/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-co_file-67.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 13:25:01,399 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 13:25:01,457 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 13:25:01,460 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 13:25:01,460 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 13:25:01,475 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 13:25:01,475 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 13:25:01,476 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 13:25:01,476 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 13:25:01,476 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 13:25:01,476 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 13:25:01,477 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 13:25:01,477 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 13:25:01,477 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 13:25:01,477 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 13:25:01,478 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 13:25:01,478 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 13:25:01,478 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 13:25:01,478 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 13:25:01,479 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 13:25:01,479 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 13:25:01,484 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 13:25:01,484 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 13:25:01,484 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 13:25:01,484 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 13:25:01,485 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 13:25:01,485 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 13:25:01,485 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 13:25:01,485 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 13:25:01,485 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 13:25:01,485 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 13:25:01,485 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 13:25:01,486 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 13:25:01,486 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 13:25:01,486 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 13:25:01,486 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 13:25:01,486 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 13:25:01,486 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 13:25:01,487 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 13:25:01,487 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 13:25:01,487 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 13:25:01,488 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 13:25:01,488 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 13:25:01,488 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 13:25:01,488 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 13:25:01,488 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 13:25:01,488 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 13:25:01,664 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 13:25:01,679 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 13:25:01,682 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 13:25:01,682 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 13:25:01,684 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 13:25:01,686 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-67.i
[2023-12-23 13:25:02,655 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 13:25:02,825 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 13:25:02,826 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-67.i
[2023-12-23 13:25:02,832 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf49af0f6/40b2e6da89024b5fba59c42c7570b8b3/FLAG5c9ea802b
[2023-12-23 13:25:02,842 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf49af0f6/40b2e6da89024b5fba59c42c7570b8b3
[2023-12-23 13:25:02,843 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 13:25:02,844 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 13:25:02,845 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 13:25:02,845 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 13:25:02,851 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 13:25:02,852 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:25:02" (1/1) ...
[2023-12-23 13:25:02,853 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0c1389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:02, skipping insertion in model container
[2023-12-23 13:25:02,853 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:25:02" (1/1) ...
[2023-12-23 13:25:02,881 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 13:25:02,986 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-co_file-67.i[919,932]
[2023-12-23 13:25:03,029 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 13:25:03,057 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 13:25:03,070 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-co_file-67.i[919,932]
[2023-12-23 13:25:03,117 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 13:25:03,132 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 13:25:03,133 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03 WrapperNode
[2023-12-23 13:25:03,133 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 13:25:03,134 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 13:25:03,134 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 13:25:03,134 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 13:25:03,140 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,152 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,179 INFO  L138                Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 224
[2023-12-23 13:25:03,180 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 13:25:03,180 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 13:25:03,180 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 13:25:03,183 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 13:25:03,190 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,191 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,195 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,210 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 13:25:03,210 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,211 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,228 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,231 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,233 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,234 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,237 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 13:25:03,237 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 13:25:03,237 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 13:25:03,237 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 13:25:03,238 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (1/1) ...
[2023-12-23 13:25:03,244 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 13:25:03,254 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 13:25:03,264 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 13:25:03,276 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 13:25:03,291 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 13:25:03,291 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 13:25:03,291 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 13:25:03,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 13:25:03,291 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 13:25:03,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 13:25:03,362 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 13:25:03,365 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 13:25:05,406 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 13:25:05,436 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 13:25:05,437 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 13:25:05,437 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:25:05 BoogieIcfgContainer
[2023-12-23 13:25:05,437 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 13:25:05,439 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 13:25:05,439 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 13:25:05,441 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 13:25:05,441 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:25:02" (1/3) ...
[2023-12-23 13:25:05,442 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75622d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:25:05, skipping insertion in model container
[2023-12-23 13:25:05,442 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:25:03" (2/3) ...
[2023-12-23 13:25:05,442 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75622d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:25:05, skipping insertion in model container
[2023-12-23 13:25:05,442 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:25:05" (3/3) ...
[2023-12-23 13:25:05,443 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-67.i
[2023-12-23 13:25:05,455 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 13:25:05,456 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 13:25:05,488 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 13:25:05,492 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;@6b138daa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 13:25:05,493 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 13:25:05,496 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 94 states, 57 states have (on average 1.456140350877193) internal successors, (83), 58 states have internal predecessors, (83), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 13:25:05,507 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2023-12-23 13:25:05,508 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:25:05,508 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:05,509 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:25:05,512 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:25:05,513 INFO  L85        PathProgramCache]: Analyzing trace with hash 5809054, now seen corresponding path program 1 times
[2023-12-23 13:25:05,536 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:25:05,537 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898483564]
[2023-12-23 13:25:05,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:25:05,537 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 13:25:05,537 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:25:05,539 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 13:25:05,560 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 13:25:05,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:25:05,985 INFO  L262         TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 13:25:05,993 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:25:06,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked.
[2023-12-23 13:25:06,026 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:25:06,026 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:25:06,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898483564]
[2023-12-23 13:25:06,027 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898483564] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:25:06,027 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:25:06,027 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 13:25:06,028 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381077454]
[2023-12-23 13:25:06,028 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:25:06,031 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 13:25:06,032 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:25:06,064 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 13:25:06,064 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 13:25:06,066 INFO  L87              Difference]: Start difference. First operand  has 94 states, 57 states have (on average 1.456140350877193) internal successors, (83), 58 states have internal predecessors, (83), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-23 13:25:06,507 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:25:06,508 INFO  L93              Difference]: Finished difference Result 184 states and 332 transitions.
[2023-12-23 13:25:06,533 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 13:25:06,535 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 209
[2023-12-23 13:25:06,535 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:25:06,540 INFO  L225             Difference]: With dead ends: 184
[2023-12-23 13:25:06,540 INFO  L226             Difference]: Without dead ends: 91
[2023-12-23 13:25:06,543 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 208 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 13:25:06,545 INFO  L413           NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-23 13:25:06,546 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-23 13:25:06,558 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2023-12-23 13:25:06,581 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91.
[2023-12-23 13:25:06,582 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 91 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 55 states have internal predecessors, (75), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 13:25:06,584 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 143 transitions.
[2023-12-23 13:25:06,585 INFO  L78                 Accepts]: Start accepts. Automaton has 91 states and 143 transitions. Word has length 209
[2023-12-23 13:25:06,585 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:25:06,585 INFO  L495      AbstractCegarLoop]: Abstraction has 91 states and 143 transitions.
[2023-12-23 13:25:06,586 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-23 13:25:06,586 INFO  L276                IsEmpty]: Start isEmpty. Operand 91 states and 143 transitions.
[2023-12-23 13:25:06,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2023-12-23 13:25:06,589 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:25:06,589 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:06,605 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 13:25:06,789 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 13:25:06,790 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:25:06,791 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:25:06,791 INFO  L85        PathProgramCache]: Analyzing trace with hash 1529100654, now seen corresponding path program 1 times
[2023-12-23 13:25:06,791 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:25:06,792 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181602857]
[2023-12-23 13:25:06,792 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:25:06,792 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 13:25:06,792 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:25:06,794 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 13:25:06,801 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 13:25:07,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:25:07,178 INFO  L262         TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 13:25:07,183 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:25:07,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-23 13:25:07,757 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:25:07,757 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:25:07,757 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181602857]
[2023-12-23 13:25:07,757 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181602857] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:25:07,757 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:25:07,757 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 13:25:07,757 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536108077]
[2023-12-23 13:25:07,758 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:25:07,759 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 13:25:07,759 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:25:07,759 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 13:25:07,760 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 13:25:07,760 INFO  L87              Difference]: Start difference. First operand 91 states and 143 transitions. Second operand  has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 13:25:09,692 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:25:09,692 INFO  L93              Difference]: Finished difference Result 272 states and 428 transitions.
[2023-12-23 13:25:09,714 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 13:25:09,714 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 209
[2023-12-23 13:25:09,715 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:25:09,717 INFO  L225             Difference]: With dead ends: 272
[2023-12-23 13:25:09,717 INFO  L226             Difference]: Without dead ends: 182
[2023-12-23 13:25:09,718 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 206 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 13:25:09,719 INFO  L413           NwaCegarLoop]: 136 mSDtfsCounter, 88 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-23 13:25:09,719 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 404 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-23 13:25:09,720 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 182 states.
[2023-12-23 13:25:09,755 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 161.
[2023-12-23 13:25:09,756 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 161 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 90 states have internal predecessors, (115), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68)
[2023-12-23 13:25:09,757 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 251 transitions.
[2023-12-23 13:25:09,757 INFO  L78                 Accepts]: Start accepts. Automaton has 161 states and 251 transitions. Word has length 209
[2023-12-23 13:25:09,758 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:25:09,758 INFO  L495      AbstractCegarLoop]: Abstraction has 161 states and 251 transitions.
[2023-12-23 13:25:09,758 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 13:25:09,758 INFO  L276                IsEmpty]: Start isEmpty. Operand 161 states and 251 transitions.
[2023-12-23 13:25:09,760 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2023-12-23 13:25:09,760 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:25:09,760 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:09,784 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 13:25:09,973 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 13:25:09,974 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:25:09,974 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:25:09,974 INFO  L85        PathProgramCache]: Analyzing trace with hash -812918107, now seen corresponding path program 1 times
[2023-12-23 13:25:09,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:25:09,975 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089176393]
[2023-12-23 13:25:09,975 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:25:09,975 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 13:25:09,975 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:25:09,978 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 13:25:09,979 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 13:25:10,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:25:10,350 INFO  L262         TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 13:25:10,354 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:25:10,842 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 285 proven. 93 refuted. 0 times theorem prover too weak. 1866 trivial. 0 not checked.
[2023-12-23 13:25:10,843 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 13:25:11,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 6 proven. 93 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked.
[2023-12-23 13:25:11,205 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:25:11,205 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089176393]
[2023-12-23 13:25:11,205 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089176393] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 13:25:11,205 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 13:25:11,205 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 13:25:11,205 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072357948]
[2023-12-23 13:25:11,206 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 13:25:11,206 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 13:25:11,206 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:25:11,207 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 13:25:11,207 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 13:25:11,207 INFO  L87              Difference]: Start difference. First operand 161 states and 251 transitions. Second operand  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2023-12-23 13:25:12,712 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:25:12,712 INFO  L93              Difference]: Finished difference Result 263 states and 401 transitions.
[2023-12-23 13:25:12,737 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 13:25:12,737 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 212
[2023-12-23 13:25:12,738 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:25:12,739 INFO  L225             Difference]: With dead ends: 263
[2023-12-23 13:25:12,739 INFO  L226             Difference]: Without dead ends: 169
[2023-12-23 13:25:12,740 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 416 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 13:25:12,741 INFO  L413           NwaCegarLoop]: 98 mSDtfsCounter, 136 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2023-12-23 13:25:12,741 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 222 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2023-12-23 13:25:12,742 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 169 states.
[2023-12-23 13:25:12,755 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165.
[2023-12-23 13:25:12,756 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 165 states, 92 states have (on average 1.2065217391304348) internal successors, (111), 92 states have internal predecessors, (111), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68)
[2023-12-23 13:25:12,757 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 247 transitions.
[2023-12-23 13:25:12,757 INFO  L78                 Accepts]: Start accepts. Automaton has 165 states and 247 transitions. Word has length 212
[2023-12-23 13:25:12,758 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:25:12,758 INFO  L495      AbstractCegarLoop]: Abstraction has 165 states and 247 transitions.
[2023-12-23 13:25:12,758 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2023-12-23 13:25:12,758 INFO  L276                IsEmpty]: Start isEmpty. Operand 165 states and 247 transitions.
[2023-12-23 13:25:12,760 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2023-12-23 13:25:12,760 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:25:12,760 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:12,776 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 13:25:12,975 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 13:25:12,976 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:25:12,980 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:25:12,980 INFO  L85        PathProgramCache]: Analyzing trace with hash 824118445, now seen corresponding path program 1 times
[2023-12-23 13:25:12,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:25:12,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366590402]
[2023-12-23 13:25:12,981 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:25:12,981 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 13:25:12,981 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:25:12,982 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 13:25:13,004 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 13:25:13,333 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:25:13,355 INFO  L262         TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 13:25:13,360 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:25:13,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-23 13:25:13,905 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:25:13,905 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:25:13,905 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366590402]
[2023-12-23 13:25:13,905 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366590402] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:25:13,905 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:25:13,905 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 13:25:13,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599726324]
[2023-12-23 13:25:13,906 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:25:13,906 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 13:25:13,906 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:25:13,907 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 13:25:13,907 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-23 13:25:13,907 INFO  L87              Difference]: Start difference. First operand 165 states and 247 transitions. Second operand  has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 13:25:16,129 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:25:16,129 INFO  L93              Difference]: Finished difference Result 352 states and 532 transitions.
[2023-12-23 13:25:16,129 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-23 13:25:16,129 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 212
[2023-12-23 13:25:16,130 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:25:16,131 INFO  L225             Difference]: With dead ends: 352
[2023-12-23 13:25:16,131 INFO  L226             Difference]: Without dead ends: 260
[2023-12-23 13:25:16,132 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 13:25:16,133 INFO  L413           NwaCegarLoop]: 130 mSDtfsCounter, 236 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2023-12-23 13:25:16,133 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 505 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2023-12-23 13:25:16,134 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 260 states.
[2023-12-23 13:25:16,156 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 255.
[2023-12-23 13:25:16,157 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 255 states, 146 states have (on average 1.2328767123287672) internal successors, (180), 146 states have internal predecessors, (180), 102 states have call successors, (102), 6 states have call predecessors, (102), 6 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102)
[2023-12-23 13:25:16,158 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 384 transitions.
[2023-12-23 13:25:16,158 INFO  L78                 Accepts]: Start accepts. Automaton has 255 states and 384 transitions. Word has length 212
[2023-12-23 13:25:16,159 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:25:16,159 INFO  L495      AbstractCegarLoop]: Abstraction has 255 states and 384 transitions.
[2023-12-23 13:25:16,159 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 13:25:16,159 INFO  L276                IsEmpty]: Start isEmpty. Operand 255 states and 384 transitions.
[2023-12-23 13:25:16,165 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2023-12-23 13:25:16,165 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:25:16,165 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:16,181 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 13:25:16,378 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 13:25:16,379 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:25:16,379 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:25:16,379 INFO  L85        PathProgramCache]: Analyzing trace with hash -290170035, now seen corresponding path program 1 times
[2023-12-23 13:25:16,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:25:16,380 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142413091]
[2023-12-23 13:25:16,380 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:25:16,380 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 13:25:16,380 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:25:16,381 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 13:25:16,383 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 13:25:16,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:25:16,771 INFO  L262         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 13:25:16,774 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:25:17,919 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 1065 proven. 63 refuted. 0 times theorem prover too weak. 1116 trivial. 0 not checked.
[2023-12-23 13:25:17,920 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 13:25:19,298 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-23 13:25:19,298 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:25:19,298 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142413091]
[2023-12-23 13:25:19,298 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [142413091] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-23 13:25:19,298 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-23 13:25:19,299 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8
[2023-12-23 13:25:19,299 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320104977]
[2023-12-23 13:25:19,299 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:25:19,299 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 13:25:19,299 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:25:19,300 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 13:25:19,300 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-23 13:25:19,300 INFO  L87              Difference]: Start difference. First operand 255 states and 384 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 13:25:21,791 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:25:21,792 INFO  L93              Difference]: Finished difference Result 618 states and 931 transitions.
[2023-12-23 13:25:21,792 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 13:25:21,793 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213
[2023-12-23 13:25:21,793 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:25:21,796 INFO  L225             Difference]: With dead ends: 618
[2023-12-23 13:25:21,796 INFO  L226             Difference]: Without dead ends: 441
[2023-12-23 13:25:21,797 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 358 SyntacticMatches, 60 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-23 13:25:21,799 INFO  L413           NwaCegarLoop]: 118 mSDtfsCounter, 68 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2023-12-23 13:25:21,800 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 230 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2023-12-23 13:25:21,802 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 441 states.
[2023-12-23 13:25:21,849 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 439.
[2023-12-23 13:25:21,852 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 439 states, 258 states have (on average 1.2403100775193798) internal successors, (320), 258 states have internal predecessors, (320), 170 states have call successors, (170), 10 states have call predecessors, (170), 10 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170)
[2023-12-23 13:25:21,855 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 660 transitions.
[2023-12-23 13:25:21,856 INFO  L78                 Accepts]: Start accepts. Automaton has 439 states and 660 transitions. Word has length 213
[2023-12-23 13:25:21,856 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:25:21,856 INFO  L495      AbstractCegarLoop]: Abstraction has 439 states and 660 transitions.
[2023-12-23 13:25:21,856 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 13:25:21,857 INFO  L276                IsEmpty]: Start isEmpty. Operand 439 states and 660 transitions.
[2023-12-23 13:25:21,859 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-23 13:25:21,859 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:25:21,859 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:21,872 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 13:25:22,074 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 13:25:22,076 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:25:22,076 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:25:22,076 INFO  L85        PathProgramCache]: Analyzing trace with hash 317282835, now seen corresponding path program 1 times
[2023-12-23 13:25:22,077 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:25:22,077 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624295143]
[2023-12-23 13:25:22,077 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:25:22,077 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 13:25:22,077 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:25:22,078 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 13:25:22,079 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 13:25:22,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:25:22,447 INFO  L262         TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 25 conjunts are in the unsatisfiable core
[2023-12-23 13:25:22,452 INFO  L285         TraceCheckSpWp]: Computing forward predicates...