/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-5.i


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


This is Ultimate 0.2.5-dev-df9f019-m
[2024-11-05 19:26:06,069 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 19:26:06,129 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-05 19:26:06,137 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 19:26:06,137 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 19:26:06,152 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 19:26:06,152 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 19:26:06,152 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 19:26:06,153 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 19:26:06,153 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 19:26:06,153 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 19:26:06,154 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 19:26:06,154 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 19:26:06,158 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 19:26:06,158 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 19:26:06,158 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 19:26:06,159 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 19:26:06,159 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 19:26:06,159 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 19:26:06,159 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 19:26:06,159 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 19:26:06,162 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 19:26:06,163 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 19:26:06,163 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 19:26:06,163 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 19:26:06,163 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 19:26:06,163 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 19:26:06,163 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 19:26:06,164 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 19:26:06,164 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 19:26:06,164 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 19:26:06,164 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 19:26:06,164 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 19:26:06,165 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 19:26:06,165 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 19:26:06,165 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 19:26:06,165 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 19:26:06,165 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 19:26:06,165 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 19:26:06,166 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 19:26:06,166 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 19:26:06,167 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 19:26:06,167 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 19:26:06,167 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 19:26:06,167 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 19:26:06,344 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 19:26:06,374 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 19:26:06,377 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 19:26:06,378 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 19:26:06,378 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 19:26:06,379 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-5.i
[2024-11-05 19:26:07,741 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 19:26:07,917 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 19:26:07,918 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-5.i
[2024-11-05 19:26:07,927 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c80d8dfc7/f91564b28568428499a56baad1ca8459/FLAGeffcccd05
[2024-11-05 19:26:07,943 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c80d8dfc7/f91564b28568428499a56baad1ca8459
[2024-11-05 19:26:07,946 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 19:26:07,947 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 19:26:07,948 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 19:26:07,948 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 19:26:07,956 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 19:26:07,956 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:26:07" (1/1) ...
[2024-11-05 19:26:07,957 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e93345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:07, skipping insertion in model container
[2024-11-05 19:26:07,958 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:26:07" (1/1) ...
[2024-11-05 19:26:07,999 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 19:26:08,169 WARN  L250   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_operatoramount_amount100_file-5.i[915,928]
[2024-11-05 19:26:08,252 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 19:26:08,269 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 19:26:08,282 WARN  L250   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_operatoramount_amount100_file-5.i[915,928]
[2024-11-05 19:26:08,323 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 19:26:08,350 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 19:26:08,350 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08 WrapperNode
[2024-11-05 19:26:08,350 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 19:26:08,351 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 19:26:08,352 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 19:26:08,352 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 19:26:08,358 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,372 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,400 INFO  L138                Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 230
[2024-11-05 19:26:08,401 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 19:26:08,401 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 19:26:08,401 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 19:26:08,401 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 19:26:08,409 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,410 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,415 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,431 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].
[2024-11-05 19:26:08,431 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,432 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,442 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,447 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,450 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,452 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,455 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 19:26:08,456 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 19:26:08,456 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 19:26:08,456 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 19:26:08,457 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (1/1) ...
[2024-11-05 19:26:08,461 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 19:26:08,473 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 19:26:08,491 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)
[2024-11-05 19:26:08,498 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
[2024-11-05 19:26:08,519 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 19:26:08,519 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 19:26:08,519 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 19:26:08,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 19:26:08,520 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 19:26:08,520 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 19:26:08,595 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 19:26:08,597 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 19:26:33,211 INFO  L?                        ?]: Removed 18 outVars from TransFormulas that were not future-live.
[2024-11-05 19:26:33,211 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 19:26:33,229 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 19:26:33,230 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 19:26:33,230 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:26:33 BoogieIcfgContainer
[2024-11-05 19:26:33,230 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 19:26:33,232 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 19:26:33,232 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 19:26:33,234 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 19:26:33,234 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:26:07" (1/3) ...
[2024-11-05 19:26:33,235 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2805bf2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:26:33, skipping insertion in model container
[2024-11-05 19:26:33,235 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:26:08" (2/3) ...
[2024-11-05 19:26:33,235 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2805bf2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:26:33, skipping insertion in model container
[2024-11-05 19:26:33,235 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:26:33" (3/3) ...
[2024-11-05 19:26:33,236 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-5.i
[2024-11-05 19:26:33,249 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 19:26:33,249 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 19:26:33,305 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 19:26:33,312 INFO  L333      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, 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;@25f7bd56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 19:26:33,312 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 19:26:33,316 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 104 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 64 states have internal predecessors, (86), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-05 19:26:33,331 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-05 19:26:33,331 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:26:33,332 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 19:26:33,332 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:26:33,338 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:26:33,338 INFO  L85        PathProgramCache]: Analyzing trace with hash -474425850, now seen corresponding path program 1 times
[2024-11-05 19:26:33,345 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:26:33,346 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359127927]
[2024-11-05 19:26:33,346 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:26:33,348 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
[2024-11-05 19:26:33,349 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:26:33,352 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)
[2024-11-05 19:26:33,356 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
[2024-11-05 19:26:34,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:26:35,021 INFO  L255         TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 19:26:35,031 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 19:26:35,154 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 714 proven. 0 refuted. 0 times theorem prover too weak. 2098 trivial. 0 not checked.
[2024-11-05 19:26:35,154 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 19:26:37,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 10 proven. 64 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked.
[2024-11-05 19:26:37,914 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 19:26:37,920 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359127927]
[2024-11-05 19:26:37,921 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [359127927] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-05 19:26:37,921 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-05 19:26:37,921 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-05 19:26:37,922 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326282457]
[2024-11-05 19:26:37,923 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 19:26:37,930 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 19:26:37,930 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 19:26:37,959 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 19:26:37,960 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 19:26:37,962 INFO  L87              Difference]: Start difference. First operand  has 104 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 64 states have internal predecessors, (86), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38)
[2024-11-05 19:26:37,987 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 19:26:37,987 INFO  L93              Difference]: Finished difference Result 201 states and 356 transitions.
[2024-11-05 19:26:37,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 19:26:37,989 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 239
[2024-11-05 19:26:37,989 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 19:26:37,995 INFO  L225             Difference]: With dead ends: 201
[2024-11-05 19:26:37,999 INFO  L226             Difference]: Without dead ends: 100
[2024-11-05 19:26:38,003 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 19:26:38,006 INFO  L432           NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-05 19:26:38,006 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 19:26:38,019 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2024-11-05 19:26:38,040 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100.
[2024-11-05 19:26:38,042 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 100 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 60 states have internal predecessors, (79), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-05 19:26:38,043 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 155 transitions.
[2024-11-05 19:26:38,045 INFO  L78                 Accepts]: Start accepts. Automaton has 100 states and 155 transitions. Word has length 239
[2024-11-05 19:26:38,046 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 19:26:38,046 INFO  L471      AbstractCegarLoop]: Abstraction has 100 states and 155 transitions.
[2024-11-05 19:26:38,046 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38)
[2024-11-05 19:26:38,046 INFO  L276                IsEmpty]: Start isEmpty. Operand 100 states and 155 transitions.
[2024-11-05 19:26:38,050 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-05 19:26:38,050 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:26:38,051 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 19:26:38,101 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
[2024-11-05 19:26:38,251 WARN  L453      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
[2024-11-05 19:26:38,252 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:26:38,252 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:26:38,253 INFO  L85        PathProgramCache]: Analyzing trace with hash 1812998734, now seen corresponding path program 1 times
[2024-11-05 19:26:38,253 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:26:38,253 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850530123]
[2024-11-05 19:26:38,253 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:26:38,253 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
[2024-11-05 19:26:38,253 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:26:38,255 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)
[2024-11-05 19:26:38,257 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
[2024-11-05 19:26:39,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:26:39,876 INFO  L255         TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-05 19:26:39,888 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 19:26:47,703 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 573 proven. 99 refuted. 0 times theorem prover too weak. 2140 trivial. 0 not checked.
[2024-11-05 19:26:47,704 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 19:26:53,847 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 12 proven. 99 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked.
[2024-11-05 19:26:53,848 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 19:26:53,848 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850530123]
[2024-11-05 19:26:53,848 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [850530123] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 19:26:53,848 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 19:26:53,848 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-11-05 19:26:53,848 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781144464]
[2024-11-05 19:26:53,849 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 19:26:53,851 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-05 19:26:53,851 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 19:26:53,852 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-05 19:26:53,852 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-05 19:26:53,853 INFO  L87              Difference]: Start difference. First operand 100 states and 155 transitions. Second operand  has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 3 states have call successors, (71), 2 states have call predecessors, (71), 4 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72)
[2024-11-05 19:27:02,835 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:27:05,059 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:27:10,291 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:27:14,295 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:27:18,301 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:27:18,311 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 19:27:18,311 INFO  L93              Difference]: Finished difference Result 203 states and 312 transitions.
[2024-11-05 19:27:18,519 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-05 19:27:18,519 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 3 states have call successors, (71), 2 states have call predecessors, (71), 4 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 239
[2024-11-05 19:27:18,521 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 19:27:18,523 INFO  L225             Difference]: With dead ends: 203
[2024-11-05 19:27:18,523 INFO  L226             Difference]: Without dead ends: 106
[2024-11-05 19:27:18,524 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110
[2024-11-05 19:27:18,525 INFO  L432           NwaCegarLoop]: 105 mSDtfsCounter, 155 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 25 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time
[2024-11-05 19:27:18,525 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 237 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 221 Invalid, 4 Unknown, 0 Unchecked, 24.0s Time]
[2024-11-05 19:27:18,526 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2024-11-05 19:27:18,538 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104.
[2024-11-05 19:27:18,538 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 104 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-05 19:27:18,539 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 157 transitions.
[2024-11-05 19:27:18,539 INFO  L78                 Accepts]: Start accepts. Automaton has 104 states and 157 transitions. Word has length 239
[2024-11-05 19:27:18,540 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 19:27:18,540 INFO  L471      AbstractCegarLoop]: Abstraction has 104 states and 157 transitions.
[2024-11-05 19:27:18,540 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 3 states have call successors, (71), 2 states have call predecessors, (71), 4 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72)
[2024-11-05 19:27:18,540 INFO  L276                IsEmpty]: Start isEmpty. Operand 104 states and 157 transitions.
[2024-11-05 19:27:18,543 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-05 19:27:18,543 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:27:18,543 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 19:27:18,593 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 (3)] Ended with exit code 0
[2024-11-05 19:27:18,747 WARN  L453      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
[2024-11-05 19:27:18,748 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:27:18,748 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:27:18,748 INFO  L85        PathProgramCache]: Analyzing trace with hash -181145972, now seen corresponding path program 1 times
[2024-11-05 19:27:18,748 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:27:18,749 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033802250]
[2024-11-05 19:27:18,749 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:27:18,749 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
[2024-11-05 19:27:18,749 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:27:18,751 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)
[2024-11-05 19:27:18,754 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
[2024-11-05 19:27:20,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:27:20,517 INFO  L255         TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-05 19:27:20,523 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 19:27:21,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-05 19:27:21,305 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 19:27:25,167 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked.
[2024-11-05 19:27:25,167 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 19:27:25,167 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033802250]
[2024-11-05 19:27:25,167 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1033802250] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-05 19:27:25,168 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-05 19:27:25,168 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-05 19:27:25,168 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521873660]
[2024-11-05 19:27:25,168 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-05 19:27:25,169 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-05 19:27:25,169 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 19:27:25,169 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-05 19:27:25,169 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 19:27:25,170 INFO  L87              Difference]: Start difference. First operand 104 states and 157 transitions. Second operand  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-05 19:27:30,067 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:27:34,078 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:27:34,083 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 19:27:34,083 INFO  L93              Difference]: Finished difference Result 242 states and 365 transitions.
[2024-11-05 19:27:34,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-05 19:27:34,288 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 239
[2024-11-05 19:27:34,289 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 19:27:34,291 INFO  L225             Difference]: With dead ends: 242
[2024-11-05 19:27:34,294 INFO  L226             Difference]: Without dead ends: 141
[2024-11-05 19:27:34,295 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 19:27:34,296 INFO  L432           NwaCegarLoop]: 155 mSDtfsCounter, 39 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time
[2024-11-05 19:27:34,297 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 293 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time]
[2024-11-05 19:27:34,297 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 141 states.
[2024-11-05 19:27:34,327 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 138.
[2024-11-05 19:27:34,328 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 138 states, 94 states have (on average 1.3404255319148937) internal successors, (126), 95 states have internal predecessors, (126), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40)
[2024-11-05 19:27:34,333 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 206 transitions.
[2024-11-05 19:27:34,333 INFO  L78                 Accepts]: Start accepts. Automaton has 138 states and 206 transitions. Word has length 239
[2024-11-05 19:27:34,334 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 19:27:34,335 INFO  L471      AbstractCegarLoop]: Abstraction has 138 states and 206 transitions.
[2024-11-05 19:27:34,336 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38)
[2024-11-05 19:27:34,336 INFO  L276                IsEmpty]: Start isEmpty. Operand 138 states and 206 transitions.
[2024-11-05 19:27:34,339 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-05 19:27:34,339 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:27:34,339 INFO  L215           NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 19:27:34,440 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 (4)] Ended with exit code 0
[2024-11-05 19:27:34,550 WARN  L453      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
[2024-11-05 19:27:34,551 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:27:34,552 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:27:34,552 INFO  L85        PathProgramCache]: Analyzing trace with hash -1870089714, now seen corresponding path program 1 times
[2024-11-05 19:27:34,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:27:34,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176804008]
[2024-11-05 19:27:34,552 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:27:34,553 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
[2024-11-05 19:27:34,553 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:27:34,559 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)
[2024-11-05 19:27:34,560 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2024-11-05 19:27:36,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:27:36,594 INFO  L255         TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-05 19:27:36,600 INFO  L278         TraceCheckSpWp]: Computing forward predicates...