/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-25_file-27.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 03:25:15,992 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 03:25:16,052 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 03:25:16,056 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 03:25:16,056 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 03:25:16,074 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 03:25:16,074 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 03:25:16,074 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 03:25:16,075 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 03:25:16,075 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 03:25:16,075 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 03:25:16,075 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 03:25:16,076 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 03:25:16,083 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 03:25:16,083 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 03:25:16,084 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 03:25:16,084 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 03:25:16,085 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 03:25:16,085 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 03:25:16,085 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 03:25:16,086 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 03:25:16,086 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 03:25:16,086 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 03:25:16,087 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 03:25:16,087 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 03:25:16,087 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 03:25:16,087 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 03:25:16,087 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 03:25:16,087 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 03:25:16,087 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 03:25:16,088 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 03:25:16,088 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 03:25:16,088 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 03:25:16,088 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 03:25:16,089 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 03:25:16,089 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 03:25:16,089 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 03:25:16,089 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 03:25:16,089 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 03:25:16,089 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 03:25:16,089 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 03:25:16,090 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 03:25:16,090 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 03:25:16,090 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 03:25:16,091 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 03:25:16,091 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 03:25:16,091 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 03:25:16,267 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 03:25:16,284 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 03:25:16,287 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 03:25:16,288 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 03:25:16,288 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 03:25:16,290 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-27.i
[2023-12-23 03:25:17,436 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 03:25:17,592 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 03:25:17,592 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-27.i
[2023-12-23 03:25:17,599 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cece490a3/a2cabb91b19342f9a7c4f957a76f4541/FLAGa2bcc265c
[2023-12-23 03:25:17,617 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cece490a3/a2cabb91b19342f9a7c4f957a76f4541
[2023-12-23 03:25:17,620 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 03:25:17,621 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 03:25:17,622 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 03:25:17,622 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 03:25:17,627 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 03:25:17,627 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:17,628 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f00edcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17, skipping insertion in model container
[2023-12-23 03:25:17,628 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:17,658 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 03:25:17,760 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-25_file-27.i[915,928]
[2023-12-23 03:25:17,805 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 03:25:17,817 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 03:25:17,827 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-25_file-27.i[915,928]
[2023-12-23 03:25:17,860 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 03:25:17,873 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 03:25:17,873 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17 WrapperNode
[2023-12-23 03:25:17,873 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 03:25:17,874 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 03:25:17,874 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 03:25:17,874 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 03:25:17,878 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:17,887 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:17,912 INFO  L138                Inliner]: procedures = 27, calls = 50, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 215
[2023-12-23 03:25:17,912 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 03:25:17,913 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 03:25:17,913 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 03:25:17,913 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 03:25:17,941 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:17,941 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:17,944 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:17,983 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 03:25:17,983 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:17,983 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:18,007 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:18,010 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:18,012 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:18,014 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:18,016 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 03:25:18,017 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 03:25:18,017 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 03:25:18,017 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 03:25:18,018 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (1/1) ...
[2023-12-23 03:25:18,049 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 03:25:18,060 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 03:25:18,093 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 03:25:18,114 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 03:25:18,121 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 03:25:18,121 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 03:25:18,122 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 03:25:18,123 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 03:25:18,123 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 03:25:18,124 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 03:25:18,219 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 03:25:18,222 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 03:25:33,697 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 03:25:33,752 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 03:25:33,752 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 03:25:33,752 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:25:33 BoogieIcfgContainer
[2023-12-23 03:25:33,752 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 03:25:33,754 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 03:25:33,754 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 03:25:33,756 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 03:25:33,756 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:25:17" (1/3) ...
[2023-12-23 03:25:33,756 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755c4462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:25:33, skipping insertion in model container
[2023-12-23 03:25:33,756 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:25:17" (2/3) ...
[2023-12-23 03:25:33,757 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755c4462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:25:33, skipping insertion in model container
[2023-12-23 03:25:33,757 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:25:33" (3/3) ...
[2023-12-23 03:25:33,758 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-27.i
[2023-12-23 03:25:33,769 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 03:25:33,769 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 03:25:33,801 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 03:25:33,805 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;@1fa1c4d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 03:25:33,805 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 03:25:33,808 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 87 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 48 states have internal predecessors, (64), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2023-12-23 03:25:33,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 223
[2023-12-23 03:25:33,828 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 03:25:33,828 INFO  L195           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:33,829 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 03:25:33,833 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 03:25:33,833 INFO  L85        PathProgramCache]: Analyzing trace with hash 765848412, now seen corresponding path program 1 times
[2023-12-23 03:25:33,842 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 03:25:33,843 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726505052]
[2023-12-23 03:25:33,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:25:33,843 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 03:25:33,843 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 03:25:33,845 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 03:25:33,858 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 03:25:35,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:25:35,072 INFO  L262         TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 03:25:35,082 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 03:25:35,119 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 1044 proven. 0 refuted. 0 times theorem prover too weak. 1620 trivial. 0 not checked.
[2023-12-23 03:25:35,119 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 03:25:35,119 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 03:25:35,120 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726505052]
[2023-12-23 03:25:35,120 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [726505052] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 03:25:35,120 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 03:25:35,120 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 03:25:35,121 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340914359]
[2023-12-23 03:25:35,122 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 03:25:35,125 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 03:25:35,125 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 03:25:35,145 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 03:25:35,145 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 03:25:35,147 INFO  L87              Difference]: Start difference. First operand  has 87 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 48 states have internal predecessors, (64), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37)
[2023-12-23 03:25:39,343 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 03:25:39,344 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 03:25:39,344 INFO  L93              Difference]: Finished difference Result 171 states and 311 transitions.
[2023-12-23 03:25:39,401 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 03:25:39,402 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 222
[2023-12-23 03:25:39,403 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 03:25:39,408 INFO  L225             Difference]: With dead ends: 171
[2023-12-23 03:25:39,408 INFO  L226             Difference]: Without dead ends: 85
[2023-12-23 03:25:39,411 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 221 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 03:25:39,418 INFO  L413           NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2023-12-23 03:25:39,421 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time]
[2023-12-23 03:25:39,434 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85 states.
[2023-12-23 03:25:39,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85.
[2023-12-23 03:25:39,471 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 85 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 46 states have internal predecessors, (59), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2023-12-23 03:25:39,481 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 133 transitions.
[2023-12-23 03:25:39,483 INFO  L78                 Accepts]: Start accepts. Automaton has 85 states and 133 transitions. Word has length 222
[2023-12-23 03:25:39,483 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 03:25:39,484 INFO  L495      AbstractCegarLoop]: Abstraction has 85 states and 133 transitions.
[2023-12-23 03:25:39,484 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37)
[2023-12-23 03:25:39,484 INFO  L276                IsEmpty]: Start isEmpty. Operand 85 states and 133 transitions.
[2023-12-23 03:25:39,512 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 223
[2023-12-23 03:25:39,512 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 03:25:39,513 INFO  L195           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:39,549 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 03:25:39,732 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 03:25:39,733 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 03:25:39,733 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 03:25:39,733 INFO  L85        PathProgramCache]: Analyzing trace with hash -1693512370, now seen corresponding path program 1 times
[2023-12-23 03:25:39,734 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 03:25:39,734 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77720265]
[2023-12-23 03:25:39,734 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:25:39,734 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 03:25:39,735 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 03:25:39,737 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 03:25:39,738 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 03:25:40,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:25:40,967 INFO  L262         TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-23 03:25:40,974 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 03:25:43,420 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 1026 proven. 81 refuted. 0 times theorem prover too weak. 1557 trivial. 0 not checked.
[2023-12-23 03:25:43,420 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 03:25:43,724 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2023-12-23 03:25:43,725 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 03:25:43,725 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77720265]
[2023-12-23 03:25:43,725 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [77720265] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-23 03:25:43,725 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-23 03:25:43,725 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8
[2023-12-23 03:25:43,726 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159241969]
[2023-12-23 03:25:43,726 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 03:25:43,727 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 03:25:43,727 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 03:25:43,728 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 03:25:43,728 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-12-23 03:25:43,728 INFO  L87              Difference]: Start difference. First operand 85 states and 133 transitions. Second operand  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37)
[2023-12-23 03:25:48,905 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 03:25:48,908 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 03:25:48,909 INFO  L93              Difference]: Finished difference Result 173 states and 268 transitions.
[2023-12-23 03:25:48,961 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 03:25:48,962 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) Word has length 222
[2023-12-23 03:25:48,963 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 03:25:48,964 INFO  L225             Difference]: With dead ends: 173
[2023-12-23 03:25:48,964 INFO  L226             Difference]: Without dead ends: 89
[2023-12-23 03:25:48,965 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-12-23 03:25:48,966 INFO  L413           NwaCegarLoop]: 124 mSDtfsCounter, 48 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2023-12-23 03:25:48,966 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 205 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time]
[2023-12-23 03:25:48,967 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2023-12-23 03:25:48,976 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89.
[2023-12-23 03:25:48,976 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37)
[2023-12-23 03:25:48,977 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 135 transitions.
[2023-12-23 03:25:48,977 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 135 transitions. Word has length 222
[2023-12-23 03:25:48,978 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 03:25:48,978 INFO  L495      AbstractCegarLoop]: Abstraction has 89 states and 135 transitions.
[2023-12-23 03:25:48,978 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37)
[2023-12-23 03:25:48,978 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 135 transitions.
[2023-12-23 03:25:48,979 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 224
[2023-12-23 03:25:48,980 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 03:25:48,980 INFO  L195           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:49,006 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 03:25:49,201 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 03:25:49,202 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 03:25:49,202 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 03:25:49,202 INFO  L85        PathProgramCache]: Analyzing trace with hash -1175911595, now seen corresponding path program 1 times
[2023-12-23 03:25:49,203 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 03:25:49,203 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766698835]
[2023-12-23 03:25:49,203 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:25:49,203 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 03:25:49,203 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 03:25:49,205 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 03:25:49,205 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 03:25:50,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:25:50,322 INFO  L262         TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 03:25:50,326 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 03:25:53,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2023-12-23 03:25:53,159 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 03:25:53,159 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 03:25:53,159 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766698835]
[2023-12-23 03:25:53,159 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766698835] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 03:25:53,159 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 03:25:53,159 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 03:25:53,159 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702738292]
[2023-12-23 03:25:53,160 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 03:25:53,160 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 03:25:53,160 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 03:25:53,161 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 03:25:53,161 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 03:25:53,161 INFO  L87              Difference]: Start difference. First operand 89 states and 135 transitions. Second operand  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37)
[2023-12-23 03:25:57,545 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 03:25:57,671 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 03:25:57,671 INFO  L93              Difference]: Finished difference Result 265 states and 403 transitions.
[2023-12-23 03:25:57,700 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 03:25:57,700 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) Word has length 223
[2023-12-23 03:25:57,701 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 03:25:57,703 INFO  L225             Difference]: With dead ends: 265
[2023-12-23 03:25:57,703 INFO  L226             Difference]: Without dead ends: 177
[2023-12-23 03:25:57,708 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 03:25:57,709 INFO  L413           NwaCegarLoop]: 126 mSDtfsCounter, 17 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2023-12-23 03:25:57,709 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 247 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2023-12-23 03:25:57,710 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 177 states.
[2023-12-23 03:25:57,764 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 173.
[2023-12-23 03:25:57,765 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 173 states, 94 states have (on average 1.2127659574468086) internal successors, (114), 94 states have internal predecessors, (114), 74 states have call successors, (74), 4 states have call predecessors, (74), 4 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74)
[2023-12-23 03:25:57,770 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 262 transitions.
[2023-12-23 03:25:57,770 INFO  L78                 Accepts]: Start accepts. Automaton has 173 states and 262 transitions. Word has length 223
[2023-12-23 03:25:57,772 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 03:25:57,772 INFO  L495      AbstractCegarLoop]: Abstraction has 173 states and 262 transitions.
[2023-12-23 03:25:57,772 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37)
[2023-12-23 03:25:57,772 INFO  L276                IsEmpty]: Start isEmpty. Operand 173 states and 262 transitions.
[2023-12-23 03:25:57,782 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 225
[2023-12-23 03:25:57,782 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 03:25:57,782 INFO  L195           NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:57,821 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 03:25:58,001 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 03:25:58,002 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 03:25:58,002 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 03:25:58,002 INFO  L85        PathProgramCache]: Analyzing trace with hash 1953475642, now seen corresponding path program 1 times
[2023-12-23 03:25:58,003 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 03:25:58,003 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467151001]
[2023-12-23 03:25:58,003 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:25:58,003 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 03:25:58,003 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 03:25:58,007 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 03:25:58,009 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 03:25:59,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:25:59,084 INFO  L262         TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-23 03:25:59,088 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 03:26:10,249 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 46 proven. 928 refuted. 0 times theorem prover too weak. 1690 trivial. 0 not checked.
[2023-12-23 03:26:10,249 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 03:26:11,635 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 03:26:11,635 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467151001]
[2023-12-23 03:26:11,635 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467151001] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 03:26:11,635 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1160964513]
[2023-12-23 03:26:11,635 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 03:26:11,636 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 03:26:11,636 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 03:26:11,637 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)
[2023-12-23 03:26:11,655 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2023-12-23 03:26:14,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 03:26:14,710 INFO  L262         TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 34 conjunts are in the unsatisfiable core
[2023-12-23 03:26:14,715 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 03:27:47,056 WARN  L293               SmtUtils]: Spent 17.16s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2023-12-23 03:29:03,936 WARN  L293               SmtUtils]: Spent 23.29s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2023-12-23 03:31:02,644 WARN  L293               SmtUtils]: Spent 29.95s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2023-12-23 03:32:38,829 WARN  L293               SmtUtils]: Spent 27.68s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2023-12-23 03:34:14,793 WARN  L293               SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2023-12-23 03:34:28,178 WARN  L293               SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2023-12-23 03:34:37,689 WARN  L293               SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2023-12-23 03:34:55,847 WARN  L293               SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2023-12-23 03:35:31,476 WARN  L854   $PredicateComparison]: unable to prove that (let ((.cse0 ((_ extract 7 0) c_~var_1_11~0)) (.cse6 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (and (fp.eq c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_4~0 c_~var_1_13~0)) (= c_~var_1_12~0 .cse0) (fp.leq c_~var_1_5~0 .cse1) (let ((.cse3 (fp.gt c_~var_1_5~0 c_~var_1_6~0)) (.cse2 (= c_~var_1_1~0 (fp.sub c_currentRoundingMode c_~var_1_6~0 c_~var_1_7~0)))) (or (and .cse2 (not .cse3)) (and .cse3 (let ((.cse4 (fp.gt c_~var_1_4~0 c_~var_1_6~0))) (or (and .cse4 (let ((.cse5 (fp.lt c_~var_1_4~0 c_~var_1_5~0))) (or (and (not .cse5) (= c_~var_1_1~0 (fp.sub c_currentRoundingMode c_~var_1_5~0 c_~var_1_7~0))) (and .cse5 (= c_~var_1_1~0 (fp.sub c_currentRoundingMode c_~var_1_4~0 c_~var_1_7~0)))))) (and .cse2 (not .cse4))))))) (fp.geq c_~var_1_4~0 .cse6) (not (= (_ bv0 8) c_~var_1_2~0)) (fp.leq c_~var_1_4~0 .cse1) (fp.geq c_~var_1_6~0 .cse6) (fp.geq c_~var_1_5~0 .cse6) (= c_~var_1_20~0 .cse0) (not (= (_ bv8 32) ((_ zero_extend 24) c_~var_1_12~0))) (= ((_ extract 15 0) c_~var_1_11~0) c_~var_1_10~0) (= (_ bv1 8) c_~var_1_14~0) (fp.leq c_~var_1_6~0 .cse1) (fp.geq c_~var_1_7~0 .cse6) (= (_ bv8 16) c_~var_1_21~0) (fp.leq c_~var_1_7~0 .cse1) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false
[2023-12-23 03:35:35,350 INFO  L134       CoverageAnalysis]: Checked inductivity of 2664 backedges. 664 proven. 348 refuted. 0 times theorem prover too weak. 1652 trivial. 0 not checked.
[2023-12-23 03:35:35,351 INFO  L327         TraceCheckSpWp]: Computing backward predicates...