/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-pe-ci_file-67.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 07:38:13,195 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 07:38:13,264 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 07:38:13,269 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 07:38:13,269 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 07:38:13,292 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 07:38:13,292 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 07:38:13,293 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 07:38:13,293 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 07:38:13,296 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 07:38:13,296 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 07:38:13,296 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 07:38:13,297 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 07:38:13,298 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 07:38:13,298 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 07:38:13,298 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 07:38:13,298 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 07:38:13,298 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 07:38:13,299 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 07:38:13,300 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 07:38:13,300 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 07:38:13,300 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 07:38:13,300 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 07:38:13,300 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 07:38:13,301 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 07:38:13,301 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 07:38:13,301 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 07:38:13,301 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 07:38:13,301 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 07:38:13,301 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 07:38:13,302 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 07:38:13,302 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 07:38:13,302 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 07:38:13,302 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 07:38:13,303 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 07:38:13,303 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 07:38:13,303 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 07:38:13,303 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 07:38:13,303 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 07:38:13,303 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 07:38:13,303 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 07:38:13,304 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 07:38:13,304 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 07:38:13,304 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 07:38:13,304 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 07:38:13,304 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 07:38:13,304 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 07:38:13,469 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 07:38:13,484 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 07:38:13,486 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 07:38:13,487 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 07:38:13,487 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 07:38:13,489 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-67.i
[2023-12-23 07:38:14,526 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 07:38:14,675 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 07:38:14,676 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-67.i
[2023-12-23 07:38:14,682 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185b2d630/6f4f0db0a4204f52b38b4668a31ae884/FLAGfba4dedde
[2023-12-23 07:38:14,690 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185b2d630/6f4f0db0a4204f52b38b4668a31ae884
[2023-12-23 07:38:14,692 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 07:38:14,693 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 07:38:14,694 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 07:38:14,694 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 07:38:14,698 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 07:38:14,699 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:14,699 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f7db51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14, skipping insertion in model container
[2023-12-23 07:38:14,699 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:14,731 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 07:38:14,852 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-pe-ci_file-67.i[919,932]
[2023-12-23 07:38:14,895 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 07:38:14,905 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 07:38:14,913 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-pe-ci_file-67.i[919,932]
[2023-12-23 07:38:14,940 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 07:38:14,955 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 07:38:14,958 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14 WrapperNode
[2023-12-23 07:38:14,958 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 07:38:14,959 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 07:38:14,959 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 07:38:14,959 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 07:38:14,963 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:14,972 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:14,997 INFO  L138                Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 208
[2023-12-23 07:38:14,997 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 07:38:14,998 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 07:38:14,998 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 07:38:14,998 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 07:38:15,006 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:15,006 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:15,009 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:15,030 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 07:38:15,030 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:15,030 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:15,053 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:15,056 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:15,057 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:15,059 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:15,061 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 07:38:15,062 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 07:38:15,062 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 07:38:15,062 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 07:38:15,062 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (1/1) ...
[2023-12-23 07:38:15,080 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 07:38:15,103 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 07:38:15,120 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 07:38:15,137 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 07:38:15,153 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 07:38:15,153 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 07:38:15,153 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 07:38:15,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 07:38:15,155 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 07:38:15,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 07:38:15,220 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 07:38:15,221 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 07:38:17,294 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 07:38:17,351 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 07:38:17,351 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 07:38:17,351 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:38:17 BoogieIcfgContainer
[2023-12-23 07:38:17,351 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 07:38:17,353 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 07:38:17,353 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 07:38:17,355 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 07:38:17,355 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:38:14" (1/3) ...
[2023-12-23 07:38:17,355 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501fca8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:38:17, skipping insertion in model container
[2023-12-23 07:38:17,356 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:38:14" (2/3) ...
[2023-12-23 07:38:17,356 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501fca8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:38:17, skipping insertion in model container
[2023-12-23 07:38:17,356 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:38:17" (3/3) ...
[2023-12-23 07:38:17,357 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-67.i
[2023-12-23 07:38:17,401 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 07:38:17,401 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 07:38:17,431 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 07:38:17,436 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;@6dfbba19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 07:38:17,436 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 07:38:17,438 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 85 states, 52 states have (on average 1.5) internal successors, (78), 53 states have internal predecessors, (78), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30)
[2023-12-23 07:38:17,451 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 185
[2023-12-23 07:38:17,451 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:38:17,452 INFO  L195           NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:17,453 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:38:17,456 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:38:17,456 INFO  L85        PathProgramCache]: Analyzing trace with hash 55718457, now seen corresponding path program 1 times
[2023-12-23 07:38:17,465 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:38:17,465 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334168717]
[2023-12-23 07:38:17,466 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:38:17,466 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 07:38:17,466 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:38:17,468 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 07:38:17,469 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 07:38:17,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:38:17,822 INFO  L262         TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 07:38:17,831 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:38:17,891 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 850 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked.
[2023-12-23 07:38:17,891 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:38:17,891 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:38:17,891 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334168717]
[2023-12-23 07:38:17,902 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [334168717] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:38:17,902 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:38:17,902 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 07:38:17,903 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774499383]
[2023-12-23 07:38:17,905 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:38:17,908 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 07:38:17,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:38:17,929 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 07:38:17,930 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 07:38:17,931 INFO  L87              Difference]: Start difference. First operand  has 85 states, 52 states have (on average 1.5) internal successors, (78), 53 states have internal predecessors, (78), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand  has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2023-12-23 07:38:18,459 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:38:18,460 INFO  L93              Difference]: Finished difference Result 166 states and 302 transitions.
[2023-12-23 07:38:18,481 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 07:38:18,483 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 184
[2023-12-23 07:38:18,483 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:38:18,488 INFO  L225             Difference]: With dead ends: 166
[2023-12-23 07:38:18,488 INFO  L226             Difference]: Without dead ends: 82
[2023-12-23 07:38:18,491 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 183 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 07:38:18,493 INFO  L413           NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-23 07:38:18,493 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-23 07:38:18,503 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2023-12-23 07:38:18,518 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82.
[2023-12-23 07:38:18,519 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 50 states have (on average 1.4) internal successors, (70), 50 states have internal predecessors, (70), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30)
[2023-12-23 07:38:18,520 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 130 transitions.
[2023-12-23 07:38:18,521 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 130 transitions. Word has length 184
[2023-12-23 07:38:18,521 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:38:18,521 INFO  L495      AbstractCegarLoop]: Abstraction has 82 states and 130 transitions.
[2023-12-23 07:38:18,521 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2023-12-23 07:38:18,521 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 130 transitions.
[2023-12-23 07:38:18,523 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 185
[2023-12-23 07:38:18,524 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:38:18,524 INFO  L195           NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:18,538 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 07:38:18,735 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 07:38:18,736 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:38:18,736 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:38:18,737 INFO  L85        PathProgramCache]: Analyzing trace with hash -1932833107, now seen corresponding path program 1 times
[2023-12-23 07:38:18,737 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:38:18,737 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518641970]
[2023-12-23 07:38:18,737 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:38:18,738 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 07:38:18,738 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:38:18,739 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 07:38:18,740 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 07:38:19,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:38:19,059 INFO  L262         TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 07:38:19,066 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:38:19,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked.
[2023-12-23 07:38:19,474 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:38:19,474 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:38:19,474 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518641970]
[2023-12-23 07:38:19,474 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518641970] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:38:19,474 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:38:19,474 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 07:38:19,475 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725712223]
[2023-12-23 07:38:19,475 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:38:19,476 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 07:38:19,476 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:38:19,476 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 07:38:19,477 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 07:38:19,477 INFO  L87              Difference]: Start difference. First operand 82 states and 130 transitions. Second operand  has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30)
[2023-12-23 07:38:20,867 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:38:20,867 INFO  L93              Difference]: Finished difference Result 245 states and 389 transitions.
[2023-12-23 07:38:20,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 07:38:20,891 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 184
[2023-12-23 07:38:20,892 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:38:20,894 INFO  L225             Difference]: With dead ends: 245
[2023-12-23 07:38:20,894 INFO  L226             Difference]: Without dead ends: 164
[2023-12-23 07:38:20,895 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 07:38:20,896 INFO  L413           NwaCegarLoop]: 124 mSDtfsCounter, 78 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2023-12-23 07:38:20,896 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 368 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2023-12-23 07:38:20,897 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 164 states.
[2023-12-23 07:38:20,920 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 141.
[2023-12-23 07:38:20,921 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 141 states, 78 states have (on average 1.294871794871795) internal successors, (101), 78 states have internal predecessors, (101), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60)
[2023-12-23 07:38:20,922 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 221 transitions.
[2023-12-23 07:38:20,922 INFO  L78                 Accepts]: Start accepts. Automaton has 141 states and 221 transitions. Word has length 184
[2023-12-23 07:38:20,923 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:38:20,923 INFO  L495      AbstractCegarLoop]: Abstraction has 141 states and 221 transitions.
[2023-12-23 07:38:20,923 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30)
[2023-12-23 07:38:20,923 INFO  L276                IsEmpty]: Start isEmpty. Operand 141 states and 221 transitions.
[2023-12-23 07:38:20,925 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 187
[2023-12-23 07:38:20,925 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:38:20,925 INFO  L195           NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:20,937 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 07:38:21,126 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 07:38:21,130 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:38:21,136 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:38:21,136 INFO  L85        PathProgramCache]: Analyzing trace with hash -1077214881, now seen corresponding path program 1 times
[2023-12-23 07:38:21,137 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:38:21,137 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13666726]
[2023-12-23 07:38:21,137 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:38:21,137 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 07:38:21,137 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:38:21,150 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 07:38:21,209 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 07:38:21,587 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:38:21,608 INFO  L262         TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 07:38:21,612 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:38:22,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 249 proven. 81 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked.
[2023-12-23 07:38:22,029 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 07:38:22,301 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 6 proven. 81 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked.
[2023-12-23 07:38:22,301 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:38:22,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13666726]
[2023-12-23 07:38:22,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [13666726] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 07:38:22,301 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 07:38:22,302 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 07:38:22,302 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355731229]
[2023-12-23 07:38:22,302 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 07:38:22,302 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 07:38:22,303 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:38:22,303 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 07:38:22,303 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 07:38:22,304 INFO  L87              Difference]: Start difference. First operand 141 states and 221 transitions. Second operand  has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 07:38:23,002 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:38:23,002 INFO  L93              Difference]: Finished difference Result 232 states and 356 transitions.
[2023-12-23 07:38:23,023 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 07:38:23,024 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 186
[2023-12-23 07:38:23,025 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:38:23,026 INFO  L225             Difference]: With dead ends: 232
[2023-12-23 07:38:23,026 INFO  L226             Difference]: Without dead ends: 151
[2023-12-23 07:38:23,027 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 364 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 07:38:23,028 INFO  L413           NwaCegarLoop]: 85 mSDtfsCounter, 103 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-23 07:38:23,028 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 191 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-23 07:38:23,029 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 151 states.
[2023-12-23 07:38:23,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147.
[2023-12-23 07:38:23,051 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 147 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 82 states have internal predecessors, (99), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60)
[2023-12-23 07:38:23,053 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 219 transitions.
[2023-12-23 07:38:23,053 INFO  L78                 Accepts]: Start accepts. Automaton has 147 states and 219 transitions. Word has length 186
[2023-12-23 07:38:23,053 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:38:23,053 INFO  L495      AbstractCegarLoop]: Abstraction has 147 states and 219 transitions.
[2023-12-23 07:38:23,054 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 07:38:23,054 INFO  L276                IsEmpty]: Start isEmpty. Operand 147 states and 219 transitions.
[2023-12-23 07:38:23,056 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 189
[2023-12-23 07:38:23,056 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:38:23,056 INFO  L195           NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:23,070 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 07:38:23,270 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 07:38:23,270 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:38:23,271 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:38:23,271 INFO  L85        PathProgramCache]: Analyzing trace with hash 1650507533, now seen corresponding path program 1 times
[2023-12-23 07:38:23,271 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:38:23,271 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353858310]
[2023-12-23 07:38:23,272 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:38:23,272 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 07:38:23,272 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:38:23,273 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 07:38:23,275 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 07:38:23,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:38:23,677 INFO  L262         TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-23 07:38:23,684 INFO  L285         TraceCheckSpWp]: Computing forward predicates...