/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-pr-ci_file-85.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 11:24:07,276 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 11:24:07,348 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 11:24:07,352 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 11:24:07,352 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 11:24:07,375 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 11:24:07,375 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 11:24:07,376 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 11:24:07,376 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 11:24:07,379 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 11:24:07,379 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 11:24:07,379 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 11:24:07,379 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 11:24:07,380 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 11:24:07,381 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 11:24:07,381 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 11:24:07,381 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 11:24:07,381 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 11:24:07,382 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 11:24:07,382 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 11:24:07,383 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 11:24:07,383 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 11:24:07,383 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 11:24:07,383 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 11:24:07,383 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 11:24:07,383 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 11:24:07,384 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 11:24:07,384 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 11:24:07,384 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 11:24:07,384 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 11:24:07,385 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 11:24:07,385 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 11:24:07,385 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 11:24:07,385 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 11:24:07,385 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 11:24:07,385 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 11:24:07,385 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 11:24:07,385 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 11:24:07,386 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 11:24:07,386 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 11:24:07,386 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 11:24:07,386 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 11:24:07,387 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 11:24:07,387 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 11:24:07,387 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 11:24:07,387 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 11:24:07,387 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 11:24:07,583 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 11:24:07,606 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 11:24:07,608 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 11:24:07,609 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 11:24:07,611 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 11:24:07,612 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-85.i
[2023-12-23 11:24:08,600 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 11:24:08,776 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 11:24:08,777 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-85.i
[2023-12-23 11:24:08,783 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43f832f95/d00d053c25634c639b63d48b21c8366e/FLAG175ec880c
[2023-12-23 11:24:08,797 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43f832f95/d00d053c25634c639b63d48b21c8366e
[2023-12-23 11:24:08,799 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 11:24:08,800 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 11:24:08,801 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 11:24:08,801 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 11:24:08,807 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 11:24:08,808 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:24:08" (1/1) ...
[2023-12-23 11:24:08,809 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b44bd3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:08, skipping insertion in model container
[2023-12-23 11:24:08,809 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:24:08" (1/1) ...
[2023-12-23 11:24:08,838 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 11:24:08,935 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-85.i[919,932]
[2023-12-23 11:24:09,030 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 11:24:09,045 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 11:24:09,054 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-pr-ci_file-85.i[919,932]
[2023-12-23 11:24:09,097 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 11:24:09,118 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 11:24:09,119 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09 WrapperNode
[2023-12-23 11:24:09,119 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 11:24:09,120 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 11:24:09,120 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 11:24:09,120 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 11:24:09,124 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,144 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,175 INFO  L138                Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 179
[2023-12-23 11:24:09,175 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 11:24:09,176 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 11:24:09,176 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 11:24:09,176 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 11:24:09,183 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,184 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,197 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,226 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 11:24:09,227 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,227 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,233 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,247 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,249 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,250 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,252 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 11:24:09,253 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 11:24:09,253 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 11:24:09,253 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 11:24:09,254 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (1/1) ...
[2023-12-23 11:24:09,262 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 11:24:09,269 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 11:24:09,280 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 11:24:09,285 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 11:24:09,305 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 11:24:09,305 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 11:24:09,308 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 11:24:09,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 11:24:09,309 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 11:24:09,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 11:24:09,366 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 11:24:09,367 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 11:24:25,323 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 11:24:25,348 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 11:24:25,348 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 11:24:25,349 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:24:25 BoogieIcfgContainer
[2023-12-23 11:24:25,349 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 11:24:25,352 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 11:24:25,352 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 11:24:25,354 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 11:24:25,354 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:24:08" (1/3) ...
[2023-12-23 11:24:25,354 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0709b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:24:25, skipping insertion in model container
[2023-12-23 11:24:25,354 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:24:09" (2/3) ...
[2023-12-23 11:24:25,356 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0709b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:24:25, skipping insertion in model container
[2023-12-23 11:24:25,356 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:24:25" (3/3) ...
[2023-12-23 11:24:25,357 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-85.i
[2023-12-23 11:24:25,368 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 11:24:25,368 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 11:24:25,405 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 11:24:25,411 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;@1cde99b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 11:24:25,411 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 11:24:25,415 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 73 states, 45 states have (on average 1.511111111111111) internal successors, (68), 46 states have internal predecessors, (68), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2023-12-23 11:24:25,433 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2023-12-23 11:24:25,433 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:24:25,434 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:25,434 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:24:25,440 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:24:25,440 INFO  L85        PathProgramCache]: Analyzing trace with hash 1342319227, now seen corresponding path program 1 times
[2023-12-23 11:24:25,449 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:24:25,450 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166780593]
[2023-12-23 11:24:25,450 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:24:25,450 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 11:24:25,451 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:24:25,453 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 11:24:25,462 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 11:24:26,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:24:26,650 INFO  L262         TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 11:24:26,657 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:24:26,701 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked.
[2023-12-23 11:24:26,702 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:24:26,702 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:24:26,702 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166780593]
[2023-12-23 11:24:26,703 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166780593] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:24:26,703 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:24:26,703 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 11:24:26,704 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359701118]
[2023-12-23 11:24:26,705 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:24:26,708 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 11:24:26,708 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:24:26,746 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 11:24:26,747 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 11:24:26,749 INFO  L87              Difference]: Start difference. First operand  has 73 states, 45 states have (on average 1.511111111111111) internal successors, (68), 46 states have internal predecessors, (68), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)
[2023-12-23 11:24:29,075 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 11:24:29,076 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:24:29,076 INFO  L93              Difference]: Finished difference Result 143 states and 259 transitions.
[2023-12-23 11:24:29,112 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 11:24:29,114 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 157
[2023-12-23 11:24:29,114 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:24:29,120 INFO  L225             Difference]: With dead ends: 143
[2023-12-23 11:24:29,120 INFO  L226             Difference]: Without dead ends: 71
[2023-12-23 11:24:29,125 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 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 11:24:29,128 INFO  L413           NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2023-12-23 11:24:29,129 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2023-12-23 11:24:29,141 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2023-12-23 11:24:29,167 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2023-12-23 11:24:29,168 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 44 states have internal predecessors, (62), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2023-12-23 11:24:29,169 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 112 transitions.
[2023-12-23 11:24:29,170 INFO  L78                 Accepts]: Start accepts. Automaton has 71 states and 112 transitions. Word has length 157
[2023-12-23 11:24:29,170 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:24:29,170 INFO  L495      AbstractCegarLoop]: Abstraction has 71 states and 112 transitions.
[2023-12-23 11:24:29,171 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)
[2023-12-23 11:24:29,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 71 states and 112 transitions.
[2023-12-23 11:24:29,174 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2023-12-23 11:24:29,174 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:24:29,175 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:29,207 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 11:24:29,381 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 11:24:29,382 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:24:29,382 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:24:29,382 INFO  L85        PathProgramCache]: Analyzing trace with hash 1236264113, now seen corresponding path program 1 times
[2023-12-23 11:24:29,383 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:24:29,383 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370838768]
[2023-12-23 11:24:29,383 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:24:29,383 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 11:24:29,383 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:24:29,386 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 11:24:29,390 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 11:24:30,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:24:30,645 INFO  L262         TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 11:24:30,650 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:24:32,006 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2023-12-23 11:24:32,006 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:24:32,006 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:24:32,007 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370838768]
[2023-12-23 11:24:32,008 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370838768] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:24:32,008 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:24:32,008 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 11:24:32,008 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039477290]
[2023-12-23 11:24:32,008 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:24:32,010 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 11:24:32,010 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:24:32,011 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 11:24:32,011 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-23 11:24:32,011 INFO  L87              Difference]: Start difference. First operand 71 states and 112 transitions. Second operand  has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-23 11:24:33,952 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 11:24:34,063 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:24:34,063 INFO  L93              Difference]: Finished difference Result 141 states and 223 transitions.
[2023-12-23 11:24:34,094 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 11:24:34,095 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 157
[2023-12-23 11:24:34,095 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:24:34,096 INFO  L225             Difference]: With dead ends: 141
[2023-12-23 11:24:34,096 INFO  L226             Difference]: Without dead ends: 71
[2023-12-23 11:24:34,097 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-23 11:24:34,098 INFO  L413           NwaCegarLoop]: 104 mSDtfsCounter, 140 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-23 11:24:34,098 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 123 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-23 11:24:34,099 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2023-12-23 11:24:34,107 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2023-12-23 11:24:34,108 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 44 states have internal predecessors, (61), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2023-12-23 11:24:34,113 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 111 transitions.
[2023-12-23 11:24:34,113 INFO  L78                 Accepts]: Start accepts. Automaton has 71 states and 111 transitions. Word has length 157
[2023-12-23 11:24:34,114 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:24:34,115 INFO  L495      AbstractCegarLoop]: Abstraction has 71 states and 111 transitions.
[2023-12-23 11:24:34,115 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-23 11:24:34,115 INFO  L276                IsEmpty]: Start isEmpty. Operand 71 states and 111 transitions.
[2023-12-23 11:24:34,116 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2023-12-23 11:24:34,116 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:24:34,117 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:34,144 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 (3)] Ended with exit code 0
[2023-12-23 11:24:34,317 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 11:24:34,318 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:24:34,318 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:24:34,318 INFO  L85        PathProgramCache]: Analyzing trace with hash 317178126, now seen corresponding path program 1 times
[2023-12-23 11:24:34,319 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:24:34,319 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931443071]
[2023-12-23 11:24:34,319 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:24:34,319 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 11:24:34,319 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:24:34,321 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 11:24:34,344 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 11:24:35,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:24:35,484 INFO  L262         TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 11:24:35,487 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:24:36,582 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 118 proven. 69 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked.
[2023-12-23 11:24:36,582 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:24:37,244 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked.
[2023-12-23 11:24:37,244 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:24:37,244 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931443071]
[2023-12-23 11:24:37,244 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [931443071] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 11:24:37,245 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 11:24:37,245 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 11:24:37,245 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224751433]
[2023-12-23 11:24:37,245 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 11:24:37,245 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 11:24:37,245 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:24:37,246 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 11:24:37,246 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 11:24:37,246 INFO  L87              Difference]: Start difference. First operand 71 states and 111 transitions. Second operand  has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49)
[2023-12-23 11:24:39,464 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 11:24:39,538 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:24:39,538 INFO  L93              Difference]: Finished difference Result 149 states and 228 transitions.
[2023-12-23 11:24:39,569 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 11:24:39,569 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 158
[2023-12-23 11:24:39,570 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:24:39,571 INFO  L225             Difference]: With dead ends: 149
[2023-12-23 11:24:39,571 INFO  L226             Difference]: Without dead ends: 79
[2023-12-23 11:24:39,571 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 11:24:39,572 INFO  L413           NwaCegarLoop]: 77 mSDtfsCounter, 83 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-23 11:24:39,572 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 178 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-23 11:24:39,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2023-12-23 11:24:39,597 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75.
[2023-12-23 11:24:39,598 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 75 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 47 states have internal predecessors, (63), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2023-12-23 11:24:39,598 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 113 transitions.
[2023-12-23 11:24:39,599 INFO  L78                 Accepts]: Start accepts. Automaton has 75 states and 113 transitions. Word has length 158
[2023-12-23 11:24:39,599 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:24:39,599 INFO  L495      AbstractCegarLoop]: Abstraction has 75 states and 113 transitions.
[2023-12-23 11:24:39,599 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49)
[2023-12-23 11:24:39,599 INFO  L276                IsEmpty]: Start isEmpty. Operand 75 states and 113 transitions.
[2023-12-23 11:24:39,601 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2023-12-23 11:24:39,601 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:24:39,602 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:39,630 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 11:24:39,802 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 11:24:39,803 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:24:39,803 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:24:39,803 INFO  L85        PathProgramCache]: Analyzing trace with hash -998636706, now seen corresponding path program 1 times
[2023-12-23 11:24:39,803 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:24:39,804 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940613377]
[2023-12-23 11:24:39,804 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:24:39,804 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 11:24:39,804 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:24:39,805 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 11:24:39,806 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 11:24:40,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:24:41,007 INFO  L262         TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 11:24:41,011 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:24:43,360 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2023-12-23 11:24:43,360 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:24:43,361 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:24:43,361 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940613377]
[2023-12-23 11:24:43,361 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940613377] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:24:43,361 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:24:43,361 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 11:24:43,361 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117754186]
[2023-12-23 11:24:43,361 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:24:43,362 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 11:24:43,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:24:43,362 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 11:24:43,362 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-23 11:24:43,362 INFO  L87              Difference]: Start difference. First operand 75 states and 113 transitions. Second operand  has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-23 11:24:45,744 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 11:24:46,861 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:24:46,861 INFO  L93              Difference]: Finished difference Result 224 states and 338 transitions.
[2023-12-23 11:24:46,892 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-23 11:24:46,893 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 160
[2023-12-23 11:24:46,894 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:24:46,895 INFO  L225             Difference]: With dead ends: 224
[2023-12-23 11:24:46,895 INFO  L226             Difference]: Without dead ends: 150
[2023-12-23 11:24:46,896 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-12-23 11:24:46,896 INFO  L413           NwaCegarLoop]: 105 mSDtfsCounter, 74 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2023-12-23 11:24:46,897 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 409 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2023-12-23 11:24:46,897 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 150 states.
[2023-12-23 11:24:46,931 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 133.
[2023-12-23 11:24:46,932 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 133 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 78 states have internal predecessors, (100), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-23 11:24:46,933 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 200 transitions.
[2023-12-23 11:24:46,933 INFO  L78                 Accepts]: Start accepts. Automaton has 133 states and 200 transitions. Word has length 160
[2023-12-23 11:24:46,933 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:24:46,934 INFO  L495      AbstractCegarLoop]: Abstraction has 133 states and 200 transitions.
[2023-12-23 11:24:46,934 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-23 11:24:46,934 INFO  L276                IsEmpty]: Start isEmpty. Operand 133 states and 200 transitions.
[2023-12-23 11:24:46,935 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2023-12-23 11:24:46,935 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:24:46,935 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:46,963 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 11:24:47,162 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 11:24:47,163 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:24:47,163 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:24:47,163 INFO  L85        PathProgramCache]: Analyzing trace with hash -411830692, now seen corresponding path program 1 times
[2023-12-23 11:24:47,163 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:24:47,164 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064946043]
[2023-12-23 11:24:47,164 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:24:47,164 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 11:24:47,164 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:24:47,165 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 11:24:47,194 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-23 11:24:48,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:24:48,369 INFO  L262         TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-23 11:24:48,372 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:24:51,489 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 624 proven. 36 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked.
[2023-12-23 11:24:51,489 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:24:52,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked.
[2023-12-23 11:24:52,765 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:24:52,765 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064946043]
[2023-12-23 11:24:52,766 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064946043] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 11:24:52,766 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 11:24:52,766 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14
[2023-12-23 11:24:52,766 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277045588]
[2023-12-23 11:24:52,766 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 11:24:52,766 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-23 11:24:52,766 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:24:52,767 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-23 11:24:52,767 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2023-12-23 11:24:52,767 INFO  L87              Difference]: Start difference. First operand 133 states and 200 transitions. Second operand  has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 4 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50)
[2023-12-23 11:24:58,266 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 11:24:59,575 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 11:25:03,165 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 11:25:03,626 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:25:03,626 INFO  L93              Difference]: Finished difference Result 291 states and 428 transitions.
[2023-12-23 11:25:03,626 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-23 11:25:03,627 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 4 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 160
[2023-12-23 11:25:03,627 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:25:03,629 INFO  L225             Difference]: With dead ends: 291
[2023-12-23 11:25:03,629 INFO  L226             Difference]: Without dead ends: 210
[2023-12-23 11:25:03,630 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 307 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702
[2023-12-23 11:25:03,630 INFO  L413           NwaCegarLoop]: 98 mSDtfsCounter, 280 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time
[2023-12-23 11:25:03,630 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 626 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time]
[2023-12-23 11:25:03,631 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2023-12-23 11:25:03,650 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 178.
[2023-12-23 11:25:03,650 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 178 states, 109 states have (on average 1.275229357798165) internal successors, (139), 110 states have internal predecessors, (139), 61 states have call successors, (61), 7 states have call predecessors, (61), 7 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61)
[2023-12-23 11:25:03,651 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 261 transitions.
[2023-12-23 11:25:03,651 INFO  L78                 Accepts]: Start accepts. Automaton has 178 states and 261 transitions. Word has length 160
[2023-12-23 11:25:03,652 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:25:03,652 INFO  L495      AbstractCegarLoop]: Abstraction has 178 states and 261 transitions.
[2023-12-23 11:25:03,652 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 4 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50)
[2023-12-23 11:25:03,652 INFO  L276                IsEmpty]: Start isEmpty. Operand 178 states and 261 transitions.
[2023-12-23 11:25:03,653 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2023-12-23 11:25:03,653 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:25:03,653 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:03,681 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-12-23 11:25:03,876 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 11:25:03,876 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:25:03,877 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:25:03,877 INFO  L85        PathProgramCache]: Analyzing trace with hash 969292256, now seen corresponding path program 1 times
[2023-12-23 11:25:03,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:25:03,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819767207]
[2023-12-23 11:25:03,877 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:25:03,877 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 11:25:03,877 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:25:03,878 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 11:25:03,903 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 11:25:05,154 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:25:05,209 INFO  L262         TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-23 11:25:05,213 INFO  L285         TraceCheckSpWp]: Computing forward predicates...