/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-68.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 08:00:21,298 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 08:00:21,374 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 08:00:21,378 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 08:00:21,378 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 08:00:21,405 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 08:00:21,406 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 08:00:21,406 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 08:00:21,407 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 08:00:21,408 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 08:00:21,409 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 08:00:21,409 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 08:00:21,409 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 08:00:21,410 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 08:00:21,410 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 08:00:21,410 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 08:00:21,410 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 08:00:21,411 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 08:00:21,411 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 08:00:21,415 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 08:00:21,415 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 08:00:21,415 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 08:00:21,416 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 08:00:21,416 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 08:00:21,416 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 08:00:21,416 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 08:00:21,416 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 08:00:21,417 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 08:00:21,417 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 08:00:21,417 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 08:00:21,417 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 08:00:21,417 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 08:00:21,418 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 08:00:21,418 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 08:00:21,418 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:00:21,418 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 08:00:21,419 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 08:00:21,419 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 08:00:21,419 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 08:00:21,420 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 08:00:21,420 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 08:00:21,420 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 08:00:21,421 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 08:00:21,421 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 08:00:21,421 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:00:21,666 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 08:00:21,691 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 08:00:21,693 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 08:00:21,694 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 08:00:21,695 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 08:00:21,696 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-68.i
[2024-11-03 08:00:23,181 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 08:00:23,406 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 08:00:23,407 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-68.i
[2024-11-03 08:00:23,420 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb4ee83f8/d1a1a6cf3028450d8c5afd0d92eee7f2/FLAG094943152
[2024-11-03 08:00:23,436 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb4ee83f8/d1a1a6cf3028450d8c5afd0d92eee7f2
[2024-11-03 08:00:23,438 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 08:00:23,440 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 08:00:23,442 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 08:00:23,442 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 08:00:23,447 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 08:00:23,448 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,448 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf1e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23, skipping insertion in model container
[2024-11-03 08:00:23,449 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,486 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 08:00:23,653 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-68.i[916,929]
[2024-11-03 08:00:23,738 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:00:23,754 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 08:00:23,763 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-68.i[916,929]
[2024-11-03 08:00:23,813 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:00:23,837 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 08:00:23,839 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23 WrapperNode
[2024-11-03 08:00:23,840 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 08:00:23,841 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 08:00:23,841 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 08:00:23,841 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 08:00:23,847 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,861 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,890 INFO  L138                Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236
[2024-11-03 08:00:23,890 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 08:00:23,892 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 08:00:23,892 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 08:00:23,892 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 08:00:23,905 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,905 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,910 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,926 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].
[2024-11-03 08:00:23,927 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,927 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,946 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,949 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,954 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,960 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,969 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 08:00:23,969 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 08:00:23,970 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 08:00:23,970 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 08:00:23,970 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (1/1) ...
[2024-11-03 08:00:23,979 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:00:23,991 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 08:00:24,007 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)
[2024-11-03 08:00:24,012 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
[2024-11-03 08:00:24,037 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 08:00:24,037 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 08:00:24,037 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 08:00:24,038 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 08:00:24,038 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 08:00:24,038 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 08:00:24,162 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 08:00:24,165 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 08:00:26,037 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-03 08:00:26,037 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 08:00:26,054 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 08:00:26,054 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 08:00:26,054 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:00:26 BoogieIcfgContainer
[2024-11-03 08:00:26,054 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 08:00:26,057 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 08:00:26,058 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 08:00:26,060 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 08:00:26,061 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:00:23" (1/3) ...
[2024-11-03 08:00:26,062 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0d7338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:00:26, skipping insertion in model container
[2024-11-03 08:00:26,062 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:23" (2/3) ...
[2024-11-03 08:00:26,063 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0d7338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:00:26, skipping insertion in model container
[2024-11-03 08:00:26,063 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:00:26" (3/3) ...
[2024-11-03 08:00:26,065 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-68.i
[2024-11-03 08:00:26,080 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 08:00:26,081 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 08:00:26,150 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 08:00:26,156 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;@2b1cf46c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 08:00:26,157 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 08:00:26,161 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 105 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 63 states have internal predecessors, (84), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2024-11-03 08:00:26,179 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2024-11-03 08:00:26,179 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:00:26,180 INFO  L215           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:00:26,180 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:00:26,184 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:00:26,185 INFO  L85        PathProgramCache]: Analyzing trace with hash -820819256, now seen corresponding path program 1 times
[2024-11-03 08:00:26,194 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:00:26,194 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249316054]
[2024-11-03 08:00:26,195 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:00:26,196 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
[2024-11-03 08:00:26,197 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:00:26,200 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)
[2024-11-03 08:00:26,202 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
[2024-11-03 08:00:26,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:00:26,685 INFO  L255         TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 08:00:26,700 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:00:26,770 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 2482 trivial. 0 not checked.
[2024-11-03 08:00:26,770 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:00:27,227 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 8 proven. 70 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked.
[2024-11-03 08:00:27,228 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:00:27,228 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249316054]
[2024-11-03 08:00:27,232 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1249316054] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 08:00:27,233 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 08:00:27,233 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-03 08:00:27,234 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108267839]
[2024-11-03 08:00:27,236 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 08:00:27,240 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 08:00:27,241 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:00:27,270 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 08:00:27,271 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 08:00:27,273 INFO  L87              Difference]: Start difference. First operand  has 105 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 63 states have internal predecessors, (84), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand  has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 08:00:27,304 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:00:27,305 INFO  L93              Difference]: Finished difference Result 203 states and 362 transitions.
[2024-11-03 08:00:27,306 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 08:00:27,307 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 251
[2024-11-03 08:00:27,307 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:00:27,314 INFO  L225             Difference]: With dead ends: 203
[2024-11-03 08:00:27,315 INFO  L226             Difference]: Without dead ends: 101
[2024-11-03 08:00:27,319 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 08:00:27,323 INFO  L432           NwaCegarLoop]: 157 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, 157 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
[2024-11-03 08:00:27,324 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 08:00:27,342 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2024-11-03 08:00:27,370 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2024-11-03 08:00:27,373 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 101 states, 59 states have (on average 1.305084745762712) internal successors, (77), 59 states have internal predecessors, (77), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2024-11-03 08:00:27,376 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 157 transitions.
[2024-11-03 08:00:27,378 INFO  L78                 Accepts]: Start accepts. Automaton has 101 states and 157 transitions. Word has length 251
[2024-11-03 08:00:27,379 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:00:27,379 INFO  L471      AbstractCegarLoop]: Abstraction has 101 states and 157 transitions.
[2024-11-03 08:00:27,379 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 08:00:27,380 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 157 transitions.
[2024-11-03 08:00:27,388 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2024-11-03 08:00:27,388 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:00:27,389 INFO  L215           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:00:27,408 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
[2024-11-03 08:00:27,591 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
[2024-11-03 08:00:27,591 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:00:27,592 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:00:27,592 INFO  L85        PathProgramCache]: Analyzing trace with hash 666519812, now seen corresponding path program 1 times
[2024-11-03 08:00:27,592 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:00:27,593 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982729356]
[2024-11-03 08:00:27,593 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:00:27,593 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
[2024-11-03 08:00:27,593 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:00:27,595 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)
[2024-11-03 08:00:27,596 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
[2024-11-03 08:00:27,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:00:28,016 INFO  L255         TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 08:00:28,025 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:00:28,135 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked.
[2024-11-03 08:00:28,135 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:00:28,546 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked.
[2024-11-03 08:00:28,547 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:00:28,548 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982729356]
[2024-11-03 08:00:28,548 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [982729356] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 08:00:28,548 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 08:00:28,549 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-03 08:00:28,549 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70869186]
[2024-11-03 08:00:28,549 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 08:00:28,554 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 08:00:28,554 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:00:28,555 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 08:00:28,555 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 08:00:28,555 INFO  L87              Difference]: Start difference. First operand 101 states and 157 transitions. Second operand  has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40)
[2024-11-03 08:00:29,886 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:00:29,924 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:00:29,924 INFO  L93              Difference]: Finished difference Result 199 states and 311 transitions.
[2024-11-03 08:00:29,949 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 08:00:29,949 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 251
[2024-11-03 08:00:29,951 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:00:29,953 INFO  L225             Difference]: With dead ends: 199
[2024-11-03 08:00:29,953 INFO  L226             Difference]: Without dead ends: 101
[2024-11-03 08:00:29,954 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 08:00:29,955 INFO  L432           NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-03 08:00:29,956 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 459 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-03 08:00:29,957 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2024-11-03 08:00:29,972 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2024-11-03 08:00:29,973 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 101 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 59 states have internal predecessors, (76), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2024-11-03 08:00:29,975 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 156 transitions.
[2024-11-03 08:00:29,978 INFO  L78                 Accepts]: Start accepts. Automaton has 101 states and 156 transitions. Word has length 251
[2024-11-03 08:00:29,980 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:00:29,981 INFO  L471      AbstractCegarLoop]: Abstraction has 101 states and 156 transitions.
[2024-11-03 08:00:29,981 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40)
[2024-11-03 08:00:29,981 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 156 transitions.
[2024-11-03 08:00:29,988 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2024-11-03 08:00:29,992 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:00:29,993 INFO  L215           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:00:30,013 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
[2024-11-03 08:00:30,193 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
[2024-11-03 08:00:30,194 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:00:30,195 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:00:30,195 INFO  L85        PathProgramCache]: Analyzing trace with hash -1022423930, now seen corresponding path program 1 times
[2024-11-03 08:00:30,195 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:00:30,195 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5317762]
[2024-11-03 08:00:30,195 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:00:30,196 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
[2024-11-03 08:00:30,196 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:00:30,199 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)
[2024-11-03 08:00:30,200 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
[2024-11-03 08:00:30,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:00:30,641 INFO  L255         TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 08:00:30,649 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:00:31,534 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 1219 proven. 87 refuted. 0 times theorem prover too weak. 1814 trivial. 0 not checked.
[2024-11-03 08:00:31,534 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:00:32,310 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 30 proven. 87 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked.
[2024-11-03 08:00:32,310 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:00:32,311 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5317762]
[2024-11-03 08:00:32,311 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [5317762] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 08:00:32,311 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 08:00:32,311 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-03 08:00:32,311 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983404886]
[2024-11-03 08:00:32,311 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 08:00:32,312 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 08:00:32,312 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:00:32,313 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 08:00:32,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-03 08:00:32,314 INFO  L87              Difference]: Start difference. First operand 101 states and 156 transitions. Second operand  has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70)
[2024-11-03 08:00:34,278 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:00:35,692 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 08:00:36,080 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:00:36,081 INFO  L93              Difference]: Finished difference Result 313 states and 476 transitions.
[2024-11-03 08:00:36,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-03 08:00:36,083 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 251
[2024-11-03 08:00:36,084 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:00:36,086 INFO  L225             Difference]: With dead ends: 313
[2024-11-03 08:00:36,086 INFO  L226             Difference]: Without dead ends: 215
[2024-11-03 08:00:36,088 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 494 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2024-11-03 08:00:36,089 INFO  L432           NwaCegarLoop]: 112 mSDtfsCounter, 167 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2024-11-03 08:00:36,089 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 360 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2024-11-03 08:00:36,090 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2024-11-03 08:00:36,133 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 205.
[2024-11-03 08:00:36,134 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 205 states, 120 states have (on average 1.275) internal successors, (153), 120 states have internal predecessors, (153), 80 states have call successors, (80), 4 states have call predecessors, (80), 4 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80)
[2024-11-03 08:00:36,136 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 313 transitions.
[2024-11-03 08:00:36,136 INFO  L78                 Accepts]: Start accepts. Automaton has 205 states and 313 transitions. Word has length 251
[2024-11-03 08:00:36,138 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:00:36,139 INFO  L471      AbstractCegarLoop]: Abstraction has 205 states and 313 transitions.
[2024-11-03 08:00:36,139 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70)
[2024-11-03 08:00:36,139 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 313 transitions.
[2024-11-03 08:00:36,142 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2024-11-03 08:00:36,142 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:00:36,143 INFO  L215           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:00:36,162 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
[2024-11-03 08:00:36,343 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
[2024-11-03 08:00:36,344 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:00:36,345 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:00:36,345 INFO  L85        PathProgramCache]: Analyzing trace with hash -1020576888, now seen corresponding path program 1 times
[2024-11-03 08:00:36,345 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:00:36,346 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974852649]
[2024-11-03 08:00:36,346 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:00:36,346 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
[2024-11-03 08:00:36,346 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:00:36,349 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)
[2024-11-03 08:00:36,350 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
[2024-11-03 08:00:36,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:00:36,715 INFO  L255         TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-03 08:00:36,721 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:00:40,531 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 2073 proven. 228 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked.
[2024-11-03 08:00:40,532 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:00:43,979 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 78 proven. 39 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked.
[2024-11-03 08:00:43,980 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:00:43,980 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974852649]
[2024-11-03 08:00:43,980 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1974852649] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 08:00:43,980 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 08:00:43,981 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6] total 19
[2024-11-03 08:00:43,981 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872887851]
[2024-11-03 08:00:43,981 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 08:00:43,982 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-03 08:00:43,982 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:00:43,983 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-03 08:00:43,983 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342
[2024-11-03 08:00:43,983 INFO  L87              Difference]: Start difference. First operand 205 states and 313 transitions. Second operand  has 19 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 18 states have internal predecessors, (100), 6 states have call successors, (68), 5 states have call predecessors, (68), 8 states have return successors, (69), 6 states have call predecessors, (69), 6 states have call successors, (69)
[2024-11-03 08:00:48,739 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:00:54,010 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:00:58,244 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:01:02,817 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:01:07,743 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:01:12,037 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:01:16,139 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:01:20,729 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:01:25,033 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:01:32,046 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:01:36,235 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:01:36,235 INFO  L93              Difference]: Finished difference Result 457 states and 665 transitions.
[2024-11-03 08:01:36,275 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2024-11-03 08:01:36,276 INFO  L78                 Accepts]: Start accepts. Automaton has  has 19 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 18 states have internal predecessors, (100), 6 states have call successors, (68), 5 states have call predecessors, (68), 8 states have return successors, (69), 6 states have call predecessors, (69), 6 states have call successors, (69) Word has length 251
[2024-11-03 08:01:36,276 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:01:36,279 INFO  L225             Difference]: With dead ends: 457
[2024-11-03 08:01:36,280 INFO  L226             Difference]: Without dead ends: 255
[2024-11-03 08:01:36,281 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=279, Invalid=777, Unknown=0, NotChecked=0, Total=1056
[2024-11-03 08:01:36,282 INFO  L432           NwaCegarLoop]: 108 mSDtfsCounter, 119 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 63 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.2s IncrementalHoareTripleChecker+Time
[2024-11-03 08:01:36,282 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 515 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 652 Invalid, 9 Unknown, 0 Unchecked, 48.2s Time]
[2024-11-03 08:01:36,284 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 255 states.
[2024-11-03 08:01:36,320 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237.
[2024-11-03 08:01:36,320 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 237 states, 144 states have (on average 1.2152777777777777) internal successors, (175), 144 states have internal predecessors, (175), 80 states have call successors, (80), 12 states have call predecessors, (80), 12 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80)
[2024-11-03 08:01:36,322 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 335 transitions.
[2024-11-03 08:01:36,323 INFO  L78                 Accepts]: Start accepts. Automaton has 237 states and 335 transitions. Word has length 251
[2024-11-03 08:01:36,324 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:01:36,324 INFO  L471      AbstractCegarLoop]: Abstraction has 237 states and 335 transitions.
[2024-11-03 08:01:36,324 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 18 states have internal predecessors, (100), 6 states have call successors, (68), 5 states have call predecessors, (68), 8 states have return successors, (69), 6 states have call predecessors, (69), 6 states have call successors, (69)
[2024-11-03 08:01:36,324 INFO  L276                IsEmpty]: Start isEmpty. Operand 237 states and 335 transitions.
[2024-11-03 08:01:36,327 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 252
[2024-11-03 08:01:36,327 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:01:36,327 INFO  L215           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:01:36,350 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 (5)] Ended with exit code 0
[2024-11-03 08:01:36,531 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:01:36,532 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:01:36,532 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:01:36,532 INFO  L85        PathProgramCache]: Analyzing trace with hash 1994526730, now seen corresponding path program 1 times
[2024-11-03 08:01:36,533 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:01:36,533 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852881651]
[2024-11-03 08:01:36,533 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:01:36,533 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
[2024-11-03 08:01:36,533 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:01:36,534 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-03 08:01:36,536 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2024-11-03 08:01:36,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:01:36,911 INFO  L255         TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 26 conjuncts are in the unsatisfiable core
[2024-11-03 08:01:36,916 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:01:57,064 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 2136 proven. 315 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked.
[2024-11-03 08:01:57,064 INFO  L311         TraceCheckSpWp]: Computing backward predicates...