./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.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/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.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 584cb00847e346bcb7b5af30068947c52ce3c4d690063caf12c5ab86dbf7ec89 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:18:42,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:18:42,726 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:18:42,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:18:42,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:18:42,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:18:42,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:18:42,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:18:42,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:18:42,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:18:42,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:18:42,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:18:42,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:18:42,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:18:42,779 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:18:42,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:18:42,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:18:42,781 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:18:42,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:18:42,782 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:18:42,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:18:42,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:18:42,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:18:42,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:18:42,783 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:18:42,783 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:18:42,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:18:42,784 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:18:42,784 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:18:42,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:18:42,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:18:42,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:18:42,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:18:42,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:18:42,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:18:42,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:18:42,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:18:42,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:18:42,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:18:42,786 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:18:42,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:18:42,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:18:42,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 584cb00847e346bcb7b5af30068947c52ce3c4d690063caf12c5ab86dbf7ec89 [2024-11-16 08:18:43,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:18:43,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:18:43,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:18:43,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:18:43,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:18:43,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2024-11-16 08:18:44,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:18:44,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:18:44,495 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2024-11-16 08:18:44,509 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5331e090a/ac8be236bd994ce3b1cd2decc198253d/FLAGad861a4a4 [2024-11-16 08:18:44,520 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5331e090a/ac8be236bd994ce3b1cd2decc198253d [2024-11-16 08:18:44,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:18:44,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:18:44,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:18:44,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:18:44,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:18:44,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:44,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ad5f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44, skipping insertion in model container [2024-11-16 08:18:44,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:44,558 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:18:44,807 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/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c[26490,26503] [2024-11-16 08:18:44,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:18:44,827 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:18:44,890 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/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c[26490,26503] [2024-11-16 08:18:44,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:18:44,921 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:18:44,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44 WrapperNode [2024-11-16 08:18:44,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:18:44,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:18:44,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:18:44,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:18:44,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:44,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:44,979 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 532 [2024-11-16 08:18:44,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:18:44,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:18:44,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:18:44,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:18:44,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:44,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:44,996 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:45,018 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 08:18:45,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:45,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:45,028 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:45,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:45,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:45,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:45,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:18:45,035 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:18:45,035 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:18:45,035 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:18:45,036 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (1/1) ... [2024-11-16 08:18:45,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:18:45,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:18:45,075 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 08:18:45,077 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 08:18:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:18:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:18:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:18:45,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:18:45,287 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:18:45,289 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:18:45,755 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-16 08:18:45,755 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:18:45,773 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:18:45,773 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:18:45,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:18:45 BoogieIcfgContainer [2024-11-16 08:18:45,774 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:18:45,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:18:45,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:18:45,782 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:18:45,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:18:44" (1/3) ... [2024-11-16 08:18:45,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0aed6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:18:45, skipping insertion in model container [2024-11-16 08:18:45,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:44" (2/3) ... [2024-11-16 08:18:45,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0aed6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:18:45, skipping insertion in model container [2024-11-16 08:18:45,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:18:45" (3/3) ... [2024-11-16 08:18:45,784 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2024-11-16 08:18:45,802 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:18:45,802 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:18:45,863 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:18:45,869 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;@326cfec8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:18:45,869 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:18:45,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 133 states have (on average 1.7744360902255638) internal successors, (236), 134 states have internal predecessors, (236), 0 states have call successors, (0), 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 08:18:45,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-16 08:18:45,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:45,880 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] [2024-11-16 08:18:45,880 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:45,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:45,884 INFO L85 PathProgramCache]: Analyzing trace with hash -407824333, now seen corresponding path program 1 times [2024-11-16 08:18:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:45,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395461655] [2024-11-16 08:18:45,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:45,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:46,166 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 08:18:46,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:46,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395461655] [2024-11-16 08:18:46,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395461655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:46,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:46,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 08:18:46,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060160629] [2024-11-16 08:18:46,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:46,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 08:18:46,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:46,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 08:18:46,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:18:46,202 INFO L87 Difference]: Start difference. First operand has 135 states, 133 states have (on average 1.7744360902255638) internal successors, (236), 134 states have internal predecessors, (236), 0 states have call successors, (0), 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 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 08:18:46,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:46,230 INFO L93 Difference]: Finished difference Result 203 states and 343 transitions. [2024-11-16 08:18:46,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 08:18:46,232 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2024-11-16 08:18:46,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:46,241 INFO L225 Difference]: With dead ends: 203 [2024-11-16 08:18:46,241 INFO L226 Difference]: Without dead ends: 130 [2024-11-16 08:18:46,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:18:46,248 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:46,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:46,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-16 08:18:46,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-11-16 08:18:46,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.7674418604651163) internal successors, (228), 129 states have internal predecessors, (228), 0 states have call successors, (0), 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 08:18:46,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 228 transitions. [2024-11-16 08:18:46,286 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 228 transitions. Word has length 31 [2024-11-16 08:18:46,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:46,288 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 228 transitions. [2024-11-16 08:18:46,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 08:18:46,288 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 228 transitions. [2024-11-16 08:18:46,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-16 08:18:46,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:46,289 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] [2024-11-16 08:18:46,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:18:46,290 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:46,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:46,290 INFO L85 PathProgramCache]: Analyzing trace with hash -376804526, now seen corresponding path program 1 times [2024-11-16 08:18:46,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:46,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298835891] [2024-11-16 08:18:46,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:46,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:46,564 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 08:18:46,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:46,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298835891] [2024-11-16 08:18:46,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298835891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:46,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:46,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:18:46,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269429796] [2024-11-16 08:18:46,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:46,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:18:46,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:46,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:18:46,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:18:46,568 INFO L87 Difference]: Start difference. First operand 130 states and 228 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 08:18:46,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:46,670 INFO L93 Difference]: Finished difference Result 197 states and 332 transitions. [2024-11-16 08:18:46,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:18:46,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2024-11-16 08:18:46,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:46,671 INFO L225 Difference]: With dead ends: 197 [2024-11-16 08:18:46,671 INFO L226 Difference]: Without dead ends: 130 [2024-11-16 08:18:46,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:18:46,673 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:46,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 838 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-16 08:18:46,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-11-16 08:18:46,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.2945736434108528) internal successors, (167), 129 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:46,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 167 transitions. [2024-11-16 08:18:46,679 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 167 transitions. Word has length 31 [2024-11-16 08:18:46,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:46,680 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 167 transitions. [2024-11-16 08:18:46,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 08:18:46,680 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 167 transitions. [2024-11-16 08:18:46,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 08:18:46,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:46,685 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:46,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:18:46,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:46,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:46,686 INFO L85 PathProgramCache]: Analyzing trace with hash 552981270, now seen corresponding path program 1 times [2024-11-16 08:18:46,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:46,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889111247] [2024-11-16 08:18:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:46,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:47,141 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 08:18:47,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:47,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889111247] [2024-11-16 08:18:47,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889111247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:47,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:47,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 08:18:47,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004440946] [2024-11-16 08:18:47,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:47,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:18:47,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:47,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:18:47,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:18:47,146 INFO L87 Difference]: Start difference. First operand 130 states and 167 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 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 08:18:47,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:47,644 INFO L93 Difference]: Finished difference Result 1138 states and 1767 transitions. [2024-11-16 08:18:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:18:47,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-16 08:18:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:47,654 INFO L225 Difference]: With dead ends: 1138 [2024-11-16 08:18:47,656 INFO L226 Difference]: Without dead ends: 1075 [2024-11-16 08:18:47,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-16 08:18:47,659 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1894 mSDsluCounter, 4619 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:47,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 4780 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:18:47,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2024-11-16 08:18:47,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 190. [2024-11-16 08:18:47,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 189 states have (on average 1.3915343915343916) internal successors, (263), 189 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 263 transitions. [2024-11-16 08:18:47,702 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 263 transitions. Word has length 91 [2024-11-16 08:18:47,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:47,702 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 263 transitions. [2024-11-16 08:18:47,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 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 08:18:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 263 transitions. [2024-11-16 08:18:47,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 08:18:47,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:47,705 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:47,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:18:47,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:47,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1128416280, now seen corresponding path program 1 times [2024-11-16 08:18:47,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:47,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480675025] [2024-11-16 08:18:47,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:47,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:48,273 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 08:18:48,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:48,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480675025] [2024-11-16 08:18:48,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480675025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:48,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:48,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 08:18:48,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409168146] [2024-11-16 08:18:48,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:48,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:18:48,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:48,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:18:48,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:18:48,275 INFO L87 Difference]: Start difference. First operand 190 states and 263 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 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 08:18:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:48,685 INFO L93 Difference]: Finished difference Result 316 states and 461 transitions. [2024-11-16 08:18:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:18:48,686 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-16 08:18:48,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:48,688 INFO L225 Difference]: With dead ends: 316 [2024-11-16 08:18:48,688 INFO L226 Difference]: Without dead ends: 193 [2024-11-16 08:18:48,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:18:48,691 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 498 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:48,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 842 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-16 08:18:48,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2024-11-16 08:18:48,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 189 states have (on average 1.3862433862433863) internal successors, (262), 189 states have internal predecessors, (262), 0 states have call successors, (0), 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 08:18:48,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 262 transitions. [2024-11-16 08:18:48,704 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 262 transitions. Word has length 93 [2024-11-16 08:18:48,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:48,704 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 262 transitions. [2024-11-16 08:18:48,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 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 08:18:48,704 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 262 transitions. [2024-11-16 08:18:48,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 08:18:48,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:48,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:48,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:18:48,709 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:48,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:48,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1949981780, now seen corresponding path program 1 times [2024-11-16 08:18:48,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:48,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150189958] [2024-11-16 08:18:48,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:48,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:48,824 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 08:18:48,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:48,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150189958] [2024-11-16 08:18:48,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150189958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:48,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:48,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:48,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881472686] [2024-11-16 08:18:48,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:48,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:48,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:48,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:48,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:48,827 INFO L87 Difference]: Start difference. First operand 190 states and 262 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 08:18:48,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:48,876 INFO L93 Difference]: Finished difference Result 424 states and 632 transitions. [2024-11-16 08:18:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:48,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-16 08:18:48,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:48,878 INFO L225 Difference]: With dead ends: 424 [2024-11-16 08:18:48,878 INFO L226 Difference]: Without dead ends: 301 [2024-11-16 08:18:48,878 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 08:18:48,879 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 69 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:48,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 259 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:48,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-16 08:18:48,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 298. [2024-11-16 08:18:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 1.4545454545454546) internal successors, (432), 297 states have internal predecessors, (432), 0 states have call successors, (0), 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 08:18:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 432 transitions. [2024-11-16 08:18:48,911 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 432 transitions. Word has length 94 [2024-11-16 08:18:48,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:48,911 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 432 transitions. [2024-11-16 08:18:48,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 08:18:48,912 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 432 transitions. [2024-11-16 08:18:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:48,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:48,913 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:48,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:18:48,914 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:48,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:48,918 INFO L85 PathProgramCache]: Analyzing trace with hash -214538694, now seen corresponding path program 1 times [2024-11-16 08:18:48,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:48,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455711898] [2024-11-16 08:18:48,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:48,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:49,073 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 08:18:49,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:49,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455711898] [2024-11-16 08:18:49,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455711898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:49,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:49,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:49,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333861498] [2024-11-16 08:18:49,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:49,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:49,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:49,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:49,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:49,080 INFO L87 Difference]: Start difference. First operand 298 states and 432 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:49,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:49,112 INFO L93 Difference]: Finished difference Result 744 states and 1134 transitions. [2024-11-16 08:18:49,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:49,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-16 08:18:49,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:49,114 INFO L225 Difference]: With dead ends: 744 [2024-11-16 08:18:49,114 INFO L226 Difference]: Without dead ends: 513 [2024-11-16 08:18:49,115 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 08:18:49,116 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 87 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:49,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:49,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-16 08:18:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 510. [2024-11-16 08:18:49,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 509 states have (on average 1.49901768172888) internal successors, (763), 509 states have internal predecessors, (763), 0 states have call successors, (0), 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 08:18:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 763 transitions. [2024-11-16 08:18:49,150 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 763 transitions. Word has length 95 [2024-11-16 08:18:49,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:49,154 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 763 transitions. [2024-11-16 08:18:49,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:49,155 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 763 transitions. [2024-11-16 08:18:49,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:49,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:49,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:49,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:18:49,156 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:49,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:49,156 INFO L85 PathProgramCache]: Analyzing trace with hash 893561210, now seen corresponding path program 1 times [2024-11-16 08:18:49,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:49,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018850836] [2024-11-16 08:18:49,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:49,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:49,329 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 08:18:49,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:49,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018850836] [2024-11-16 08:18:49,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018850836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:49,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:49,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:49,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230820518] [2024-11-16 08:18:49,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:49,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:49,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:49,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:49,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:49,334 INFO L87 Difference]: Start difference. First operand 510 states and 763 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:49,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:49,369 INFO L93 Difference]: Finished difference Result 1364 states and 2099 transitions. [2024-11-16 08:18:49,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:49,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-16 08:18:49,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:49,373 INFO L225 Difference]: With dead ends: 1364 [2024-11-16 08:18:49,373 INFO L226 Difference]: Without dead ends: 921 [2024-11-16 08:18:49,379 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 08:18:49,379 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 85 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:49,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 352 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:49,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-16 08:18:49,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 918. [2024-11-16 08:18:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 917 states have (on average 1.5190839694656488) internal successors, (1393), 917 states have internal predecessors, (1393), 0 states have call successors, (0), 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 08:18:49,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1393 transitions. [2024-11-16 08:18:49,420 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1393 transitions. Word has length 95 [2024-11-16 08:18:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:49,421 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1393 transitions. [2024-11-16 08:18:49,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:49,422 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1393 transitions. [2024-11-16 08:18:49,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:49,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:49,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:49,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:18:49,423 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:49,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:49,425 INFO L85 PathProgramCache]: Analyzing trace with hash 403094714, now seen corresponding path program 1 times [2024-11-16 08:18:49,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:49,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050061748] [2024-11-16 08:18:49,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:49,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:49,593 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 08:18:49,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:49,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050061748] [2024-11-16 08:18:49,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050061748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:49,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:49,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:49,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065022492] [2024-11-16 08:18:49,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:49,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:49,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:49,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:49,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:49,595 INFO L87 Difference]: Start difference. First operand 918 states and 1393 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:49,656 INFO L93 Difference]: Finished difference Result 2556 states and 3933 transitions. [2024-11-16 08:18:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:49,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-16 08:18:49,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:49,667 INFO L225 Difference]: With dead ends: 2556 [2024-11-16 08:18:49,667 INFO L226 Difference]: Without dead ends: 1705 [2024-11-16 08:18:49,668 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 08:18:49,673 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 83 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:49,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 354 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:49,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-11-16 08:18:49,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1702. [2024-11-16 08:18:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1701 states have (on average 1.5220458553791887) internal successors, (2589), 1701 states have internal predecessors, (2589), 0 states have call successors, (0), 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 08:18:49,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2589 transitions. [2024-11-16 08:18:49,743 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2589 transitions. Word has length 95 [2024-11-16 08:18:49,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:49,744 INFO L471 AbstractCegarLoop]: Abstraction has 1702 states and 2589 transitions. [2024-11-16 08:18:49,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2589 transitions. [2024-11-16 08:18:49,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:49,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:49,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:49,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:18:49,750 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:49,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:49,751 INFO L85 PathProgramCache]: Analyzing trace with hash 121020410, now seen corresponding path program 1 times [2024-11-16 08:18:49,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:49,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865286504] [2024-11-16 08:18:49,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:49,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:49,879 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 08:18:49,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:49,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865286504] [2024-11-16 08:18:49,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865286504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:49,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:49,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:49,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50282434] [2024-11-16 08:18:49,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:49,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:49,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:49,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:49,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:49,884 INFO L87 Difference]: Start difference. First operand 1702 states and 2589 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:49,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:49,967 INFO L93 Difference]: Finished difference Result 4844 states and 7409 transitions. [2024-11-16 08:18:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:49,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-16 08:18:49,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:49,986 INFO L225 Difference]: With dead ends: 4844 [2024-11-16 08:18:49,986 INFO L226 Difference]: Without dead ends: 3209 [2024-11-16 08:18:49,991 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 08:18:49,992 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 81 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:49,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 356 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:49,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3209 states. [2024-11-16 08:18:50,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3209 to 3206. [2024-11-16 08:18:50,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3206 states, 3205 states have (on average 1.5141965678627145) internal successors, (4853), 3205 states have internal predecessors, (4853), 0 states have call successors, (0), 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 08:18:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3206 states to 3206 states and 4853 transitions. [2024-11-16 08:18:50,095 INFO L78 Accepts]: Start accepts. Automaton has 3206 states and 4853 transitions. Word has length 95 [2024-11-16 08:18:50,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:50,095 INFO L471 AbstractCegarLoop]: Abstraction has 3206 states and 4853 transitions. [2024-11-16 08:18:50,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:50,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3206 states and 4853 transitions. [2024-11-16 08:18:50,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:50,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:50,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:50,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:18:50,097 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:50,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:50,097 INFO L85 PathProgramCache]: Analyzing trace with hash -880389318, now seen corresponding path program 1 times [2024-11-16 08:18:50,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:50,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123303295] [2024-11-16 08:18:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:50,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:50,193 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 08:18:50,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:50,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123303295] [2024-11-16 08:18:50,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123303295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:50,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:50,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:50,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934197870] [2024-11-16 08:18:50,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:50,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:50,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:50,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:50,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:50,195 INFO L87 Difference]: Start difference. First operand 3206 states and 4853 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:50,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:50,264 INFO L93 Difference]: Finished difference Result 9228 states and 13977 transitions. [2024-11-16 08:18:50,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:50,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-16 08:18:50,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:50,281 INFO L225 Difference]: With dead ends: 9228 [2024-11-16 08:18:50,281 INFO L226 Difference]: Without dead ends: 6089 [2024-11-16 08:18:50,287 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 08:18:50,288 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 79 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:50,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 358 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:50,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2024-11-16 08:18:50,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 6086. [2024-11-16 08:18:50,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6086 states, 6085 states have (on average 1.4995891536565324) internal successors, (9125), 6085 states have internal predecessors, (9125), 0 states have call successors, (0), 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 08:18:50,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 9125 transitions. [2024-11-16 08:18:50,421 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 9125 transitions. Word has length 95 [2024-11-16 08:18:50,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:50,422 INFO L471 AbstractCegarLoop]: Abstraction has 6086 states and 9125 transitions. [2024-11-16 08:18:50,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:50,422 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 9125 transitions. [2024-11-16 08:18:50,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:50,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:50,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:50,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:18:50,423 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:50,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:50,425 INFO L85 PathProgramCache]: Analyzing trace with hash -894839174, now seen corresponding path program 1 times [2024-11-16 08:18:50,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:50,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771575570] [2024-11-16 08:18:50,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:50,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:50,483 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 08:18:50,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:50,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771575570] [2024-11-16 08:18:50,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771575570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:50,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:50,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:50,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654567733] [2024-11-16 08:18:50,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:50,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:50,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:50,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:50,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:50,485 INFO L87 Difference]: Start difference. First operand 6086 states and 9125 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:50,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:50,675 INFO L93 Difference]: Finished difference Result 17612 states and 26345 transitions. [2024-11-16 08:18:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:50,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-16 08:18:50,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:50,708 INFO L225 Difference]: With dead ends: 17612 [2024-11-16 08:18:50,708 INFO L226 Difference]: Without dead ends: 11593 [2024-11-16 08:18:50,718 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 08:18:50,718 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 77 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:50,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 360 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:50,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11593 states. [2024-11-16 08:18:50,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11593 to 11590. [2024-11-16 08:18:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11590 states, 11589 states have (on average 1.4804556044524981) internal successors, (17157), 11589 states have internal predecessors, (17157), 0 states have call successors, (0), 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 08:18:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11590 states to 11590 states and 17157 transitions. [2024-11-16 08:18:51,043 INFO L78 Accepts]: Start accepts. Automaton has 11590 states and 17157 transitions. Word has length 95 [2024-11-16 08:18:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:51,044 INFO L471 AbstractCegarLoop]: Abstraction has 11590 states and 17157 transitions. [2024-11-16 08:18:51,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:51,044 INFO L276 IsEmpty]: Start isEmpty. Operand 11590 states and 17157 transitions. [2024-11-16 08:18:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:51,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:51,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:51,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:18:51,045 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:51,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:51,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1196763578, now seen corresponding path program 1 times [2024-11-16 08:18:51,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:51,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523360304] [2024-11-16 08:18:51,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:51,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:51,115 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 08:18:51,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:51,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523360304] [2024-11-16 08:18:51,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523360304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:51,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:51,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:51,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375974983] [2024-11-16 08:18:51,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:51,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:51,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:51,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:51,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:51,119 INFO L87 Difference]: Start difference. First operand 11590 states and 17157 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:51,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:51,460 INFO L93 Difference]: Finished difference Result 33612 states and 49545 transitions. [2024-11-16 08:18:51,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:51,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-16 08:18:51,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:51,509 INFO L225 Difference]: With dead ends: 33612 [2024-11-16 08:18:51,509 INFO L226 Difference]: Without dead ends: 22089 [2024-11-16 08:18:51,521 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 08:18:51,522 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 75 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:51,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 362 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:51,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22089 states. [2024-11-16 08:18:51,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22089 to 22086. [2024-11-16 08:18:51,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22086 states, 22085 states have (on average 1.4578673307674892) internal successors, (32197), 22085 states have internal predecessors, (32197), 0 states have call successors, (0), 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 08:18:52,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22086 states to 22086 states and 32197 transitions. [2024-11-16 08:18:52,046 INFO L78 Accepts]: Start accepts. Automaton has 22086 states and 32197 transitions. Word has length 95 [2024-11-16 08:18:52,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:52,047 INFO L471 AbstractCegarLoop]: Abstraction has 22086 states and 32197 transitions. [2024-11-16 08:18:52,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:52,048 INFO L276 IsEmpty]: Start isEmpty. Operand 22086 states and 32197 transitions. [2024-11-16 08:18:52,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:52,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:52,049 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:52,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:18:52,049 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:52,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:52,049 INFO L85 PathProgramCache]: Analyzing trace with hash 672486523, now seen corresponding path program 1 times [2024-11-16 08:18:52,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:52,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143003394] [2024-11-16 08:18:52,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:52,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:52,453 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 08:18:52,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:52,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143003394] [2024-11-16 08:18:52,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143003394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:52,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:52,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:18:52,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678293661] [2024-11-16 08:18:52,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:52,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:18:52,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:52,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:18:52,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:52,455 INFO L87 Difference]: Start difference. First operand 22086 states and 32197 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:52,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:52,707 INFO L93 Difference]: Finished difference Result 22857 states and 33223 transitions. [2024-11-16 08:18:52,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:18:52,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-16 08:18:52,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:52,743 INFO L225 Difference]: With dead ends: 22857 [2024-11-16 08:18:52,743 INFO L226 Difference]: Without dead ends: 22854 [2024-11-16 08:18:52,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:52,753 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:52,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1114 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:52,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22854 states. [2024-11-16 08:18:53,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22854 to 22854. [2024-11-16 08:18:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22854 states, 22853 states have (on average 1.4368791843521638) internal successors, (32837), 22853 states have internal predecessors, (32837), 0 states have call successors, (0), 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 08:18:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22854 states to 22854 states and 32837 transitions. [2024-11-16 08:18:53,272 INFO L78 Accepts]: Start accepts. Automaton has 22854 states and 32837 transitions. Word has length 95 [2024-11-16 08:18:53,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:53,273 INFO L471 AbstractCegarLoop]: Abstraction has 22854 states and 32837 transitions. [2024-11-16 08:18:53,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand 22854 states and 32837 transitions. [2024-11-16 08:18:53,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:53,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:53,274 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:53,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:18:53,274 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:53,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:53,274 INFO L85 PathProgramCache]: Analyzing trace with hash 53342970, now seen corresponding path program 1 times [2024-11-16 08:18:53,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:53,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846104006] [2024-11-16 08:18:53,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:53,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:53,381 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 08:18:53,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:53,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846104006] [2024-11-16 08:18:53,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846104006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:53,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:53,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:53,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173905967] [2024-11-16 08:18:53,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:53,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:53,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:53,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:53,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:53,383 INFO L87 Difference]: Start difference. First operand 22854 states and 32837 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:53,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:53,641 INFO L93 Difference]: Finished difference Result 46927 states and 67661 transitions. [2024-11-16 08:18:53,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:53,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-16 08:18:53,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:53,768 INFO L225 Difference]: With dead ends: 46927 [2024-11-16 08:18:53,769 INFO L226 Difference]: Without dead ends: 34380 [2024-11-16 08:18:53,786 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 08:18:53,787 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 89 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:53,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 352 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:53,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34380 states. [2024-11-16 08:18:54,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34380 to 34377. [2024-11-16 08:18:54,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34377 states, 34376 states have (on average 1.4282057249243658) internal successors, (49096), 34376 states have internal predecessors, (49096), 0 states have call successors, (0), 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 08:18:54,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34377 states to 34377 states and 49096 transitions. [2024-11-16 08:18:54,720 INFO L78 Accepts]: Start accepts. Automaton has 34377 states and 49096 transitions. Word has length 95 [2024-11-16 08:18:54,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:54,721 INFO L471 AbstractCegarLoop]: Abstraction has 34377 states and 49096 transitions. [2024-11-16 08:18:54,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 08:18:54,721 INFO L276 IsEmpty]: Start isEmpty. Operand 34377 states and 49096 transitions. [2024-11-16 08:18:54,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 08:18:54,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:54,728 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:54,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:18:54,728 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:54,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash 869485867, now seen corresponding path program 1 times [2024-11-16 08:18:54,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:54,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026419247] [2024-11-16 08:18:54,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:54,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:54,958 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 08:18:54,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:54,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026419247] [2024-11-16 08:18:54,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026419247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:54,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:54,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 08:18:54,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922611843] [2024-11-16 08:18:54,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:54,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:18:54,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:54,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:18:54,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:18:54,959 INFO L87 Difference]: Start difference. First operand 34377 states and 49096 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 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 08:18:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:58,378 INFO L93 Difference]: Finished difference Result 315876 states and 450906 transitions. [2024-11-16 08:18:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:18:58,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 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 122 [2024-11-16 08:18:58,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:59,056 INFO L225 Difference]: With dead ends: 315876 [2024-11-16 08:18:59,056 INFO L226 Difference]: Without dead ends: 281569 [2024-11-16 08:18:59,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:18:59,125 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 1595 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:59,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 2460 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:18:59,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281569 states. [2024-11-16 08:19:02,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281569 to 68681. [2024-11-16 08:19:02,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68681 states, 68680 states have (on average 1.4230634828188702) internal successors, (97736), 68680 states have internal predecessors, (97736), 0 states have call successors, (0), 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 08:19:02,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68681 states to 68681 states and 97736 transitions. [2024-11-16 08:19:02,386 INFO L78 Accepts]: Start accepts. Automaton has 68681 states and 97736 transitions. Word has length 122 [2024-11-16 08:19:02,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:02,387 INFO L471 AbstractCegarLoop]: Abstraction has 68681 states and 97736 transitions. [2024-11-16 08:19:02,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 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 08:19:02,387 INFO L276 IsEmpty]: Start isEmpty. Operand 68681 states and 97736 transitions. [2024-11-16 08:19:02,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 08:19:02,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:02,397 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:19:02,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:19:02,397 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:02,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:02,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1977585771, now seen corresponding path program 1 times [2024-11-16 08:19:02,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:02,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219305789] [2024-11-16 08:19:02,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:02,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 08:19:02,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:02,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219305789] [2024-11-16 08:19:02,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219305789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:02,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:02,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 08:19:02,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765034367] [2024-11-16 08:19:02,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:02,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:19:02,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:02,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:19:02,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:19:02,687 INFO L87 Difference]: Start difference. First operand 68681 states and 97736 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 08:19:07,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:07,129 INFO L93 Difference]: Finished difference Result 350180 states and 499546 transitions. [2024-11-16 08:19:07,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:19:07,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 122 [2024-11-16 08:19:07,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:07,921 INFO L225 Difference]: With dead ends: 350180 [2024-11-16 08:19:07,921 INFO L226 Difference]: Without dead ends: 315873 [2024-11-16 08:19:07,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:19:07,983 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 1619 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:07,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 2308 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:19:08,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315873 states. [2024-11-16 08:19:12,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315873 to 120265. [2024-11-16 08:19:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120265 states, 120264 states have (on average 1.4172154593228232) internal successors, (170440), 120264 states have internal predecessors, (170440), 0 states have call successors, (0), 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 08:19:12,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120265 states to 120265 states and 170440 transitions. [2024-11-16 08:19:12,591 INFO L78 Accepts]: Start accepts. Automaton has 120265 states and 170440 transitions. Word has length 122 [2024-11-16 08:19:12,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:12,592 INFO L471 AbstractCegarLoop]: Abstraction has 120265 states and 170440 transitions. [2024-11-16 08:19:12,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 08:19:12,592 INFO L276 IsEmpty]: Start isEmpty. Operand 120265 states and 170440 transitions. [2024-11-16 08:19:12,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 08:19:12,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:12,605 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:19:12,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:19:12,605 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:12,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:12,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1487119275, now seen corresponding path program 1 times [2024-11-16 08:19:12,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:12,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168150271] [2024-11-16 08:19:12,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:12,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:19:12,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:12,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168150271] [2024-11-16 08:19:12,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168150271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:12,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:12,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 08:19:12,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7629396] [2024-11-16 08:19:12,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:12,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:19:12,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:19:12,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:19:12,895 INFO L87 Difference]: Start difference. First operand 120265 states and 170440 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 08:19:19,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:19,441 INFO L93 Difference]: Finished difference Result 384484 states and 548186 transitions. [2024-11-16 08:19:19,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:19:19,441 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 122 [2024-11-16 08:19:19,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:20,134 INFO L225 Difference]: With dead ends: 384484 [2024-11-16 08:19:20,135 INFO L226 Difference]: Without dead ends: 350177 [2024-11-16 08:19:20,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:19:20,242 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 1659 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:20,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 2218 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:20,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350177 states. [2024-11-16 08:19:25,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350177 to 154569. [2024-11-16 08:19:25,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154569 states, 154568 states have (on average 1.4173697013612132) internal successors, (219080), 154568 states have internal predecessors, (219080), 0 states have call successors, (0), 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 08:19:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154569 states to 154569 states and 219080 transitions. [2024-11-16 08:19:25,810 INFO L78 Accepts]: Start accepts. Automaton has 154569 states and 219080 transitions. Word has length 122 [2024-11-16 08:19:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:19:25,811 INFO L471 AbstractCegarLoop]: Abstraction has 154569 states and 219080 transitions. [2024-11-16 08:19:25,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 08:19:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 154569 states and 219080 transitions. [2024-11-16 08:19:25,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 08:19:25,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:19:25,822 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:19:25,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:19:25,822 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:19:25,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:19:25,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1205044971, now seen corresponding path program 1 times [2024-11-16 08:19:25,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:19:25,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891749295] [2024-11-16 08:19:25,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:19:25,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:19:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:19:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:19:26,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:19:26,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891749295] [2024-11-16 08:19:26,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891749295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:19:26,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:19:26,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 08:19:26,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122328597] [2024-11-16 08:19:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:19:26,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:19:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:19:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:19:26,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:19:26,009 INFO L87 Difference]: Start difference. First operand 154569 states and 219080 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 08:19:33,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:33,163 INFO L93 Difference]: Finished difference Result 418788 states and 596826 transitions. [2024-11-16 08:19:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:19:33,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 122 [2024-11-16 08:19:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:34,065 INFO L225 Difference]: With dead ends: 418788 [2024-11-16 08:19:34,066 INFO L226 Difference]: Without dead ends: 384481 [2024-11-16 08:19:34,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:19:34,147 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 1708 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:34,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1708 Valid, 2157 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:19:34,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384481 states.