/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_fillercodesize_ps-cn-50_file-93.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 06:50:22,752 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 06:50:22,804 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 06:50:22,810 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 06:50:22,811 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 06:50:22,835 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 06:50:22,835 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 06:50:22,836 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 06:50:22,841 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 06:50:22,842 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 06:50:22,842 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 06:50:22,842 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 06:50:22,843 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 06:50:22,843 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 06:50:22,843 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 06:50:22,843 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 06:50:22,844 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 06:50:22,844 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 06:50:22,844 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 06:50:22,844 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 06:50:22,845 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 06:50:22,845 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 06:50:22,845 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 06:50:22,846 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 06:50:22,846 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 06:50:22,846 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 06:50:22,846 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 06:50:22,846 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 06:50:22,847 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 06:50:22,847 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 06:50:22,847 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 06:50:22,847 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 06:50:22,847 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 06:50:22,848 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 06:50:22,848 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 06:50:22,848 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 06:50:22,848 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 06:50:22,848 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 06:50:22,848 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 06:50:22,849 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 06:50:22,849 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 06:50:22,850 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 06:50:22,850 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 06:50:22,850 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 06:50:22,850 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 06:50:22,850 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 06:50:22,851 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 06:50:23,070 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 06:50:23,100 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 06:50:23,102 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 06:50:23,103 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 06:50:23,104 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 06:50:23,106 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-93.i
[2023-12-23 06:50:24,203 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 06:50:24,364 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 06:50:24,364 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-93.i
[2023-12-23 06:50:24,371 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eedd66dfd/b2f0ae9a2b4f411085516539fa66efd2/FLAG7c33fda45
[2023-12-23 06:50:24,383 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eedd66dfd/b2f0ae9a2b4f411085516539fa66efd2
[2023-12-23 06:50:24,385 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 06:50:24,386 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 06:50:24,387 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 06:50:24,387 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 06:50:24,390 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 06:50:24,391 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,392 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5045ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24, skipping insertion in model container
[2023-12-23 06:50:24,392 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,428 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 06:50:24,522 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_fillercodesize_ps-cn-50_file-93.i[915,928]
[2023-12-23 06:50:24,589 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 06:50:24,605 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 06:50:24,613 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_fillercodesize_ps-cn-50_file-93.i[915,928]
[2023-12-23 06:50:24,666 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 06:50:24,684 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 06:50:24,685 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24 WrapperNode
[2023-12-23 06:50:24,685 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 06:50:24,686 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 06:50:24,686 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 06:50:24,686 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 06:50:24,690 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,713 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,751 INFO  L138                Inliner]: procedures = 27, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 294
[2023-12-23 06:50:24,751 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 06:50:24,752 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 06:50:24,752 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 06:50:24,752 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 06:50:24,760 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,761 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,765 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,775 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 06:50:24,775 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,776 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,795 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,798 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,817 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,819 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,823 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 06:50:24,824 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 06:50:24,824 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 06:50:24,824 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 06:50:24,825 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (1/1) ...
[2023-12-23 06:50:24,838 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 06:50:24,848 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 06:50:24,858 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 06:50:24,884 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 06:50:24,891 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 06:50:24,891 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 06:50:24,891 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 06:50:24,893 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 06:50:24,893 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 06:50:24,893 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 06:50:24,971 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 06:50:24,973 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 06:50:40,410 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 06:50:40,473 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 06:50:40,473 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 06:50:40,474 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:50:40 BoogieIcfgContainer
[2023-12-23 06:50:40,474 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 06:50:40,476 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 06:50:40,476 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 06:50:40,478 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 06:50:40,478 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:50:24" (1/3) ...
[2023-12-23 06:50:40,478 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d138169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:50:40, skipping insertion in model container
[2023-12-23 06:50:40,479 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:50:24" (2/3) ...
[2023-12-23 06:50:40,479 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d138169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:50:40, skipping insertion in model container
[2023-12-23 06:50:40,479 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:50:40" (3/3) ...
[2023-12-23 06:50:40,480 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-93.i
[2023-12-23 06:50:40,493 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 06:50:40,493 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 06:50:40,545 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 06:50:40,550 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;@5e410e61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 06:50:40,550 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 06:50:40,554 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 130 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 70 states have internal predecessors, (94), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58)
[2023-12-23 06:50:40,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 347
[2023-12-23 06:50:40,578 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 06:50:40,579 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:40,580 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 06:50:40,583 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 06:50:40,584 INFO  L85        PathProgramCache]: Analyzing trace with hash -1811927914, now seen corresponding path program 1 times
[2023-12-23 06:50:40,593 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 06:50:40,594 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670753961]
[2023-12-23 06:50:40,594 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 06:50:40,594 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 06:50:40,594 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 06:50:40,607 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 06:50:40,637 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 06:50:41,208 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 06:50:41,232 INFO  L262         TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 06:50:41,243 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 06:50:41,301 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 2274 proven. 0 refuted. 0 times theorem prover too weak. 4338 trivial. 0 not checked.
[2023-12-23 06:50:41,302 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 06:50:41,309 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 06:50:41,310 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670753961]
[2023-12-23 06:50:41,310 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [670753961] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 06:50:41,310 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 06:50:41,311 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 06:50:41,312 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538406513]
[2023-12-23 06:50:41,312 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 06:50:41,316 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 06:50:41,316 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 06:50:41,340 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 06:50:41,340 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 06:50:41,342 INFO  L87              Difference]: Start difference. First operand  has 130 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 70 states have internal predecessors, (94), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand  has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 06:50:45,563 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 06:50:45,564 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 06:50:45,564 INFO  L93              Difference]: Finished difference Result 257 states and 476 transitions.
[2023-12-23 06:50:45,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 06:50:45,629 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 346
[2023-12-23 06:50:45,630 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 06:50:45,635 INFO  L225             Difference]: With dead ends: 257
[2023-12-23 06:50:45,636 INFO  L226             Difference]: Without dead ends: 128
[2023-12-23 06:50:45,639 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 345 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 06:50:45,642 INFO  L413           NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2023-12-23 06:50:45,643 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time]
[2023-12-23 06:50:45,654 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2023-12-23 06:50:45,702 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128.
[2023-12-23 06:50:45,703 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 128 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 68 states have internal predecessors, (89), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58)
[2023-12-23 06:50:45,710 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 205 transitions.
[2023-12-23 06:50:45,711 INFO  L78                 Accepts]: Start accepts. Automaton has 128 states and 205 transitions. Word has length 346
[2023-12-23 06:50:45,711 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 06:50:45,712 INFO  L495      AbstractCegarLoop]: Abstraction has 128 states and 205 transitions.
[2023-12-23 06:50:45,712 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2023-12-23 06:50:45,712 INFO  L276                IsEmpty]: Start isEmpty. Operand 128 states and 205 transitions.
[2023-12-23 06:50:45,717 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 347
[2023-12-23 06:50:45,717 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 06:50:45,718 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:45,744 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 06:50:45,918 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 06:50:45,921 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 06:50:45,922 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 06:50:45,922 INFO  L85        PathProgramCache]: Analyzing trace with hash 1039356186, now seen corresponding path program 1 times
[2023-12-23 06:50:45,923 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 06:50:45,923 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119508870]
[2023-12-23 06:50:45,923 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 06:50:45,924 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 06:50:45,924 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 06:50:45,932 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 06:50:45,967 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 06:50:46,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 06:50:46,480 INFO  L262         TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 06:50:46,488 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 06:50:46,617 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked.
[2023-12-23 06:50:46,617 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 06:50:46,617 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 06:50:46,618 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119508870]
[2023-12-23 06:50:46,618 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119508870] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 06:50:46,618 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 06:50:46,618 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 06:50:46,618 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270717704]
[2023-12-23 06:50:46,618 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 06:50:46,620 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 06:50:46,620 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 06:50:46,621 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 06:50:46,621 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 06:50:46,622 INFO  L87              Difference]: Start difference. First operand 128 states and 205 transitions. Second operand  has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 06:50:51,158 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 06:50:55,165 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 06:50:59,169 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 06:50:59,256 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 06:50:59,256 INFO  L93              Difference]: Finished difference Result 285 states and 451 transitions.
[2023-12-23 06:50:59,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 06:50:59,257 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 346
[2023-12-23 06:50:59,258 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 06:50:59,260 INFO  L225             Difference]: With dead ends: 285
[2023-12-23 06:50:59,260 INFO  L226             Difference]: Without dead ends: 158
[2023-12-23 06:50:59,261 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 06:50:59,262 INFO  L413           NwaCegarLoop]: 198 mSDtfsCounter, 36 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time
[2023-12-23 06:50:59,262 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 388 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time]
[2023-12-23 06:50:59,263 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 158 states.
[2023-12-23 06:50:59,278 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155.
[2023-12-23 06:50:59,278 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 155 states, 90 states have (on average 1.3111111111111111) internal successors, (118), 91 states have internal predecessors, (118), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62)
[2023-12-23 06:50:59,279 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 242 transitions.
[2023-12-23 06:50:59,280 INFO  L78                 Accepts]: Start accepts. Automaton has 155 states and 242 transitions. Word has length 346
[2023-12-23 06:50:59,281 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 06:50:59,281 INFO  L495      AbstractCegarLoop]: Abstraction has 155 states and 242 transitions.
[2023-12-23 06:50:59,281 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 06:50:59,281 INFO  L276                IsEmpty]: Start isEmpty. Operand 155 states and 242 transitions.
[2023-12-23 06:50:59,287 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 348
[2023-12-23 06:50:59,287 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 06:50:59,287 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:59,306 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 06:50:59,499 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 06:50:59,500 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 06:50:59,501 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 06:50:59,501 INFO  L85        PathProgramCache]: Analyzing trace with hash 1565572685, now seen corresponding path program 1 times
[2023-12-23 06:50:59,502 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 06:50:59,502 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977840311]
[2023-12-23 06:50:59,502 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 06:50:59,502 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 06:50:59,502 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 06:50:59,504 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 06:50:59,517 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 06:51:00,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 06:51:00,095 INFO  L262         TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 06:51:00,101 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 06:51:00,347 INFO  L134       CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked.
[2023-12-23 06:51:00,347 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 06:51:00,348 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 06:51:00,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977840311]
[2023-12-23 06:51:00,348 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977840311] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 06:51:00,348 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 06:51:00,348 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 06:51:00,348 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406839569]
[2023-12-23 06:51:00,348 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 06:51:00,349 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 06:51:00,349 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 06:51:00,350 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 06:51:00,350 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 06:51:00,350 INFO  L87              Difference]: Start difference. First operand 155 states and 242 transitions. Second operand  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 06:51:03,061 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 06:51:03,231 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 06:51:03,231 INFO  L93              Difference]: Finished difference Result 375 states and 578 transitions.
[2023-12-23 06:51:03,244 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 06:51:03,245 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 347
[2023-12-23 06:51:03,246 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 06:51:03,248 INFO  L225             Difference]: With dead ends: 375
[2023-12-23 06:51:03,248 INFO  L226             Difference]: Without dead ends: 221
[2023-12-23 06:51:03,249 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 06:51:03,250 INFO  L413           NwaCegarLoop]: 200 mSDtfsCounter, 53 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2023-12-23 06:51:03,250 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 393 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2023-12-23 06:51:03,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 221 states.
[2023-12-23 06:51:03,269 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 218.
[2023-12-23 06:51:03,269 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 218 states, 135 states have (on average 1.3037037037037038) internal successors, (176), 138 states have internal predecessors, (176), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 75 states have call predecessors, (78), 78 states have call successors, (78)
[2023-12-23 06:51:03,271 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 332 transitions.
[2023-12-23 06:51:03,271 INFO  L78                 Accepts]: Start accepts. Automaton has 218 states and 332 transitions. Word has length 347
[2023-12-23 06:51:03,272 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 06:51:03,272 INFO  L495      AbstractCegarLoop]: Abstraction has 218 states and 332 transitions.
[2023-12-23 06:51:03,272 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58)
[2023-12-23 06:51:03,272 INFO  L276                IsEmpty]: Start isEmpty. Operand 218 states and 332 transitions.
[2023-12-23 06:51:03,274 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 348
[2023-12-23 06:51:03,274 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 06:51:03,274 INFO  L195           NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:51:03,308 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 06:51:03,475 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 06:51:03,476 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 06:51:03,480 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 06:51:03,481 INFO  L85        PathProgramCache]: Analyzing trace with hash 1622830987, now seen corresponding path program 1 times
[2023-12-23 06:51:03,481 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 06:51:03,481 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969316046]
[2023-12-23 06:51:03,482 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 06:51:03,482 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 06:51:03,482 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 06:51:03,484 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 06:51:03,513 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 06:51:04,283 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 06:51:04,309 INFO  L262         TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-23 06:51:04,318 INFO  L285         TraceCheckSpWp]: Computing forward predicates...