors, (30247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:07,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28336 states to 28336 states and 30247 transitions. [2024-11-16 04:24:07,682 INFO L78 Accepts]: Start accepts. Automaton has 28336 states and 30247 transitions. Word has length 1077 [2024-11-16 04:24:07,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:07,682 INFO L471 AbstractCegarLoop]: Abstraction has 28336 states and 30247 transitions. [2024-11-16 04:24:07,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:07,683 INFO L276 IsEmpty]: Start isEmpty. Operand 28336 states and 30247 transitions. [2024-11-16 04:24:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1132 [2024-11-16 04:24:07,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:07,692 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:07,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:24:07,692 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:07,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash -651339431, now seen corresponding path program 1 times [2024-11-16 04:24:07,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:07,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140863584] [2024-11-16 04:24:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:07,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:08,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 633 proven. 618 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-16 04:24:08,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:08,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140863584] [2024-11-16 04:24:08,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140863584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:24:08,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990230682] [2024-11-16 04:24:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:08,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:24:08,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:24:08,996 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 04:24:08,997 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 04:24:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:09,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:24:09,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:24:09,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-16 04:24:09,358 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:24:09,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990230682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:09,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:24:09,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-16 04:24:09,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109480018] [2024-11-16 04:24:09,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:09,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:09,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:09,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:09,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:24:09,361 INFO L87 Difference]: Start difference. First operand 28336 states and 30247 transitions. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:10,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:10,836 INFO L93 Difference]: Finished difference Result 63580 states and 68693 transitions. [2024-11-16 04:24:10,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:10,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 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 1131 [2024-11-16 04:24:10,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:10,872 INFO L225 Difference]: With dead ends: 63580 [2024-11-16 04:24:10,873 INFO L226 Difference]: Without dead ends: 35246 [2024-11-16 04:24:10,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1138 GetRequests, 1131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:24:10,891 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 700 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:10,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 168 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:24:10,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35246 states. [2024-11-16 04:24:11,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35246 to 35246. [2024-11-16 04:24:11,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35246 states, 35245 states have (on average 1.0738828202581927) internal successors, (37849), 35245 states have internal predecessors, (37849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:11,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35246 states to 35246 states and 37849 transitions. [2024-11-16 04:24:11,144 INFO L78 Accepts]: Start accepts. Automaton has 35246 states and 37849 transitions. Word has length 1131 [2024-11-16 04:24:11,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:11,145 INFO L471 AbstractCegarLoop]: Abstraction has 35246 states and 37849 transitions. [2024-11-16 04:24:11,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:11,145 INFO L276 IsEmpty]: Start isEmpty. Operand 35246 states and 37849 transitions. [2024-11-16 04:24:11,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1138 [2024-11-16 04:24:11,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:11,154 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:11,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 04:24:11,355 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,SelfDestructingSolverStorable11 [2024-11-16 04:24:11,355 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:11,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:11,356 INFO L85 PathProgramCache]: Analyzing trace with hash -261960120, now seen corresponding path program 1 times [2024-11-16 04:24:11,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:11,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446505778] [2024-11-16 04:24:11,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:11,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:11,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 623 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-16 04:24:11,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:11,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446505778] [2024-11-16 04:24:11,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446505778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:11,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:11,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:24:11,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809518553] [2024-11-16 04:24:11,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:11,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:11,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:11,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:11,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:11,863 INFO L87 Difference]: Start difference. First operand 35246 states and 37849 transitions. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:13,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:13,400 INFO L93 Difference]: Finished difference Result 80164 states and 86936 transitions. [2024-11-16 04:24:13,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:13,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 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 1137 [2024-11-16 04:24:13,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:13,442 INFO L225 Difference]: With dead ends: 80164 [2024-11-16 04:24:13,442 INFO L226 Difference]: Without dead ends: 42847 [2024-11-16 04:24:13,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:13,467 INFO L432 NwaCegarLoop]: 1117 mSDtfsCounter, 605 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:13,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1124 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:24:13,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42847 states. [2024-11-16 04:24:13,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42847 to 42847. [2024-11-16 04:24:13,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42847 states, 42846 states have (on average 1.0678709797880783) internal successors, (45754), 42846 states have internal predecessors, (45754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:13,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42847 states to 42847 states and 45754 transitions. [2024-11-16 04:24:13,794 INFO L78 Accepts]: Start accepts. Automaton has 42847 states and 45754 transitions. Word has length 1137 [2024-11-16 04:24:13,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:13,795 INFO L471 AbstractCegarLoop]: Abstraction has 42847 states and 45754 transitions. [2024-11-16 04:24:13,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:13,795 INFO L276 IsEmpty]: Start isEmpty. Operand 42847 states and 45754 transitions. [2024-11-16 04:24:13,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1156 [2024-11-16 04:24:13,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:13,805 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:13,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:24:13,806 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:13,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:13,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1469154941, now seen corresponding path program 1 times [2024-11-16 04:24:13,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:13,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153886085] [2024-11-16 04:24:13,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:13,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:14,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 752 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2024-11-16 04:24:14,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:14,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153886085] [2024-11-16 04:24:14,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153886085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:14,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:14,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 04:24:14,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371646353] [2024-11-16 04:24:14,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:14,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 04:24:14,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:14,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 04:24:14,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:24:14,616 INFO L87 Difference]: Start difference. First operand 42847 states and 45754 transitions. Second operand has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:16,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:16,612 INFO L93 Difference]: Finished difference Result 94082 states and 101419 transitions. [2024-11-16 04:24:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:24:16,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 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 1155 [2024-11-16 04:24:16,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:16,656 INFO L225 Difference]: With dead ends: 94082 [2024-11-16 04:24:16,657 INFO L226 Difference]: Without dead ends: 47782 [2024-11-16 04:24:16,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:24:16,684 INFO L432 NwaCegarLoop]: 1060 mSDtfsCounter, 1373 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 930 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 3524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 930 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:16,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 1076 Invalid, 3524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [930 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 04:24:16,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47782 states. [2024-11-16 04:24:17,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47782 to 46302. [2024-11-16 04:24:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46302 states, 46301 states have (on average 1.041705362735146) internal successors, (48232), 46301 states have internal predecessors, (48232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:17,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46302 states to 46302 states and 48232 transitions. [2024-11-16 04:24:17,133 INFO L78 Accepts]: Start accepts. Automaton has 46302 states and 48232 transitions. Word has length 1155 [2024-11-16 04:24:17,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:17,134 INFO L471 AbstractCegarLoop]: Abstraction has 46302 states and 48232 transitions. [2024-11-16 04:24:17,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:17,134 INFO L276 IsEmpty]: Start isEmpty. Operand 46302 states and 48232 transitions. [2024-11-16 04:24:17,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1372 [2024-11-16 04:24:17,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:17,152 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:17,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:24:17,152 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:17,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:17,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2033448391, now seen corresponding path program 1 times [2024-11-16 04:24:17,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:17,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860606003] [2024-11-16 04:24:17,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:17,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2128 backedges. 1345 proven. 0 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2024-11-16 04:24:17,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:17,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860606003] [2024-11-16 04:24:17,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860606003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:17,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:17,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:24:17,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618042580] [2024-11-16 04:24:17,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:17,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:17,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:17,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:17,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:17,845 INFO L87 Difference]: Start difference. First operand 46302 states and 48232 transitions. Second operand has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:19,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:19,253 INFO L93 Difference]: Finished difference Result 102276 states and 106873 transitions. [2024-11-16 04:24:19,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:19,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 0 states have call successors, (0), 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 1371 [2024-11-16 04:24:19,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:19,305 INFO L225 Difference]: With dead ends: 102276 [2024-11-16 04:24:19,305 INFO L226 Difference]: Without dead ends: 56667 [2024-11-16 04:24:19,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:19,335 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 457 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:19,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 970 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:24:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56667 states. [2024-11-16 04:24:19,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56667 to 55976. [2024-11-16 04:24:19,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55976 states, 55975 states have (on average 1.038910227780259) internal successors, (58153), 55975 states have internal predecessors, (58153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55976 states to 55976 states and 58153 transitions. [2024-11-16 04:24:19,747 INFO L78 Accepts]: Start accepts. Automaton has 55976 states and 58153 transitions. Word has length 1371 [2024-11-16 04:24:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:19,748 INFO L471 AbstractCegarLoop]: Abstraction has 55976 states and 58153 transitions. [2024-11-16 04:24:19,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:19,748 INFO L276 IsEmpty]: Start isEmpty. Operand 55976 states and 58153 transitions. [2024-11-16 04:24:19,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1401 [2024-11-16 04:24:19,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:19,768 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:19,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:24:19,768 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:19,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:19,769 INFO L85 PathProgramCache]: Analyzing trace with hash -415670981, now seen corresponding path program 1 times [2024-11-16 04:24:19,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:19,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426251295] [2024-11-16 04:24:19,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:19,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2292 backedges. 1521 proven. 0 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2024-11-16 04:24:20,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:20,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426251295] [2024-11-16 04:24:20,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426251295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:20,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:20,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:24:20,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126292706] [2024-11-16 04:24:20,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:20,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:24:20,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:20,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:24:20,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:24:20,840 INFO L87 Difference]: Start difference. First operand 55976 states and 58153 transitions. Second operand has 4 states, 4 states have (on average 206.5) internal successors, (826), 3 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:22,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:22,855 INFO L93 Difference]: Finished difference Result 117478 states and 122268 transitions. [2024-11-16 04:24:22,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:24:22,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 206.5) internal successors, (826), 3 states have internal predecessors, (826), 0 states have call successors, (0), 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 1400 [2024-11-16 04:24:22,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:22,909 INFO L225 Difference]: With dead ends: 117478 [2024-11-16 04:24:22,909 INFO L226 Difference]: Without dead ends: 62195 [2024-11-16 04:24:22,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:24:22,941 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 805 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 2723 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 3005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 2723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:22,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 74 Invalid, 3005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 2723 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:24:22,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62195 states. [2024-11-16 04:24:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62195 to 61504. [2024-11-16 04:24:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61504 states, 61503 states have (on average 1.039136302294197) internal successors, (63910), 61503 states have internal predecessors, (63910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61504 states to 61504 states and 63910 transitions. [2024-11-16 04:24:23,385 INFO L78 Accepts]: Start accepts. Automaton has 61504 states and 63910 transitions. Word has length 1400 [2024-11-16 04:24:23,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:23,386 INFO L471 AbstractCegarLoop]: Abstraction has 61504 states and 63910 transitions. [2024-11-16 04:24:23,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 206.5) internal successors, (826), 3 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:23,386 INFO L276 IsEmpty]: Start isEmpty. Operand 61504 states and 63910 transitions. [2024-11-16 04:24:23,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1481 [2024-11-16 04:24:23,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:23,408 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:23,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 04:24:23,408 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:23,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1971063880, now seen corresponding path program 1 times [2024-11-16 04:24:23,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:23,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2246970] [2024-11-16 04:24:23,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:23,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:25,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2858 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2024-11-16 04:24:25,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:25,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2246970] [2024-11-16 04:24:25,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2246970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:25,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:25,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:24:25,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828682361] [2024-11-16 04:24:25,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:25,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:25,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:25,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:25,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:25,282 INFO L87 Difference]: Start difference. First operand 61504 states and 63910 transitions. Second operand has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:26,612 INFO L93 Difference]: Finished difference Result 123697 states and 128529 transitions. [2024-11-16 04:24:26,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:26,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 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 1480 [2024-11-16 04:24:26,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:26,667 INFO L225 Difference]: With dead ends: 123697 [2024-11-16 04:24:26,667 INFO L226 Difference]: Without dead ends: 62195 [2024-11-16 04:24:26,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:26,702 INFO L432 NwaCegarLoop]: 759 mSDtfsCounter, 646 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:26,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 766 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:24:26,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62195 states. [2024-11-16 04:24:27,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62195 to 61504. [2024-11-16 04:24:27,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61504 states, 61503 states have (on average 1.0356405378599418) internal successors, (63695), 61503 states have internal predecessors, (63695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:27,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61504 states to 61504 states and 63695 transitions. [2024-11-16 04:24:27,218 INFO L78 Accepts]: Start accepts. Automaton has 61504 states and 63695 transitions. Word has length 1480 [2024-11-16 04:24:27,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:27,219 INFO L471 AbstractCegarLoop]: Abstraction has 61504 states and 63695 transitions. [2024-11-16 04:24:27,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 61504 states and 63695 transitions. [2024-11-16 04:24:27,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1522 [2024-11-16 04:24:27,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:27,257 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:27,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:24:27,257 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:27,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:27,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1747170628, now seen corresponding path program 1 times [2024-11-16 04:24:27,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:27,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283337937] [2024-11-16 04:24:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:27,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2682 backedges. 1639 proven. 0 refuted. 0 times theorem prover too weak. 1043 trivial. 0 not checked. [2024-11-16 04:24:28,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:28,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283337937] [2024-11-16 04:24:28,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283337937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:28,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:28,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:24:28,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287415231] [2024-11-16 04:24:28,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:28,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:28,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:28,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:28,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:28,928 INFO L87 Difference]: Start difference. First operand 61504 states and 63695 transitions. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:30,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:30,249 INFO L93 Difference]: Finished difference Result 120242 states and 124579 transitions. [2024-11-16 04:24:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:30,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 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 1521 [2024-11-16 04:24:30,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:30,302 INFO L225 Difference]: With dead ends: 120242 [2024-11-16 04:24:30,302 INFO L226 Difference]: Without dead ends: 59431 [2024-11-16 04:24:30,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:30,337 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 446 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:30,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 158 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:24:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59431 states. [2024-11-16 04:24:30,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59431 to 57358. [2024-11-16 04:24:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57358 states, 57357 states have (on average 1.025524347507715) internal successors, (58821), 57357 states have internal predecessors, (58821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57358 states to 57358 states and 58821 transitions. [2024-11-16 04:24:31,070 INFO L78 Accepts]: Start accepts. Automaton has 57358 states and 58821 transitions. Word has length 1521 [2024-11-16 04:24:31,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:31,071 INFO L471 AbstractCegarLoop]: Abstraction has 57358 states and 58821 transitions. [2024-11-16 04:24:31,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:31,071 INFO L276 IsEmpty]: Start isEmpty. Operand 57358 states and 58821 transitions. [2024-11-16 04:24:31,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1536 [2024-11-16 04:24:31,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:31,095 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:31,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 04:24:31,095 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:31,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:31,096 INFO L85 PathProgramCache]: Analyzing trace with hash -725477243, now seen corresponding path program 1 times [2024-11-16 04:24:31,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:31,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545640039] [2024-11-16 04:24:31,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:31,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3345 backedges. 1773 proven. 0 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2024-11-16 04:24:31,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:31,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545640039] [2024-11-16 04:24:31,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545640039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:31,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:31,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:24:31,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598962042] [2024-11-16 04:24:31,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:31,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:31,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:31,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:31,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:31,852 INFO L87 Difference]: Start difference. First operand 57358 states and 58821 transitions. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:33,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:33,326 INFO L93 Difference]: Finished difference Result 116096 states and 119041 transitions. [2024-11-16 04:24:33,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:33,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 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 1535 [2024-11-16 04:24:33,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:33,379 INFO L225 Difference]: With dead ends: 116096 [2024-11-16 04:24:33,379 INFO L226 Difference]: Without dead ends: 58049 [2024-11-16 04:24:33,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:33,394 INFO L432 NwaCegarLoop]: 941 mSDtfsCounter, 625 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:33,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 950 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:24:33,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58049 states. [2024-11-16 04:24:33,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58049 to 56667. [2024-11-16 04:24:33,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56667 states, 56666 states have (on average 1.0206825962658383) internal successors, (57838), 56666 states have internal predecessors, (57838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56667 states to 56667 states and 57838 transitions. [2024-11-16 04:24:33,805 INFO L78 Accepts]: Start accepts. Automaton has 56667 states and 57838 transitions. Word has length 1535 [2024-11-16 04:24:33,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:33,805 INFO L471 AbstractCegarLoop]: Abstraction has 56667 states and 57838 transitions. [2024-11-16 04:24:33,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 56667 states and 57838 transitions. [2024-11-16 04:24:34,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1606 [2024-11-16 04:24:34,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:24:34,026 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:34,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 04:24:34,027 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:24:34,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:24:34,027 INFO L85 PathProgramCache]: Analyzing trace with hash 271958222, now seen corresponding path program 1 times [2024-11-16 04:24:34,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:24:34,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168573447] [2024-11-16 04:24:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:24:34,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:24:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:24:34,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3733 backedges. 2341 proven. 0 refuted. 0 times theorem prover too weak. 1392 trivial. 0 not checked. [2024-11-16 04:24:34,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:24:34,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168573447] [2024-11-16 04:24:34,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168573447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:24:34,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:24:34,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:24:34,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801749789] [2024-11-16 04:24:34,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:24:34,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:24:34,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:24:34,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:24:34,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:34,827 INFO L87 Difference]: Start difference. First operand 56667 states and 57838 transitions. Second operand has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:36,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:24:36,353 INFO L93 Difference]: Finished difference Result 138205 states and 141206 transitions. [2024-11-16 04:24:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:24:36,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 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 1605 [2024-11-16 04:24:36,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:24:36,355 INFO L225 Difference]: With dead ends: 138205 [2024-11-16 04:24:36,355 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:24:36,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:24:36,394 INFO L432 NwaCegarLoop]: 896 mSDtfsCounter, 541 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:24:36,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 903 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:24:36,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:24:36,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:24:36,395 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 04:24:36,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:24:36,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1605 [2024-11-16 04:24:36,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:24:36,395 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:24:36,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:24:36,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:24:36,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:24:36,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:24:36,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 04:24:36,400 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:24:36,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:24:38,070 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:24:38,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:24:38 BoogieIcfgContainer [2024-11-16 04:24:38,085 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:24:38,086 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:24:38,086 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:24:38,086 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:24:38,086 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:23:38" (3/4) ... [2024-11-16 04:24:38,088 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:24:38,125 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-16 04:24:38,129 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:24:38,132 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:24:38,136 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:24:38,347 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:24:38,348 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:24:38,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:24:38,349 INFO L158 Benchmark]: Toolchain (without parser) took 64523.87ms. Allocated memory was 182.5MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 135.2MB in the beginning and 5.7GB in the end (delta: -5.6GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-16 04:24:38,349 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory was 74.6MB in the beginning and 74.5MB in the end (delta: 144.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:24:38,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 921.00ms. Allocated memory is still 182.5MB. Free memory was 135.2MB in the beginning and 104.1MB in the end (delta: 31.0MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. [2024-11-16 04:24:38,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 222.85ms. Allocated memory is still 182.5MB. Free memory was 104.1MB in the beginning and 116.8MB in the end (delta: -12.7MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2024-11-16 04:24:38,352 INFO L158 Benchmark]: Boogie Preprocessor took 280.78ms. Allocated memory was 182.5MB in the beginning and 295.7MB in the end (delta: 113.2MB). Free memory was 116.8MB in the beginning and 176.2MB in the end (delta: -59.3MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2024-11-16 04:24:38,352 INFO L158 Benchmark]: IcfgBuilder took 2866.63ms. Allocated memory was 295.7MB in the beginning and 450.9MB in the end (delta: 155.2MB). Free memory was 176.2MB in the beginning and 315.6MB in the end (delta: -139.4MB). Peak memory consumption was 123.6MB. Max. memory is 16.1GB. [2024-11-16 04:24:38,352 INFO L158 Benchmark]: TraceAbstraction took 59963.74ms. Allocated memory was 450.9MB in the beginning and 7.5GB in the end (delta: 7.0GB). Free memory was 315.6MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-16 04:24:38,352 INFO L158 Benchmark]: Witness Printer took 262.53ms. Allocated memory is still 7.5GB. Free memory was 5.8GB in the beginning and 5.7GB in the end (delta: 55.6MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-11-16 04:24:38,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory was 74.6MB in the beginning and 74.5MB in the end (delta: 144.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 921.00ms. Allocated memory is still 182.5MB. Free memory was 135.2MB in the beginning and 104.1MB in the end (delta: 31.0MB). Peak memory consumption was 104.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 222.85ms. Allocated memory is still 182.5MB. Free memory was 104.1MB in the beginning and 116.8MB in the end (delta: -12.7MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 280.78ms. Allocated memory was 182.5MB in the beginning and 295.7MB in the end (delta: 113.2MB). Free memory was 116.8MB in the beginning and 176.2MB in the end (delta: -59.3MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * IcfgBuilder took 2866.63ms. Allocated memory was 295.7MB in the beginning and 450.9MB in the end (delta: 155.2MB). Free memory was 176.2MB in the beginning and 315.6MB in the end (delta: -139.4MB). Peak memory consumption was 123.6MB. Max. memory is 16.1GB. * TraceAbstraction took 59963.74ms. Allocated memory was 450.9MB in the beginning and 7.5GB in the end (delta: 7.0GB). Free memory was 315.6MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 262.53ms. Allocated memory is still 7.5GB. Free memory was 5.8GB in the beginning and 5.7GB in the end (delta: 55.6MB). Peak memory consumption was 52.4MB. 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: 184]: 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, 760 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.2s, OverallIterations: 20, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 35.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13706 SdHoareTripleChecker+Valid, 31.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13706 mSDsluCounter, 12443 SdHoareTripleChecker+Invalid, 25.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 194 mSDsCounter, 8817 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41724 IncrementalHoareTripleChecker+Invalid, 50541 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8817 mSolverCounterUnsat, 12249 mSDtfsCounter, 41724 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2218 GetRequests, 2184 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61504occurred in iteration=16, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.3s AutomataMinimizationTime, 20 MinimizatonAttempts, 12545 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 21269 NumberOfCodeBlocks, 21269 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 21247 ConstructedInterpolants, 0 QuantifiedInterpolants, 45931 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2469 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 22 InterpolantComputations, 20 PerfectInterpolantSequences, 27264/27894 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: 4269]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:24:38,379 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