/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-70.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 14:34:30,578 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 14:34:30,648 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 14:34:30,651 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 14:34:30,652 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 14:34:30,665 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 14:34:30,665 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 14:34:30,665 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 14:34:30,666 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 14:34:30,666 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 14:34:30,666 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 14:34:30,667 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 14:34:30,667 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 14:34:30,667 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 14:34:30,668 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 14:34:30,668 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 14:34:30,668 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 14:34:30,668 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 14:34:30,669 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 14:34:30,669 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 14:34:30,669 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 14:34:30,672 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 14:34:30,672 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 14:34:30,673 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 14:34:30,673 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 14:34:30,673 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 14:34:30,673 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 14:34:30,674 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 14:34:30,674 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 14:34:30,674 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 14:34:30,674 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 14:34:30,674 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 14:34:30,674 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 14:34:30,675 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 14:34:30,675 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:34:30,675 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 14:34:30,675 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 14:34:30,675 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 14:34:30,676 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 14:34:30,676 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 14:34:30,676 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 14:34:30,677 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 14:34:30,677 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 14:34:30,677 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 14:34:30,678 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 14:34:30,678 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 14:34:30,678 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 14:34:30,885 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 14:34:30,906 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 14:34:30,908 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 14:34:30,910 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 14:34:30,911 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 14:34:30,912 INFO  L431   ainManager$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-70.i
[2023-12-23 14:34:31,987 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 14:34:32,186 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 14:34:32,187 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-70.i
[2023-12-23 14:34:32,193 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b3455f03/cee498c0d05a458a86615a4c1c006f25/FLAGf133ea2c7
[2023-12-23 14:34:32,203 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b3455f03/cee498c0d05a458a86615a4c1c006f25
[2023-12-23 14:34:32,205 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 14:34:32,206 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 14:34:32,207 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 14:34:32,207 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 14:34:32,211 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 14:34:32,211 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,212 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb5cf41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32, skipping insertion in model container
[2023-12-23 14:34:32,212 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,237 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 14:34:32,341 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-70.i[919,932]
[2023-12-23 14:34:32,393 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:34:32,404 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 14:34:32,412 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-70.i[919,932]
[2023-12-23 14:34:32,431 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 14:34:32,443 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 14:34:32,443 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32 WrapperNode
[2023-12-23 14:34:32,444 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 14:34:32,444 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 14:34:32,444 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 14:34:32,445 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 14:34:32,449 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,457 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,479 INFO  L138                Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 152
[2023-12-23 14:34:32,479 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 14:34:32,480 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 14:34:32,480 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 14:34:32,480 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 14:34:32,487 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,488 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,491 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,500 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 14:34:32,500 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,500 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,507 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,524 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,526 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,528 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,530 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 14:34:32,531 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 14:34:32,531 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 14:34:32,531 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 14:34:32,532 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (1/1) ...
[2023-12-23 14:34:32,546 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 14:34:32,556 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 14:34:32,594 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 14:34:32,667 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 14:34:32,699 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 14:34:32,699 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 14:34:32,699 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 14:34:32,700 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 14:34:32,701 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 14:34:32,701 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 14:34:32,784 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 14:34:32,785 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 14:34:38,504 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 14:34:38,543 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 14:34:38,543 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 14:34:38,544 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:34:38 BoogieIcfgContainer
[2023-12-23 14:34:38,544 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 14:34:38,546 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 14:34:38,546 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 14:34:38,548 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 14:34:38,548 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:34:32" (1/3) ...
[2023-12-23 14:34:38,549 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c949942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:34:38, skipping insertion in model container
[2023-12-23 14:34:38,549 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:34:32" (2/3) ...
[2023-12-23 14:34:38,550 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c949942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:34:38, skipping insertion in model container
[2023-12-23 14:34:38,550 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:34:38" (3/3) ...
[2023-12-23 14:34:38,551 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-70.i
[2023-12-23 14:34:38,564 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 14:34:38,564 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 14:34:38,596 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 14:34:38,601 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;@55c1435d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 14:34:38,601 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 14:34:38,604 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 57 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 40 states have internal predecessors, (62), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2023-12-23 14:34:38,611 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2023-12-23 14:34:38,612 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:34:38,612 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:34:38,613 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:34:38,617 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:34:38,617 INFO  L85        PathProgramCache]: Analyzing trace with hash -1822322114, now seen corresponding path program 1 times
[2023-12-23 14:34:38,626 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:34:38,626 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215162409]
[2023-12-23 14:34:38,626 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:34:38,627 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 14:34:38,627 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:34:38,629 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 14:34:38,634 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 14:34:39,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:34:39,046 INFO  L262         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 14:34:39,052 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:34:39,077 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2023-12-23 14:34:39,077 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:34:39,077 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:34:39,077 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215162409]
[2023-12-23 14:34:39,078 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215162409] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:34:39,078 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:34:39,078 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 14:34:39,079 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345800937]
[2023-12-23 14:34:39,080 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:34:39,083 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 14:34:39,083 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:34:39,101 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 14:34:39,101 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 14:34:39,103 INFO  L87              Difference]: Start difference. First operand  has 57 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 40 states have internal predecessors, (62), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-23 14:34:40,434 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:34:40,435 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:34:40,435 INFO  L93              Difference]: Finished difference Result 111 states and 197 transitions.
[2023-12-23 14:34:40,471 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 14:34:40,472 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 103
[2023-12-23 14:34:40,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:34:40,477 INFO  L225             Difference]: With dead ends: 111
[2023-12-23 14:34:40,477 INFO  L226             Difference]: Without dead ends: 55
[2023-12-23 14:34:40,479 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 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 14:34:40,482 INFO  L413           NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2023-12-23 14:34:40,482 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2023-12-23 14:34:40,493 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2023-12-23 14:34:40,507 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2023-12-23 14:34:40,508 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 38 states have internal predecessors, (55), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2023-12-23 14:34:40,509 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 85 transitions.
[2023-12-23 14:34:40,510 INFO  L78                 Accepts]: Start accepts. Automaton has 55 states and 85 transitions. Word has length 103
[2023-12-23 14:34:40,510 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:34:40,510 INFO  L495      AbstractCegarLoop]: Abstraction has 55 states and 85 transitions.
[2023-12-23 14:34:40,510 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-23 14:34:40,510 INFO  L276                IsEmpty]: Start isEmpty. Operand 55 states and 85 transitions.
[2023-12-23 14:34:40,513 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2023-12-23 14:34:40,513 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:34:40,513 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:34:40,526 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 14:34:40,725 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 14:34:40,726 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:34:40,726 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:34:40,727 INFO  L85        PathProgramCache]: Analyzing trace with hash -467096698, now seen corresponding path program 1 times
[2023-12-23 14:34:40,727 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:34:40,727 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416542141]
[2023-12-23 14:34:40,727 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:34:40,728 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 14:34:40,728 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:34:40,736 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 14:34:40,738 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 14:34:41,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:34:41,111 INFO  L262         TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 14:34:41,115 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:34:42,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2023-12-23 14:34:42,420 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 14:34:42,420 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:34:42,420 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416542141]
[2023-12-23 14:34:42,420 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [416542141] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 14:34:42,420 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 14:34:42,420 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 14:34:42,420 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501905280]
[2023-12-23 14:34:42,421 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 14:34:42,421 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 14:34:42,422 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:34:42,422 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 14:34:42,422 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 14:34:42,422 INFO  L87              Difference]: Start difference. First operand 55 states and 85 transitions. Second operand  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2023-12-23 14:34:45,855 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:34:47,593 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:34:49,826 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:34:50,525 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:34:50,525 INFO  L93              Difference]: Finished difference Result 150 states and 234 transitions.
[2023-12-23 14:34:50,526 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 14:34:50,526 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 103
[2023-12-23 14:34:50,526 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:34:50,528 INFO  L225             Difference]: With dead ends: 150
[2023-12-23 14:34:50,528 INFO  L226             Difference]: Without dead ends: 96
[2023-12-23 14:34:50,528 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 14:34:50,529 INFO  L413           NwaCegarLoop]: 69 mSDtfsCounter, 19 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time
[2023-12-23 14:34:50,529 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 127 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time]
[2023-12-23 14:34:50,530 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2023-12-23 14:34:50,542 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 85.
[2023-12-23 14:34:50,542 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 85 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 52 states have internal predecessors, (69), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30)
[2023-12-23 14:34:50,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 129 transitions.
[2023-12-23 14:34:50,543 INFO  L78                 Accepts]: Start accepts. Automaton has 85 states and 129 transitions. Word has length 103
[2023-12-23 14:34:50,544 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:34:50,544 INFO  L495      AbstractCegarLoop]: Abstraction has 85 states and 129 transitions.
[2023-12-23 14:34:50,544 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2023-12-23 14:34:50,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 85 states and 129 transitions.
[2023-12-23 14:34:50,545 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2023-12-23 14:34:50,545 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:34:50,545 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:34:50,566 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 14:34:50,761 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 14:34:50,763 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:34:50,764 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:34:50,764 INFO  L85        PathProgramCache]: Analyzing trace with hash -2055444600, now seen corresponding path program 1 times
[2023-12-23 14:34:50,764 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:34:50,765 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395427808]
[2023-12-23 14:34:50,765 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:34:50,766 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 14:34:50,767 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:34:50,789 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 14:34:50,833 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 14:34:51,163 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:34:51,181 INFO  L262         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 14:34:51,184 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:34:51,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 152 proven. 33 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked.
[2023-12-23 14:34:51,367 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 14:34:51,536 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2023-12-23 14:34:51,536 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:34:51,536 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395427808]
[2023-12-23 14:34:51,536 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [395427808] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 14:34:51,536 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 14:34:51,536 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 14:34:51,537 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493484706]
[2023-12-23 14:34:51,537 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 14:34:51,537 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 14:34:51,537 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:34:51,538 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 14:34:51,538 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 14:34:51,538 INFO  L87              Difference]: Start difference. First operand 85 states and 129 transitions. Second operand  has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2023-12-23 14:34:55,035 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:34:55,122 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:34:55,122 INFO  L93              Difference]: Finished difference Result 151 states and 223 transitions.
[2023-12-23 14:34:55,159 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 14:34:55,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 103
[2023-12-23 14:34:55,160 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:34:55,161 INFO  L225             Difference]: With dead ends: 151
[2023-12-23 14:34:55,161 INFO  L226             Difference]: Without dead ends: 97
[2023-12-23 14:34:55,162 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 14:34:55,163 INFO  L413           NwaCegarLoop]: 57 mSDtfsCounter, 80 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2023-12-23 14:34:55,163 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 137 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2023-12-23 14:34:55,167 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2023-12-23 14:34:55,188 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93.
[2023-12-23 14:34:55,189 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 93 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 58 states have internal predecessors, (73), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30)
[2023-12-23 14:34:55,190 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions.
[2023-12-23 14:34:55,190 INFO  L78                 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 103
[2023-12-23 14:34:55,191 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:34:55,191 INFO  L495      AbstractCegarLoop]: Abstraction has 93 states and 133 transitions.
[2023-12-23 14:34:55,191 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2023-12-23 14:34:55,191 INFO  L276                IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions.
[2023-12-23 14:34:55,192 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2023-12-23 14:34:55,192 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:34:55,192 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:34:55,218 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 14:34:55,393 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 14:34:55,394 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:34:55,394 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:34:55,394 INFO  L85        PathProgramCache]: Analyzing trace with hash -60653808, now seen corresponding path program 1 times
[2023-12-23 14:34:55,395 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:34:55,395 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446577162]
[2023-12-23 14:34:55,395 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:34:55,395 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 14:34:55,395 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:34:55,401 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 14:34:55,405 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 14:34:55,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:34:55,797 INFO  L262         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-23 14:34:55,800 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:34:57,389 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 168 proven. 9 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked.
[2023-12-23 14:34:57,390 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 14:34:57,691 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 14:34:57,691 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446577162]
[2023-12-23 14:34:57,692 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [446577162] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 14:34:57,692 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [72624401]
[2023-12-23 14:34:57,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:34:57,692 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 14:34:57,692 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 14:34:57,725 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 14:34:57,731 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 14:34:58,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:34:58,545 INFO  L262         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-23 14:34:58,548 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 14:34:59,839 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 168 proven. 9 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked.
[2023-12-23 14:34:59,839 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 14:35:00,026 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [72624401] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 14:35:00,026 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 14:35:00,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8
[2023-12-23 14:35:00,027 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525746396]
[2023-12-23 14:35:00,027 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 14:35:00,027 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-23 14:35:00,027 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 14:35:00,028 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-23 14:35:00,028 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156
[2023-12-23 14:35:00,028 INFO  L87              Difference]: Start difference. First operand 93 states and 133 transitions. Second operand  has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-23 14:35:02,370 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:35:04,824 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:35:07,895 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:35:11,130 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 14:35:11,818 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 14:35:11,818 INFO  L93              Difference]: Finished difference Result 224 states and 323 transitions.
[2023-12-23 14:35:11,818 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-12-23 14:35:11,819 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 104
[2023-12-23 14:35:11,819 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 14:35:11,820 INFO  L225             Difference]: With dead ends: 224
[2023-12-23 14:35:11,820 INFO  L226             Difference]: Without dead ends: 166
[2023-12-23 14:35:11,821 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506
[2023-12-23 14:35:11,821 INFO  L413           NwaCegarLoop]: 103 mSDtfsCounter, 150 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time
[2023-12-23 14:35:11,821 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 386 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time]
[2023-12-23 14:35:11,822 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 166 states.
[2023-12-23 14:35:11,835 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 151.
[2023-12-23 14:35:11,835 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 151 states, 98 states have (on average 1.2448979591836735) internal successors, (122), 98 states have internal predecessors, (122), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45)
[2023-12-23 14:35:11,836 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 212 transitions.
[2023-12-23 14:35:11,836 INFO  L78                 Accepts]: Start accepts. Automaton has 151 states and 212 transitions. Word has length 104
[2023-12-23 14:35:11,837 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 14:35:11,837 INFO  L495      AbstractCegarLoop]: Abstraction has 151 states and 212 transitions.
[2023-12-23 14:35:11,837 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-23 14:35:11,837 INFO  L276                IsEmpty]: Start isEmpty. Operand 151 states and 212 transitions.
[2023-12-23 14:35:11,838 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2023-12-23 14:35:11,838 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 14:35:11,838 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:11,849 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-23 14:35:12,055 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 14:35:12,254 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 14:35:12,255 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 14:35:12,255 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 14:35:12,255 INFO  L85        PathProgramCache]: Analyzing trace with hash -3395506, now seen corresponding path program 1 times
[2023-12-23 14:35:12,255 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 14:35:12,256 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174689050]
[2023-12-23 14:35:12,256 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 14:35:12,256 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 14:35:12,256 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 14:35:12,257 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 14:35:12,281 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 14:35:12,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 14:35:12,603 INFO  L262         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-23 14:35:12,606 INFO  L285         TraceCheckSpWp]: Computing forward predicates...