/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-33.i


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


This is Ultimate 0.2.5-dev-df9f019-m
[2024-11-05 19:23:46,055 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 19:23:46,132 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 19:23:46,140 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 19:23:46,140 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 19:23:46,168 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 19:23:46,169 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 19:23:46,170 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 19:23:46,170 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 19:23:46,171 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 19:23:46,171 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 19:23:46,172 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 19:23:46,172 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 19:23:46,173 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 19:23:46,173 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 19:23:46,175 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 19:23:46,175 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 19:23:46,178 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 19:23:46,178 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 19:23:46,178 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 19:23:46,178 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 19:23:46,179 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 19:23:46,179 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 19:23:46,179 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 19:23:46,179 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 19:23:46,180 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 19:23:46,180 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 19:23:46,180 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 19:23:46,180 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 19:23:46,180 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 19:23:46,181 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 19:23:46,181 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 19:23:46,181 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 19:23:46,181 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 19:23:46,181 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 19:23:46,182 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 19:23:46,182 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 19:23:46,184 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 19:23:46,184 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 19:23:46,185 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 19:23:46,185 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 19:23:46,185 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 19:23:46,185 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 19:23:46,185 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 19:23:46,186 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 19:23:46,419 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 19:23:46,441 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 19:23:46,443 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 19:23:46,445 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 19:23:46,446 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 19:23:46,447 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-33.i
[2024-11-05 19:23:47,921 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 19:23:48,139 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 19:23:48,140 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-33.i
[2024-11-05 19:23:48,153 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc56d998/a4f700b17bcb467aa6d52c7608f64e9c/FLAG1d8ee742a
[2024-11-05 19:23:48,506 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc56d998/a4f700b17bcb467aa6d52c7608f64e9c
[2024-11-05 19:23:48,508 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 19:23:48,509 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 19:23:48,510 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 19:23:48,510 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 19:23:48,514 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 19:23:48,515 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:48,516 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207c42b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48, skipping insertion in model container
[2024-11-05 19:23:48,516 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:48,554 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 19:23:48,715 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-33.i[916,929]
[2024-11-05 19:23:48,813 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 19:23:48,826 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 19:23:48,836 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-33.i[916,929]
[2024-11-05 19:23:48,896 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 19:23:48,928 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 19:23:48,929 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48 WrapperNode
[2024-11-05 19:23:48,929 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 19:23:48,931 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 19:23:48,931 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 19:23:48,931 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 19:23:48,937 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:48,950 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:48,983 INFO  L138                Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 234
[2024-11-05 19:23:48,983 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 19:23:48,984 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 19:23:48,984 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 19:23:48,985 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 19:23:48,995 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:48,995 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:49,000 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:49,018 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 19:23:49,019 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:49,019 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:49,034 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:49,038 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:49,045 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:49,052 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:49,057 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 19:23:49,058 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 19:23:49,058 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 19:23:49,058 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 19:23:49,059 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (1/1) ...
[2024-11-05 19:23:49,072 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 19:23:49,084 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 19:23:49,104 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 19:23:49,110 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 19:23:49,135 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 19:23:49,135 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 19:23:49,136 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 19:23:49,136 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 19:23:49,136 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 19:23:49,137 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 19:23:49,246 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 19:23:49,247 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 19:23:54,919 INFO  L?                        ?]: Removed 28 outVars from TransFormulas that were not future-live.
[2024-11-05 19:23:54,919 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 19:23:54,942 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 19:23:54,942 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 19:23:54,943 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:23:54 BoogieIcfgContainer
[2024-11-05 19:23:54,943 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 19:23:54,946 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 19:23:54,946 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 19:23:54,949 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 19:23:54,950 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:23:48" (1/3) ...
[2024-11-05 19:23:54,951 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abc32d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:23:54, skipping insertion in model container
[2024-11-05 19:23:54,951 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:23:48" (2/3) ...
[2024-11-05 19:23:54,951 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abc32d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:23:54, skipping insertion in model container
[2024-11-05 19:23:54,952 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:23:54" (3/3) ...
[2024-11-05 19:23:54,953 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-33.i
[2024-11-05 19:23:54,968 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 19:23:54,968 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 19:23:55,045 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 19:23:55,057 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;@25678e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 19:23:55,057 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 19:23:55,062 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 103 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 63 states have internal predecessors, (83), 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 19:23:55,077 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-05 19:23:55,077 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:23:55,078 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 19:23:55,079 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:23:55,084 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:23:55,084 INFO  L85        PathProgramCache]: Analyzing trace with hash -1838682336, now seen corresponding path program 1 times
[2024-11-05 19:23:55,094 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:23:55,095 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867017924]
[2024-11-05 19:23:55,095 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:23:55,097 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 19:23:55,098 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:23:55,101 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 19:23:55,104 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 19:23:55,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:23:55,656 INFO  L255         TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 19:23:55,669 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 19:23:55,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 914 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked.
[2024-11-05 19:23:55,744 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 19:23:56,260 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 14 proven. 60 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked.
[2024-11-05 19:23:56,261 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 19:23:56,261 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867017924]
[2024-11-05 19:23:56,262 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [867017924] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-05 19:23:56,262 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-05 19:23:56,262 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-05 19:23:56,264 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069124081]
[2024-11-05 19:23:56,265 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 19:23:56,269 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 19:23:56,269 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 19:23:56,294 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 19:23:56,294 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 19:23:56,297 INFO  L87              Difference]: Start difference. First operand  has 103 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 63 states have internal predecessors, (83), 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 19:23:56,333 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 19:23:56,334 INFO  L93              Difference]: Finished difference Result 199 states and 350 transitions.
[2024-11-05 19:23:56,336 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 19:23:56,337 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 19:23:56,337 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 19:23:56,344 INFO  L225             Difference]: With dead ends: 199
[2024-11-05 19:23:56,345 INFO  L226             Difference]: Without dead ends: 99
[2024-11-05 19:23:56,349 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 19:23:56,353 INFO  L432           NwaCegarLoop]: 152 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, 152 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 19:23:56,357 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 19:23:56,373 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2024-11-05 19:23:56,411 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99.
[2024-11-05 19:23:56,412 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 99 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 59 states have internal predecessors, (76), 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 19:23:56,414 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 152 transitions.
[2024-11-05 19:23:56,417 INFO  L78                 Accepts]: Start accepts. Automaton has 99 states and 152 transitions. Word has length 239
[2024-11-05 19:23:56,417 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 19:23:56,417 INFO  L471      AbstractCegarLoop]: Abstraction has 99 states and 152 transitions.
[2024-11-05 19:23:56,418 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 19:23:56,418 INFO  L276                IsEmpty]: Start isEmpty. Operand 99 states and 152 transitions.
[2024-11-05 19:23:56,422 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-05 19:23:56,422 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:23:56,423 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 19:23:56,436 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 19:23:56,624 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 19:23:56,625 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:23:56,626 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:23:56,626 INFO  L85        PathProgramCache]: Analyzing trace with hash 131254948, now seen corresponding path program 1 times
[2024-11-05 19:23:56,626 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:23:56,626 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378008340]
[2024-11-05 19:23:56,627 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:23:56,627 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 19:23:56,627 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:23:56,630 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 19:23:56,631 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 19:23:57,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:23:57,082 INFO  L255         TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-05 19:23:57,091 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 19:24:00,038 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 1954 proven. 195 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked.
[2024-11-05 19:24:00,039 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 19:24:01,517 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 75 proven. 36 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked.
[2024-11-05 19:24:01,517 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 19:24:01,518 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378008340]
[2024-11-05 19:24:01,518 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [378008340] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 19:24:01,518 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 19:24:01,518 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 20
[2024-11-05 19:24:01,518 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715670302]
[2024-11-05 19:24:01,519 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 19:24:01,520 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-11-05 19:24:01,521 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 19:24:01,522 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-11-05 19:24:01,522 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380
[2024-11-05 19:24:01,522 INFO  L87              Difference]: Start difference. First operand 99 states and 152 transitions. Second operand  has 20 states, 20 states have (on average 5.6) internal successors, (112), 20 states have internal predecessors, (112), 5 states have call successors, (72), 4 states have call predecessors, (72), 8 states have return successors, (73), 5 states have call predecessors, (73), 5 states have call successors, (73)
[2024-11-05 19:24:07,424 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-05 19:24:08,780 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-05 19:24:12,920 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-05 19:24:14,709 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-05 19:24:19,311 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-05 19:24:23,319 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-05 19:24:27,535 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-05 19:24:37,644 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-05 19:24:52,195 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 19:24:52,196 INFO  L93              Difference]: Finished difference Result 484 states and 686 transitions.
[2024-11-05 19:24:52,196 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. 
[2024-11-05 19:24:52,197 INFO  L78                 Accepts]: Start accepts. Automaton has  has 20 states, 20 states have (on average 5.6) internal successors, (112), 20 states have internal predecessors, (112), 5 states have call successors, (72), 4 states have call predecessors, (72), 8 states have return successors, (73), 5 states have call predecessors, (73), 5 states have call successors, (73) Word has length 239
[2024-11-05 19:24:52,198 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 19:24:52,206 INFO  L225             Difference]: With dead ends: 484
[2024-11-05 19:24:52,206 INFO  L226             Difference]: Without dead ends: 388
[2024-11-05 19:24:52,210 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2377 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=1381, Invalid=5929, Unknown=0, NotChecked=0, Total=7310
[2024-11-05 19:24:52,211 INFO  L432           NwaCegarLoop]: 231 mSDtfsCounter, 572 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 487 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.9s IncrementalHoareTripleChecker+Time
[2024-11-05 19:24:52,212 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1099 Invalid, 2491 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [487 Valid, 2000 Invalid, 4 Unknown, 0 Unchecked, 39.9s Time]
[2024-11-05 19:24:52,215 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 388 states.
[2024-11-05 19:24:52,283 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 271.
[2024-11-05 19:24:52,285 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 271 states, 161 states have (on average 1.15527950310559) internal successors, (186), 164 states have internal predecessors, (186), 94 states have call successors, (94), 15 states have call predecessors, (94), 15 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94)
[2024-11-05 19:24:52,288 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 374 transitions.
[2024-11-05 19:24:52,289 INFO  L78                 Accepts]: Start accepts. Automaton has 271 states and 374 transitions. Word has length 239
[2024-11-05 19:24:52,290 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 19:24:52,290 INFO  L471      AbstractCegarLoop]: Abstraction has 271 states and 374 transitions.
[2024-11-05 19:24:52,290 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 20 states, 20 states have (on average 5.6) internal successors, (112), 20 states have internal predecessors, (112), 5 states have call successors, (72), 4 states have call predecessors, (72), 8 states have return successors, (73), 5 states have call predecessors, (73), 5 states have call successors, (73)
[2024-11-05 19:24:52,291 INFO  L276                IsEmpty]: Start isEmpty. Operand 271 states and 374 transitions.
[2024-11-05 19:24:52,298 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-05 19:24:52,298 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:24:52,298 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 19:24:52,317 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 19:24:52,499 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 19:24:52,499 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:24:52,500 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:24:52,500 INFO  L85        PathProgramCache]: Analyzing trace with hash 129407906, now seen corresponding path program 1 times
[2024-11-05 19:24:52,500 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:24:52,500 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476834205]
[2024-11-05 19:24:52,501 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:24:52,501 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 19:24:52,501 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:24:52,502 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 19:24:52,503 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 19:24:52,883 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:24:52,897 INFO  L255         TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-05 19:24:52,903 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 19:24:54,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 37 proven. 111 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked.
[2024-11-05 19:24:54,173 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 19:24:56,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked.
[2024-11-05 19:24:56,470 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 19:24:56,471 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476834205]
[2024-11-05 19:24:56,471 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [476834205] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 19:24:56,471 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 19:24:56,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2024-11-05 19:24:56,471 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960321010]
[2024-11-05 19:24:56,471 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 19:24:56,472 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-05 19:24:56,473 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 19:24:56,474 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-05 19:24:56,474 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2024-11-05 19:24:56,474 INFO  L87              Difference]: Start difference. First operand 271 states and 374 transitions. Second operand  has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 2 states have call predecessors, (76), 3 states have call successors, (76)
[2024-11-05 19:25:02,340 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-05 19:25:04,449 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 19:25:04,449 INFO  L93              Difference]: Finished difference Result 599 states and 820 transitions.
[2024-11-05 19:25:04,450 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2024-11-05 19:25:04,450 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 2 states have call predecessors, (76), 3 states have call successors, (76) Word has length 239
[2024-11-05 19:25:04,451 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 19:25:04,457 INFO  L225             Difference]: With dead ends: 599
[2024-11-05 19:25:04,457 INFO  L226             Difference]: Without dead ends: 370
[2024-11-05 19:25:04,458 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=152, Invalid=310, Unknown=0, NotChecked=0, Total=462
[2024-11-05 19:25:04,460 INFO  L432           NwaCegarLoop]: 204 mSDtfsCounter, 166 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time
[2024-11-05 19:25:04,460 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 513 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time]
[2024-11-05 19:25:04,461 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 370 states.
[2024-11-05 19:25:04,542 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 310.
[2024-11-05 19:25:04,543 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 310 states, 184 states have (on average 1.1195652173913044) internal successors, (206), 187 states have internal predecessors, (206), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 101 states have call predecessors, (104), 104 states have call successors, (104)
[2024-11-05 19:25:04,545 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 414 transitions.
[2024-11-05 19:25:04,546 INFO  L78                 Accepts]: Start accepts. Automaton has 310 states and 414 transitions. Word has length 239
[2024-11-05 19:25:04,546 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 19:25:04,547 INFO  L471      AbstractCegarLoop]: Abstraction has 310 states and 414 transitions.
[2024-11-05 19:25:04,547 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 3 states have call successors, (75), 2 states have call predecessors, (75), 4 states have return successors, (76), 2 states have call predecessors, (76), 3 states have call successors, (76)
[2024-11-05 19:25:04,547 INFO  L276                IsEmpty]: Start isEmpty. Operand 310 states and 414 transitions.
[2024-11-05 19:25:04,550 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 240
[2024-11-05 19:25:04,550 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:25:04,550 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 19:25:04,566 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 19:25:04,750 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 19:25:04,751 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:25:04,752 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:25:04,752 INFO  L85        PathProgramCache]: Analyzing trace with hash 809466276, now seen corresponding path program 1 times
[2024-11-05 19:25:04,752 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:25:04,752 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598857417]
[2024-11-05 19:25:04,752 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:25:04,752 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 19:25:04,753 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:25:04,755 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 19:25:04,757 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 19:25:05,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:25:05,256 INFO  L255         TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 59 conjuncts are in the unsatisfiable core
[2024-11-05 19:25:05,270 INFO  L278         TraceCheckSpWp]: Computing forward predicates...