/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_amount50_file-26.i


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


This is Ultimate 0.2.5-dev-df9f019-m
[2024-11-05 20:17:55,191 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 20:17:55,270 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 20:17:55,276 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 20:17:55,277 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 20:17:55,304 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 20:17:55,304 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 20:17:55,305 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 20:17:55,306 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 20:17:55,309 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 20:17:55,309 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 20:17:55,309 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 20:17:55,310 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 20:17:55,310 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 20:17:55,310 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 20:17:55,310 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 20:17:55,311 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 20:17:55,311 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 20:17:55,311 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 20:17:55,311 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 20:17:55,311 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 20:17:55,313 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 20:17:55,314 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 20:17:55,314 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 20:17:55,314 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 20:17:55,314 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 20:17:55,314 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 20:17:55,315 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 20:17:55,315 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 20:17:55,315 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 20:17:55,316 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 20:17:55,316 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 20:17:55,316 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 20:17:55,316 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 20:17:55,316 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 20:17:55,317 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 20:17:55,317 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 20:17:55,317 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 20:17:55,317 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 20:17:55,317 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 20:17:55,317 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 20:17:55,318 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 20:17:55,318 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 20:17:55,318 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 20:17:55,318 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:17:55,556 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 20:17:55,578 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 20:17:55,581 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 20:17:55,582 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 20:17:55,582 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 20:17:55,584 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-26.i
[2024-11-05 20:17:56,971 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 20:17:57,180 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 20:17:57,180 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-26.i
[2024-11-05 20:17:57,191 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e77edb94c/46cb1e95651e40199f32174511ca9d7c/FLAGdde4eca55
[2024-11-05 20:17:57,534 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e77edb94c/46cb1e95651e40199f32174511ca9d7c
[2024-11-05 20:17:57,537 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 20:17:57,538 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 20:17:57,541 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 20:17:57,541 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 20:17:57,546 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 20:17:57,547 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,548 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8ea452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57, skipping insertion in model container
[2024-11-05 20:17:57,548 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,579 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 20:17:57,741 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_amount50_file-26.i[915,928]
[2024-11-05 20:17:57,803 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 20:17:57,815 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 20:17:57,824 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_amount50_file-26.i[915,928]
[2024-11-05 20:17:57,848 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 20:17:57,864 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 20:17:57,865 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57 WrapperNode
[2024-11-05 20:17:57,865 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 20:17:57,866 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 20:17:57,866 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 20:17:57,866 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 20:17:57,871 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,880 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,907 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139
[2024-11-05 20:17:57,911 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 20:17:57,912 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 20:17:57,912 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 20:17:57,912 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 20:17:57,922 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,923 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,935 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,952 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 20:17:57,952 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,952 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,961 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,964 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,966 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,967 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,973 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 20:17:57,974 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 20:17:57,974 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 20:17:57,974 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 20:17:57,975 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (1/1) ...
[2024-11-05 20:17:57,981 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 20:17:57,994 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 20:17:58,006 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 20:17:58,008 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 20:17:58,026 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 20:17:58,026 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 20:17:58,026 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 20:17:58,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 20:17:58,027 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 20:17:58,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 20:17:58,099 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 20:17:58,101 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 20:18:11,168 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-05 20:18:11,168 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 20:18:11,178 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 20:18:11,178 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 20:18:11,179 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:18:11 BoogieIcfgContainer
[2024-11-05 20:18:11,179 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 20:18:11,181 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 20:18:11,181 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 20:18:11,184 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 20:18:11,184 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:17:57" (1/3) ...
[2024-11-05 20:18:11,185 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c04402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:18:11, skipping insertion in model container
[2024-11-05 20:18:11,185 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:17:57" (2/3) ...
[2024-11-05 20:18:11,185 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c04402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:18:11, skipping insertion in model container
[2024-11-05 20:18:11,186 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:18:11" (3/3) ...
[2024-11-05 20:18:11,186 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-26.i
[2024-11-05 20:18:11,201 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 20:18:11,202 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 20:18:11,262 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 20:18:11,267 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;@1751471b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 20:18:11,267 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 20:18:11,270 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 60 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-05 20:18:11,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-05 20:18:11,279 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 20:18:11,279 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:11,280 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 20:18:11,283 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 20:18:11,284 INFO  L85        PathProgramCache]: Analyzing trace with hash 711714392, now seen corresponding path program 1 times
[2024-11-05 20:18:11,289 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 20:18:11,290 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812742004]
[2024-11-05 20:18:11,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 20:18:11,291 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 20:18:11,291 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 20:18:11,293 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 20:18:11,294 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 20:18:12,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 20:18:12,214 INFO  L255         TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 20:18:12,223 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 20:18:12,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2024-11-05 20:18:12,262 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 20:18:13,182 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 26 proven. 8 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-05 20:18:13,183 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 20:18:13,183 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812742004]
[2024-11-05 20:18:13,183 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [812742004] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-05 20:18:13,183 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-05 20:18:13,184 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-05 20:18:13,185 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496770340]
[2024-11-05 20:18:13,186 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 20:18:13,189 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 20:18:13,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 20:18:13,209 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 20:18:13,209 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 20:18:13,212 INFO  L87              Difference]: Start difference. First operand  has 60 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-05 20:18:13,249 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 20:18:13,250 INFO  L93              Difference]: Finished difference Result 113 states and 192 transitions.
[2024-11-05 20:18:13,252 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 20:18:13,254 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118
[2024-11-05 20:18:13,254 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 20:18:13,260 INFO  L225             Difference]: With dead ends: 113
[2024-11-05 20:18:13,260 INFO  L226             Difference]: Without dead ends: 56
[2024-11-05 20:18:13,263 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 234 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 20:18:13,266 INFO  L432           NwaCegarLoop]: 83 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, 83 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 20:18:13,267 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 20:18:13,283 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-11-05 20:18:13,312 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2024-11-05 20:18:13,313 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-05 20:18:13,315 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 83 transitions.
[2024-11-05 20:18:13,317 INFO  L78                 Accepts]: Start accepts. Automaton has 56 states and 83 transitions. Word has length 118
[2024-11-05 20:18:13,317 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 20:18:13,317 INFO  L471      AbstractCegarLoop]: Abstraction has 56 states and 83 transitions.
[2024-11-05 20:18:13,317 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-05 20:18:13,318 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 83 transitions.
[2024-11-05 20:18:13,320 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 119
[2024-11-05 20:18:13,320 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 20:18:13,320 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:13,345 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
[2024-11-05 20:18:13,521 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 20:18:13,521 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 20:18:13,522 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 20:18:13,522 INFO  L85        PathProgramCache]: Analyzing trace with hash -138715684, now seen corresponding path program 1 times
[2024-11-05 20:18:13,522 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 20:18:13,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554314797]
[2024-11-05 20:18:13,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 20:18:13,523 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 20:18:13,523 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 20:18:13,526 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 20:18:13,528 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 20:18:14,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 20:18:14,354 INFO  L255         TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-05 20:18:14,360 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 20:18:16,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 233 proven. 39 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked.
[2024-11-05 20:18:16,958 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 20:18:18,245 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-05 20:18:18,245 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 20:18:18,246 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554314797]
[2024-11-05 20:18:18,246 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1554314797] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-05 20:18:18,246 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-05 20:18:18,246 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9
[2024-11-05 20:18:18,246 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555068388]
[2024-11-05 20:18:18,247 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 20:18:18,251 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-05 20:18:18,251 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 20:18:18,252 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-05 20:18:18,252 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2024-11-05 20:18:18,252 INFO  L87              Difference]: Start difference. First operand 56 states and 83 transitions. Second operand  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-05 20:18:23,244 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 20:18:27,253 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 20:18:31,262 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 20:18:35,268 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 20:18:35,377 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 20:18:35,378 INFO  L93              Difference]: Finished difference Result 136 states and 200 transitions.
[2024-11-05 20:18:35,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-05 20:18:35,379 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118
[2024-11-05 20:18:35,380 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 20:18:35,382 INFO  L225             Difference]: With dead ends: 136
[2024-11-05 20:18:35,382 INFO  L226             Difference]: Without dead ends: 83
[2024-11-05 20:18:35,384 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2024-11-05 20:18:35,385 INFO  L432           NwaCegarLoop]: 93 mSDtfsCounter, 33 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time
[2024-11-05 20:18:35,385 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 258 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 4 Unknown, 0 Unchecked, 17.0s Time]
[2024-11-05 20:18:35,386 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2024-11-05 20:18:35,398 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80.
[2024-11-05 20:18:35,398 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 80 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 57 states have internal predecessors, (75), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-05 20:18:35,400 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 117 transitions.
[2024-11-05 20:18:35,400 INFO  L78                 Accepts]: Start accepts. Automaton has 80 states and 117 transitions. Word has length 118
[2024-11-05 20:18:35,401 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 20:18:35,401 INFO  L471      AbstractCegarLoop]: Abstraction has 80 states and 117 transitions.
[2024-11-05 20:18:35,401 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-05 20:18:35,402 INFO  L276                IsEmpty]: Start isEmpty. Operand 80 states and 117 transitions.
[2024-11-05 20:18:35,403 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-11-05 20:18:35,403 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 20:18:35,404 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:35,434 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 20:18:35,604 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 20:18:35,605 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 20:18:35,605 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 20:18:35,606 INFO  L85        PathProgramCache]: Analyzing trace with hash -557508680, now seen corresponding path program 1 times
[2024-11-05 20:18:35,606 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 20:18:35,606 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329111991]
[2024-11-05 20:18:35,606 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 20:18:35,606 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 20:18:35,606 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 20:18:35,609 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 20:18:35,625 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 20:18:36,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 20:18:36,452 INFO  L255         TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-05 20:18:36,458 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 20:18:39,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-05 20:18:39,449 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 20:18:41,816 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-05 20:18:41,817 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 20:18:41,817 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329111991]
[2024-11-05 20:18:41,817 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [329111991] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-05 20:18:41,817 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-05 20:18:41,817 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-05 20:18:41,817 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736796135]
[2024-11-05 20:18:41,817 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-05 20:18:41,818 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-05 20:18:41,818 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 20:18:41,821 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-05 20:18:41,821 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-05 20:18:41,822 INFO  L87              Difference]: Start difference. First operand 80 states and 117 transitions. Second operand  has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2024-11-05 20:18:48,180 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 20:18:52,184 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 20:18:56,189 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-05 20:19:00,198 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 20:19:03,216 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-05 20:19:08,578 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-05 20:19:12,586 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 20:19:12,588 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 20:19:12,588 INFO  L93              Difference]: Finished difference Result 237 states and 349 transitions.
[2024-11-05 20:19:12,660 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-05 20:19:12,660 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 119
[2024-11-05 20:19:12,661 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 20:19:12,666 INFO  L225             Difference]: With dead ends: 237
[2024-11-05 20:19:12,666 INFO  L226             Difference]: Without dead ends: 160
[2024-11-05 20:19:12,667 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-11-05 20:19:12,668 INFO  L432           NwaCegarLoop]: 85 mSDtfsCounter, 100 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 38 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time
[2024-11-05 20:19:12,671 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 383 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 122 Invalid, 6 Unknown, 0 Unchecked, 30.5s Time]
[2024-11-05 20:19:12,672 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 160 states.
[2024-11-05 20:19:12,710 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 138.
[2024-11-05 20:19:12,713 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 138 states, 95 states have (on average 1.3368421052631578) internal successors, (127), 96 states have internal predecessors, (127), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39)
[2024-11-05 20:19:12,716 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 205 transitions.
[2024-11-05 20:19:12,717 INFO  L78                 Accepts]: Start accepts. Automaton has 138 states and 205 transitions. Word has length 119
[2024-11-05 20:19:12,717 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 20:19:12,718 INFO  L471      AbstractCegarLoop]: Abstraction has 138 states and 205 transitions.
[2024-11-05 20:19:12,718 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2024-11-05 20:19:12,718 INFO  L276                IsEmpty]: Start isEmpty. Operand 138 states and 205 transitions.
[2024-11-05 20:19:12,720 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 120
[2024-11-05 20:19:12,720 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 20:19:12,720 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:12,746 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
[2024-11-05 20:19:12,920 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 20:19:12,921 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 20:19:12,922 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 20:19:12,922 INFO  L85        PathProgramCache]: Analyzing trace with hash 122549690, now seen corresponding path program 1 times
[2024-11-05 20:19:12,922 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 20:19:12,922 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311786672]
[2024-11-05 20:19:12,922 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 20:19:12,922 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 20:19:12,923 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 20:19:12,926 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 20:19:12,927 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 20:19:13,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 20:19:13,731 INFO  L255         TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-05 20:19:13,737 INFO  L278         TraceCheckSpWp]: Computing forward predicates...