/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_fillercodestructure_filler-ps-ci_file-81.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 14:41:55,598 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 14:41:55,673 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 14:41:55,677 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 14:41:55,678 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 14:41:55,701 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 14:41:55,701 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 14:41:55,702 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 14:41:55,702 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 14:41:55,705 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 14:41:55,706 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 14:41:55,706 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 14:41:55,707 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 14:41:55,708 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 14:41:55,708 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 14:41:55,708 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 14:41:55,708 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 14:41:55,709 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 14:41:55,709 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 14:41:55,709 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 14:41:55,709 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 14:41:55,709 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 14:41:55,710 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 14:41:55,710 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 14:41:55,710 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 14:41:55,710 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 14:41:55,710 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 14:41:55,710 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 14:41:55,710 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 14:41:55,711 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 14:41:55,711 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 14:41:55,712 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 14:41:55,712 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 14:41:55,712 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 14:41:55,712 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:41:55,712 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 14:41:55,712 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 14:41:55,712 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 14:41:55,713 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 14:41:55,713 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 14:41:55,713 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 14:41:55,713 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 14:41:55,713 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 14:41:55,713 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 14:41:55,714 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 14:41:55,714 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 14:41:55,714 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 14:41:55,900 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 14:41:55,918 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 14:41:55,920 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 14:41:55,921 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 14:41:55,921 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 14:41:55,922 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-81.i
[2023-12-23 14:41:57,073 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 14:41:57,254 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 14:41:57,254 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-81.i
[2023-12-23 14:41:57,262 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5989a519c/ec8f8bf94f9d4cbebccd90892dfbbee2/FLAG847948701
[2023-12-23 14:41:57,277 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5989a519c/ec8f8bf94f9d4cbebccd90892dfbbee2
[2023-12-23 14:41:57,278 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 14:41:57,279 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 14:41:57,281 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 14:41:57,281 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 14:41:57,285 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 14:41:57,285 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,286 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f30a19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57, skipping insertion in model container
[2023-12-23 14:41:57,286 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,316 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 14:41:57,415 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_fillercodestructure_filler-ps-ci_file-81.i[919,932]
[2023-12-23 14:41:57,465 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:41:57,484 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 14:41:57,491 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_fillercodestructure_filler-ps-ci_file-81.i[919,932]
[2023-12-23 14:41:57,526 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:41:57,544 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 14:41:57,544 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57 WrapperNode
[2023-12-23 14:41:57,544 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 14:41:57,546 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 14:41:57,546 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 14:41:57,546 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 14:41:57,550 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,575 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,596 INFO  L138                Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 202
[2023-12-23 14:41:57,596 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 14:41:57,597 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 14:41:57,597 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 14:41:57,597 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 14:41:57,608 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,609 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,612 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,621 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 14:41:57,621 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,621 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,627 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,629 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,631 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,632 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,635 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 14:41:57,635 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 14:41:57,636 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 14:41:57,636 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 14:41:57,636 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (1/1) ...
[2023-12-23 14:41:57,639 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:41:57,648 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 14:41:57,686 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 14:41:57,703 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 14:41:57,707 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 14:41:57,707 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 14:41:57,707 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 14:41:57,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 14:41:57,707 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 14:41:57,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 14:41:57,764 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 14:41:57,765 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 14:41:58,583 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 14:41:58,621 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 14:41:58,622 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 14:41:58,622 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:41:58 BoogieIcfgContainer
[2023-12-23 14:41:58,622 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 14:41:58,623 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 14:41:58,624 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 14:41:58,626 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 14:41:58,626 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:41:57" (1/3) ...
[2023-12-23 14:41:58,626 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cb74fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:41:58, skipping insertion in model container
[2023-12-23 14:41:58,626 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:41:57" (2/3) ...
[2023-12-23 14:41:58,626 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cb74fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:41:58, skipping insertion in model container
[2023-12-23 14:41:58,626 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:41:58" (3/3) ...
[2023-12-23 14:41:58,627 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-81.i
[2023-12-23 14:41:58,638 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 14:41:58,638 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 14:41:58,677 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 14:41:58,683 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;@5022fd39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 14:41:58,683 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 14:41:58,687 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 84 states, 50 states have (on average 1.48) internal successors, (74), 51 states have internal predecessors, (74), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31)
[2023-12-23 14:41:58,698 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 194
[2023-12-23 14:41:58,698 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:41:58,698 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:58,699 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:41:58,702 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:41:58,702 INFO  L85        PathProgramCache]: Analyzing trace with hash -1062379435, now seen corresponding path program 1 times
[2023-12-23 14:41:58,710 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:41:58,710 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429913548]
[2023-12-23 14:41:58,711 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:41:58,711 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 14:41:58,711 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:41:58,713 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 14:41:58,716 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 14:41:58,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:41:59,011 INFO  L262         TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 14:41:59,018 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:41:59,055 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 924 proven. 0 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked.
[2023-12-23 14:41:59,055 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:41:59,056 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:41:59,056 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429913548]
[2023-12-23 14:41:59,056 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [429913548] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:41:59,056 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:41:59,057 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 14:41:59,058 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565365610]
[2023-12-23 14:41:59,058 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:41:59,061 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 14:41:59,061 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:41:59,076 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 14:41:59,077 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 14:41:59,078 INFO  L87              Difference]: Start difference. First operand  has 84 states, 50 states have (on average 1.48) internal successors, (74), 51 states have internal predecessors, (74), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2023-12-23 14:41:59,118 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:41:59,119 INFO  L93              Difference]: Finished difference Result 165 states and 301 transitions.
[2023-12-23 14:41:59,123 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 14:41:59,124 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 193
[2023-12-23 14:41:59,124 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:41:59,129 INFO  L225             Difference]: With dead ends: 165
[2023-12-23 14:41:59,129 INFO  L226             Difference]: Without dead ends: 82
[2023-12-23 14:41:59,131 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 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 14:41:59,133 INFO  L413           NwaCegarLoop]: 128 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, 128 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 14:41:59,134 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 14:41:59,143 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2023-12-23 14:41:59,158 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82.
[2023-12-23 14:41:59,159 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 49 states have internal predecessors, (69), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31)
[2023-12-23 14:41:59,161 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 131 transitions.
[2023-12-23 14:41:59,162 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 131 transitions. Word has length 193
[2023-12-23 14:41:59,162 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:41:59,162 INFO  L495      AbstractCegarLoop]: Abstraction has 82 states and 131 transitions.
[2023-12-23 14:41:59,162 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2023-12-23 14:41:59,162 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 131 transitions.
[2023-12-23 14:41:59,164 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 194
[2023-12-23 14:41:59,164 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:41:59,165 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:41:59,191 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 14:41:59,372 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 14:41:59,372 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:41:59,373 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:41:59,373 INFO  L85        PathProgramCache]: Analyzing trace with hash 1701904459, now seen corresponding path program 1 times
[2023-12-23 14:41:59,374 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:41:59,374 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109778843]
[2023-12-23 14:41:59,374 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:41:59,374 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 14:41:59,374 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:41:59,375 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 14:41:59,376 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 14:41:59,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:41:59,586 INFO  L262         TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 14:41:59,594 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:41:59,942 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2023-12-23 14:41:59,942 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:41:59,942 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:41:59,942 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109778843]
[2023-12-23 14:41:59,942 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109778843] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:41:59,942 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:41:59,943 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 14:41:59,943 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42161299]
[2023-12-23 14:41:59,943 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:41:59,944 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 14:41:59,944 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:41:59,945 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 14:41:59,945 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 14:41:59,945 INFO  L87              Difference]: Start difference. First operand 82 states and 131 transitions. Second operand  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-23 14:42:00,022 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:42:00,023 INFO  L93              Difference]: Finished difference Result 237 states and 382 transitions.
[2023-12-23 14:42:00,023 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 14:42:00,023 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 193
[2023-12-23 14:42:00,026 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:42:00,030 INFO  L225             Difference]: With dead ends: 237
[2023-12-23 14:42:00,030 INFO  L226             Difference]: Without dead ends: 156
[2023-12-23 14:42:00,032 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 14:42:00,034 INFO  L413           NwaCegarLoop]: 125 mSDtfsCounter, 32 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 14:42:00,034 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 246 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 14:42:00,036 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156 states.
[2023-12-23 14:42:00,064 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 141.
[2023-12-23 14:42:00,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 141 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 76 states have internal predecessors, (100), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62)
[2023-12-23 14:42:00,068 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 224 transitions.
[2023-12-23 14:42:00,068 INFO  L78                 Accepts]: Start accepts. Automaton has 141 states and 224 transitions. Word has length 193
[2023-12-23 14:42:00,069 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:42:00,069 INFO  L495      AbstractCegarLoop]: Abstraction has 141 states and 224 transitions.
[2023-12-23 14:42:00,069 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-23 14:42:00,070 INFO  L276                IsEmpty]: Start isEmpty. Operand 141 states and 224 transitions.
[2023-12-23 14:42:00,071 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 195
[2023-12-23 14:42:00,071 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:42:00,072 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:00,083 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 14:42:00,280 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 14:42:00,280 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:42:00,281 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:42:00,281 INFO  L85        PathProgramCache]: Analyzing trace with hash -722859508, now seen corresponding path program 1 times
[2023-12-23 14:42:00,281 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:42:00,282 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186057053]
[2023-12-23 14:42:00,282 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:42:00,282 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 14:42:00,282 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:42:00,292 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 14:42:00,293 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 14:42:00,525 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:42:00,537 INFO  L262         TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-23 14:42:00,542 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:42:01,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 30 proven. 90 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked.
[2023-12-23 14:42:01,143 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 14:42:01,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked.
[2023-12-23 14:42:01,408 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:42:01,408 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186057053]
[2023-12-23 14:42:01,408 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [186057053] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 14:42:01,408 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 14:42:01,408 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14
[2023-12-23 14:42:01,408 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023186235]
[2023-12-23 14:42:01,408 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 14:42:01,409 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-23 14:42:01,409 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:42:01,410 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-23 14:42:01,410 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182
[2023-12-23 14:42:01,410 INFO  L87              Difference]: Start difference. First operand 141 states and 224 transitions. Second operand  has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 4 states have call successors, (62), 3 states have call predecessors, (62), 4 states have return successors, (62), 2 states have call predecessors, (62), 4 states have call successors, (62)
[2023-12-23 14:42:03,109 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:42:03,109 INFO  L93              Difference]: Finished difference Result 338 states and 528 transitions.
[2023-12-23 14:42:03,109 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-23 14:42:03,110 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 4 states have call successors, (62), 3 states have call predecessors, (62), 4 states have return successors, (62), 2 states have call predecessors, (62), 4 states have call successors, (62) Word has length 194
[2023-12-23 14:42:03,111 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:42:03,112 INFO  L225             Difference]: With dead ends: 338
[2023-12-23 14:42:03,113 INFO  L226             Difference]: Without dead ends: 257
[2023-12-23 14:42:03,114 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=241, Invalid=629, Unknown=0, NotChecked=0, Total=870
[2023-12-23 14:42:03,115 INFO  L413           NwaCegarLoop]: 179 mSDtfsCounter, 358 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2023-12-23 14:42:03,115 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 697 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2023-12-23 14:42:03,116 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 257 states.
[2023-12-23 14:42:03,169 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 149.
[2023-12-23 14:42:03,169 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 149 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 82 states have internal predecessors, (105), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62)
[2023-12-23 14:42:03,171 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 229 transitions.
[2023-12-23 14:42:03,171 INFO  L78                 Accepts]: Start accepts. Automaton has 149 states and 229 transitions. Word has length 194
[2023-12-23 14:42:03,173 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:42:03,173 INFO  L495      AbstractCegarLoop]: Abstraction has 149 states and 229 transitions.
[2023-12-23 14:42:03,174 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 4 states have call successors, (62), 3 states have call predecessors, (62), 4 states have return successors, (62), 2 states have call predecessors, (62), 4 states have call successors, (62)
[2023-12-23 14:42:03,174 INFO  L276                IsEmpty]: Start isEmpty. Operand 149 states and 229 transitions.
[2023-12-23 14:42:03,175 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 195
[2023-12-23 14:42:03,175 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:42:03,176 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:03,185 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
[2023-12-23 14:42:03,385 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
[2023-12-23 14:42:03,385 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:42:03,386 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:42:03,386 INFO  L85        PathProgramCache]: Analyzing trace with hash -1115886518, now seen corresponding path program 1 times
[2023-12-23 14:42:03,386 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:42:03,386 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021185624]
[2023-12-23 14:42:03,386 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:42:03,386 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 14:42:03,387 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:42:03,387 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)
[2023-12-23 14:42:03,404 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
[2023-12-23 14:42:03,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:42:03,634 INFO  L262         TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 14:42:03,637 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:42:03,821 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 750 proven. 66 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked.
[2023-12-23 14:42:03,821 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 14:42:03,910 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:42:03,910 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021185624]
[2023-12-23 14:42:03,910 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021185624] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 14:42:03,910 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [185957540]
[2023-12-23 14:42:03,911 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:42:03,911 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 14:42:03,911 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 14:42:03,953 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 14:42:03,975 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2023-12-23 14:42:04,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:42:04,514 INFO  L262         TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 14:42:04,518 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:42:04,703 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 750 proven. 66 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked.
[2023-12-23 14:42:04,703 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 14:42:04,747 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [185957540] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 14:42:04,747 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 14:42:04,747 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6
[2023-12-23 14:42:04,747 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597001213]
[2023-12-23 14:42:04,747 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 14:42:04,748 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-23 14:42:04,748 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:42:04,748 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-23 14:42:04,748 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2023-12-23 14:42:04,749 INFO  L87              Difference]: Start difference. First operand 149 states and 229 transitions. Second operand  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2023-12-23 14:42:05,307 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:42:05,308 INFO  L93              Difference]: Finished difference Result 261 states and 397 transitions.
[2023-12-23 14:42:05,308 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-12-23 14:42:05,308 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 194
[2023-12-23 14:42:05,309 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:42:05,310 INFO  L225             Difference]: With dead ends: 261
[2023-12-23 14:42:05,310 INFO  L226             Difference]: Without dead ends: 176
[2023-12-23 14:42:05,310 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 423 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 14:42:05,311 INFO  L413           NwaCegarLoop]: 169 mSDtfsCounter, 116 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-23 14:42:05,311 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 459 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-23 14:42:05,311 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 176 states.
[2023-12-23 14:42:05,357 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 157.
[2023-12-23 14:42:05,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 157 states, 88 states have (on average 1.25) internal successors, (110), 88 states have internal predecessors, (110), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62)
[2023-12-23 14:42:05,360 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 234 transitions.
[2023-12-23 14:42:05,360 INFO  L78                 Accepts]: Start accepts. Automaton has 157 states and 234 transitions. Word has length 194
[2023-12-23 14:42:05,361 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:42:05,361 INFO  L495      AbstractCegarLoop]: Abstraction has 157 states and 234 transitions.
[2023-12-23 14:42:05,361 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2023-12-23 14:42:05,361 INFO  L276                IsEmpty]: Start isEmpty. Operand 157 states and 234 transitions.
[2023-12-23 14:42:05,365 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2023-12-23 14:42:05,365 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:42:05,365 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:05,387 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 (5)] Ended with exit code 0
[2023-12-23 14:42:05,581 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0
[2023-12-23 14:42:05,781 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 14:42:05,781 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:42:05,782 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:42:05,783 INFO  L85        PathProgramCache]: Analyzing trace with hash -233759341, now seen corresponding path program 1 times
[2023-12-23 14:42:05,783 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:42:05,783 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809766117]
[2023-12-23 14:42:05,783 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:42:05,783 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 14:42:05,783 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:42:05,785 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)
[2023-12-23 14:42:05,787 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
[2023-12-23 14:42:06,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:42:06,042 INFO  L262         TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 14:42:06,045 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:42:06,255 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 540 proven. 75 refuted. 0 times theorem prover too weak. 1245 trivial. 0 not checked.
[2023-12-23 14:42:06,255 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 14:42:06,347 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2023-12-23 14:42:06,348 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:42:06,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809766117]
[2023-12-23 14:42:06,348 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809766117] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-23 14:42:06,349 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-23 14:42:06,349 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9
[2023-12-23 14:42:06,349 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407976672]
[2023-12-23 14:42:06,349 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:42:06,349 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 14:42:06,349 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:42:06,350 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 14:42:06,350 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2023-12-23 14:42:06,350 INFO  L87              Difference]: Start difference. First operand 157 states and 234 transitions. Second operand  has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-23 14:42:06,492 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:42:06,492 INFO  L93              Difference]: Finished difference Result 291 states and 433 transitions.
[2023-12-23 14:42:06,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 14:42:06,493 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 195
[2023-12-23 14:42:06,493 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:42:06,494 INFO  L225             Difference]: With dead ends: 291
[2023-12-23 14:42:06,494 INFO  L226             Difference]: Without dead ends: 199
[2023-12-23 14:42:06,495 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 381 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 14:42:06,495 INFO  L413           NwaCegarLoop]: 147 mSDtfsCounter, 85 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 14:42:06,495 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 252 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 14:42:06,496 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2023-12-23 14:42:06,510 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196.
[2023-12-23 14:42:06,510 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 196 states, 121 states have (on average 1.2644628099173554) internal successors, (153), 122 states have internal predecessors, (153), 66 states have call successors, (66), 8 states have call predecessors, (66), 8 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66)
[2023-12-23 14:42:06,511 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 285 transitions.
[2023-12-23 14:42:06,511 INFO  L78                 Accepts]: Start accepts. Automaton has 196 states and 285 transitions. Word has length 195
[2023-12-23 14:42:06,511 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:42:06,511 INFO  L495      AbstractCegarLoop]: Abstraction has 196 states and 285 transitions.
[2023-12-23 14:42:06,512 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-23 14:42:06,512 INFO  L276                IsEmpty]: Start isEmpty. Operand 196 states and 285 transitions.
[2023-12-23 14:42:06,513 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2023-12-23 14:42:06,513 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:42:06,513 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:42:06,533 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
[2023-12-23 14:42:06,722 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
[2023-12-23 14:42:06,722 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:42:06,723 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:42:06,723 INFO  L85        PathProgramCache]: Analyzing trace with hash -233699759, now seen corresponding path program 1 times
[2023-12-23 14:42:06,723 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:42:06,723 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714941807]
[2023-12-23 14:42:06,723 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:42:06,724 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 14:42:06,724 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:42:06,725 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 14:42:06,726 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 14:42:06,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:42:06,998 INFO  L262         TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-23 14:42:07,003 INFO  L285         TraceCheckSpWp]: Computing forward predicates...