/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-100_file-17.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 23:51:00,551 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 23:51:00,605 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 23:51:00,608 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 23:51:00,608 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 23:51:00,633 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 23:51:00,634 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 23:51:00,634 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 23:51:00,634 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 23:51:00,634 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 23:51:00,635 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 23:51:00,635 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 23:51:00,635 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 23:51:00,635 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 23:51:00,636 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 23:51:00,636 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 23:51:00,636 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 23:51:00,636 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 23:51:00,637 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 23:51:00,637 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 23:51:00,637 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 23:51:00,640 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 23:51:00,640 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 23:51:00,640 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 23:51:00,643 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 23:51:00,643 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 23:51:00,643 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 23:51:00,644 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 23:51:00,644 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 23:51:00,645 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 23:51:00,645 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 23:51:00,645 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 23:51:00,646 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 23:51:00,646 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 23:51:00,646 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 23:51:00,646 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 23:51:00,646 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 23:51:00,646 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 23:51:00,646 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 23:51:00,646 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 23:51:00,647 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 23:51:00,647 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 23:51:00,647 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 23:51:00,648 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 23:51:00,648 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 23:51:00,648 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 23:51:00,648 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 23:51:00,855 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 23:51:00,884 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 23:51:00,886 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 23:51:00,887 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 23:51:00,887 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 23:51:00,889 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-17.i
[2023-12-22 23:51:01,922 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 23:51:02,139 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 23:51:02,140 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-17.i
[2023-12-22 23:51:02,148 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bc37573d/fc4e0fcb8cdb4444bba4177cfa9d5ddb/FLAG80a7b4142
[2023-12-22 23:51:02,509 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bc37573d/fc4e0fcb8cdb4444bba4177cfa9d5ddb
[2023-12-22 23:51:02,510 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 23:51:02,511 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 23:51:02,512 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 23:51:02,512 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 23:51:02,522 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 23:51:02,522 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,523 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456e34f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02, skipping insertion in model container
[2023-12-22 23:51:02,523 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,570 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 23:51:02,702 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-100_file-17.i[916,929]
[2023-12-22 23:51:02,797 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 23:51:02,809 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 23:51:02,817 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-100_file-17.i[916,929]
[2023-12-22 23:51:02,850 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 23:51:02,863 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 23:51:02,863 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02 WrapperNode
[2023-12-22 23:51:02,863 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 23:51:02,864 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 23:51:02,864 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 23:51:02,864 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 23:51:02,869 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,883 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,913 INFO  L138                Inliner]: procedures = 27, calls = 72, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 329
[2023-12-22 23:51:02,913 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 23:51:02,914 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 23:51:02,914 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 23:51:02,914 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 23:51:02,923 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,923 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,929 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,965 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].
[2023-12-22 23:51:02,966 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,966 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,991 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,994 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,996 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:02,998 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:03,052 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 23:51:03,053 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 23:51:03,053 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 23:51:03,053 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 23:51:03,054 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (1/1) ...
[2023-12-22 23:51:03,061 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 23:51:03,069 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 23:51:03,110 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)
[2023-12-22 23:51:03,140 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
[2023-12-22 23:51:03,160 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 23:51:03,160 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 23:51:03,160 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 23:51:03,161 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 23:51:03,161 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 23:51:03,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 23:51:03,244 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 23:51:03,246 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 23:51:12,363 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 23:51:12,410 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 23:51:12,410 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 23:51:12,411 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:51:12 BoogieIcfgContainer
[2023-12-22 23:51:12,411 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 23:51:12,412 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 23:51:12,413 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 23:51:12,414 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 23:51:12,415 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:51:02" (1/3) ...
[2023-12-22 23:51:12,415 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140a42cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:51:12, skipping insertion in model container
[2023-12-22 23:51:12,415 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:51:02" (2/3) ...
[2023-12-22 23:51:12,415 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140a42cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:51:12, skipping insertion in model container
[2023-12-22 23:51:12,415 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:51:12" (3/3) ...
[2023-12-22 23:51:12,416 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-17.i
[2023-12-22 23:51:12,430 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 23:51:12,430 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 23:51:12,471 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 23:51:12,475 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;@5f1ffc39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 23:51:12,475 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 23:51:12,482 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 144 states, 82 states have (on average 1.4390243902439024) internal successors, (118), 83 states have internal predecessors, (118), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59)
[2023-12-22 23:51:12,501 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 358
[2023-12-22 23:51:12,502 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:51:12,502 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:51:12,503 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:51:12,507 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:51:12,507 INFO  L85        PathProgramCache]: Analyzing trace with hash 568789785, now seen corresponding path program 1 times
[2023-12-22 23:51:12,517 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:51:12,518 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719090193]
[2023-12-22 23:51:12,518 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:51:12,518 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
[2023-12-22 23:51:12,518 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:51:12,524 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)
[2023-12-22 23:51:12,525 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
[2023-12-22 23:51:12,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:51:12,864 INFO  L262         TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 23:51:12,880 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:51:12,985 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 2324 proven. 0 refuted. 0 times theorem prover too weak. 4520 trivial. 0 not checked.
[2023-12-22 23:51:12,985 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:51:12,986 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:51:12,991 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719090193]
[2023-12-22 23:51:12,992 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719090193] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:51:12,992 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 23:51:12,992 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 23:51:12,994 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479784973]
[2023-12-22 23:51:12,996 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:51:13,006 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 23:51:13,007 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:51:13,036 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 23:51:13,037 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 23:51:13,040 INFO  L87              Difference]: Start difference. First operand  has 144 states, 82 states have (on average 1.4390243902439024) internal successors, (118), 83 states have internal predecessors, (118), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand  has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59)
[2023-12-22 23:51:13,257 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:51:13,257 INFO  L93              Difference]: Finished difference Result 285 states and 529 transitions.
[2023-12-22 23:51:13,267 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 23:51:13,268 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 357
[2023-12-22 23:51:13,269 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:51:13,274 INFO  L225             Difference]: With dead ends: 285
[2023-12-22 23:51:13,274 INFO  L226             Difference]: Without dead ends: 142
[2023-12-22 23:51:13,278 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 23:51:13,280 INFO  L413           NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-22 23:51:13,280 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-22 23:51:13,291 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 142 states.
[2023-12-22 23:51:13,313 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142.
[2023-12-22 23:51:13,315 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 142 states, 81 states have (on average 1.3950617283950617) internal successors, (113), 81 states have internal predecessors, (113), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59)
[2023-12-22 23:51:13,317 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 231 transitions.
[2023-12-22 23:51:13,318 INFO  L78                 Accepts]: Start accepts. Automaton has 142 states and 231 transitions. Word has length 357
[2023-12-22 23:51:13,318 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:51:13,319 INFO  L495      AbstractCegarLoop]: Abstraction has 142 states and 231 transitions.
[2023-12-22 23:51:13,319 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59)
[2023-12-22 23:51:13,319 INFO  L276                IsEmpty]: Start isEmpty. Operand 142 states and 231 transitions.
[2023-12-22 23:51:13,324 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 358
[2023-12-22 23:51:13,324 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:51:13,324 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:51:13,353 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
[2023-12-22 23:51:13,548 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
[2023-12-22 23:51:13,549 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:51:13,550 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:51:13,550 INFO  L85        PathProgramCache]: Analyzing trace with hash -2014835177, now seen corresponding path program 1 times
[2023-12-22 23:51:13,551 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:51:13,551 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648618010]
[2023-12-22 23:51:13,551 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:51:13,551 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
[2023-12-22 23:51:13,551 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:51:13,552 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)
[2023-12-22 23:51:13,554 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
[2023-12-22 23:51:13,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:51:13,938 INFO  L262         TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-22 23:51:13,950 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:51:15,308 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 3018 proven. 54 refuted. 0 times theorem prover too weak. 3772 trivial. 0 not checked.
[2023-12-22 23:51:15,309 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 23:51:17,019 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:51:17,019 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648618010]
[2023-12-22 23:51:17,019 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648618010] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-22 23:51:17,020 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [6834378]
[2023-12-22 23:51:17,020 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:51:17,020 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-22 23:51:17,020 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-22 23:51:17,070 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-22 23:51:17,077 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2023-12-22 23:51:17,690 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:51:17,722 INFO  L262         TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-22 23:51:17,727 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:51:17,817 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked.
[2023-12-22 23:51:17,818 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:51:17,818 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [6834378] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:51:17,818 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-22 23:51:17,818 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7
[2023-12-22 23:51:17,819 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561454997]
[2023-12-22 23:51:17,819 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:51:17,820 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-22 23:51:17,820 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:51:17,821 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-22 23:51:17,821 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2023-12-22 23:51:17,821 INFO  L87              Difference]: Start difference. First operand 142 states and 231 transitions. Second operand  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59)
[2023-12-22 23:51:18,505 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:51:18,510 INFO  L93              Difference]: Finished difference Result 370 states and 602 transitions.
[2023-12-22 23:51:18,517 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-22 23:51:18,517 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 357
[2023-12-22 23:51:18,519 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:51:18,521 INFO  L225             Difference]: With dead ends: 370
[2023-12-22 23:51:18,521 INFO  L226             Difference]: Without dead ends: 229
[2023-12-22 23:51:18,522 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 834 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2023-12-22 23:51:18,523 INFO  L413           NwaCegarLoop]: 229 mSDtfsCounter, 131 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-22 23:51:18,523 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 446 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-22 23:51:18,524 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 229 states.
[2023-12-22 23:51:18,563 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226.
[2023-12-22 23:51:18,580 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 226 states, 136 states have (on average 1.4191176470588236) internal successors, (193), 137 states have internal predecessors, (193), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87)
[2023-12-22 23:51:18,585 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 367 transitions.
[2023-12-22 23:51:18,586 INFO  L78                 Accepts]: Start accepts. Automaton has 226 states and 367 transitions. Word has length 357
[2023-12-22 23:51:18,591 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:51:18,592 INFO  L495      AbstractCegarLoop]: Abstraction has 226 states and 367 transitions.
[2023-12-22 23:51:18,592 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59)
[2023-12-22 23:51:18,592 INFO  L276                IsEmpty]: Start isEmpty. Operand 226 states and 367 transitions.
[2023-12-22 23:51:18,595 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 358
[2023-12-22 23:51:18,595 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:51:18,595 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:51:18,614 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2023-12-22 23:51:18,824 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
[2023-12-22 23:51:19,027 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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
[2023-12-22 23:51:19,028 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:51:19,029 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:51:19,029 INFO  L85        PathProgramCache]: Analyzing trace with hash 1259063765, now seen corresponding path program 1 times
[2023-12-22 23:51:19,030 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:51:19,030 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672656768]
[2023-12-22 23:51:19,030 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:51:19,030 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
[2023-12-22 23:51:19,030 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:51:19,032 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)
[2023-12-22 23:51:19,034 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
[2023-12-22 23:51:19,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:51:19,353 INFO  L262         TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-22 23:51:19,358 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:51:20,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 3018 proven. 54 refuted. 0 times theorem prover too weak. 3772 trivial. 0 not checked.
[2023-12-22 23:51:20,414 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 23:51:21,939 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:51:21,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672656768]
[2023-12-22 23:51:21,940 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672656768] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-22 23:51:21,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1382012841]
[2023-12-22 23:51:21,940 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:51:21,940 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-22 23:51:21,940 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-22 23:51:21,941 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-22 23:51:21,943 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2023-12-22 23:51:23,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:51:23,802 INFO  L262         TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-22 23:51:23,807 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:51:24,769 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked.
[2023-12-22 23:51:24,770 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:51:24,770 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1382012841] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:51:24,770 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-22 23:51:24,770 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8
[2023-12-22 23:51:24,770 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495915939]
[2023-12-22 23:51:24,770 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:51:24,771 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-22 23:51:24,771 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:51:24,772 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-22 23:51:24,772 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2023-12-22 23:51:24,772 INFO  L87              Difference]: Start difference. First operand 226 states and 367 transitions. Second operand  has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59)
[2023-12-22 23:51:26,010 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:51:26,010 INFO  L93              Difference]: Finished difference Result 634 states and 1029 transitions.
[2023-12-22 23:51:26,023 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-22 23:51:26,024 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 357
[2023-12-22 23:51:26,025 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:51:26,030 INFO  L225             Difference]: With dead ends: 634
[2023-12-22 23:51:26,030 INFO  L226             Difference]: Without dead ends: 409
[2023-12-22 23:51:26,031 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 843 GetRequests, 832 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156
[2023-12-22 23:51:26,032 INFO  L413           NwaCegarLoop]: 224 mSDtfsCounter, 144 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-12-22 23:51:26,033 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 772 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-12-22 23:51:26,034 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 409 states.
[2023-12-22 23:51:26,082 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 375.
[2023-12-22 23:51:26,083 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 375 states, 224 states have (on average 1.4107142857142858) internal successors, (316), 225 states have internal predecessors, (316), 146 states have call successors, (146), 4 states have call predecessors, (146), 4 states have return successors, (146), 145 states have call predecessors, (146), 146 states have call successors, (146)
[2023-12-22 23:51:26,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 608 transitions.
[2023-12-22 23:51:26,086 INFO  L78                 Accepts]: Start accepts. Automaton has 375 states and 608 transitions. Word has length 357
[2023-12-22 23:51:26,087 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:51:26,087 INFO  L495      AbstractCegarLoop]: Abstraction has 375 states and 608 transitions.
[2023-12-22 23:51:26,088 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59)
[2023-12-22 23:51:26,088 INFO  L276                IsEmpty]: Start isEmpty. Operand 375 states and 608 transitions.
[2023-12-22 23:51:26,092 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 359
[2023-12-22 23:51:26,092 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:51:26,092 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:51:26,103 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
[2023-12-22 23:51:26,315 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0
[2023-12-22 23:51:26,514 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-22 23:51:26,514 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:51:26,515 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:51:26,515 INFO  L85        PathProgramCache]: Analyzing trace with hash 884707627, now seen corresponding path program 1 times
[2023-12-22 23:51:26,516 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:51:26,516 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748718938]
[2023-12-22 23:51:26,516 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:51:26,516 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
[2023-12-22 23:51:26,516 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:51:26,519 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)
[2023-12-22 23:51:26,545 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
[2023-12-22 23:51:26,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:51:26,848 INFO  L262         TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-22 23:51:26,853 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:51:28,446 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 3018 proven. 54 refuted. 0 times theorem prover too weak. 3772 trivial. 0 not checked.
[2023-12-22 23:51:28,446 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 23:51:30,441 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:51:30,441 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748718938]
[2023-12-22 23:51:30,441 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748718938] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-22 23:51:30,441 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1489875268]
[2023-12-22 23:51:30,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:51:30,441 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-22 23:51:30,442 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-22 23:51:30,452 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-22 23:51:30,456 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process
[2023-12-22 23:51:32,433 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:51:32,471 INFO  L262         TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-22 23:51:32,476 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:51:33,760 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 3018 proven. 54 refuted. 0 times theorem prover too weak. 3772 trivial. 0 not checked.
[2023-12-22 23:51:33,760 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 23:51:35,124 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1489875268] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-22 23:51:35,124 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 23:51:35,124 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2023-12-22 23:51:35,124 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229754608]
[2023-12-22 23:51:35,124 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 23:51:35,125 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-22 23:51:35,125 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:51:35,126 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-22 23:51:35,126 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2023-12-22 23:51:35,126 INFO  L87              Difference]: Start difference. First operand 375 states and 608 transitions. Second operand  has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59)
[2023-12-22 23:51:36,981 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:51:36,982 INFO  L93              Difference]: Finished difference Result 778 states and 1244 transitions.
[2023-12-22 23:51:36,986 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-22 23:51:36,986 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 358
[2023-12-22 23:51:36,989 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:51:36,993 INFO  L225             Difference]: With dead ends: 778
[2023-12-22 23:51:36,993 INFO  L226             Difference]: Without dead ends: 544
[2023-12-22 23:51:36,994 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 978 GetRequests, 968 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132
[2023-12-22 23:51:36,997 INFO  L413           NwaCegarLoop]: 160 mSDtfsCounter, 192 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-12-22 23:51:36,998 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 577 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-12-22 23:51:37,001 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 544 states.
[2023-12-22 23:51:37,032 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 534.
[2023-12-22 23:51:37,033 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 534 states, 320 states have (on average 1.384375) internal successors, (443), 321 states have internal predecessors, (443), 205 states have call successors, (205), 8 states have call predecessors, (205), 8 states have return successors, (205), 204 states have call predecessors, (205), 205 states have call successors, (205)
[2023-12-22 23:51:37,036 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 853 transitions.
[2023-12-22 23:51:37,036 INFO  L78                 Accepts]: Start accepts. Automaton has 534 states and 853 transitions. Word has length 358
[2023-12-22 23:51:37,037 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:51:37,037 INFO  L495      AbstractCegarLoop]: Abstraction has 534 states and 853 transitions.
[2023-12-22 23:51:37,037 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59)
[2023-12-22 23:51:37,037 INFO  L276                IsEmpty]: Start isEmpty. Operand 534 states and 853 transitions.
[2023-12-22 23:51:37,039 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 359
[2023-12-22 23:51:37,039 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:51:37,040 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 23:51:37,051 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 (7)] Forceful destruction successful, exit code 0
[2023-12-22 23:51:37,270 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0
[2023-12-22 23:51:37,467 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-22 23:51:37,468 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:51:37,468 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:51:37,469 INFO  L85        PathProgramCache]: Analyzing trace with hash -804236115, now seen corresponding path program 1 times
[2023-12-22 23:51:37,469 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:51:37,469 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141209396]
[2023-12-22 23:51:37,469 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:51:37,469 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
[2023-12-22 23:51:37,469 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:51:37,470 INFO  L229       MonitoredProcess]: Starting monitored process 9 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)
[2023-12-22 23:51:37,472 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 (9)] Waiting until timeout for monitored process
[2023-12-22 23:51:37,811 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:51:37,828 INFO  L262         TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 28 conjunts are in the unsatisfiable core
[2023-12-22 23:51:37,835 INFO  L285         TraceCheckSpWp]: Computing forward predicates...