/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-250_file-31.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 02:16:54,001 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 02:16:54,081 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 02:16:54,088 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 02:16:54,088 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 02:16:54,116 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 02:16:54,116 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 02:16:54,117 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 02:16:54,117 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 02:16:54,121 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 02:16:54,121 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 02:16:54,122 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 02:16:54,122 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 02:16:54,123 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 02:16:54,123 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 02:16:54,124 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 02:16:54,124 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 02:16:54,124 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 02:16:54,125 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 02:16:54,125 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 02:16:54,125 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 02:16:54,125 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 02:16:54,126 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 02:16:54,126 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 02:16:54,126 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 02:16:54,126 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 02:16:54,127 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 02:16:54,127 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 02:16:54,127 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 02:16:54,127 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 02:16:54,128 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 02:16:54,128 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 02:16:54,128 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 02:16:54,129 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 02:16:54,129 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 02:16:54,129 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 02:16:54,129 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 02:16:54,129 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 02:16:54,129 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 02:16:54,130 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 02:16:54,130 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 02:16:54,130 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 02:16:54,130 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 02:16:54,130 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 02:16:54,131 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 02:16:54,131 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 02:16:54,131 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 02:16:54,348 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 02:16:54,374 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 02:16:54,376 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 02:16:54,377 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 02:16:54,377 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 02:16:54,378 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-31.i
[2023-12-23 02:16:55,496 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 02:16:55,740 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 02:16:55,740 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-31.i
[2023-12-23 02:16:55,752 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0845bfe2c/fad5d823b68b4c7f89950e959d62ee15/FLAG1a2985cde
[2023-12-23 02:16:55,763 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0845bfe2c/fad5d823b68b4c7f89950e959d62ee15
[2023-12-23 02:16:55,765 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 02:16:55,766 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 02:16:55,767 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 02:16:55,767 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 02:16:55,771 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 02:16:55,771 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:16:55" (1/1) ...
[2023-12-23 02:16:55,772 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e34578c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:55, skipping insertion in model container
[2023-12-23 02:16:55,772 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:16:55" (1/1) ...
[2023-12-23 02:16:55,820 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 02:16:55,948 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-250_file-31.i[916,929]
[2023-12-23 02:16:56,051 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 02:16:56,066 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 02:16:56,076 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-250_file-31.i[916,929]
[2023-12-23 02:16:56,167 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 02:16:56,191 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 02:16:56,191 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56 WrapperNode
[2023-12-23 02:16:56,191 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 02:16:56,194 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 02:16:56,194 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 02:16:56,194 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 02:16:56,200 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,229 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,270 INFO  L138                Inliner]: procedures = 27, calls = 83, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 427
[2023-12-23 02:16:56,270 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 02:16:56,271 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 02:16:56,271 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 02:16:56,271 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 02:16:56,282 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,282 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,288 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,306 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 02:16:56,307 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,307 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,335 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,339 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,357 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,360 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,376 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 02:16:56,376 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 02:16:56,377 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 02:16:56,377 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 02:16:56,377 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (1/1) ...
[2023-12-23 02:16:56,383 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 02:16:56,392 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 02:16:56,405 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 02:16:56,430 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 02:16:56,443 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 02:16:56,443 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 02:16:56,443 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 02:16:56,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 02:16:56,445 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 02:16:56,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 02:16:56,576 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 02:16:56,578 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 02:17:23,806 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 02:17:23,848 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 02:17:23,848 INFO  L309             CfgBuilder]: Removed 2 assume(true) statements.
[2023-12-23 02:17:23,848 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:17:23 BoogieIcfgContainer
[2023-12-23 02:17:23,848 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 02:17:23,850 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 02:17:23,851 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 02:17:23,853 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 02:17:23,854 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:16:55" (1/3) ...
[2023-12-23 02:17:23,854 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346ae0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:17:23, skipping insertion in model container
[2023-12-23 02:17:23,854 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:16:56" (2/3) ...
[2023-12-23 02:17:23,855 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346ae0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:17:23, skipping insertion in model container
[2023-12-23 02:17:23,855 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:17:23" (3/3) ...
[2023-12-23 02:17:23,856 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-31.i
[2023-12-23 02:17:23,870 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 02:17:23,871 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 02:17:23,909 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 02:17:23,914 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;@6c62591, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 02:17:23,914 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 02:17:23,920 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 186 states, 113 states have (on average 1.5575221238938053) internal successors, (176), 114 states have internal predecessors, (176), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 02:17:23,944 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 434
[2023-12-23 02:17:23,944 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:17:23,945 INFO  L195           NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:17:23,946 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:17:23,952 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:17:23,952 INFO  L85        PathProgramCache]: Analyzing trace with hash -3679056, now seen corresponding path program 1 times
[2023-12-23 02:17:23,967 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:17:23,967 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030672806]
[2023-12-23 02:17:23,967 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:17:23,968 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 02:17:23,968 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:17:23,974 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 02:17:24,013 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 02:17:24,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:17:24,812 INFO  L262         TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 02:17:24,851 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:17:24,952 INFO  L134       CoverageAnalysis]: Checked inductivity of 9660 backedges. 4874 proven. 0 refuted. 0 times theorem prover too weak. 4786 trivial. 0 not checked.
[2023-12-23 02:17:24,952 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 02:17:24,953 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:17:24,953 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030672806]
[2023-12-23 02:17:24,954 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030672806] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 02:17:24,954 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 02:17:24,954 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 02:17:24,955 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435429952]
[2023-12-23 02:17:24,957 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 02:17:24,964 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 02:17:24,964 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:17:25,002 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 02:17:25,002 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 02:17:25,006 INFO  L87              Difference]: Start difference. First operand  has 186 states, 113 states have (on average 1.5575221238938053) internal successors, (176), 114 states have internal predecessors, (176), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) Second operand  has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70)
[2023-12-23 02:17:25,109 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:17:25,109 INFO  L93              Difference]: Finished difference Result 369 states and 700 transitions.
[2023-12-23 02:17:25,112 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 02:17:25,114 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 433
[2023-12-23 02:17:25,114 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:17:25,125 INFO  L225             Difference]: With dead ends: 369
[2023-12-23 02:17:25,125 INFO  L226             Difference]: Without dead ends: 184
[2023-12-23 02:17:25,135 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 432 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 02:17:25,138 INFO  L413           NwaCegarLoop]: 306 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, 306 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
[2023-12-23 02:17:25,139 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 02:17:25,154 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 184 states.
[2023-12-23 02:17:25,208 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184.
[2023-12-23 02:17:25,211 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 184 states, 112 states have (on average 1.5089285714285714) internal successors, (169), 112 states have internal predecessors, (169), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 02:17:25,222 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 309 transitions.
[2023-12-23 02:17:25,224 INFO  L78                 Accepts]: Start accepts. Automaton has 184 states and 309 transitions. Word has length 433
[2023-12-23 02:17:25,225 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:17:25,225 INFO  L495      AbstractCegarLoop]: Abstraction has 184 states and 309 transitions.
[2023-12-23 02:17:25,225 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70)
[2023-12-23 02:17:25,226 INFO  L276                IsEmpty]: Start isEmpty. Operand 184 states and 309 transitions.
[2023-12-23 02:17:25,236 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 434
[2023-12-23 02:17:25,237 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:17:25,237 INFO  L195           NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:17:25,260 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-23 02:17:25,460 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 02:17:25,461 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:17:25,461 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:17:25,462 INFO  L85        PathProgramCache]: Analyzing trace with hash -604205464, now seen corresponding path program 1 times
[2023-12-23 02:17:25,463 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:17:25,463 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10248223]
[2023-12-23 02:17:25,463 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:17:25,463 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 02:17:25,464 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:17:25,465 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 02:17:25,471 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 02:17:26,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:17:26,194 INFO  L262         TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 02:17:26,203 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:17:31,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 9660 backedges. 4843 proven. 114 refuted. 0 times theorem prover too weak. 4703 trivial. 0 not checked.
[2023-12-23 02:17:31,274 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 02:17:33,810 INFO  L134       CoverageAnalysis]: Checked inductivity of 9660 backedges. 93 proven. 114 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked.
[2023-12-23 02:17:33,810 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:17:33,810 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10248223]
[2023-12-23 02:17:33,810 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [10248223] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 02:17:33,811 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 02:17:33,811 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 02:17:33,811 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451343600]
[2023-12-23 02:17:33,811 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 02:17:33,816 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 02:17:33,816 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:17:33,819 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 02:17:33,819 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 02:17:33,820 INFO  L87              Difference]: Start difference. First operand 184 states and 309 transitions. Second operand  has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (108), 2 states have call predecessors, (108), 4 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109)
[2023-12-23 02:17:38,126 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:17:38,127 INFO  L93              Difference]: Finished difference Result 370 states and 614 transitions.
[2023-12-23 02:17:38,129 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 02:17:38,130 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (108), 2 states have call predecessors, (108), 4 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 433
[2023-12-23 02:17:38,131 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:17:38,133 INFO  L225             Difference]: With dead ends: 370
[2023-12-23 02:17:38,133 INFO  L226             Difference]: Without dead ends: 187
[2023-12-23 02:17:38,134 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 858 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 02:17:38,135 INFO  L413           NwaCegarLoop]: 211 mSDtfsCounter, 333 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2023-12-23 02:17:38,136 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 491 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2023-12-23 02:17:38,137 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 187 states.
[2023-12-23 02:17:38,160 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183.
[2023-12-23 02:17:38,161 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 183 states, 110 states have (on average 1.4272727272727272) internal successors, (157), 110 states have internal predecessors, (157), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 02:17:38,162 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 297 transitions.
[2023-12-23 02:17:38,163 INFO  L78                 Accepts]: Start accepts. Automaton has 183 states and 297 transitions. Word has length 433
[2023-12-23 02:17:38,164 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:17:38,164 INFO  L495      AbstractCegarLoop]: Abstraction has 183 states and 297 transitions.
[2023-12-23 02:17:38,165 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (108), 2 states have call predecessors, (108), 4 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109)
[2023-12-23 02:17:38,165 INFO  L276                IsEmpty]: Start isEmpty. Operand 183 states and 297 transitions.
[2023-12-23 02:17:38,171 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 434
[2023-12-23 02:17:38,171 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:17:38,171 INFO  L195           NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:17:38,198 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 02:17:38,385 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 02:17:38,385 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:17:38,386 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:17:38,386 INFO  L85        PathProgramCache]: Analyzing trace with hash 859972520, now seen corresponding path program 1 times
[2023-12-23 02:17:38,387 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:17:38,387 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625765681]
[2023-12-23 02:17:38,387 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:17:38,388 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 02:17:38,388 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:17:38,389 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 02:17:38,397 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 02:17:39,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:17:39,076 INFO  L262         TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 02:17:39,084 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:17:44,182 INFO  L134       CoverageAnalysis]: Checked inductivity of 9660 backedges. 4659 proven. 126 refuted. 0 times theorem prover too weak. 4875 trivial. 0 not checked.
[2023-12-23 02:17:44,182 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 02:17:46,590 INFO  L134       CoverageAnalysis]: Checked inductivity of 9660 backedges. 81 proven. 126 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked.
[2023-12-23 02:17:46,591 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:17:46,591 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625765681]
[2023-12-23 02:17:46,591 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625765681] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 02:17:46,591 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 02:17:46,591 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 02:17:46,592 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829547184]
[2023-12-23 02:17:46,592 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 02:17:46,593 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 02:17:46,593 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:17:46,594 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 02:17:46,594 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 02:17:46,594 INFO  L87              Difference]: Start difference. First operand 183 states and 297 transitions. Second operand  has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (112), 2 states have call predecessors, (112), 4 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113)
[2023-12-23 02:17:50,770 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:17:50,770 INFO  L93              Difference]: Finished difference Result 374 states and 600 transitions.
[2023-12-23 02:17:50,772 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 02:17:50,773 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (112), 2 states have call predecessors, (112), 4 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) Word has length 433
[2023-12-23 02:17:50,774 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:17:50,776 INFO  L225             Difference]: With dead ends: 374
[2023-12-23 02:17:50,776 INFO  L226             Difference]: Without dead ends: 192
[2023-12-23 02:17:50,777 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 858 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 02:17:50,778 INFO  L413           NwaCegarLoop]: 207 mSDtfsCounter, 249 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-12-23 02:17:50,778 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 478 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-12-23 02:17:50,779 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 192 states.
[2023-12-23 02:17:50,809 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 186.
[2023-12-23 02:17:50,810 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 186 states, 112 states have (on average 1.375) internal successors, (154), 112 states have internal predecessors, (154), 70 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 02:17:50,811 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 294 transitions.
[2023-12-23 02:17:50,811 INFO  L78                 Accepts]: Start accepts. Automaton has 186 states and 294 transitions. Word has length 433
[2023-12-23 02:17:50,812 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:17:50,812 INFO  L495      AbstractCegarLoop]: Abstraction has 186 states and 294 transitions.
[2023-12-23 02:17:50,813 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (112), 2 states have call predecessors, (112), 4 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113)
[2023-12-23 02:17:50,813 INFO  L276                IsEmpty]: Start isEmpty. Operand 186 states and 294 transitions.
[2023-12-23 02:17:50,815 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 434
[2023-12-23 02:17:50,816 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:17:50,816 INFO  L195           NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:17:50,840 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 02:17:51,016 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 02:17:51,017 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:17:51,018 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:17:51,018 INFO  L85        PathProgramCache]: Analyzing trace with hash 281708716, now seen corresponding path program 1 times
[2023-12-23 02:17:51,019 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:17:51,019 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885410614]
[2023-12-23 02:17:51,019 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:17:51,019 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 02:17:51,019 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:17:51,020 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 02:17:51,023 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 02:17:51,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:17:51,737 INFO  L262         TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 02:17:51,745 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:18:08,596 INFO  L134       CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked.
[2023-12-23 02:18:08,597 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 02:18:08,597 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:18:08,597 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885410614]
[2023-12-23 02:18:08,597 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885410614] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 02:18:08,597 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 02:18:08,597 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 02:18:08,598 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387061093]
[2023-12-23 02:18:08,598 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 02:18:08,598 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 02:18:08,599 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:18:08,599 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 02:18:08,599 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 02:18:08,600 INFO  L87              Difference]: Start difference. First operand 186 states and 294 transitions. Second operand  has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70)
[2023-12-23 02:18:11,881 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:18:17,531 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:18:22,594 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:18:26,456 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:18:30,679 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:18:33,395 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 02:18:34,427 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:18:34,428 INFO  L93              Difference]: Finished difference Result 371 states and 587 transitions.
[2023-12-23 02:18:34,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 02:18:34,430 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 433
[2023-12-23 02:18:34,431 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:18:34,433 INFO  L225             Difference]: With dead ends: 371
[2023-12-23 02:18:34,433 INFO  L226             Difference]: Without dead ends: 186
[2023-12-23 02:18:34,434 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 431 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 02:18:34,434 INFO  L413           NwaCegarLoop]: 241 mSDtfsCounter, 79 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time
[2023-12-23 02:18:34,435 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 241 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 3 Unknown, 0 Unchecked, 25.8s Time]
[2023-12-23 02:18:34,436 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 186 states.
[2023-12-23 02:18:34,465 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186.
[2023-12-23 02:18:34,466 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 186 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 70 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-23 02:18:34,467 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 293 transitions.
[2023-12-23 02:18:34,468 INFO  L78                 Accepts]: Start accepts. Automaton has 186 states and 293 transitions. Word has length 433
[2023-12-23 02:18:34,473 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:18:34,474 INFO  L495      AbstractCegarLoop]: Abstraction has 186 states and 293 transitions.
[2023-12-23 02:18:34,474 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70)
[2023-12-23 02:18:34,474 INFO  L276                IsEmpty]: Start isEmpty. Operand 186 states and 293 transitions.
[2023-12-23 02:18:34,477 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 434
[2023-12-23 02:18:34,477 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:18:34,477 INFO  L195           NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:18:34,508 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-12-23 02:18:34,705 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:18:34,706 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:18:34,706 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:18:34,706 INFO  L85        PathProgramCache]: Analyzing trace with hash -1712435990, now seen corresponding path program 1 times
[2023-12-23 02:18:34,707 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:18:34,707 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935184151]
[2023-12-23 02:18:34,707 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:18:34,707 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 02:18:34,707 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:18:34,708 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 02:18:34,713 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-23 02:18:35,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:18:35,446 INFO  L262         TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 02:18:35,453 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 02:18:41,862 INFO  L134       CoverageAnalysis]: Checked inductivity of 9660 backedges. 4029 proven. 147 refuted. 0 times theorem prover too weak. 5484 trivial. 0 not checked.
[2023-12-23 02:18:41,862 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 02:18:45,011 INFO  L134       CoverageAnalysis]: Checked inductivity of 9660 backedges. 60 proven. 147 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked.
[2023-12-23 02:18:45,012 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 02:18:45,012 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935184151]
[2023-12-23 02:18:45,012 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [935184151] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 02:18:45,012 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 02:18:45,012 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-23 02:18:45,012 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447152878]
[2023-12-23 02:18:45,013 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 02:18:45,014 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 02:18:45,014 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 02:18:45,014 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 02:18:45,014 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-23 02:18:45,015 INFO  L87              Difference]: Start difference. First operand 186 states and 293 transitions. Second operand  has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (119), 2 states have call predecessors, (119), 4 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120)
[2023-12-23 02:18:54,162 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 02:18:54,162 INFO  L93              Difference]: Finished difference Result 609 states and 948 transitions.
[2023-12-23 02:18:54,163 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-23 02:18:54,163 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (119), 2 states have call predecessors, (119), 4 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) Word has length 433
[2023-12-23 02:18:54,164 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 02:18:54,167 INFO  L225             Difference]: With dead ends: 609
[2023-12-23 02:18:54,167 INFO  L226             Difference]: Without dead ends: 424
[2023-12-23 02:18:54,168 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 858 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2023-12-23 02:18:54,169 INFO  L413           NwaCegarLoop]: 266 mSDtfsCounter, 484 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time
[2023-12-23 02:18:54,169 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 798 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time]
[2023-12-23 02:18:54,170 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 424 states.
[2023-12-23 02:18:54,211 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 355.
[2023-12-23 02:18:54,212 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 355 states, 186 states have (on average 1.2365591397849462) internal successors, (230), 188 states have internal predecessors, (230), 160 states have call successors, (160), 8 states have call predecessors, (160), 8 states have return successors, (160), 158 states have call predecessors, (160), 160 states have call successors, (160)
[2023-12-23 02:18:54,214 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 550 transitions.
[2023-12-23 02:18:54,214 INFO  L78                 Accepts]: Start accepts. Automaton has 355 states and 550 transitions. Word has length 433
[2023-12-23 02:18:54,215 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 02:18:54,215 INFO  L495      AbstractCegarLoop]: Abstraction has 355 states and 550 transitions.
[2023-12-23 02:18:54,216 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (119), 2 states have call predecessors, (119), 4 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120)
[2023-12-23 02:18:54,216 INFO  L276                IsEmpty]: Start isEmpty. Operand 355 states and 550 transitions.
[2023-12-23 02:18:54,218 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 434
[2023-12-23 02:18:54,218 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 02:18:54,219 INFO  L195           NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:18:54,239 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-12-23 02:18:54,428 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 02:18:54,428 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 02:18:54,429 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 02:18:54,429 INFO  L85        PathProgramCache]: Analyzing trace with hash 62571372, now seen corresponding path program 1 times
[2023-12-23 02:18:54,430 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 02:18:54,430 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923083067]
[2023-12-23 02:18:54,430 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 02:18:54,430 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 02:18:54,430 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 02:18:54,431 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 02:18:54,432 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-12-23 02:18:56,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 02:18:56,334 INFO  L262         TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-23 02:18:56,344 INFO  L285         TraceCheckSpWp]: Computing forward predicates...