./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71881827e42af7e93d8d7789f21cf70c42c80b5b7128690239afcf02ba9daf37 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:18:07,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:18:07,447 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:18:07,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:18:07,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:18:07,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:18:07,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:18:07,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:18:07,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:18:07,479 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:18:07,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:18:07,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:18:07,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:18:07,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:18:07,482 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:18:07,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:18:07,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:18:07,483 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:18:07,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:18:07,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:18:07,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:18:07,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:18:07,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:18:07,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:18:07,487 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:18:07,487 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:18:07,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:18:07,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:18:07,487 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:18:07,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:18:07,488 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:18:07,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:18:07,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:18:07,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:18:07,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:18:07,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:18:07,489 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:18:07,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:18:07,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:18:07,489 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:18:07,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:18:07,490 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:18:07,491 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71881827e42af7e93d8d7789f21cf70c42c80b5b7128690239afcf02ba9daf37 [2024-11-16 08:18:07,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:18:07,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:18:07,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:18:07,707 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:18:07,708 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:18:07,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c [2024-11-16 08:18:08,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:18:09,068 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:18:09,069 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c [2024-11-16 08:18:09,078 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c48ff063/81e48cac51234b3c9eb7023f8084fb82/FLAGa1d3e2d62 [2024-11-16 08:18:09,455 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c48ff063/81e48cac51234b3c9eb7023f8084fb82 [2024-11-16 08:18:09,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:18:09,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:18:09,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:18:09,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:18:09,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:18:09,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd45206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09, skipping insertion in model container [2024-11-16 08:18:09,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,486 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:18:09,658 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c[15103,15116] [2024-11-16 08:18:09,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:18:09,670 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:18:09,706 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c[15103,15116] [2024-11-16 08:18:09,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:18:09,720 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:18:09,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09 WrapperNode [2024-11-16 08:18:09,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:18:09,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:18:09,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:18:09,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:18:09,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,759 INFO L138 Inliner]: procedures = 26, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 395 [2024-11-16 08:18:09,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:18:09,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:18:09,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:18:09,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:18:09,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,769 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,785 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:18:09,786 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,794 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:18:09,801 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:18:09,801 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:18:09,802 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:18:09,802 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (1/1) ... [2024-11-16 08:18:09,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:18:09,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:18:09,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:18:09,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:18:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:18:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:18:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:18:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:18:09,966 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:18:09,969 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:18:10,271 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-16 08:18:10,271 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:18:10,284 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:18:10,285 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:18:10,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:18:10 BoogieIcfgContainer [2024-11-16 08:18:10,285 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:18:10,288 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:18:10,288 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:18:10,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:18:10,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:18:09" (1/3) ... [2024-11-16 08:18:10,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ac0450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:18:10, skipping insertion in model container [2024-11-16 08:18:10,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:09" (2/3) ... [2024-11-16 08:18:10,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ac0450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:18:10, skipping insertion in model container [2024-11-16 08:18:10,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:18:10" (3/3) ... [2024-11-16 08:18:10,293 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c [2024-11-16 08:18:10,304 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:18:10,304 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:18:10,346 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:18:10,350 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;@a7b0dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:18:10,350 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:18:10,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 102 states have (on average 1.7352941176470589) internal successors, (177), 103 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:10,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-16 08:18:10,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:10,358 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] [2024-11-16 08:18:10,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:10,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:10,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1402408, now seen corresponding path program 1 times [2024-11-16 08:18:10,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:10,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407768874] [2024-11-16 08:18:10,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:10,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:10,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:10,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:10,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407768874] [2024-11-16 08:18:10,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407768874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:10,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:10,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 08:18:10,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785547290] [2024-11-16 08:18:10,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:10,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 08:18:10,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:10,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 08:18:10,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:18:10,604 INFO L87 Difference]: Start difference. First operand has 104 states, 102 states have (on average 1.7352941176470589) internal successors, (177), 103 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:10,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:10,624 INFO L93 Difference]: Finished difference Result 158 states and 264 transitions. [2024-11-16 08:18:10,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 08:18:10,626 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-16 08:18:10,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:10,633 INFO L225 Difference]: With dead ends: 158 [2024-11-16 08:18:10,633 INFO L226 Difference]: Without dead ends: 99 [2024-11-16 08:18:10,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:18:10,639 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:10,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:10,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-16 08:18:10,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-16 08:18:10,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.7244897959183674) internal successors, (169), 98 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 169 transitions. [2024-11-16 08:18:10,667 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 169 transitions. Word has length 27 [2024-11-16 08:18:10,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:10,667 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 169 transitions. [2024-11-16 08:18:10,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:10,668 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 169 transitions. [2024-11-16 08:18:10,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-16 08:18:10,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:10,669 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] [2024-11-16 08:18:10,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:18:10,669 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:10,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:10,670 INFO L85 PathProgramCache]: Analyzing trace with hash -2036653881, now seen corresponding path program 1 times [2024-11-16 08:18:10,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:10,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011784558] [2024-11-16 08:18:10,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:10,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:10,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:10,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011784558] [2024-11-16 08:18:10,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011784558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:10,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:10,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:18:10,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461421570] [2024-11-16 08:18:10,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:10,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:18:10,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:10,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:18:10,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:18:10,873 INFO L87 Difference]: Start difference. First operand 99 states and 169 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:10,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:10,946 INFO L93 Difference]: Finished difference Result 156 states and 256 transitions. [2024-11-16 08:18:10,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:18:10,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-11-16 08:18:10,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:10,948 INFO L225 Difference]: With dead ends: 156 [2024-11-16 08:18:10,948 INFO L226 Difference]: Without dead ends: 99 [2024-11-16 08:18:10,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:18:10,949 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:10,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 623 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:10,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-16 08:18:10,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-16 08:18:10,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.316326530612245) internal successors, (129), 98 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:10,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 129 transitions. [2024-11-16 08:18:10,956 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 129 transitions. Word has length 27 [2024-11-16 08:18:10,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:10,957 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 129 transitions. [2024-11-16 08:18:10,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:10,957 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 129 transitions. [2024-11-16 08:18:10,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-16 08:18:10,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:10,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:10,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:18:10,959 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:10,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:10,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1215615910, now seen corresponding path program 1 times [2024-11-16 08:18:10,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:10,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092098154] [2024-11-16 08:18:10,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:10,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:11,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:11,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092098154] [2024-11-16 08:18:11,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092098154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:11,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:11,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:18:11,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092037577] [2024-11-16 08:18:11,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:11,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:18:11,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:11,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:18:11,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:11,215 INFO L87 Difference]: Start difference. First operand 99 states and 129 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:11,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:11,509 INFO L93 Difference]: Finished difference Result 735 states and 1125 transitions. [2024-11-16 08:18:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 08:18:11,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-16 08:18:11,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:11,517 INFO L225 Difference]: With dead ends: 735 [2024-11-16 08:18:11,518 INFO L226 Difference]: Without dead ends: 682 [2024-11-16 08:18:11,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:18:11,520 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1131 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 2172 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:11,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1131 Valid, 2172 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:11,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-16 08:18:11,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 149. [2024-11-16 08:18:11,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.4054054054054055) internal successors, (208), 148 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:11,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 208 transitions. [2024-11-16 08:18:11,536 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 208 transitions. Word has length 66 [2024-11-16 08:18:11,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:11,536 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 208 transitions. [2024-11-16 08:18:11,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:11,537 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 208 transitions. [2024-11-16 08:18:11,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:18:11,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:11,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:11,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:18:11,538 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:11,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:11,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2029821784, now seen corresponding path program 1 times [2024-11-16 08:18:11,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:11,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680005193] [2024-11-16 08:18:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:11,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:11,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:11,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680005193] [2024-11-16 08:18:11,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680005193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:11,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:11,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:18:11,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790932508] [2024-11-16 08:18:11,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:11,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:18:11,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:11,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:18:11,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:11,838 INFO L87 Difference]: Start difference. First operand 149 states and 208 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:12,031 INFO L93 Difference]: Finished difference Result 255 states and 372 transitions. [2024-11-16 08:18:12,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:18:12,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-16 08:18:12,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:12,033 INFO L225 Difference]: With dead ends: 255 [2024-11-16 08:18:12,034 INFO L226 Difference]: Without dead ends: 152 [2024-11-16 08:18:12,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:18:12,035 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 214 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:12,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 525 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:12,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-16 08:18:12,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 149. [2024-11-16 08:18:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.3986486486486487) internal successors, (207), 148 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 207 transitions. [2024-11-16 08:18:12,047 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 207 transitions. Word has length 68 [2024-11-16 08:18:12,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:12,048 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 207 transitions. [2024-11-16 08:18:12,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,050 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 207 transitions. [2024-11-16 08:18:12,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 08:18:12,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:12,052 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:12,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:18:12,052 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:12,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:12,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1071113956, now seen corresponding path program 1 times [2024-11-16 08:18:12,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:12,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287650941] [2024-11-16 08:18:12,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:12,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:12,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:12,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287650941] [2024-11-16 08:18:12,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287650941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:12,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:12,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:12,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989314473] [2024-11-16 08:18:12,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:12,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:12,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:12,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:12,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,154 INFO L87 Difference]: Start difference. First operand 149 states and 207 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:12,172 INFO L93 Difference]: Finished difference Result 343 states and 509 transitions. [2024-11-16 08:18:12,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:12,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-16 08:18:12,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:12,173 INFO L225 Difference]: With dead ends: 343 [2024-11-16 08:18:12,173 INFO L226 Difference]: Without dead ends: 240 [2024-11-16 08:18:12,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,175 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 55 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:12,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 201 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:12,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-16 08:18:12,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 235. [2024-11-16 08:18:12,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 234 states have (on average 1.4487179487179487) internal successors, (339), 234 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 339 transitions. [2024-11-16 08:18:12,192 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 339 transitions. Word has length 69 [2024-11-16 08:18:12,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:12,192 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 339 transitions. [2024-11-16 08:18:12,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,192 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 339 transitions. [2024-11-16 08:18:12,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 08:18:12,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:12,194 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:12,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:18:12,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:12,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:12,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1878193482, now seen corresponding path program 1 times [2024-11-16 08:18:12,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:12,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158296793] [2024-11-16 08:18:12,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:12,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:12,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:12,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:12,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158296793] [2024-11-16 08:18:12,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158296793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:12,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:12,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:12,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478856022] [2024-11-16 08:18:12,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:12,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:12,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:12,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:12,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,252 INFO L87 Difference]: Start difference. First operand 235 states and 339 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:12,266 INFO L93 Difference]: Finished difference Result 597 states and 897 transitions. [2024-11-16 08:18:12,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:12,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-16 08:18:12,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:12,268 INFO L225 Difference]: With dead ends: 597 [2024-11-16 08:18:12,269 INFO L226 Difference]: Without dead ends: 408 [2024-11-16 08:18:12,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,271 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 70 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:12,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 276 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:12,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-16 08:18:12,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 405. [2024-11-16 08:18:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 1.4801980198019802) internal successors, (598), 404 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 598 transitions. [2024-11-16 08:18:12,285 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 598 transitions. Word has length 70 [2024-11-16 08:18:12,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:12,286 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 598 transitions. [2024-11-16 08:18:12,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,286 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 598 transitions. [2024-11-16 08:18:12,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 08:18:12,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:12,287 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:12,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:18:12,287 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:12,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:12,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1596119178, now seen corresponding path program 1 times [2024-11-16 08:18:12,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:12,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429823023] [2024-11-16 08:18:12,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:12,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:12,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:12,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429823023] [2024-11-16 08:18:12,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429823023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:12,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:12,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:12,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356666248] [2024-11-16 08:18:12,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:12,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:12,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:12,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:12,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,344 INFO L87 Difference]: Start difference. First operand 405 states and 598 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:12,360 INFO L93 Difference]: Finished difference Result 1091 states and 1646 transitions. [2024-11-16 08:18:12,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:12,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-16 08:18:12,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:12,363 INFO L225 Difference]: With dead ends: 1091 [2024-11-16 08:18:12,363 INFO L226 Difference]: Without dead ends: 732 [2024-11-16 08:18:12,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,364 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 68 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:12,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 278 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:12,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-16 08:18:12,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 729. [2024-11-16 08:18:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 728 states have (on average 1.489010989010989) internal successors, (1084), 728 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1084 transitions. [2024-11-16 08:18:12,394 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1084 transitions. Word has length 70 [2024-11-16 08:18:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:12,394 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1084 transitions. [2024-11-16 08:18:12,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,394 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1084 transitions. [2024-11-16 08:18:12,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 08:18:12,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:12,396 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:12,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:18:12,396 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:12,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:12,397 INFO L85 PathProgramCache]: Analyzing trace with hash 594709450, now seen corresponding path program 1 times [2024-11-16 08:18:12,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:12,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783118837] [2024-11-16 08:18:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:12,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:12,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783118837] [2024-11-16 08:18:12,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783118837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:12,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:12,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:12,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038960660] [2024-11-16 08:18:12,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:12,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:12,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:12,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:12,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,449 INFO L87 Difference]: Start difference. First operand 729 states and 1084 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:12,472 INFO L93 Difference]: Finished difference Result 2031 states and 3048 transitions. [2024-11-16 08:18:12,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:12,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-16 08:18:12,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:12,476 INFO L225 Difference]: With dead ends: 2031 [2024-11-16 08:18:12,476 INFO L226 Difference]: Without dead ends: 1348 [2024-11-16 08:18:12,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,477 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 66 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:12,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 280 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2024-11-16 08:18:12,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1345. [2024-11-16 08:18:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1344 states have (on average 1.4821428571428572) internal successors, (1992), 1344 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1992 transitions. [2024-11-16 08:18:12,499 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1992 transitions. Word has length 70 [2024-11-16 08:18:12,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:12,499 INFO L471 AbstractCegarLoop]: Abstraction has 1345 states and 1992 transitions. [2024-11-16 08:18:12,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1992 transitions. [2024-11-16 08:18:12,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 08:18:12,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:12,500 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:12,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:18:12,501 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:12,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:12,501 INFO L85 PathProgramCache]: Analyzing trace with hash 580259594, now seen corresponding path program 1 times [2024-11-16 08:18:12,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:12,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375261355] [2024-11-16 08:18:12,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:12,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:12,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:12,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:12,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375261355] [2024-11-16 08:18:12,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375261355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:12,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:12,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:12,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935744424] [2024-11-16 08:18:12,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:12,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:12,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:12,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:12,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,543 INFO L87 Difference]: Start difference. First operand 1345 states and 1992 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:12,578 INFO L93 Difference]: Finished difference Result 3815 states and 5660 transitions. [2024-11-16 08:18:12,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:12,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-16 08:18:12,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:12,585 INFO L225 Difference]: With dead ends: 3815 [2024-11-16 08:18:12,585 INFO L226 Difference]: Without dead ends: 2516 [2024-11-16 08:18:12,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,587 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 64 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:12,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 282 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2024-11-16 08:18:12,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 2513. [2024-11-16 08:18:12,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2513 states, 2512 states have (on average 1.464968152866242) internal successors, (3680), 2512 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2513 states to 2513 states and 3680 transitions. [2024-11-16 08:18:12,658 INFO L78 Accepts]: Start accepts. Automaton has 2513 states and 3680 transitions. Word has length 70 [2024-11-16 08:18:12,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:12,659 INFO L471 AbstractCegarLoop]: Abstraction has 2513 states and 3680 transitions. [2024-11-16 08:18:12,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2513 states and 3680 transitions. [2024-11-16 08:18:12,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 08:18:12,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:12,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:12,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:18:12,660 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:12,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:12,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1623104950, now seen corresponding path program 1 times [2024-11-16 08:18:12,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:12,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028442586] [2024-11-16 08:18:12,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:12,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:12,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:12,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:12,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028442586] [2024-11-16 08:18:12,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028442586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:12,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:12,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:12,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119492484] [2024-11-16 08:18:12,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:12,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:12,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:12,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:12,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,720 INFO L87 Difference]: Start difference. First operand 2513 states and 3680 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:12,784 INFO L93 Difference]: Finished difference Result 7191 states and 10500 transitions. [2024-11-16 08:18:12,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:12,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-16 08:18:12,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:12,795 INFO L225 Difference]: With dead ends: 7191 [2024-11-16 08:18:12,796 INFO L226 Difference]: Without dead ends: 4724 [2024-11-16 08:18:12,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:12,799 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 62 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:12,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 284 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:12,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4724 states. [2024-11-16 08:18:12,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4724 to 4721. [2024-11-16 08:18:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4721 states, 4720 states have (on average 1.4406779661016949) internal successors, (6800), 4720 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4721 states to 4721 states and 6800 transitions. [2024-11-16 08:18:12,916 INFO L78 Accepts]: Start accepts. Automaton has 4721 states and 6800 transitions. Word has length 70 [2024-11-16 08:18:12,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:12,916 INFO L471 AbstractCegarLoop]: Abstraction has 4721 states and 6800 transitions. [2024-11-16 08:18:12,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:12,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4721 states and 6800 transitions. [2024-11-16 08:18:12,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 08:18:12,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:12,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:12,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:18:12,917 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:12,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:12,917 INFO L85 PathProgramCache]: Analyzing trace with hash -2147382005, now seen corresponding path program 1 times [2024-11-16 08:18:12,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:12,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579726119] [2024-11-16 08:18:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:12,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:13,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:13,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579726119] [2024-11-16 08:18:13,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579726119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:13,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:13,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:18:13,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671600107] [2024-11-16 08:18:13,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:13,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:18:13,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:13,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:18:13,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:18:13,059 INFO L87 Difference]: Start difference. First operand 4721 states and 6800 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:13,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:13,113 INFO L93 Difference]: Finished difference Result 4916 states and 7058 transitions. [2024-11-16 08:18:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:18:13,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-16 08:18:13,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:13,127 INFO L225 Difference]: With dead ends: 4916 [2024-11-16 08:18:13,128 INFO L226 Difference]: Without dead ends: 4913 [2024-11-16 08:18:13,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:18:13,130 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:13,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:13,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4913 states. [2024-11-16 08:18:13,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4913 to 4913. [2024-11-16 08:18:13,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4913 states, 4912 states have (on average 1.4169381107491856) internal successors, (6960), 4912 states have internal predecessors, (6960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:13,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4913 states to 4913 states and 6960 transitions. [2024-11-16 08:18:13,226 INFO L78 Accepts]: Start accepts. Automaton has 4913 states and 6960 transitions. Word has length 70 [2024-11-16 08:18:13,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:13,227 INFO L471 AbstractCegarLoop]: Abstraction has 4913 states and 6960 transitions. [2024-11-16 08:18:13,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:13,227 INFO L276 IsEmpty]: Start isEmpty. Operand 4913 states and 6960 transitions. [2024-11-16 08:18:13,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 08:18:13,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:13,227 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:13,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:18:13,228 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:13,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:13,228 INFO L85 PathProgramCache]: Analyzing trace with hash 812155242, now seen corresponding path program 1 times [2024-11-16 08:18:13,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:13,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513416703] [2024-11-16 08:18:13,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:13,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:13,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:13,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513416703] [2024-11-16 08:18:13,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513416703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:13,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:13,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:13,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103013784] [2024-11-16 08:18:13,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:13,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:13,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:13,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:13,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:13,270 INFO L87 Difference]: Start difference. First operand 4913 states and 6960 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:13,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:13,344 INFO L93 Difference]: Finished difference Result 10043 states and 14329 transitions. [2024-11-16 08:18:13,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:13,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-16 08:18:13,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:13,361 INFO L225 Difference]: With dead ends: 10043 [2024-11-16 08:18:13,383 INFO L226 Difference]: Without dead ends: 7287 [2024-11-16 08:18:13,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:13,387 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 69 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:13,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 277 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:13,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7287 states. [2024-11-16 08:18:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7287 to 7284. [2024-11-16 08:18:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7284 states, 7283 states have (on average 1.4086228202663738) internal successors, (10259), 7283 states have internal predecessors, (10259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7284 states to 7284 states and 10259 transitions. [2024-11-16 08:18:13,509 INFO L78 Accepts]: Start accepts. Automaton has 7284 states and 10259 transitions. Word has length 72 [2024-11-16 08:18:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:13,509 INFO L471 AbstractCegarLoop]: Abstraction has 7284 states and 10259 transitions. [2024-11-16 08:18:13,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 7284 states and 10259 transitions. [2024-11-16 08:18:13,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 08:18:13,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:13,512 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:13,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:18:13,512 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:13,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:13,512 INFO L85 PathProgramCache]: Analyzing trace with hash -4122003, now seen corresponding path program 1 times [2024-11-16 08:18:13,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:13,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880908093] [2024-11-16 08:18:13,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:13,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:13,684 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 08:18:13,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:13,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880908093] [2024-11-16 08:18:13,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880908093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:13,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:13,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:18:13,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358411571] [2024-11-16 08:18:13,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:13,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:18:13,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:13,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:18:13,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:13,687 INFO L87 Difference]: Start difference. First operand 7284 states and 10259 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:14,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:14,299 INFO L93 Difference]: Finished difference Result 52233 states and 73601 transitions. [2024-11-16 08:18:14,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:18:14,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-16 08:18:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:14,365 INFO L225 Difference]: With dead ends: 52233 [2024-11-16 08:18:14,365 INFO L226 Difference]: Without dead ends: 44998 [2024-11-16 08:18:14,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:18:14,378 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 877 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:14,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1245 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:14,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44998 states. [2024-11-16 08:18:14,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44998 to 14516. [2024-11-16 08:18:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14516 states, 14515 states have (on average 1.4034447123665175) internal successors, (20371), 14515 states have internal predecessors, (20371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14516 states to 14516 states and 20371 transitions. [2024-11-16 08:18:14,908 INFO L78 Accepts]: Start accepts. Automaton has 14516 states and 20371 transitions. Word has length 93 [2024-11-16 08:18:14,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:14,908 INFO L471 AbstractCegarLoop]: Abstraction has 14516 states and 20371 transitions. [2024-11-16 08:18:14,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:14,909 INFO L276 IsEmpty]: Start isEmpty. Operand 14516 states and 20371 transitions. [2024-11-16 08:18:14,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 08:18:14,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:14,914 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:14,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:18:14,914 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:14,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:14,914 INFO L85 PathProgramCache]: Analyzing trace with hash -286196307, now seen corresponding path program 1 times [2024-11-16 08:18:14,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:14,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756586315] [2024-11-16 08:18:14,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:14,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 08:18:15,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:15,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756586315] [2024-11-16 08:18:15,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756586315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:15,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:15,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:18:15,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091819132] [2024-11-16 08:18:15,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:15,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:18:15,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:15,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:18:15,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:15,086 INFO L87 Difference]: Start difference. First operand 14516 states and 20371 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:15,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:15,797 INFO L93 Difference]: Finished difference Result 59465 states and 83713 transitions. [2024-11-16 08:18:15,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:18:15,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-16 08:18:15,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:15,873 INFO L225 Difference]: With dead ends: 59465 [2024-11-16 08:18:15,873 INFO L226 Difference]: Without dead ends: 52230 [2024-11-16 08:18:15,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:18:15,889 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 909 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:15,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 1097 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:15,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52230 states. [2024-11-16 08:18:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52230 to 25396. [2024-11-16 08:18:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25396 states, 25395 states have (on average 1.396928529238039) internal successors, (35475), 25395 states have internal predecessors, (35475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:16,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25396 states to 25396 states and 35475 transitions. [2024-11-16 08:18:16,621 INFO L78 Accepts]: Start accepts. Automaton has 25396 states and 35475 transitions. Word has length 93 [2024-11-16 08:18:16,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:16,622 INFO L471 AbstractCegarLoop]: Abstraction has 25396 states and 35475 transitions. [2024-11-16 08:18:16,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:16,622 INFO L276 IsEmpty]: Start isEmpty. Operand 25396 states and 35475 transitions. [2024-11-16 08:18:16,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 08:18:16,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:16,625 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:16,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:18:16,626 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:16,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:16,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1287606035, now seen corresponding path program 1 times [2024-11-16 08:18:16,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:16,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185437403] [2024-11-16 08:18:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:16,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:18:16,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:16,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185437403] [2024-11-16 08:18:16,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185437403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:16,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:16,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:18:16,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002696264] [2024-11-16 08:18:16,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:16,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:18:16,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:16,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:18:16,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:16,782 INFO L87 Difference]: Start difference. First operand 25396 states and 35475 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:17,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:17,711 INFO L93 Difference]: Finished difference Result 66697 states and 93825 transitions. [2024-11-16 08:18:17,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:18:17,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-16 08:18:17,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:17,823 INFO L225 Difference]: With dead ends: 66697 [2024-11-16 08:18:17,824 INFO L226 Difference]: Without dead ends: 59462 [2024-11-16 08:18:17,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:18:17,837 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 947 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:17,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 1075 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:17,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59462 states. [2024-11-16 08:18:18,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59462 to 32628. [2024-11-16 08:18:18,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32628 states, 32627 states have (on average 1.3972170288411438) internal successors, (45587), 32627 states have internal predecessors, (45587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:18,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32628 states to 32628 states and 45587 transitions. [2024-11-16 08:18:18,598 INFO L78 Accepts]: Start accepts. Automaton has 32628 states and 45587 transitions. Word has length 93 [2024-11-16 08:18:18,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:18,598 INFO L471 AbstractCegarLoop]: Abstraction has 32628 states and 45587 transitions. [2024-11-16 08:18:18,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand 32628 states and 45587 transitions. [2024-11-16 08:18:18,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 08:18:18,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:18,601 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:18,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:18:18,601 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:18,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:18,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1302055891, now seen corresponding path program 1 times [2024-11-16 08:18:18,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:18,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584900007] [2024-11-16 08:18:18,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:18,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:18,721 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:18:18,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:18,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584900007] [2024-11-16 08:18:18,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584900007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:18,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:18,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:18:18,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130056267] [2024-11-16 08:18:18,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:18,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:18:18,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:18,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:18:18,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:18,723 INFO L87 Difference]: Start difference. First operand 32628 states and 45587 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:19,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:19,935 INFO L93 Difference]: Finished difference Result 73929 states and 103937 transitions. [2024-11-16 08:18:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:18:19,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-16 08:18:19,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:20,026 INFO L225 Difference]: With dead ends: 73929 [2024-11-16 08:18:20,026 INFO L226 Difference]: Without dead ends: 66694 [2024-11-16 08:18:20,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:18:20,052 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1004 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:20,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1054 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:20,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66694 states. [2024-11-16 08:18:20,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66694 to 39860. [2024-11-16 08:18:21,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39860 states, 39859 states have (on average 1.397400837953787) internal successors, (55699), 39859 states have internal predecessors, (55699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39860 states to 39860 states and 55699 transitions. [2024-11-16 08:18:21,054 INFO L78 Accepts]: Start accepts. Automaton has 39860 states and 55699 transitions. Word has length 93 [2024-11-16 08:18:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:21,055 INFO L471 AbstractCegarLoop]: Abstraction has 39860 states and 55699 transitions. [2024-11-16 08:18:21,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 39860 states and 55699 transitions. [2024-11-16 08:18:21,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 08:18:21,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:21,062 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:21,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:18:21,062 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:21,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:21,063 INFO L85 PathProgramCache]: Analyzing trace with hash 789546861, now seen corresponding path program 1 times [2024-11-16 08:18:21,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:21,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202803262] [2024-11-16 08:18:21,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:21,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:21,298 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 08:18:21,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:21,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202803262] [2024-11-16 08:18:21,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202803262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:21,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:21,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:18:21,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142254524] [2024-11-16 08:18:21,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:21,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:18:21,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:18:21,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:21,300 INFO L87 Difference]: Start difference. First operand 39860 states and 55699 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:22,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:22,250 INFO L93 Difference]: Finished difference Result 81161 states and 114049 transitions. [2024-11-16 08:18:22,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:18:22,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-16 08:18:22,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:22,362 INFO L225 Difference]: With dead ends: 81161 [2024-11-16 08:18:22,362 INFO L226 Difference]: Without dead ends: 73926 [2024-11-16 08:18:22,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:18:22,395 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 902 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:22,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 1155 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:22,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73926 states. [2024-11-16 08:18:23,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73926 to 47092. [2024-11-16 08:18:23,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47092 states, 47091 states have (on average 1.3975281901000192) internal successors, (65811), 47091 states have internal predecessors, (65811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:23,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47092 states to 47092 states and 65811 transitions. [2024-11-16 08:18:23,819 INFO L78 Accepts]: Start accepts. Automaton has 47092 states and 65811 transitions. Word has length 93 [2024-11-16 08:18:23,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:23,819 INFO L471 AbstractCegarLoop]: Abstraction has 47092 states and 65811 transitions. [2024-11-16 08:18:23,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 47092 states and 65811 transitions. [2024-11-16 08:18:23,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:23,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:23,824 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:23,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:18:23,824 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:23,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:23,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1671884369, now seen corresponding path program 1 times [2024-11-16 08:18:23,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:23,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534513045] [2024-11-16 08:18:23,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:23,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:23,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:23,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534513045] [2024-11-16 08:18:23,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534513045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:23,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:23,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:23,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409600092] [2024-11-16 08:18:23,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:23,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:23,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:23,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:23,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:23,898 INFO L87 Difference]: Start difference. First operand 47092 states and 65811 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:24,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:24,333 INFO L93 Difference]: Finished difference Result 80402 states and 112848 transitions. [2024-11-16 08:18:24,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:24,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-16 08:18:24,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:24,373 INFO L225 Difference]: With dead ends: 80402 [2024-11-16 08:18:24,373 INFO L226 Difference]: Without dead ends: 33359 [2024-11-16 08:18:24,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:24,407 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 59 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:24,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 293 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:24,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33359 states. [2024-11-16 08:18:25,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33359 to 33356. [2024-11-16 08:18:25,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33356 states, 33355 states have (on average 1.399100584619997) internal successors, (46667), 33355 states have internal predecessors, (46667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:25,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33356 states to 33356 states and 46667 transitions. [2024-11-16 08:18:25,448 INFO L78 Accepts]: Start accepts. Automaton has 33356 states and 46667 transitions. Word has length 95 [2024-11-16 08:18:25,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:25,448 INFO L471 AbstractCegarLoop]: Abstraction has 33356 states and 46667 transitions. [2024-11-16 08:18:25,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 33356 states and 46667 transitions. [2024-11-16 08:18:25,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:18:25,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:25,450 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:25,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:18:25,450 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:25,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:25,451 INFO L85 PathProgramCache]: Analyzing trace with hash 88205773, now seen corresponding path program 1 times [2024-11-16 08:18:25,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:25,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121850975] [2024-11-16 08:18:25,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:25,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 08:18:25,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121850975] [2024-11-16 08:18:25,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121850975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:25,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:25,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:18:25,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482691705] [2024-11-16 08:18:25,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:25,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:18:25,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:25,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:18:25,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:25,566 INFO L87 Difference]: Start difference. First operand 33356 states and 46667 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:26,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:26,696 INFO L93 Difference]: Finished difference Result 64097 states and 90073 transitions. [2024-11-16 08:18:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:18:26,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-16 08:18:26,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:26,766 INFO L225 Difference]: With dead ends: 64097 [2024-11-16 08:18:26,766 INFO L226 Difference]: Without dead ends: 58974 [2024-11-16 08:18:26,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:18:26,788 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 897 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:26,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 1396 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58974 states. [2024-11-16 08:18:27,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58974 to 38476. [2024-11-16 08:18:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38476 states, 38475 states have (on average 1.3992202729044834) internal successors, (53835), 38475 states have internal predecessors, (53835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:28,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38476 states to 38476 states and 53835 transitions. [2024-11-16 08:18:28,004 INFO L78 Accepts]: Start accepts. Automaton has 38476 states and 53835 transitions. Word has length 95 [2024-11-16 08:18:28,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:28,004 INFO L471 AbstractCegarLoop]: Abstraction has 38476 states and 53835 transitions. [2024-11-16 08:18:28,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:28,005 INFO L276 IsEmpty]: Start isEmpty. Operand 38476 states and 53835 transitions. [2024-11-16 08:18:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 08:18:28,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:28,008 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:28,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:18:28,009 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:28,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:28,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1155762447, now seen corresponding path program 1 times [2024-11-16 08:18:28,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:28,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942831488] [2024-11-16 08:18:28,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:28,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:28,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:28,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942831488] [2024-11-16 08:18:28,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942831488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:28,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:28,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:28,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254284485] [2024-11-16 08:18:28,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:28,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:28,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:28,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:28,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:28,072 INFO L87 Difference]: Start difference. First operand 38476 states and 53835 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:28,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:28,347 INFO L93 Difference]: Finished difference Result 57682 states and 80719 transitions. [2024-11-16 08:18:28,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:28,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-11-16 08:18:28,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:28,367 INFO L225 Difference]: With dead ends: 57682 [2024-11-16 08:18:28,367 INFO L226 Difference]: Without dead ends: 19279 [2024-11-16 08:18:28,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:28,389 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 52 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:28,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 278 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:28,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19279 states. [2024-11-16 08:18:28,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19279 to 19276. [2024-11-16 08:18:28,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19276 states, 19275 states have (on average 1.3859922178988326) internal successors, (26715), 19275 states have internal predecessors, (26715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19276 states to 19276 states and 26715 transitions. [2024-11-16 08:18:28,856 INFO L78 Accepts]: Start accepts. Automaton has 19276 states and 26715 transitions. Word has length 97 [2024-11-16 08:18:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:28,856 INFO L471 AbstractCegarLoop]: Abstraction has 19276 states and 26715 transitions. [2024-11-16 08:18:28,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:28,856 INFO L276 IsEmpty]: Start isEmpty. Operand 19276 states and 26715 transitions. [2024-11-16 08:18:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:18:28,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:28,859 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:28,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:18:28,860 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:28,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash 912957425, now seen corresponding path program 1 times [2024-11-16 08:18:28,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:28,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929944916] [2024-11-16 08:18:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:28,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:28,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:28,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929944916] [2024-11-16 08:18:28,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929944916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:28,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:28,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:28,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451020063] [2024-11-16 08:18:28,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:28,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:28,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:28,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:28,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:28,950 INFO L87 Difference]: Start difference. First operand 19276 states and 26715 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:29,088 INFO L93 Difference]: Finished difference Result 28882 states and 40039 transitions. [2024-11-16 08:18:29,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:29,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2024-11-16 08:18:29,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:29,099 INFO L225 Difference]: With dead ends: 28882 [2024-11-16 08:18:29,099 INFO L226 Difference]: Without dead ends: 9679 [2024-11-16 08:18:29,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,111 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 47 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:29,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 263 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:29,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9679 states. [2024-11-16 08:18:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9679 to 9676. [2024-11-16 08:18:29,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9676 states, 9675 states have (on average 1.372093023255814) internal successors, (13275), 9675 states have internal predecessors, (13275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9676 states to 9676 states and 13275 transitions. [2024-11-16 08:18:29,277 INFO L78 Accepts]: Start accepts. Automaton has 9676 states and 13275 transitions. Word has length 99 [2024-11-16 08:18:29,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:29,277 INFO L471 AbstractCegarLoop]: Abstraction has 9676 states and 13275 transitions. [2024-11-16 08:18:29,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,277 INFO L276 IsEmpty]: Start isEmpty. Operand 9676 states and 13275 transitions. [2024-11-16 08:18:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 08:18:29,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:29,279 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:29,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:18:29,279 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:29,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:29,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1442630488, now seen corresponding path program 1 times [2024-11-16 08:18:29,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:29,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787006215] [2024-11-16 08:18:29,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:29,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:29,380 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:29,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:29,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787006215] [2024-11-16 08:18:29,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787006215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:29,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:29,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:29,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20234623] [2024-11-16 08:18:29,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:29,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:29,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:29,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:29,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,382 INFO L87 Difference]: Start difference. First operand 9676 states and 13275 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:29,531 INFO L93 Difference]: Finished difference Result 14482 states and 19879 transitions. [2024-11-16 08:18:29,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:29,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-16 08:18:29,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:29,537 INFO L225 Difference]: With dead ends: 14482 [2024-11-16 08:18:29,537 INFO L226 Difference]: Without dead ends: 4879 [2024-11-16 08:18:29,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,542 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 44 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:29,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 248 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:29,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2024-11-16 08:18:29,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4876. [2024-11-16 08:18:29,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 4875 states have (on average 1.356923076923077) internal successors, (6615), 4875 states have internal predecessors, (6615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 6615 transitions. [2024-11-16 08:18:29,668 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 6615 transitions. Word has length 101 [2024-11-16 08:18:29,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:29,668 INFO L471 AbstractCegarLoop]: Abstraction has 4876 states and 6615 transitions. [2024-11-16 08:18:29,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,668 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 6615 transitions. [2024-11-16 08:18:29,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 08:18:29,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:29,670 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:29,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:18:29,670 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:29,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:29,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1541070815, now seen corresponding path program 1 times [2024-11-16 08:18:29,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:29,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119147978] [2024-11-16 08:18:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:29,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:29,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:29,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119147978] [2024-11-16 08:18:29,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119147978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:29,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:29,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:29,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696436211] [2024-11-16 08:18:29,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:29,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:29,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:29,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:29,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,768 INFO L87 Difference]: Start difference. First operand 4876 states and 6615 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:29,827 INFO L93 Difference]: Finished difference Result 7282 states and 9889 transitions. [2024-11-16 08:18:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:29,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-16 08:18:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:29,832 INFO L225 Difference]: With dead ends: 7282 [2024-11-16 08:18:29,832 INFO L226 Difference]: Without dead ends: 2479 [2024-11-16 08:18:29,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,835 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 41 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:29,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 233 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:29,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2024-11-16 08:18:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2476. [2024-11-16 08:18:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2475 states have (on average 1.3393939393939394) internal successors, (3315), 2475 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3315 transitions. [2024-11-16 08:18:29,898 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3315 transitions. Word has length 103 [2024-11-16 08:18:29,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:29,899 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 3315 transitions. [2024-11-16 08:18:29,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3315 transitions. [2024-11-16 08:18:29,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-16 08:18:29,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:29,900 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:29,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:18:29,900 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:29,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:29,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1351306630, now seen corresponding path program 1 times [2024-11-16 08:18:29,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:29,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743743642] [2024-11-16 08:18:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:29,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:29,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:29,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743743642] [2024-11-16 08:18:29,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743743642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:29,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:29,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:29,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16973416] [2024-11-16 08:18:29,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:29,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:29,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:29,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:29,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,985 INFO L87 Difference]: Start difference. First operand 2476 states and 3315 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:30,020 INFO L93 Difference]: Finished difference Result 3682 states and 4939 transitions. [2024-11-16 08:18:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:30,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-16 08:18:30,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:30,023 INFO L225 Difference]: With dead ends: 3682 [2024-11-16 08:18:30,024 INFO L226 Difference]: Without dead ends: 1279 [2024-11-16 08:18:30,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:30,026 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 38 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:30,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 218 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:30,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2024-11-16 08:18:30,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1276. [2024-11-16 08:18:30,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 1.3176470588235294) internal successors, (1680), 1275 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1680 transitions. [2024-11-16 08:18:30,060 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1680 transitions. Word has length 105 [2024-11-16 08:18:30,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:30,060 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1680 transitions. [2024-11-16 08:18:30,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1680 transitions. [2024-11-16 08:18:30,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:18:30,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:30,062 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:30,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:18:30,062 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:30,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:30,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1852212301, now seen corresponding path program 1 times [2024-11-16 08:18:30,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:30,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737331349] [2024-11-16 08:18:30,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:30,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:30,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:30,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737331349] [2024-11-16 08:18:30,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737331349] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:18:30,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523945388] [2024-11-16 08:18:30,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:30,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:18:30,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:18:30,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:18:30,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:18:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:30,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 08:18:30,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:18:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:31,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:18:32,775 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:32,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523945388] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:18:32,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:18:32,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-16 08:18:32,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215724916] [2024-11-16 08:18:32,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:18:32,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 08:18:32,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:32,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 08:18:32,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2024-11-16 08:18:32,778 INFO L87 Difference]: Start difference. First operand 1276 states and 1680 transitions. Second operand has 32 states, 32 states have (on average 8.875) internal successors, (284), 32 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:36,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:36,210 INFO L93 Difference]: Finished difference Result 11386 states and 15077 transitions. [2024-11-16 08:18:36,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-16 08:18:36,211 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.875) internal successors, (284), 32 states have internal predecessors, (284), 0 states have call successors, (0), 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 107 [2024-11-16 08:18:36,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:36,221 INFO L225 Difference]: With dead ends: 11386 [2024-11-16 08:18:36,221 INFO L226 Difference]: Without dead ends: 10183 [2024-11-16 08:18:36,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2314 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1378, Invalid=6994, Unknown=0, NotChecked=0, Total=8372 [2024-11-16 08:18:36,225 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 3202 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:36,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3202 Valid, 1936 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:18:36,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10183 states. [2024-11-16 08:18:36,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10183 to 4824. [2024-11-16 08:18:36,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4824 states, 4823 states have (on average 1.3023014721127928) internal successors, (6281), 4823 states have internal predecessors, (6281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:36,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4824 states to 4824 states and 6281 transitions. [2024-11-16 08:18:36,392 INFO L78 Accepts]: Start accepts. Automaton has 4824 states and 6281 transitions. Word has length 107 [2024-11-16 08:18:36,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:36,392 INFO L471 AbstractCegarLoop]: Abstraction has 4824 states and 6281 transitions. [2024-11-16 08:18:36,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.875) internal successors, (284), 32 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:36,392 INFO L276 IsEmpty]: Start isEmpty. Operand 4824 states and 6281 transitions. [2024-11-16 08:18:36,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 08:18:36,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:36,393 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:36,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 08:18:36,594 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,SelfDestructingSolverStorable24 [2024-11-16 08:18:36,594 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:36,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:36,595 INFO L85 PathProgramCache]: Analyzing trace with hash -534816386, now seen corresponding path program 1 times [2024-11-16 08:18:36,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:36,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472188916] [2024-11-16 08:18:36,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:36,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:36,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:36,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:36,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472188916] [2024-11-16 08:18:36,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472188916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:18:36,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621554188] [2024-11-16 08:18:36,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:36,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:18:36,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:18:36,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:18:36,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 08:18:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:36,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 08:18:36,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:18:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:37,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:18:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:38,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621554188] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:18:38,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:18:38,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-16 08:18:38,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653080181] [2024-11-16 08:18:38,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:18:38,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-16 08:18:38,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:38,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-16 08:18:38,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:18:38,044 INFO L87 Difference]: Start difference. First operand 4824 states and 6281 transitions. Second operand has 25 states, 25 states have (on average 11.32) internal successors, (283), 24 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:39,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:39,104 INFO L93 Difference]: Finished difference Result 19643 states and 25693 transitions. [2024-11-16 08:18:39,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-16 08:18:39,105 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.32) internal successors, (283), 24 states have internal predecessors, (283), 0 states have call successors, (0), 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 108 [2024-11-16 08:18:39,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:39,118 INFO L225 Difference]: With dead ends: 19643 [2024-11-16 08:18:39,118 INFO L226 Difference]: Without dead ends: 14892 [2024-11-16 08:18:39,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=462, Invalid=1794, Unknown=0, NotChecked=0, Total=2256 [2024-11-16 08:18:39,123 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 1196 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:39,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1335 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:18:39,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14892 states. [2024-11-16 08:18:39,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14892 to 14824. [2024-11-16 08:18:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14824 states, 14823 states have (on average 1.287526141806652) internal successors, (19085), 14823 states have internal predecessors, (19085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:39,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14824 states to 14824 states and 19085 transitions. [2024-11-16 08:18:39,407 INFO L78 Accepts]: Start accepts. Automaton has 14824 states and 19085 transitions. Word has length 108 [2024-11-16 08:18:39,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:39,407 INFO L471 AbstractCegarLoop]: Abstraction has 14824 states and 19085 transitions. [2024-11-16 08:18:39,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.32) internal successors, (283), 24 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:39,408 INFO L276 IsEmpty]: Start isEmpty. Operand 14824 states and 19085 transitions. [2024-11-16 08:18:39,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 08:18:39,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:39,410 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:39,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 08:18:39,610 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,SelfDestructingSolverStorable25 [2024-11-16 08:18:39,610 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:39,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:39,611 INFO L85 PathProgramCache]: Analyzing trace with hash -573179735, now seen corresponding path program 1 times [2024-11-16 08:18:39,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:39,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150785612] [2024-11-16 08:18:39,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:39,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:39,851 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:39,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:39,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150785612] [2024-11-16 08:18:39,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150785612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:18:39,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407335712] [2024-11-16 08:18:39,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:39,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:18:39,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:18:39,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:18:39,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 08:18:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:39,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-16 08:18:39,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:18:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:40,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:18:41,402 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:41,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407335712] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:18:41,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:18:41,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 30 [2024-11-16 08:18:41,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615444041] [2024-11-16 08:18:41,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:18:41,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 08:18:41,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:41,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 08:18:41,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-11-16 08:18:41,404 INFO L87 Difference]: Start difference. First operand 14824 states and 19085 transitions. Second operand has 30 states, 30 states have (on average 10.333333333333334) internal successors, (310), 30 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:43,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:43,186 INFO L93 Difference]: Finished difference Result 60091 states and 77637 transitions. [2024-11-16 08:18:43,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-16 08:18:43,186 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 10.333333333333334) internal successors, (310), 30 states have internal predecessors, (310), 0 states have call successors, (0), 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 [2024-11-16 08:18:43,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:43,230 INFO L225 Difference]: With dead ends: 60091 [2024-11-16 08:18:43,230 INFO L226 Difference]: Without dead ends: 45340 [2024-11-16 08:18:43,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=574, Invalid=2396, Unknown=0, NotChecked=0, Total=2970 [2024-11-16 08:18:43,247 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 1815 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:43,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 1459 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:18:43,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45340 states. [2024-11-16 08:18:44,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45340 to 45160. [2024-11-16 08:18:44,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45160 states, 45159 states have (on average 1.2756925529794725) internal successors, (57609), 45159 states have internal predecessors, (57609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:44,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45160 states to 45160 states and 57609 transitions. [2024-11-16 08:18:44,519 INFO L78 Accepts]: Start accepts. Automaton has 45160 states and 57609 transitions. Word has length 109 [2024-11-16 08:18:44,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:44,519 INFO L471 AbstractCegarLoop]: Abstraction has 45160 states and 57609 transitions. [2024-11-16 08:18:44,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.333333333333334) internal successors, (310), 30 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:44,519 INFO L276 IsEmpty]: Start isEmpty. Operand 45160 states and 57609 transitions. [2024-11-16 08:18:44,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 08:18:44,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:44,522 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:18:44,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 08:18:44,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:18:44,723 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:44,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:44,723 INFO L85 PathProgramCache]: Analyzing trace with hash 151457571, now seen corresponding path program 1 times [2024-11-16 08:18:44,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:44,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174243519] [2024-11-16 08:18:44,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:44,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat