/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-programs/Problem101_label21.c


--------------------------------------------------------------------------------


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 18:25:19,478 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 18:25:19,569 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 18:25:19,574 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 18:25:19,574 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 18:25:19,602 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 18:25:19,603 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 18:25:19,603 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 18:25:19,604 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 18:25:19,607 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 18:25:19,608 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 18:25:19,608 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 18:25:19,608 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 18:25:19,610 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 18:25:19,610 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 18:25:19,610 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 18:25:19,610 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 18:25:19,611 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 18:25:19,611 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 18:25:19,611 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 18:25:19,611 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 18:25:19,612 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 18:25:19,612 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 18:25:19,612 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 18:25:19,612 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 18:25:19,613 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 18:25:19,613 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 18:25:19,613 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 18:25:19,613 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 18:25:19,613 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 18:25:19,614 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 18:25:19,614 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 18:25:19,615 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 18:25:19,615 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 18:25:19,615 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 18:25:19,615 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 18:25:19,615 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 18:25:19,615 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 18:25:19,615 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 18:25:19,616 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 18:25:19,616 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 18:25:19,617 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 18:25:19,617 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 18:25:19,617 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 18:25:19,617 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 18:25:19,617 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 18:25:19,617 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 18:25:19,845 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 18:25:19,868 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 18:25:19,870 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 18:25:19,871 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 18:25:19,872 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 18:25:19,873 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label21.c
[2023-12-22 18:25:21,136 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 18:25:22,943 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 18:25:22,944 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label21.c
[2023-12-22 18:25:23,057 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bd8789a/208ac8ac0b0a4a229903e1bf169e776f/FLAGe32d1e6ee
[2023-12-22 18:25:23,069 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bd8789a/208ac8ac0b0a4a229903e1bf169e776f
[2023-12-22 18:25:23,071 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 18:25:23,073 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 18:25:23,074 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 18:25:23,074 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 18:25:23,079 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 18:25:23,080 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:25:23" (1/1) ...
[2023-12-22 18:25:23,081 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3d8229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:23, skipping insertion in model container
[2023-12-22 18:25:23,081 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:25:23" (1/1) ...
[2023-12-22 18:25:23,840 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 18:25:31,608 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label21.c[2766627,2766640]
[2023-12-22 18:25:31,686 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 18:25:31,701 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 18:25:35,935 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label21.c[2766627,2766640]
[2023-12-22 18:25:35,947 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 18:25:36,974 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 18:25:36,975 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36 WrapperNode
[2023-12-22 18:25:36,975 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 18:25:36,976 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 18:25:36,976 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 18:25:36,976 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 18:25:36,982 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:37,672 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:40,007 INFO  L138                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83779
[2023-12-22 18:25:40,008 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 18:25:40,009 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 18:25:40,009 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 18:25:40,009 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 18:25:40,021 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:40,022 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:40,412 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:40,851 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].
[2023-12-22 18:25:40,852 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:40,852 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:41,882 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:42,087 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:42,215 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:42,345 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:42,791 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 18:25:42,792 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 18:25:42,792 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 18:25:42,792 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 18:25:42,793 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (1/1) ...
[2023-12-22 18:25:42,797 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 18:25:42,809 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 18:25:42,842 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)
[2023-12-22 18:25:42,864 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
[2023-12-22 18:25:42,872 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 18:25:42,872 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 18:25:42,873 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 18:25:42,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 18:25:43,360 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 18:25:43,362 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 18:26:32,018 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 18:26:32,188 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 18:26:32,188 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 18:26:32,189 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:26:32 BoogieIcfgContainer
[2023-12-22 18:26:32,189 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 18:26:32,193 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 18:26:32,193 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 18:26:32,195 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 18:26:32,196 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:25:23" (1/3) ...
[2023-12-22 18:26:32,197 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9ecbb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:26:32, skipping insertion in model container
[2023-12-22 18:26:32,197 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:25:36" (2/3) ...
[2023-12-22 18:26:32,197 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9ecbb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:26:32, skipping insertion in model container
[2023-12-22 18:26:32,197 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:26:32" (3/3) ...
[2023-12-22 18:26:32,199 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem101_label21.c
[2023-12-22 18:26:32,215 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 18:26:32,215 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 18:26:32,384 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 18:26:32,390 INFO  L357      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, mHoare=true, 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;@4af714b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 18:26:32,390 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 18:26:32,428 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:26:33,147 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10087
[2023-12-22 18:26:33,147 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:26:33,151 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:26:33,152 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:26:33,159 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:26:33,162 INFO  L85        PathProgramCache]: Analyzing trace with hash 1109450281, now seen corresponding path program 1 times
[2023-12-22 18:26:33,266 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:26:33,266 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24409675]
[2023-12-22 18:26:33,268 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:26:33,268 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:26:33,269 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:26:33,271 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 18:26:33,272 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-22 18:26:37,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:26:37,668 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10229 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:26:37,837 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:26:50,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:26:50,520 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:26:50,521 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:26:50,522 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24409675]
[2023-12-22 18:26:50,522 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [24409675] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:26:50,522 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:26:50,523 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:26:50,525 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227959367]
[2023-12-22 18:26:50,526 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:26:50,542 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:26:50,542 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:26:50,590 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:26:50,591 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:26:50,637 INFO  L87              Difference]: Start difference. First operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 3362.0) internal successors, (10086), 2 states have internal predecessors, (10086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:27:38,109 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:27:38,110 INFO  L93              Difference]: Finished difference Result 30581 states and 61010 transitions.
[2023-12-22 18:27:38,112 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:27:38,115 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3362.0) internal successors, (10086), 2 states have internal predecessors, (10086), 0 states have call successors, (0), 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 10086
[2023-12-22 18:27:38,133 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:27:38,239 INFO  L225             Difference]: With dead ends: 30581
[2023-12-22 18:27:38,239 INFO  L226             Difference]: Without dead ends: 20383
[2023-12-22 18:27:38,263 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10085 GetRequests, 10084 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:27:38,267 INFO  L413           NwaCegarLoop]: 4812 mSDtfsCounter, 3110 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 29518 mSolverCounterSat, 11203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3110 SdHoareTripleChecker+Valid, 4863 SdHoareTripleChecker+Invalid, 40721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11203 IncrementalHoareTripleChecker+Valid, 29518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.8s IncrementalHoareTripleChecker+Time
[2023-12-22 18:27:38,268 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3110 Valid, 4863 Invalid, 40721 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11203 Valid, 29518 Invalid, 0 Unknown, 0 Unchecked, 46.8s Time]
[2023-12-22 18:27:38,309 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20383 states.
[2023-12-22 18:27:38,714 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20383 to 20383.
[2023-12-22 18:27:38,757 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20383 states, 20382 states have (on average 1.7563045824747325) internal successors, (35797), 20382 states have internal predecessors, (35797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:27:38,814 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20383 states to 20383 states and 35797 transitions.
[2023-12-22 18:27:38,816 INFO  L78                 Accepts]: Start accepts. Automaton has 20383 states and 35797 transitions. Word has length 10086
[2023-12-22 18:27:38,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:27:38,832 INFO  L495      AbstractCegarLoop]: Abstraction has 20383 states and 35797 transitions.
[2023-12-22 18:27:38,835 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3362.0) internal successors, (10086), 2 states have internal predecessors, (10086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:27:38,836 INFO  L276                IsEmpty]: Start isEmpty. Operand 20383 states and 35797 transitions.
[2023-12-22 18:27:39,523 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10093
[2023-12-22 18:27:39,523 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:27:39,527 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:27:39,544 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-22 18:27:39,731 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:27:39,732 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:27:39,732 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:27:39,735 INFO  L85        PathProgramCache]: Analyzing trace with hash -1882925754, now seen corresponding path program 1 times
[2023-12-22 18:27:39,811 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:27:39,811 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236737467]
[2023-12-22 18:27:39,814 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:27:39,814 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:27:39,814 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:27:39,815 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 18:27:39,816 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-22 18:27:43,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:27:43,423 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10259 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:27:43,559 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:27:43,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:27:43,721 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:27:43,721 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:27:43,725 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236737467]
[2023-12-22 18:27:43,725 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236737467] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:27:43,726 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:27:43,727 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:27:43,727 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768965228]
[2023-12-22 18:27:43,727 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:27:43,738 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:27:43,739 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:27:43,746 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:27:43,746 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:27:43,749 INFO  L87              Difference]: Start difference. First operand 20383 states and 35797 transitions. Second operand  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:28:32,994 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:28:32,995 INFO  L93              Difference]: Finished difference Result 61145 states and 107388 transitions.
[2023-12-22 18:28:32,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:28:32,998 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 0 states have call successors, (0), 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 10092
[2023-12-22 18:28:32,998 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:28:33,088 INFO  L225             Difference]: With dead ends: 61145
[2023-12-22 18:28:33,089 INFO  L226             Difference]: Without dead ends: 40763
[2023-12-22 18:28:33,118 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10091 GetRequests, 10090 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:28:33,120 INFO  L413           NwaCegarLoop]: 7388 mSDtfsCounter, 12062 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 34929 mSolverCounterSat, 7005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12062 SdHoareTripleChecker+Valid, 7438 SdHoareTripleChecker+Invalid, 41934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7005 IncrementalHoareTripleChecker+Valid, 34929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.6s IncrementalHoareTripleChecker+Time
[2023-12-22 18:28:33,120 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12062 Valid, 7438 Invalid, 41934 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7005 Valid, 34929 Invalid, 0 Unknown, 0 Unchecked, 48.6s Time]
[2023-12-22 18:28:33,170 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40763 states.
[2023-12-22 18:28:33,718 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40763 to 40763.
[2023-12-22 18:28:33,767 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40763 states, 40762 states have (on average 1.5711446935871645) internal successors, (64043), 40762 states have internal predecessors, (64043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:28:33,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40763 states to 40763 states and 64043 transitions.
[2023-12-22 18:28:33,827 INFO  L78                 Accepts]: Start accepts. Automaton has 40763 states and 64043 transitions. Word has length 10092
[2023-12-22 18:28:33,829 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:28:33,829 INFO  L495      AbstractCegarLoop]: Abstraction has 40763 states and 64043 transitions.
[2023-12-22 18:28:33,832 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:28:33,832 INFO  L276                IsEmpty]: Start isEmpty. Operand 40763 states and 64043 transitions.
[2023-12-22 18:28:34,401 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10098
[2023-12-22 18:28:34,401 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:28:34,404 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:28:34,427 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-22 18:28:34,620 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:28:34,621 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:28:34,621 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:28:34,624 INFO  L85        PathProgramCache]: Analyzing trace with hash 264770222, now seen corresponding path program 1 times
[2023-12-22 18:28:34,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:28:34,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921064580]
[2023-12-22 18:28:34,689 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:28:34,689 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:28:34,690 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:28:34,691 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 18:28:34,697 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-22 18:28:38,381 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:28:38,477 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10288 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:28:38,574 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:28:38,719 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-12-22 18:28:38,719 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:28:38,719 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:28:38,719 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921064580]
[2023-12-22 18:28:38,719 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921064580] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:28:38,720 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:28:38,721 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:28:38,721 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997752042]
[2023-12-22 18:28:38,721 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:28:38,731 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:28:38,731 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:28:38,739 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:28:38,739 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:28:38,743 INFO  L87              Difference]: Start difference. First operand 40763 states and 64043 transitions. Second operand  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:29:27,030 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:29:27,030 INFO  L93              Difference]: Finished difference Result 122285 states and 192126 transitions.
[2023-12-22 18:29:27,030 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:29:27,033 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 0 states have call successors, (0), 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 10097
[2023-12-22 18:29:27,033 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:29:27,192 INFO  L225             Difference]: With dead ends: 122285
[2023-12-22 18:29:27,192 INFO  L226             Difference]: Without dead ends: 81523
[2023-12-22 18:29:27,230 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10096 GetRequests, 10095 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:29:27,232 INFO  L413           NwaCegarLoop]: 4812 mSDtfsCounter, 13686 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28826 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13686 SdHoareTripleChecker+Valid, 4861 SdHoareTripleChecker+Invalid, 40503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 28826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.3s IncrementalHoareTripleChecker+Time
[2023-12-22 18:29:27,233 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13686 Valid, 4861 Invalid, 40503 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 28826 Invalid, 0 Unknown, 0 Unchecked, 47.3s Time]
[2023-12-22 18:29:27,297 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81523 states.
[2023-12-22 18:29:28,045 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81523 to 81523.
[2023-12-22 18:29:28,129 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81523 states, 81522 states have (on average 1.4376487328573881) internal successors, (117200), 81522 states have internal predecessors, (117200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:29:28,221 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81523 states to 81523 states and 117200 transitions.
[2023-12-22 18:29:28,221 INFO  L78                 Accepts]: Start accepts. Automaton has 81523 states and 117200 transitions. Word has length 10097
[2023-12-22 18:29:28,222 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:29:28,222 INFO  L495      AbstractCegarLoop]: Abstraction has 81523 states and 117200 transitions.
[2023-12-22 18:29:28,225 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:29:28,225 INFO  L276                IsEmpty]: Start isEmpty. Operand 81523 states and 117200 transitions.
[2023-12-22 18:29:29,425 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10121
[2023-12-22 18:29:29,425 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:29:29,428 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:29:29,445 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-22 18:29:29,629 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:29:29,630 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:29:29,630 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:29:29,632 INFO  L85        PathProgramCache]: Analyzing trace with hash -394534310, now seen corresponding path program 1 times
[2023-12-22 18:29:29,699 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:29:29,699 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286514017]
[2023-12-22 18:29:29,701 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:29:29,701 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:29:29,701 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:29:29,702 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 18:29:29,705 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-22 18:29:33,108 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:29:33,200 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10314 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:29:33,363 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:29:33,545 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-12-22 18:29:33,545 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:29:33,546 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:29:33,546 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286514017]
[2023-12-22 18:29:33,546 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286514017] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:29:33,547 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:29:33,549 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:29:33,549 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505356844]
[2023-12-22 18:29:33,549 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:29:33,559 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:29:33,561 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:29:33,568 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:29:33,569 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:29:33,571 INFO  L87              Difference]: Start difference. First operand 81523 states and 117200 transitions. Second operand  has 3 states, 3 states have (on average 3371.6666666666665) internal successors, (10115), 2 states have internal predecessors, (10115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:30:22,897 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:30:22,897 INFO  L93              Difference]: Finished difference Result 244565 states and 351597 transitions.
[2023-12-22 18:30:22,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:30:22,900 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3371.6666666666665) internal successors, (10115), 2 states have internal predecessors, (10115), 0 states have call successors, (0), 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 10120
[2023-12-22 18:30:22,900 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:30:23,423 INFO  L225             Difference]: With dead ends: 244565
[2023-12-22 18:30:23,423 INFO  L226             Difference]: Without dead ends: 163043
[2023-12-22 18:30:23,491 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10119 GetRequests, 10118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:30:23,493 INFO  L413           NwaCegarLoop]: 6687 mSDtfsCounter, 12932 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27605 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12932 SdHoareTripleChecker+Valid, 6736 SdHoareTripleChecker+Invalid, 40635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.9s IncrementalHoareTripleChecker+Time
[2023-12-22 18:30:23,494 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12932 Valid, 6736 Invalid, 40635 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27605 Invalid, 0 Unknown, 0 Unchecked, 47.9s Time]
[2023-12-22 18:30:23,614 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163043 states.
[2023-12-22 18:30:25,160 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163043 to 163043.
[2023-12-22 18:30:25,391 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163043 states, 163042 states have (on average 1.3175010120091755) internal successors, (214808), 163042 states have internal predecessors, (214808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:30:25,723 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 214808 transitions.
[2023-12-22 18:30:25,724 INFO  L78                 Accepts]: Start accepts. Automaton has 163043 states and 214808 transitions. Word has length 10120
[2023-12-22 18:30:25,725 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:30:25,725 INFO  L495      AbstractCegarLoop]: Abstraction has 163043 states and 214808 transitions.
[2023-12-22 18:30:25,728 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3371.6666666666665) internal successors, (10115), 2 states have internal predecessors, (10115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:30:25,728 INFO  L276                IsEmpty]: Start isEmpty. Operand 163043 states and 214808 transitions.
[2023-12-22 18:30:26,971 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10167
[2023-12-22 18:30:26,972 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:30:26,998 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:30:27,040 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-22 18:30:27,217 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:30:27,218 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:30:27,218 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:30:27,221 INFO  L85        PathProgramCache]: Analyzing trace with hash -1377306312, now seen corresponding path program 1 times
[2023-12-22 18:30:27,313 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:30:27,313 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273739465]
[2023-12-22 18:30:27,315 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:30:27,316 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:30:27,316 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:30:27,317 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 18:30:27,340 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-22 18:30:31,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:30:31,801 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10359 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:30:31,884 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:30:32,145 INFO  L134       CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2023-12-22 18:30:32,145 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:30:32,145 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:30:32,146 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273739465]
[2023-12-22 18:30:32,146 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273739465] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:30:32,146 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:30:32,147 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:30:32,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096411208]
[2023-12-22 18:30:32,147 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:30:32,155 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:30:32,155 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:30:32,163 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:30:32,163 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:30:32,166 INFO  L87              Difference]: Start difference. First operand 163043 states and 214808 transitions. Second operand  has 3 states, 3 states have (on average 3385.3333333333335) internal successors, (10156), 2 states have internal predecessors, (10156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:31:23,276 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:31:23,276 INFO  L93              Difference]: Finished difference Result 489125 states and 644421 transitions.
[2023-12-22 18:31:23,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:31:23,279 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3385.3333333333335) internal successors, (10156), 2 states have internal predecessors, (10156), 0 states have call successors, (0), 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 10166
[2023-12-22 18:31:23,279 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:31:23,922 INFO  L225             Difference]: With dead ends: 489125
[2023-12-22 18:31:23,923 INFO  L226             Difference]: Without dead ends: 326083
[2023-12-22 18:31:24,012 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10165 GetRequests, 10164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:31:24,012 INFO  L413           NwaCegarLoop]: 9120 mSDtfsCounter, 10741 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31660 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10741 SdHoareTripleChecker+Valid, 9169 SdHoareTripleChecker+Invalid, 42161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 31660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.7s IncrementalHoareTripleChecker+Time
[2023-12-22 18:31:24,013 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10741 Valid, 9169 Invalid, 42161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 31660 Invalid, 0 Unknown, 0 Unchecked, 48.7s Time]
[2023-12-22 18:31:24,231 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 326083 states.
[2023-12-22 18:31:27,428 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 326083 to 326083.
[2023-12-22 18:31:27,647 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 326083 states, 326082 states have (on average 1.2410865978496206) internal successors, (404696), 326082 states have internal predecessors, (404696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:31:28,643 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 326083 states to 326083 states and 404696 transitions.
[2023-12-22 18:31:28,643 INFO  L78                 Accepts]: Start accepts. Automaton has 326083 states and 404696 transitions. Word has length 10166
[2023-12-22 18:31:28,646 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:31:28,646 INFO  L495      AbstractCegarLoop]: Abstraction has 326083 states and 404696 transitions.
[2023-12-22 18:31:28,648 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3385.3333333333335) internal successors, (10156), 2 states have internal predecessors, (10156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:31:28,649 INFO  L276                IsEmpty]: Start isEmpty. Operand 326083 states and 404696 transitions.
[2023-12-22 18:31:30,207 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10171
[2023-12-22 18:31:30,210 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:31:30,221 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:31:30,244 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-12-22 18:31:30,436 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:31:30,437 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:31:30,437 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:31:30,440 INFO  L85        PathProgramCache]: Analyzing trace with hash 1980260809, now seen corresponding path program 1 times
[2023-12-22 18:31:30,538 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:31:30,538 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822333353]
[2023-12-22 18:31:30,540 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:31:30,548 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:31:30,548 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:31:30,553 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 18:31:30,588 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-12-22 18:31:35,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:31:35,534 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10338 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:31:35,632 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:31:35,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 83 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-22 18:31:35,854 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:31:35,855 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:31:35,855 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822333353]
[2023-12-22 18:31:35,855 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822333353] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:31:35,855 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:31:35,856 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:31:35,856 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423768548]
[2023-12-22 18:31:35,856 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:31:35,863 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:31:35,863 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:31:35,869 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:31:35,869 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:31:35,873 INFO  L87              Difference]: Start difference. First operand 326083 states and 404696 transitions. Second operand  has 3 states, 3 states have (on average 3390.0) internal successors, (10170), 2 states have internal predecessors, (10170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:32:31,428 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:32:31,429 INFO  L93              Difference]: Finished difference Result 978245 states and 1214085 transitions.
[2023-12-22 18:32:31,429 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:32:31,431 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3390.0) internal successors, (10170), 2 states have internal predecessors, (10170), 0 states have call successors, (0), 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 10170
[2023-12-22 18:32:31,431 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:32:32,484 INFO  L225             Difference]: With dead ends: 978245
[2023-12-22 18:32:32,484 INFO  L226             Difference]: Without dead ends: 652163
[2023-12-22 18:32:32,667 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10169 GetRequests, 10168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:32:32,667 INFO  L413           NwaCegarLoop]: 9813 mSDtfsCounter, 10156 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 32831 mSolverCounterSat, 9365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10156 SdHoareTripleChecker+Valid, 9863 SdHoareTripleChecker+Invalid, 42196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9365 IncrementalHoareTripleChecker+Valid, 32831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.7s IncrementalHoareTripleChecker+Time
[2023-12-22 18:32:32,668 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10156 Valid, 9863 Invalid, 42196 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9365 Valid, 32831 Invalid, 0 Unknown, 0 Unchecked, 51.7s Time]
[2023-12-22 18:32:33,375 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 652163 states.
[2023-12-22 18:32:39,803 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 652163 to 652163.
[2023-12-22 18:32:40,600 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 652163 states, 652162 states have (on average 1.148778984362781) internal successors, (749190), 652162 states have internal predecessors, (749190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:32:43,102 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 652163 states to 652163 states and 749190 transitions.
[2023-12-22 18:32:43,102 INFO  L78                 Accepts]: Start accepts. Automaton has 652163 states and 749190 transitions. Word has length 10170
[2023-12-22 18:32:43,103 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 18:32:43,103 INFO  L495      AbstractCegarLoop]: Abstraction has 652163 states and 749190 transitions.
[2023-12-22 18:32:43,105 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3390.0) internal successors, (10170), 2 states have internal predecessors, (10170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:32:43,105 INFO  L276                IsEmpty]: Start isEmpty. Operand 652163 states and 749190 transitions.
[2023-12-22 18:32:45,212 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10212
[2023-12-22 18:32:45,213 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 18:32:45,216 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-22 18:32:45,237 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2023-12-22 18:32:45,428 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:32:45,429 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 18:32:45,429 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 18:32:45,431 INFO  L85        PathProgramCache]: Analyzing trace with hash -1348123452, now seen corresponding path program 1 times
[2023-12-22 18:32:45,517 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 18:32:45,518 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056630098]
[2023-12-22 18:32:45,520 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 18:32:45,520 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-22 18:32:45,520 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 18:32:45,521 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-22 18:32:45,523 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2023-12-22 18:32:50,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 18:32:50,217 INFO  L262         TraceCheckSpWp]: Trace formula consists of 10428 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 18:32:50,287 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 18:32:50,412 INFO  L134       CoverageAnalysis]: Checked inductivity of 191 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2023-12-22 18:32:50,412 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 18:32:50,412 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 18:32:50,412 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056630098]
[2023-12-22 18:32:50,412 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056630098] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 18:32:50,412 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 18:32:50,413 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 18:32:50,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429933210]
[2023-12-22 18:32:50,413 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 18:32:50,418 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 18:32:50,418 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 18:32:50,423 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 18:32:50,423 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:32:50,424 INFO  L87              Difference]: Start difference. First operand 652163 states and 749190 transitions. Second operand  has 3 states, 3 states have (on average 3377.0) internal successors, (10131), 2 states have internal predecessors, (10131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-22 18:33:47,149 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 18:33:47,149 INFO  L93              Difference]: Finished difference Result 1956485 states and 2247567 transitions.
[2023-12-22 18:33:47,150 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 18:33:47,151 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3377.0) internal successors, (10131), 2 states have internal predecessors, (10131), 0 states have call successors, (0), 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 10211
[2023-12-22 18:33:47,151 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 18:33:49,526 INFO  L225             Difference]: With dead ends: 1956485
[2023-12-22 18:33:49,526 INFO  L226             Difference]: Without dead ends: 1304323
[2023-12-22 18:33:50,023 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10210 GetRequests, 10209 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-22 18:33:50,024 INFO  L413           NwaCegarLoop]: 7454 mSDtfsCounter, 11997 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29479 mSolverCounterSat, 11743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11997 SdHoareTripleChecker+Valid, 7503 SdHoareTripleChecker+Invalid, 41222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11743 IncrementalHoareTripleChecker+Valid, 29479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.4s IncrementalHoareTripleChecker+Time
[2023-12-22 18:33:50,024 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11997 Valid, 7503 Invalid, 41222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11743 Valid, 29479 Invalid, 0 Unknown, 0 Unchecked, 50.4s Time]
[2023-12-22 18:33:51,459 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1304323 states.
[2023-12-22 18:34:09,459 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304323 to 1304323.
[2023-12-22 18:34:12,271 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1304323 states, 1304322 states have (on average 1.113560915172787) internal successors, (1452442), 1304322 states have internal predecessors, (1452442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)