./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label57.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem15_label57.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 44d07c49543a420b190637df21c7e31435249a3781140dab3c41eadeeaf7c396 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:44:45,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:44:45,886 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:44:45,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:44:45,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:44:45,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:44:45,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:44:45,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:44:45,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:44:45,920 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:44:45,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:44:45,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:44:45,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:44:45,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:44:45,927 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:44:45,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:44:45,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:44:45,929 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:44:45,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:44:45,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:44:45,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:44:45,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:44:45,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:44:45,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:44:45,931 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:44:45,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:44:45,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:44:45,932 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:44:45,932 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:44:45,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:44:45,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:44:45,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:44:45,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:44:45,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:44:45,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:44:45,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:44:45,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:44:45,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:44:45,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:44:45,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:44:45,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:44:45,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:44:45,936 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44d07c49543a420b190637df21c7e31435249a3781140dab3c41eadeeaf7c396 [2024-11-09 19:44:46,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:44:46,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:44:46,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:44:46,273 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:44:46,274 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:44:46,275 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label57.c [2024-11-09 19:44:47,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:44:48,077 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:44:48,079 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label57.c [2024-11-09 19:44:48,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/673e418d6/b3df8d21536747c8a609b0028c2e986d/FLAGeb0ff15b2 [2024-11-09 19:44:48,119 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/673e418d6/b3df8d21536747c8a609b0028c2e986d [2024-11-09 19:44:48,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:44:48,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:44:48,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:44:48,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:44:48,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:44:48,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:44:48" (1/1) ... [2024-11-09 19:44:48,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6275357d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:48, skipping insertion in model container [2024-11-09 19:44:48,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:44:48" (1/1) ... [2024-11-09 19:44:48,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:44:48,441 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label57.c[5113,5126] [2024-11-09 19:44:48,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:44:48,821 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:44:48,846 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label57.c[5113,5126] [2024-11-09 19:44:49,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:44:49,077 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:44:49,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49 WrapperNode [2024-11-09 19:44:49,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:44:49,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:44:49,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:44:49,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:44:49,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,278 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-09 19:44:49,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:44:49,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:44:49,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:44:49,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:44:49,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,474 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 19:44:49,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,545 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:44:49,639 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:44:49,639 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:44:49,640 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:44:49,641 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (1/1) ... [2024-11-09 19:44:49,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:44:49,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:44:49,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 19:44:49,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 19:44:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:44:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:44:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:44:49,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:44:49,849 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:44:49,851 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:44:52,969 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2024-11-09 19:44:53,180 INFO L? ?]: Removed 697 outVars from TransFormulas that were not future-live. [2024-11-09 19:44:53,181 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:44:53,214 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:44:53,217 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:44:53,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:44:53 BoogieIcfgContainer [2024-11-09 19:44:53,218 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:44:53,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:44:53,221 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:44:53,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:44:53,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:44:48" (1/3) ... [2024-11-09 19:44:53,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe4843f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:44:53, skipping insertion in model container [2024-11-09 19:44:53,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:44:49" (2/3) ... [2024-11-09 19:44:53,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe4843f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:44:53, skipping insertion in model container [2024-11-09 19:44:53,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:44:53" (3/3) ... [2024-11-09 19:44:53,230 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label57.c [2024-11-09 19:44:53,248 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:44:53,249 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:44:53,339 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:44:53,347 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;@2d3c809f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:44:53,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:44:53,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 427 states, 425 states have (on average 2.3176470588235296) internal successors, (985), 426 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:44:53,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 19:44:53,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:53,363 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] [2024-11-09 19:44:53,364 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:53,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:53,370 INFO L85 PathProgramCache]: Analyzing trace with hash 996345262, now seen corresponding path program 1 times [2024-11-09 19:44:53,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:53,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639566318] [2024-11-09 19:44:53,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:53,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:53,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:44:53,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:53,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639566318] [2024-11-09 19:44:53,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639566318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:53,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:53,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:44:53,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169733647] [2024-11-09 19:44:53,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:53,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:53,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:53,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:53,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:53,831 INFO L87 Difference]: Start difference. First operand has 427 states, 425 states have (on average 2.3176470588235296) internal successors, (985), 426 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:44:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:56,199 INFO L93 Difference]: Finished difference Result 1160 states and 2808 transitions. [2024-11-09 19:44:56,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:56,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-11-09 19:44:56,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:56,232 INFO L225 Difference]: With dead ends: 1160 [2024-11-09 19:44:56,232 INFO L226 Difference]: Without dead ends: 668 [2024-11-09 19:44:56,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:56,241 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 512 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:56,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 388 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 19:44:56,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-09 19:44:56,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 666. [2024-11-09 19:44:56,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 665 states have (on average 2.177443609022556) internal successors, (1448), 665 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:44:56,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 1448 transitions. [2024-11-09 19:44:56,321 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 1448 transitions. Word has length 43 [2024-11-09 19:44:56,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:56,322 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 1448 transitions. [2024-11-09 19:44:56,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:44:56,323 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 1448 transitions. [2024-11-09 19:44:56,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 19:44:56,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:56,326 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:56,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:44:56,327 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:56,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash 629438007, now seen corresponding path program 1 times [2024-11-09 19:44:56,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:56,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132336133] [2024-11-09 19:44:56,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:56,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:44:56,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:56,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132336133] [2024-11-09 19:44:56,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132336133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:56,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:56,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:44:56,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266525233] [2024-11-09 19:44:56,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:56,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:56,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:56,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:56,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:56,681 INFO L87 Difference]: Start difference. First operand 666 states and 1448 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:44:58,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:44:58,371 INFO L93 Difference]: Finished difference Result 1631 states and 3482 transitions. [2024-11-09 19:44:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:44:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-09 19:44:58,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:44:58,376 INFO L225 Difference]: With dead ends: 1631 [2024-11-09 19:44:58,377 INFO L226 Difference]: Without dead ends: 967 [2024-11-09 19:44:58,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:58,380 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 469 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:44:58,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 341 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:44:58,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-11-09 19:44:58,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 967. [2024-11-09 19:44:58,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 966 states have (on average 2.0817805383022776) internal successors, (2011), 966 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:44:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 2011 transitions. [2024-11-09 19:44:58,415 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 2011 transitions. Word has length 109 [2024-11-09 19:44:58,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:44:58,415 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 2011 transitions. [2024-11-09 19:44:58,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:44:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 2011 transitions. [2024-11-09 19:44:58,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 19:44:58,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:44:58,421 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:44:58,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:44:58,421 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:44:58,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:44:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1526114468, now seen corresponding path program 1 times [2024-11-09 19:44:58,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:44:58,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051232759] [2024-11-09 19:44:58,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:44:58,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:44:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:44:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:44:58,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:44:58,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051232759] [2024-11-09 19:44:58,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051232759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:44:58,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:44:58,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:44:58,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490559461] [2024-11-09 19:44:58,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:44:58,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:44:58,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:44:58,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:44:58,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:44:58,656 INFO L87 Difference]: Start difference. First operand 967 states and 2011 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 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) [2024-11-09 19:45:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:00,772 INFO L93 Difference]: Finished difference Result 2238 states and 4819 transitions. [2024-11-09 19:45:00,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:00,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 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 114 [2024-11-09 19:45:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:00,780 INFO L225 Difference]: With dead ends: 2238 [2024-11-09 19:45:00,781 INFO L226 Difference]: Without dead ends: 1573 [2024-11-09 19:45:00,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:00,788 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 488 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:00,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 322 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:45:00,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2024-11-09 19:45:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1271. [2024-11-09 19:45:00,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 2.0338582677165356) internal successors, (2583), 1270 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:00,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 2583 transitions. [2024-11-09 19:45:00,824 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 2583 transitions. Word has length 114 [2024-11-09 19:45:00,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:00,825 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 2583 transitions. [2024-11-09 19:45:00,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 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) [2024-11-09 19:45:00,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 2583 transitions. [2024-11-09 19:45:00,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-09 19:45:00,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:00,833 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:00,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:45:00,834 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:00,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:00,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1879087351, now seen corresponding path program 1 times [2024-11-09 19:45:00,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:00,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777586661] [2024-11-09 19:45:00,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:00,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 19:45:01,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:01,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777586661] [2024-11-09 19:45:01,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777586661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:01,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:01,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:45:01,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507470908] [2024-11-09 19:45:01,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:01,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:01,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:01,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:01,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:01,146 INFO L87 Difference]: Start difference. First operand 1271 states and 2583 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:02,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:02,984 INFO L93 Difference]: Finished difference Result 3450 states and 7116 transitions. [2024-11-09 19:45:02,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:02,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 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 211 [2024-11-09 19:45:02,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:02,996 INFO L225 Difference]: With dead ends: 3450 [2024-11-09 19:45:02,996 INFO L226 Difference]: Without dead ends: 2181 [2024-11-09 19:45:03,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:03,004 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 490 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:03,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 344 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:45:03,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-09 19:45:03,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2176. [2024-11-09 19:45:03,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2175 states have (on average 1.9802298850574713) internal successors, (4307), 2175 states have internal predecessors, (4307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 4307 transitions. [2024-11-09 19:45:03,060 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 4307 transitions. Word has length 211 [2024-11-09 19:45:03,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:03,062 INFO L471 AbstractCegarLoop]: Abstraction has 2176 states and 4307 transitions. [2024-11-09 19:45:03,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:03,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 4307 transitions. [2024-11-09 19:45:03,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-09 19:45:03,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:03,068 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:03,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:45:03,069 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:03,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:03,070 INFO L85 PathProgramCache]: Analyzing trace with hash -508175267, now seen corresponding path program 1 times [2024-11-09 19:45:03,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:03,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771593864] [2024-11-09 19:45:03,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:03,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 19:45:03,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:03,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771593864] [2024-11-09 19:45:03,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771593864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:03,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:03,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:45:03,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438101494] [2024-11-09 19:45:03,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:03,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:03,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:03,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:03,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:03,799 INFO L87 Difference]: Start difference. First operand 2176 states and 4307 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:05,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:05,309 INFO L93 Difference]: Finished difference Result 4650 states and 9156 transitions. [2024-11-09 19:45:05,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:05,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 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 317 [2024-11-09 19:45:05,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:05,321 INFO L225 Difference]: With dead ends: 4650 [2024-11-09 19:45:05,322 INFO L226 Difference]: Without dead ends: 2476 [2024-11-09 19:45:05,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:05,326 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 337 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:05,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 363 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:45:05,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2024-11-09 19:45:05,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2024-11-09 19:45:05,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2475 states have (on average 1.9575757575757575) internal successors, (4845), 2475 states have internal predecessors, (4845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:05,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 4845 transitions. [2024-11-09 19:45:05,372 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 4845 transitions. Word has length 317 [2024-11-09 19:45:05,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:05,373 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 4845 transitions. [2024-11-09 19:45:05,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:05,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 4845 transitions. [2024-11-09 19:45:05,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-09 19:45:05,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:05,378 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:05,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:45:05,379 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:05,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:05,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1981691200, now seen corresponding path program 1 times [2024-11-09 19:45:05,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:05,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559255992] [2024-11-09 19:45:05,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:05,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:05,600 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 19:45:05,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:05,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559255992] [2024-11-09 19:45:05,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559255992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:05,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:05,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:05,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672759651] [2024-11-09 19:45:05,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:05,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:05,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:05,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:05,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:05,605 INFO L87 Difference]: Start difference. First operand 2476 states and 4845 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:07,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:07,508 INFO L93 Difference]: Finished difference Result 5251 states and 10505 transitions. [2024-11-09 19:45:07,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:07,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 332 [2024-11-09 19:45:07,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:07,521 INFO L225 Difference]: With dead ends: 5251 [2024-11-09 19:45:07,522 INFO L226 Difference]: Without dead ends: 3077 [2024-11-09 19:45:07,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:07,525 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 506 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:07,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 327 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:45:07,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2024-11-09 19:45:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2173. [2024-11-09 19:45:07,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 2172 states have (on average 1.977900552486188) internal successors, (4296), 2172 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 4296 transitions. [2024-11-09 19:45:07,574 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 4296 transitions. Word has length 332 [2024-11-09 19:45:07,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:07,575 INFO L471 AbstractCegarLoop]: Abstraction has 2173 states and 4296 transitions. [2024-11-09 19:45:07,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 4296 transitions. [2024-11-09 19:45:07,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-09 19:45:07,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:07,581 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:07,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:45:07,582 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:07,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:07,582 INFO L85 PathProgramCache]: Analyzing trace with hash 407717740, now seen corresponding path program 1 times [2024-11-09 19:45:07,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:07,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095669955] [2024-11-09 19:45:07,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:07,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 19:45:08,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:08,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095669955] [2024-11-09 19:45:08,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095669955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:08,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:08,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:08,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370317121] [2024-11-09 19:45:08,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:08,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:08,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:08,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:08,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:08,021 INFO L87 Difference]: Start difference. First operand 2173 states and 4296 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:09,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:09,715 INFO L93 Difference]: Finished difference Result 5254 states and 10588 transitions. [2024-11-09 19:45:09,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:09,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 391 [2024-11-09 19:45:09,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:09,729 INFO L225 Difference]: With dead ends: 5254 [2024-11-09 19:45:09,729 INFO L226 Difference]: Without dead ends: 3383 [2024-11-09 19:45:09,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:09,733 INFO L432 NwaCegarLoop]: 834 mSDtfsCounter, 519 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:09,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 873 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:45:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-11-09 19:45:09,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3083. [2024-11-09 19:45:09,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 3082 states have (on average 1.9383517196625568) internal successors, (5974), 3082 states have internal predecessors, (5974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 5974 transitions. [2024-11-09 19:45:09,792 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 5974 transitions. Word has length 391 [2024-11-09 19:45:09,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:09,793 INFO L471 AbstractCegarLoop]: Abstraction has 3083 states and 5974 transitions. [2024-11-09 19:45:09,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:09,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 5974 transitions. [2024-11-09 19:45:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-09 19:45:09,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:09,799 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:09,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:45:09,799 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:09,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:09,800 INFO L85 PathProgramCache]: Analyzing trace with hash -828261618, now seen corresponding path program 1 times [2024-11-09 19:45:09,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:09,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033802941] [2024-11-09 19:45:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:09,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:45:10,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:10,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033802941] [2024-11-09 19:45:10,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033802941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:10,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:10,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:10,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560371608] [2024-11-09 19:45:10,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:10,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:10,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:10,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:10,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:10,151 INFO L87 Difference]: Start difference. First operand 3083 states and 5974 transitions. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:11,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:11,704 INFO L93 Difference]: Finished difference Result 7075 states and 13950 transitions. [2024-11-09 19:45:11,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:11,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 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 396 [2024-11-09 19:45:11,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:11,719 INFO L225 Difference]: With dead ends: 7075 [2024-11-09 19:45:11,720 INFO L226 Difference]: Without dead ends: 4294 [2024-11-09 19:45:11,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:11,725 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 479 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:11,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 841 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:45:11,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2024-11-09 19:45:11,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 3991. [2024-11-09 19:45:11,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3991 states, 3990 states have (on average 1.9210526315789473) internal successors, (7665), 3990 states have internal predecessors, (7665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3991 states to 3991 states and 7665 transitions. [2024-11-09 19:45:11,812 INFO L78 Accepts]: Start accepts. Automaton has 3991 states and 7665 transitions. Word has length 396 [2024-11-09 19:45:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:11,813 INFO L471 AbstractCegarLoop]: Abstraction has 3991 states and 7665 transitions. [2024-11-09 19:45:11,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3991 states and 7665 transitions. [2024-11-09 19:45:11,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-09 19:45:11,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:11,820 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:11,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:45:11,820 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:11,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:11,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1641463300, now seen corresponding path program 1 times [2024-11-09 19:45:11,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:11,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053208618] [2024-11-09 19:45:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:11,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:12,188 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 19:45:12,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:12,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053208618] [2024-11-09 19:45:12,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053208618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:12,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:12,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:12,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987132915] [2024-11-09 19:45:12,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:12,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:12,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:12,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:12,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:12,191 INFO L87 Difference]: Start difference. First operand 3991 states and 7665 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:13,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:13,907 INFO L93 Difference]: Finished difference Result 8881 states and 17320 transitions. [2024-11-09 19:45:13,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:13,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 415 [2024-11-09 19:45:13,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:13,927 INFO L225 Difference]: With dead ends: 8881 [2024-11-09 19:45:13,927 INFO L226 Difference]: Without dead ends: 5192 [2024-11-09 19:45:13,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:13,933 INFO L432 NwaCegarLoop]: 814 mSDtfsCounter, 478 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:13,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 855 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:45:13,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2024-11-09 19:45:14,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 4889. [2024-11-09 19:45:14,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4889 states, 4888 states have (on average 1.9122340425531914) internal successors, (9347), 4888 states have internal predecessors, (9347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:14,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4889 states to 4889 states and 9347 transitions. [2024-11-09 19:45:14,090 INFO L78 Accepts]: Start accepts. Automaton has 4889 states and 9347 transitions. Word has length 415 [2024-11-09 19:45:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:14,091 INFO L471 AbstractCegarLoop]: Abstraction has 4889 states and 9347 transitions. [2024-11-09 19:45:14,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4889 states and 9347 transitions. [2024-11-09 19:45:14,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-09 19:45:14,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:14,101 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:14,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:45:14,101 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:14,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:14,105 INFO L85 PathProgramCache]: Analyzing trace with hash -901924734, now seen corresponding path program 1 times [2024-11-09 19:45:14,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:14,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884064530] [2024-11-09 19:45:14,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:14,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 494 proven. 39 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 19:45:14,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:14,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884064530] [2024-11-09 19:45:14,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884064530] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:45:14,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385276855] [2024-11-09 19:45:14,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:14,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:45:14,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:45:14,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:45:14,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:45:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:15,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:45:15,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:45:15,234 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-09 19:45:15,238 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:45:15,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385276855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:15,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:45:15,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:45:15,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217654700] [2024-11-09 19:45:15,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:15,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:15,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:15,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:15,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:45:15,245 INFO L87 Difference]: Start difference. First operand 4889 states and 9347 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:16,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:16,780 INFO L93 Difference]: Finished difference Result 10975 states and 21270 transitions. [2024-11-09 19:45:16,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:16,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 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 531 [2024-11-09 19:45:16,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:16,794 INFO L225 Difference]: With dead ends: 10975 [2024-11-09 19:45:16,794 INFO L226 Difference]: Without dead ends: 6388 [2024-11-09 19:45:16,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:45:16,801 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 608 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:16,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 684 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:45:16,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6388 states. [2024-11-09 19:45:16,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6388 to 6388. [2024-11-09 19:45:16,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6388 states, 6387 states have (on average 1.9340848598716143) internal successors, (12353), 6387 states have internal predecessors, (12353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6388 states to 6388 states and 12353 transitions. [2024-11-09 19:45:16,925 INFO L78 Accepts]: Start accepts. Automaton has 6388 states and 12353 transitions. Word has length 531 [2024-11-09 19:45:16,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:16,926 INFO L471 AbstractCegarLoop]: Abstraction has 6388 states and 12353 transitions. [2024-11-09 19:45:16,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:16,927 INFO L276 IsEmpty]: Start isEmpty. Operand 6388 states and 12353 transitions. [2024-11-09 19:45:16,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-11-09 19:45:16,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:16,938 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:16,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:45:17,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 19:45:17,139 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:17,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:17,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2074429170, now seen corresponding path program 1 times [2024-11-09 19:45:17,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:17,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641981431] [2024-11-09 19:45:17,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:17,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:17,684 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-09 19:45:17,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:17,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641981431] [2024-11-09 19:45:17,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641981431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:17,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:17,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:17,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038070473] [2024-11-09 19:45:17,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:17,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:17,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:17,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:17,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:17,687 INFO L87 Difference]: Start difference. First operand 6388 states and 12353 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:19,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:19,324 INFO L93 Difference]: Finished difference Result 17288 states and 33588 transitions. [2024-11-09 19:45:19,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:19,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 535 [2024-11-09 19:45:19,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:19,405 INFO L225 Difference]: With dead ends: 17288 [2024-11-09 19:45:19,406 INFO L226 Difference]: Without dead ends: 11202 [2024-11-09 19:45:19,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:19,413 INFO L432 NwaCegarLoop]: 823 mSDtfsCounter, 478 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:19,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 858 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:45:19,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11202 states. [2024-11-09 19:45:19,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11202 to 10891. [2024-11-09 19:45:19,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10891 states, 10890 states have (on average 1.9065197428833793) internal successors, (20762), 10890 states have internal predecessors, (20762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:19,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10891 states to 10891 states and 20762 transitions. [2024-11-09 19:45:19,559 INFO L78 Accepts]: Start accepts. Automaton has 10891 states and 20762 transitions. Word has length 535 [2024-11-09 19:45:19,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:19,560 INFO L471 AbstractCegarLoop]: Abstraction has 10891 states and 20762 transitions. [2024-11-09 19:45:19,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:19,561 INFO L276 IsEmpty]: Start isEmpty. Operand 10891 states and 20762 transitions. [2024-11-09 19:45:19,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2024-11-09 19:45:19,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:19,571 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:19,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:45:19,572 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:19,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:19,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1326431448, now seen corresponding path program 1 times [2024-11-09 19:45:19,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:19,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425476082] [2024-11-09 19:45:19,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:19,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:20,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 653 proven. 39 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-09 19:45:20,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:20,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425476082] [2024-11-09 19:45:20,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425476082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:45:20,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193847837] [2024-11-09 19:45:20,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:20,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:45:20,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:45:20,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:45:20,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:45:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:20,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:45:20,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:45:20,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 514 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-09 19:45:20,605 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:45:20,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193847837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:20,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:45:20,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:45:20,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335247355] [2024-11-09 19:45:20,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:20,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:20,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:20,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:20,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:45:20,608 INFO L87 Difference]: Start difference. First operand 10891 states and 20762 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:22,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:22,098 INFO L93 Difference]: Finished difference Result 21477 states and 40979 transitions. [2024-11-09 19:45:22,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:22,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 611 [2024-11-09 19:45:22,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:22,120 INFO L225 Difference]: With dead ends: 21477 [2024-11-09 19:45:22,120 INFO L226 Difference]: Without dead ends: 10888 [2024-11-09 19:45:22,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:45:22,131 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 485 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:22,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 840 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:45:22,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10888 states. [2024-11-09 19:45:22,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10888 to 10888. [2024-11-09 19:45:22,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10888 states, 10887 states have (on average 1.8486268026086157) internal successors, (20126), 10887 states have internal predecessors, (20126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:22,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10888 states to 10888 states and 20126 transitions. [2024-11-09 19:45:22,380 INFO L78 Accepts]: Start accepts. Automaton has 10888 states and 20126 transitions. Word has length 611 [2024-11-09 19:45:22,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:22,381 INFO L471 AbstractCegarLoop]: Abstraction has 10888 states and 20126 transitions. [2024-11-09 19:45:22,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 10888 states and 20126 transitions. [2024-11-09 19:45:22,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2024-11-09 19:45:22,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:22,395 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:22,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:45:22,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 19:45:22,597 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:22,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:22,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1162117417, now seen corresponding path program 1 times [2024-11-09 19:45:22,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:22,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211685342] [2024-11-09 19:45:22,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:22,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 578 proven. 39 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-09 19:45:23,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:23,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211685342] [2024-11-09 19:45:23,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211685342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:45:23,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979290110] [2024-11-09 19:45:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:23,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:45:23,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:45:23,342 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:45:23,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:45:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:23,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 19:45:23,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:45:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 578 proven. 39 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-09 19:45:24,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:45:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 578 proven. 39 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-09 19:45:25,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979290110] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:45:25,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:45:25,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 19:45:25,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621648438] [2024-11-09 19:45:25,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:45:25,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 19:45:25,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:25,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 19:45:25,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:45:25,297 INFO L87 Difference]: Start difference. First operand 10888 states and 20126 transitions. Second operand has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:33,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:33,808 INFO L93 Difference]: Finished difference Result 28940 states and 53398 transitions. [2024-11-09 19:45:33,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 19:45:33,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 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 611 [2024-11-09 19:45:33,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:33,831 INFO L225 Difference]: With dead ends: 28940 [2024-11-09 19:45:33,831 INFO L226 Difference]: Without dead ends: 12989 [2024-11-09 19:45:33,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1231 GetRequests, 1217 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-09 19:45:33,844 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 5468 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 11785 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5468 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 12465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 11785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:33,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5468 Valid, 347 Invalid, 12465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 11785 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-09 19:45:33,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12989 states. [2024-11-09 19:45:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12989 to 10286. [2024-11-09 19:45:33,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10286 states, 10285 states have (on average 1.805736509479825) internal successors, (18572), 10285 states have internal predecessors, (18572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:34,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10286 states to 10286 states and 18572 transitions. [2024-11-09 19:45:34,001 INFO L78 Accepts]: Start accepts. Automaton has 10286 states and 18572 transitions. Word has length 611 [2024-11-09 19:45:34,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:34,001 INFO L471 AbstractCegarLoop]: Abstraction has 10286 states and 18572 transitions. [2024-11-09 19:45:34,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:34,002 INFO L276 IsEmpty]: Start isEmpty. Operand 10286 states and 18572 transitions. [2024-11-09 19:45:34,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2024-11-09 19:45:34,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:34,009 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:34,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 19:45:34,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:45:34,210 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:34,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:34,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1526650652, now seen corresponding path program 1 times [2024-11-09 19:45:34,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:34,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711917386] [2024-11-09 19:45:34,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:34,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-09 19:45:34,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:34,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711917386] [2024-11-09 19:45:34,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711917386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:34,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:34,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:34,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327076326] [2024-11-09 19:45:34,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:34,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:34,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:34,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:34,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:34,710 INFO L87 Difference]: Start difference. First operand 10286 states and 18572 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:36,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:36,006 INFO L93 Difference]: Finished difference Result 23569 states and 42624 transitions. [2024-11-09 19:45:36,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:36,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 647 [2024-11-09 19:45:36,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:36,028 INFO L225 Difference]: With dead ends: 23569 [2024-11-09 19:45:36,028 INFO L226 Difference]: Without dead ends: 13285 [2024-11-09 19:45:36,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:36,038 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 505 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:36,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 773 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:45:36,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13285 states. [2024-11-09 19:45:36,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13285 to 12685. [2024-11-09 19:45:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12685 states, 12684 states have (on average 1.8012456638284453) internal successors, (22847), 12684 states have internal predecessors, (22847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:36,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12685 states to 12685 states and 22847 transitions. [2024-11-09 19:45:36,200 INFO L78 Accepts]: Start accepts. Automaton has 12685 states and 22847 transitions. Word has length 647 [2024-11-09 19:45:36,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:36,200 INFO L471 AbstractCegarLoop]: Abstraction has 12685 states and 22847 transitions. [2024-11-09 19:45:36,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:36,201 INFO L276 IsEmpty]: Start isEmpty. Operand 12685 states and 22847 transitions. [2024-11-09 19:45:36,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2024-11-09 19:45:36,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:36,210 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:36,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:45:36,210 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:36,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:36,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1280547634, now seen corresponding path program 1 times [2024-11-09 19:45:36,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:36,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407784372] [2024-11-09 19:45:36,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:36,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2024-11-09 19:45:36,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:36,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407784372] [2024-11-09 19:45:36,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407784372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:36,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:36,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:45:36,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082534327] [2024-11-09 19:45:36,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:36,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:45:36,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:36,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:45:36,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:45:36,724 INFO L87 Difference]: Start difference. First operand 12685 states and 22847 transitions. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:38,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:38,997 INFO L93 Difference]: Finished difference Result 29274 states and 52818 transitions. [2024-11-09 19:45:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:45:38,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 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 671 [2024-11-09 19:45:38,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:39,016 INFO L225 Difference]: With dead ends: 29274 [2024-11-09 19:45:39,017 INFO L226 Difference]: Without dead ends: 16591 [2024-11-09 19:45:39,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:45:39,028 INFO L432 NwaCegarLoop]: 626 mSDtfsCounter, 1118 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 2936 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 3108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 2936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:39,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 677 Invalid, 3108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 2936 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 19:45:39,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16591 states. [2024-11-09 19:45:39,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16591 to 15691. [2024-11-09 19:45:39,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15691 states, 15690 states have (on average 1.8006373486297005) internal successors, (28252), 15690 states have internal predecessors, (28252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15691 states to 15691 states and 28252 transitions. [2024-11-09 19:45:39,232 INFO L78 Accepts]: Start accepts. Automaton has 15691 states and 28252 transitions. Word has length 671 [2024-11-09 19:45:39,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:39,232 INFO L471 AbstractCegarLoop]: Abstraction has 15691 states and 28252 transitions. [2024-11-09 19:45:39,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:39,233 INFO L276 IsEmpty]: Start isEmpty. Operand 15691 states and 28252 transitions. [2024-11-09 19:45:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-09 19:45:39,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:39,244 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:39,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:45:39,244 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:39,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:39,245 INFO L85 PathProgramCache]: Analyzing trace with hash 846165644, now seen corresponding path program 1 times [2024-11-09 19:45:39,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:39,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82195276] [2024-11-09 19:45:39,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:39,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 505 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-09 19:45:39,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:39,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82195276] [2024-11-09 19:45:39,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82195276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:39,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:39,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:39,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846692066] [2024-11-09 19:45:39,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:39,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:39,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:39,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:39,662 INFO L87 Difference]: Start difference. First operand 15691 states and 28252 transitions. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:40,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:40,790 INFO L93 Difference]: Finished difference Result 31377 states and 56508 transitions. [2024-11-09 19:45:40,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:40,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 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 703 [2024-11-09 19:45:40,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:40,811 INFO L225 Difference]: With dead ends: 31377 [2024-11-09 19:45:40,811 INFO L226 Difference]: Without dead ends: 15988 [2024-11-09 19:45:40,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:40,821 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 669 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:40,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 70 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:45:40,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15988 states. [2024-11-09 19:45:40,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15988 to 15687. [2024-11-09 19:45:41,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15687 states, 15686 states have (on average 1.800650261379574) internal successors, (28245), 15686 states have internal predecessors, (28245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15687 states to 15687 states and 28245 transitions. [2024-11-09 19:45:41,037 INFO L78 Accepts]: Start accepts. Automaton has 15687 states and 28245 transitions. Word has length 703 [2024-11-09 19:45:41,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:41,037 INFO L471 AbstractCegarLoop]: Abstraction has 15687 states and 28245 transitions. [2024-11-09 19:45:41,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:41,038 INFO L276 IsEmpty]: Start isEmpty. Operand 15687 states and 28245 transitions. [2024-11-09 19:45:41,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-09 19:45:41,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:41,057 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:41,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:45:41,058 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:41,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:41,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1075509528, now seen corresponding path program 1 times [2024-11-09 19:45:41,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:41,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233021426] [2024-11-09 19:45:41,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:41,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1237 backedges. 657 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-11-09 19:45:41,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:41,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233021426] [2024-11-09 19:45:41,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233021426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:41,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:41,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:41,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455322737] [2024-11-09 19:45:41,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:41,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:41,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:41,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:41,617 INFO L87 Difference]: Start difference. First operand 15687 states and 28245 transitions. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:42,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:42,849 INFO L93 Difference]: Finished difference Result 33769 states and 60839 transitions. [2024-11-09 19:45:42,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:42,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 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 775 [2024-11-09 19:45:42,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:42,872 INFO L225 Difference]: With dead ends: 33769 [2024-11-09 19:45:42,872 INFO L226 Difference]: Without dead ends: 18384 [2024-11-09 19:45:42,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:42,884 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 417 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:42,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 165 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:45:42,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18384 states. [2024-11-09 19:45:43,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18384 to 16884. [2024-11-09 19:45:43,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16884 states, 16883 states have (on average 1.7981401409702067) internal successors, (30358), 16883 states have internal predecessors, (30358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:43,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16884 states to 16884 states and 30358 transitions. [2024-11-09 19:45:43,108 INFO L78 Accepts]: Start accepts. Automaton has 16884 states and 30358 transitions. Word has length 775 [2024-11-09 19:45:43,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:43,109 INFO L471 AbstractCegarLoop]: Abstraction has 16884 states and 30358 transitions. [2024-11-09 19:45:43,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:43,109 INFO L276 IsEmpty]: Start isEmpty. Operand 16884 states and 30358 transitions. [2024-11-09 19:45:43,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2024-11-09 19:45:43,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:43,134 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:43,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:45:43,134 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:43,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:43,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1161793649, now seen corresponding path program 1 times [2024-11-09 19:45:43,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:43,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233425530] [2024-11-09 19:45:43,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:43,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:43,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-11-09 19:45:43,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:43,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233425530] [2024-11-09 19:45:43,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233425530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:43,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:43,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:43,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333161430] [2024-11-09 19:45:43,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:43,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:43,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:43,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:43,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:43,614 INFO L87 Difference]: Start difference. First operand 16884 states and 30358 transitions. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:44,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:44,938 INFO L93 Difference]: Finished difference Result 36164 states and 65071 transitions. [2024-11-09 19:45:44,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:44,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 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 796 [2024-11-09 19:45:44,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:44,967 INFO L225 Difference]: With dead ends: 36164 [2024-11-09 19:45:44,967 INFO L226 Difference]: Without dead ends: 19282 [2024-11-09 19:45:44,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:44,981 INFO L432 NwaCegarLoop]: 668 mSDtfsCounter, 395 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:44,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 697 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:45:44,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19282 states. [2024-11-09 19:45:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19282 to 14778. [2024-11-09 19:45:45,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14778 states, 14777 states have (on average 1.7950192867293768) internal successors, (26525), 14777 states have internal predecessors, (26525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14778 states to 14778 states and 26525 transitions. [2024-11-09 19:45:45,165 INFO L78 Accepts]: Start accepts. Automaton has 14778 states and 26525 transitions. Word has length 796 [2024-11-09 19:45:45,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:45,166 INFO L471 AbstractCegarLoop]: Abstraction has 14778 states and 26525 transitions. [2024-11-09 19:45:45,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:45,167 INFO L276 IsEmpty]: Start isEmpty. Operand 14778 states and 26525 transitions. [2024-11-09 19:45:45,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2024-11-09 19:45:45,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:45,182 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:45,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 19:45:45,182 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:45,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:45,183 INFO L85 PathProgramCache]: Analyzing trace with hash 171540855, now seen corresponding path program 1 times [2024-11-09 19:45:45,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:45,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562007986] [2024-11-09 19:45:45,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:45,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 538 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2024-11-09 19:45:45,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:45,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562007986] [2024-11-09 19:45:45,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562007986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:45,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:45,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:45,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043651698] [2024-11-09 19:45:45,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:45,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:45,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:45,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:45,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:45,608 INFO L87 Difference]: Start difference. First operand 14778 states and 26525 transitions. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:46,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:46,770 INFO L93 Difference]: Finished difference Result 31053 states and 55775 transitions. [2024-11-09 19:45:46,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:46,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 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 832 [2024-11-09 19:45:46,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:46,791 INFO L225 Difference]: With dead ends: 31053 [2024-11-09 19:45:46,791 INFO L226 Difference]: Without dead ends: 16577 [2024-11-09 19:45:46,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:46,802 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 543 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:46,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 741 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:45:46,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16577 states. [2024-11-09 19:45:46,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16577 to 15677. [2024-11-09 19:45:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15677 states, 15676 states have (on average 1.794462873181934) internal successors, (28130), 15676 states have internal predecessors, (28130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:46,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15677 states to 15677 states and 28130 transitions. [2024-11-09 19:45:46,958 INFO L78 Accepts]: Start accepts. Automaton has 15677 states and 28130 transitions. Word has length 832 [2024-11-09 19:45:46,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:46,959 INFO L471 AbstractCegarLoop]: Abstraction has 15677 states and 28130 transitions. [2024-11-09 19:45:46,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:46,959 INFO L276 IsEmpty]: Start isEmpty. Operand 15677 states and 28130 transitions. [2024-11-09 19:45:46,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2024-11-09 19:45:46,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:46,974 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:46,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 19:45:46,974 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:46,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash 899369724, now seen corresponding path program 1 times [2024-11-09 19:45:46,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:46,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584061221] [2024-11-09 19:45:46,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:46,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 603 proven. 270 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-09 19:45:48,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:48,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584061221] [2024-11-09 19:45:48,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584061221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:45:48,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497233466] [2024-11-09 19:45:48,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:48,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:45:48,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:45:48,332 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:45:48,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 19:45:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:48,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:45:48,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:45:48,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 577 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-09 19:45:48,991 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:45:48,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497233466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:48,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:45:48,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 19:45:48,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099520569] [2024-11-09 19:45:48,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:48,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:45:48,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:48,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:45:48,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:45:48,995 INFO L87 Difference]: Start difference. First operand 15677 states and 28130 transitions. Second operand has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:50,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:50,969 INFO L93 Difference]: Finished difference Result 37368 states and 67048 transitions. [2024-11-09 19:45:50,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:45:50,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 0 states have call successors, (0), 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 853 [2024-11-09 19:45:50,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:50,992 INFO L225 Difference]: With dead ends: 37368 [2024-11-09 19:45:50,993 INFO L226 Difference]: Without dead ends: 21993 [2024-11-09 19:45:51,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 856 GetRequests, 851 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:45:51,003 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 968 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 2443 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:51,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 130 Invalid, 2597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2443 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:45:51,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21993 states. [2024-11-09 19:45:51,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21993 to 16281. [2024-11-09 19:45:51,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16281 states, 16280 states have (on average 1.7941646191646192) internal successors, (29209), 16280 states have internal predecessors, (29209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:51,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16281 states to 16281 states and 29209 transitions. [2024-11-09 19:45:51,189 INFO L78 Accepts]: Start accepts. Automaton has 16281 states and 29209 transitions. Word has length 853 [2024-11-09 19:45:51,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:51,190 INFO L471 AbstractCegarLoop]: Abstraction has 16281 states and 29209 transitions. [2024-11-09 19:45:51,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:51,190 INFO L276 IsEmpty]: Start isEmpty. Operand 16281 states and 29209 transitions. [2024-11-09 19:45:51,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 917 [2024-11-09 19:45:51,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:51,202 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:51,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 19:45:51,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:45:51,402 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:51,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:51,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1782795220, now seen corresponding path program 1 times [2024-11-09 19:45:51,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:51,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734739142] [2024-11-09 19:45:51,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:51,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 933 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-11-09 19:45:52,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:52,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734739142] [2024-11-09 19:45:52,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734739142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:52,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:52,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:52,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297888585] [2024-11-09 19:45:52,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:52,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:52,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:52,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:52,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:52,168 INFO L87 Difference]: Start difference. First operand 16281 states and 29209 transitions. Second operand has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:53,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:53,299 INFO L93 Difference]: Finished difference Result 26819 states and 48074 transitions. [2024-11-09 19:45:53,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:53,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 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 916 [2024-11-09 19:45:53,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:53,301 INFO L225 Difference]: With dead ends: 26819 [2024-11-09 19:45:53,301 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:45:53,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:53,311 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 554 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:53,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 70 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:45:53,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:45:53,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:45:53,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:53,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:45:53,312 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 916 [2024-11-09 19:45:53,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:53,312 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:45:53,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:53,312 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:45:53,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:45:53,315 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:45:53,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 19:45:53,318 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:53,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:45:55,435 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:45:55,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:45:55 BoogieIcfgContainer [2024-11-09 19:45:55,460 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:45:55,461 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:45:55,461 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:45:55,461 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:45:55,462 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:44:53" (3/4) ... [2024-11-09 19:45:55,467 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:45:55,510 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 19:45:55,513 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:45:55,517 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:45:55,520 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:45:55,778 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:45:55,778 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:45:55,778 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:45:55,780 INFO L158 Benchmark]: Toolchain (without parser) took 67653.66ms. Allocated memory was 157.3MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 125.2MB in the beginning and 1.1GB in the end (delta: -976.1MB). Peak memory consumption was 474.1MB. Max. memory is 16.1GB. [2024-11-09 19:45:55,780 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 157.3MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:45:55,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 949.51ms. Allocated memory is still 157.3MB. Free memory was 125.2MB in the beginning and 111.4MB in the end (delta: 13.8MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. [2024-11-09 19:45:55,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 199.47ms. Allocated memory is still 157.3MB. Free memory was 111.4MB in the beginning and 72.4MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 19:45:55,781 INFO L158 Benchmark]: Boogie Preprocessor took 358.54ms. Allocated memory is still 157.3MB. Free memory was 72.4MB in the beginning and 64.1MB in the end (delta: 8.3MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-11-09 19:45:55,781 INFO L158 Benchmark]: IcfgBuilder took 3579.50ms. Allocated memory was 157.3MB in the beginning and 394.3MB in the end (delta: 237.0MB). Free memory was 64.1MB in the beginning and 255.7MB in the end (delta: -191.6MB). Peak memory consumption was 108.6MB. Max. memory is 16.1GB. [2024-11-09 19:45:55,782 INFO L158 Benchmark]: TraceAbstraction took 62240.03ms. Allocated memory was 394.3MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 255.7MB in the beginning and 1.1GB in the end (delta: -887.4MB). Peak memory consumption was 895.2MB. Max. memory is 16.1GB. [2024-11-09 19:45:55,782 INFO L158 Benchmark]: Witness Printer took 317.52ms. Allocated memory is still 1.6GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 19:45:55,785 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 157.3MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 949.51ms. Allocated memory is still 157.3MB. Free memory was 125.2MB in the beginning and 111.4MB in the end (delta: 13.8MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 199.47ms. Allocated memory is still 157.3MB. Free memory was 111.4MB in the beginning and 72.4MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 358.54ms. Allocated memory is still 157.3MB. Free memory was 72.4MB in the beginning and 64.1MB in the end (delta: 8.3MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * IcfgBuilder took 3579.50ms. Allocated memory was 157.3MB in the beginning and 394.3MB in the end (delta: 237.0MB). Free memory was 64.1MB in the beginning and 255.7MB in the end (delta: -191.6MB). Peak memory consumption was 108.6MB. Max. memory is 16.1GB. * TraceAbstraction took 62240.03ms. Allocated memory was 394.3MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 255.7MB in the beginning and 1.1GB in the end (delta: -887.4MB). Peak memory consumption was 895.2MB. Max. memory is 16.1GB. * Witness Printer took 317.52ms. Allocated memory is still 1.6GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 140]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 427 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.0s, OverallIterations: 21, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 41.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16486 SdHoareTripleChecker+Valid, 38.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16486 mSDsluCounter, 10706 SdHoareTripleChecker+Invalid, 32.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1014 mSDsCounter, 3757 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40792 IncrementalHoareTripleChecker+Invalid, 44549 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3757 mSolverCounterUnsat, 9692 mSDtfsCounter, 40792 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3282 GetRequests, 3237 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16884occurred in iteration=17, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 21 MinimizatonAttempts, 19550 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 13415 NumberOfCodeBlocks, 13415 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 14000 ConstructedInterpolants, 0 QuantifiedInterpolants, 40044 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3173 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 26 InterpolantComputations, 20 PerfectInterpolantSequences, 16472/16937 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1776]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 19:45:55,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE