/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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 01:45:40,567 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 01:45:40,658 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 01:45:40,661 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 01:45:40,662 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 01:45:40,681 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 01:45:40,681 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 01:45:40,682 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 01:45:40,682 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 01:45:40,684 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 01:45:40,684 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 01:45:40,685 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 01:45:40,685 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 01:45:40,685 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 01:45:40,686 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 01:45:40,686 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 01:45:40,686 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 01:45:40,686 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 01:45:40,687 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 01:45:40,687 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 01:45:40,687 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 01:45:40,688 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 01:45:40,689 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 01:45:40,689 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 01:45:40,689 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 01:45:40,689 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 01:45:40,689 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 01:45:40,690 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 01:45:40,690 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 01:45:40,690 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 01:45:40,690 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 01:45:40,691 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 01:45:40,691 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 01:45:40,691 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 01:45:40,691 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 01:45:40,692 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 01:45:40,692 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 01:45:40,692 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 01:45:40,692 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 01:45:40,692 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 01:45:40,693 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 01:45:40,694 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 01:45:40,694 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 01:45:40,694 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 01:45:40,694 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 01:45:40,694 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 01:45:40,695 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 01:45:40,892 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 01:45:40,913 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 01:45:40,916 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 01:45:40,917 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 01:45:40,917 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 01:45:40,919 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i
[2023-12-23 01:45:42,059 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 01:45:42,275 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 01:45:42,275 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i
[2023-12-23 01:45:42,289 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ed5878ba/9fc5ab285df54c2994f91d28ae8769b8/FLAG29667151b
[2023-12-23 01:45:42,303 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ed5878ba/9fc5ab285df54c2994f91d28ae8769b8
[2023-12-23 01:45:42,305 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 01:45:42,306 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 01:45:42,310 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 01:45:42,310 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 01:45:42,314 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 01:45:42,314 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,315 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524b64af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42, skipping insertion in model container
[2023-12-23 01:45:42,315 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,348 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 01:45:42,473 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i[915,928]
[2023-12-23 01:45:42,526 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 01:45:42,541 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 01:45:42,551 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-81.i[915,928]
[2023-12-23 01:45:42,583 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 01:45:42,613 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 01:45:42,615 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42 WrapperNode
[2023-12-23 01:45:42,618 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 01:45:42,619 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 01:45:42,620 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 01:45:42,620 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 01:45:42,626 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,644 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,672 INFO  L138                Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 189
[2023-12-23 01:45:42,672 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 01:45:42,673 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 01:45:42,673 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 01:45:42,673 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 01:45:42,683 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,683 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,687 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,711 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].
[2023-12-23 01:45:42,711 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,712 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,720 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,722 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,724 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,726 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,729 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 01:45:42,730 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 01:45:42,730 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 01:45:42,730 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 01:45:42,730 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (1/1) ...
[2023-12-23 01:45:42,736 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 01:45:42,756 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 01:45:42,769 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)
[2023-12-23 01:45:42,790 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
[2023-12-23 01:45:42,802 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 01:45:42,802 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 01:45:42,802 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 01:45:42,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 01:45:42,804 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 01:45:42,804 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 01:45:42,912 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 01:45:42,913 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 01:45:43,322 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 01:45:43,391 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 01:45:43,391 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 01:45:43,392 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:45:43 BoogieIcfgContainer
[2023-12-23 01:45:43,392 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 01:45:43,394 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 01:45:43,394 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 01:45:43,396 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 01:45:43,397 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:45:42" (1/3) ...
[2023-12-23 01:45:43,397 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79474a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:45:43, skipping insertion in model container
[2023-12-23 01:45:43,397 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:45:42" (2/3) ...
[2023-12-23 01:45:43,398 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79474a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:45:43, skipping insertion in model container
[2023-12-23 01:45:43,398 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:45:43" (3/3) ...
[2023-12-23 01:45:43,399 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-81.i
[2023-12-23 01:45:43,418 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 01:45:43,418 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 01:45:43,467 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 01:45:43,472 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;@10f1594, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 01:45:43,472 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 01:45:43,477 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 75 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2023-12-23 01:45:43,500 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 198
[2023-12-23 01:45:43,501 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 01:45:43,501 INFO  L195           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 01:45:43,502 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 01:45:43,510 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 01:45:43,510 INFO  L85        PathProgramCache]: Analyzing trace with hash 780159169, now seen corresponding path program 1 times
[2023-12-23 01:45:43,522 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 01:45:43,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477468283]
[2023-12-23 01:45:43,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:45:43,523 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
[2023-12-23 01:45:43,524 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 01:45:43,525 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)
[2023-12-23 01:45:43,528 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
[2023-12-23 01:45:43,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:45:43,812 INFO  L262         TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 01:45:43,843 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 01:45:43,892 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 1024 proven. 0 refuted. 0 times theorem prover too weak. 1088 trivial. 0 not checked.
[2023-12-23 01:45:43,892 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 01:45:43,893 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 01:45:43,893 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477468283]
[2023-12-23 01:45:43,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [477468283] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 01:45:43,894 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 01:45:43,894 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 01:45:43,895 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748929043]
[2023-12-23 01:45:43,897 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 01:45:43,906 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 01:45:43,906 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 01:45:43,931 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 01:45:43,932 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 01:45:43,934 INFO  L87              Difference]: Start difference. First operand  has 75 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33)
[2023-12-23 01:45:44,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 01:45:44,017 INFO  L93              Difference]: Finished difference Result 147 states and 269 transitions.
[2023-12-23 01:45:44,022 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 01:45:44,023 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 197
[2023-12-23 01:45:44,024 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 01:45:44,030 INFO  L225             Difference]: With dead ends: 147
[2023-12-23 01:45:44,030 INFO  L226             Difference]: Without dead ends: 73
[2023-12-23 01:45:44,034 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 01:45:44,038 INFO  L413           NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 01:45:44,040 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 01:45:44,053 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2023-12-23 01:45:44,083 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73.
[2023-12-23 01:45:44,084 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 73 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2023-12-23 01:45:44,091 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 114 transitions.
[2023-12-23 01:45:44,092 INFO  L78                 Accepts]: Start accepts. Automaton has 73 states and 114 transitions. Word has length 197
[2023-12-23 01:45:44,093 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 01:45:44,093 INFO  L495      AbstractCegarLoop]: Abstraction has 73 states and 114 transitions.
[2023-12-23 01:45:44,093 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33)
[2023-12-23 01:45:44,093 INFO  L276                IsEmpty]: Start isEmpty. Operand 73 states and 114 transitions.
[2023-12-23 01:45:44,099 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 198
[2023-12-23 01:45:44,099 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 01:45:44,099 INFO  L195           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 01:45:44,108 INFO  L552       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)] Ended with exit code 0
[2023-12-23 01:45:44,300 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
[2023-12-23 01:45:44,300 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 01:45:44,301 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 01:45:44,301 INFO  L85        PathProgramCache]: Analyzing trace with hash -2077113149, now seen corresponding path program 1 times
[2023-12-23 01:45:44,302 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 01:45:44,303 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197515108]
[2023-12-23 01:45:44,303 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:45:44,303 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
[2023-12-23 01:45:44,303 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 01:45:44,304 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)
[2023-12-23 01:45:44,306 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
[2023-12-23 01:45:44,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:45:44,505 INFO  L262         TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-23 01:45:44,512 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 01:45:45,411 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 32 proven. 96 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked.
[2023-12-23 01:45:45,411 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 01:45:45,758 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked.
[2023-12-23 01:45:45,758 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 01:45:45,758 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197515108]
[2023-12-23 01:45:45,759 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [197515108] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 01:45:45,759 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 01:45:45,759 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14
[2023-12-23 01:45:45,759 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075627196]
[2023-12-23 01:45:45,759 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 01:45:45,761 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-23 01:45:45,761 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 01:45:45,762 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-23 01:45:45,763 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182
[2023-12-23 01:45:45,763 INFO  L87              Difference]: Start difference. First operand 73 states and 114 transitions. Second operand  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (66), 3 states have call predecessors, (66), 4 states have return successors, (66), 2 states have call predecessors, (66), 4 states have call successors, (66)
[2023-12-23 01:45:47,390 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 01:45:47,391 INFO  L93              Difference]: Finished difference Result 302 states and 461 transitions.
[2023-12-23 01:45:47,395 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-23 01:45:47,396 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (66), 3 states have call predecessors, (66), 4 states have return successors, (66), 2 states have call predecessors, (66), 4 states have call successors, (66) Word has length 197
[2023-12-23 01:45:47,397 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 01:45:47,400 INFO  L225             Difference]: With dead ends: 302
[2023-12-23 01:45:47,400 INFO  L226             Difference]: Without dead ends: 230
[2023-12-23 01:45:47,401 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=241, Invalid=629, Unknown=0, NotChecked=0, Total=870
[2023-12-23 01:45:47,402 INFO  L413           NwaCegarLoop]: 155 mSDtfsCounter, 301 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2023-12-23 01:45:47,403 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 545 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2023-12-23 01:45:47,404 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 230 states.
[2023-12-23 01:45:47,433 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 77.
[2023-12-23 01:45:47,434 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 77 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 41 states have internal predecessors, (50), 33 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33)
[2023-12-23 01:45:47,435 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 116 transitions.
[2023-12-23 01:45:47,435 INFO  L78                 Accepts]: Start accepts. Automaton has 77 states and 116 transitions. Word has length 197
[2023-12-23 01:45:47,436 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 01:45:47,436 INFO  L495      AbstractCegarLoop]: Abstraction has 77 states and 116 transitions.
[2023-12-23 01:45:47,436 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (66), 3 states have call predecessors, (66), 4 states have return successors, (66), 2 states have call predecessors, (66), 4 states have call successors, (66)
[2023-12-23 01:45:47,437 INFO  L276                IsEmpty]: Start isEmpty. Operand 77 states and 116 transitions.
[2023-12-23 01:45:47,439 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 198
[2023-12-23 01:45:47,439 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 01:45:47,439 INFO  L195           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 01:45:47,457 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
[2023-12-23 01:45:47,647 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
[2023-12-23 01:45:47,647 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 01:45:47,647 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 01:45:47,648 INFO  L85        PathProgramCache]: Analyzing trace with hash 1824827137, now seen corresponding path program 1 times
[2023-12-23 01:45:47,648 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 01:45:47,649 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610032565]
[2023-12-23 01:45:47,649 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:45:47,649 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
[2023-12-23 01:45:47,649 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 01:45:47,650 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)
[2023-12-23 01:45:47,656 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
[2023-12-23 01:45:47,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:45:47,837 INFO  L262         TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-23 01:45:47,843 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 01:45:48,941 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 32 proven. 96 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked.
[2023-12-23 01:45:48,942 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 01:45:49,270 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 01:45:49,270 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610032565]
[2023-12-23 01:45:49,270 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610032565] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 01:45:49,270 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [450078879]
[2023-12-23 01:45:49,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:45:49,271 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 01:45:49,271 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 01:45:49,306 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 01:45:49,327 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-23 01:45:49,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:45:49,706 INFO  L262         TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-23 01:45:49,711 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 01:45:50,366 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2023-12-23 01:45:50,366 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 01:45:50,366 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [450078879] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 01:45:50,366 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-23 01:45:50,367 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11
[2023-12-23 01:45:50,367 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728242851]
[2023-12-23 01:45:50,367 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 01:45:50,367 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-23 01:45:50,368 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 01:45:50,368 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-23 01:45:50,369 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272
[2023-12-23 01:45:50,369 INFO  L87              Difference]: Start difference. First operand 77 states and 116 transitions. Second operand  has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2023-12-23 01:45:51,244 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 01:45:51,245 INFO  L93              Difference]: Finished difference Result 230 states and 347 transitions.
[2023-12-23 01:45:51,249 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-23 01:45:51,250 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 197
[2023-12-23 01:45:51,251 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 01:45:51,252 INFO  L225             Difference]: With dead ends: 230
[2023-12-23 01:45:51,252 INFO  L226             Difference]: Without dead ends: 154
[2023-12-23 01:45:51,253 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420
[2023-12-23 01:45:51,254 INFO  L413           NwaCegarLoop]: 104 mSDtfsCounter, 80 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-23 01:45:51,255 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 390 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-23 01:45:51,255 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2023-12-23 01:45:51,296 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 143.
[2023-12-23 01:45:51,297 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 143 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 72 states have internal predecessors, (84), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2023-12-23 01:45:51,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 216 transitions.
[2023-12-23 01:45:51,300 INFO  L78                 Accepts]: Start accepts. Automaton has 143 states and 216 transitions. Word has length 197
[2023-12-23 01:45:51,302 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 01:45:51,303 INFO  L495      AbstractCegarLoop]: Abstraction has 143 states and 216 transitions.
[2023-12-23 01:45:51,303 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2023-12-23 01:45:51,303 INFO  L276                IsEmpty]: Start isEmpty. Operand 143 states and 216 transitions.
[2023-12-23 01:45:51,305 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 198
[2023-12-23 01:45:51,306 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 01:45:51,306 INFO  L195           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 01:45:51,316 INFO  L552       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)] Ended with exit code 0
[2023-12-23 01:45:51,517 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2023-12-23 01:45:51,713 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 01:45:51,713 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 01:45:51,714 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 01:45:51,714 INFO  L85        PathProgramCache]: Analyzing trace with hash -1660793533, now seen corresponding path program 1 times
[2023-12-23 01:45:51,714 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 01:45:51,715 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97300025]
[2023-12-23 01:45:51,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:45:51,715 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
[2023-12-23 01:45:51,715 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 01:45:51,716 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)
[2023-12-23 01:45:51,718 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
[2023-12-23 01:45:51,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:45:51,886 INFO  L262         TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 01:45:51,890 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 01:45:52,094 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 816 proven. 72 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked.
[2023-12-23 01:45:52,094 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 01:45:52,170 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 01:45:52,170 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97300025]
[2023-12-23 01:45:52,170 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [97300025] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 01:45:52,171 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1423804049]
[2023-12-23 01:45:52,171 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:45:52,171 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 01:45:52,171 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 01:45:52,172 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 01:45:52,180 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process
[2023-12-23 01:45:52,637 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:45:52,654 INFO  L262         TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 01:45:52,659 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 01:45:52,849 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 816 proven. 72 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked.
[2023-12-23 01:45:52,849 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 01:45:52,881 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1423804049] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 01:45:52,881 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 01:45:52,882 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2023-12-23 01:45:52,882 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148180366]
[2023-12-23 01:45:52,882 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 01:45:52,882 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-23 01:45:52,882 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 01:45:52,883 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-23 01:45:52,883 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2023-12-23 01:45:52,883 INFO  L87              Difference]: Start difference. First operand 143 states and 216 transitions. Second operand  has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33)
[2023-12-23 01:45:53,602 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 01:45:53,602 INFO  L93              Difference]: Finished difference Result 234 states and 346 transitions.
[2023-12-23 01:45:53,603 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-23 01:45:53,603 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 197
[2023-12-23 01:45:53,603 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 01:45:53,605 INFO  L225             Difference]: With dead ends: 234
[2023-12-23 01:45:53,605 INFO  L226             Difference]: Without dead ends: 158
[2023-12-23 01:45:53,606 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306
[2023-12-23 01:45:53,606 INFO  L413           NwaCegarLoop]: 137 mSDtfsCounter, 81 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-23 01:45:53,607 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 339 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-23 01:45:53,607 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 158 states.
[2023-12-23 01:45:53,637 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 151.
[2023-12-23 01:45:53,638 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 151 states, 78 states have (on average 1.141025641025641) internal successors, (89), 78 states have internal predecessors, (89), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2023-12-23 01:45:53,639 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 221 transitions.
[2023-12-23 01:45:53,639 INFO  L78                 Accepts]: Start accepts. Automaton has 151 states and 221 transitions. Word has length 197
[2023-12-23 01:45:53,639 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 01:45:53,640 INFO  L495      AbstractCegarLoop]: Abstraction has 151 states and 221 transitions.
[2023-12-23 01:45:53,640 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33)
[2023-12-23 01:45:53,640 INFO  L276                IsEmpty]: Start isEmpty. Operand 151 states and 221 transitions.
[2023-12-23 01:45:53,642 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 199
[2023-12-23 01:45:53,642 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 01:45:53,642 INFO  L195           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 01:45:53,651 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0
[2023-12-23 01:45:53,857 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
[2023-12-23 01:45:54,051 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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
[2023-12-23 01:45:54,051 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 01:45:54,052 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 01:45:54,052 INFO  L85        PathProgramCache]: Analyzing trace with hash 53905829, now seen corresponding path program 1 times
[2023-12-23 01:45:54,053 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 01:45:54,053 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765603839]
[2023-12-23 01:45:54,053 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:45:54,053 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
[2023-12-23 01:45:54,053 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 01:45:54,054 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)
[2023-12-23 01:45:54,058 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
[2023-12-23 01:45:54,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:45:54,218 INFO  L262         TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 01:45:54,222 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 01:45:54,451 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 582 proven. 81 refuted. 0 times theorem prover too weak. 1449 trivial. 0 not checked.
[2023-12-23 01:45:54,451 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 01:45:54,564 INFO  L134       CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked.
[2023-12-23 01:45:54,565 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 01:45:54,565 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765603839]
[2023-12-23 01:45:54,565 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [765603839] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-23 01:45:54,565 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-23 01:45:54,565 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9
[2023-12-23 01:45:54,565 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702812784]
[2023-12-23 01:45:54,566 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 01:45:54,566 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 01:45:54,566 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 01:45:54,567 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 01:45:54,567 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2023-12-23 01:45:54,567 INFO  L87              Difference]: Start difference. First operand 151 states and 221 transitions. Second operand  has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2023-12-23 01:45:54,747 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 01:45:54,747 INFO  L93              Difference]: Finished difference Result 262 states and 375 transitions.
[2023-12-23 01:45:54,748 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 01:45:54,748 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 198
[2023-12-23 01:45:54,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 01:45:54,750 INFO  L225             Difference]: With dead ends: 262
[2023-12-23 01:45:54,750 INFO  L226             Difference]: Without dead ends: 182
[2023-12-23 01:45:54,751 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2023-12-23 01:45:54,751 INFO  L413           NwaCegarLoop]: 116 mSDtfsCounter, 49 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 01:45:54,756 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 214 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 01:45:54,756 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 182 states.
[2023-12-23 01:45:54,784 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179.
[2023-12-23 01:45:54,785 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 179 states, 100 states have (on average 1.14) internal successors, (114), 101 states have internal predecessors, (114), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 01:45:54,786 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 254 transitions.
[2023-12-23 01:45:54,786 INFO  L78                 Accepts]: Start accepts. Automaton has 179 states and 254 transitions. Word has length 198
[2023-12-23 01:45:54,786 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 01:45:54,786 INFO  L495      AbstractCegarLoop]: Abstraction has 179 states and 254 transitions.
[2023-12-23 01:45:54,787 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33)
[2023-12-23 01:45:54,787 INFO  L276                IsEmpty]: Start isEmpty. Operand 179 states and 254 transitions.
[2023-12-23 01:45:54,788 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 199
[2023-12-23 01:45:54,789 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 01:45:54,789 INFO  L195           NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 01:45:54,800 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 (8)] Forceful destruction successful, exit code 0
[2023-12-23 01:45:54,996 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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
[2023-12-23 01:45:54,996 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 01:45:54,997 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 01:45:54,997 INFO  L85        PathProgramCache]: Analyzing trace with hash 53965411, now seen corresponding path program 1 times
[2023-12-23 01:45:54,997 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 01:45:54,998 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973211959]
[2023-12-23 01:45:54,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 01:45:54,998 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
[2023-12-23 01:45:54,998 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 01:45:54,999 INFO  L229       MonitoredProcess]: Starting monitored process 9 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)
[2023-12-23 01:45:55,013 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 (9)] Waiting until timeout for monitored process
[2023-12-23 01:45:55,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 01:45:55,153 INFO  L262         TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 20 conjunts are in the unsatisfiable core
[2023-12-23 01:45:55,158 INFO  L285         TraceCheckSpWp]: Computing forward predicates...