/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-20.i


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


This is Ultimate 0.2.5-dev-df9f019-m
[2024-11-05 19:22:10,381 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 19:22:10,467 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 19:22:10,474 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 19:22:10,474 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 19:22:10,506 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 19:22:10,508 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 19:22:10,509 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 19:22:10,510 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 19:22:10,510 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 19:22:10,511 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 19:22:10,511 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 19:22:10,512 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 19:22:10,512 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 19:22:10,512 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 19:22:10,513 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 19:22:10,513 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 19:22:10,516 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 19:22:10,516 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 19:22:10,517 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 19:22:10,517 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 19:22:10,519 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 19:22:10,519 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 19:22:10,519 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 19:22:10,519 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 19:22:10,520 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 19:22:10,520 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 19:22:10,520 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 19:22:10,521 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 19:22:10,521 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 19:22:10,521 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 19:22:10,521 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 19:22:10,522 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 19:22:10,522 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 19:22:10,522 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 19:22:10,523 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 19:22:10,523 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 19:22:10,523 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 19:22:10,523 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 19:22:10,524 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 19:22:10,524 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 19:22:10,525 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 19:22:10,525 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 19:22:10,525 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 19:22:10,526 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 19:22:10,757 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 19:22:10,787 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 19:22:10,791 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 19:22:10,792 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 19:22:10,792 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 19:22:10,794 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-20.i
[2024-11-05 19:22:12,269 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 19:22:12,488 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 19:22:12,489 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-20.i
[2024-11-05 19:22:12,505 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e11cf96b/b332964a8b6f46f5b84ee78f824d332b/FLAGf2dc29fcd
[2024-11-05 19:22:12,521 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e11cf96b/b332964a8b6f46f5b84ee78f824d332b
[2024-11-05 19:22:12,524 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 19:22:12,525 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 19:22:12,526 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 19:22:12,526 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 19:22:12,533 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 19:22:12,534 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:12,535 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ebd2ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12, skipping insertion in model container
[2024-11-05 19:22:12,536 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:12,570 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 19:22:12,749 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-20.i[916,929]
[2024-11-05 19:22:12,828 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 19:22:12,844 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 19:22:12,855 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-20.i[916,929]
[2024-11-05 19:22:12,900 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 19:22:12,920 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 19:22:12,921 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12 WrapperNode
[2024-11-05 19:22:12,921 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 19:22:12,923 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 19:22:12,923 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 19:22:12,926 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 19:22:12,934 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:12,956 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:12,988 INFO  L138                Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 205
[2024-11-05 19:22:12,988 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 19:22:12,989 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 19:22:12,989 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 19:22:12,989 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 19:22:12,999 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:13,000 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:13,004 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:13,024 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 19:22:13,024 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:13,025 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:13,037 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:13,043 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:13,049 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:13,051 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:13,056 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 19:22:13,057 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 19:22:13,057 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 19:22:13,057 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 19:22:13,058 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (1/1) ...
[2024-11-05 19:22:13,064 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 19:22:13,075 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 19:22:13,093 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-05 19:22:13,099 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 19:22:13,127 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 19:22:13,127 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 19:22:13,128 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 19:22:13,128 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 19:22:13,128 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 19:22:13,128 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 19:22:13,256 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 19:22:13,260 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 19:22:17,734 INFO  L?                        ?]: Removed 30 outVars from TransFormulas that were not future-live.
[2024-11-05 19:22:17,735 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 19:22:17,754 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 19:22:17,755 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 19:22:17,755 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:22:17 BoogieIcfgContainer
[2024-11-05 19:22:17,755 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 19:22:17,759 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 19:22:17,759 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 19:22:17,762 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 19:22:17,762 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:22:12" (1/3) ...
[2024-11-05 19:22:17,762 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798de672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:22:17, skipping insertion in model container
[2024-11-05 19:22:17,763 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:22:12" (2/3) ...
[2024-11-05 19:22:17,763 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798de672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:22:17, skipping insertion in model container
[2024-11-05 19:22:17,763 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:22:17" (3/3) ...
[2024-11-05 19:22:17,764 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-20.i
[2024-11-05 19:22:17,776 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 19:22:17,777 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 19:22:17,846 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 19:22:17,851 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;@6827c902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 19:22:17,851 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 19:22:17,856 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 93 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 60 states have internal predecessors, (83), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31)
[2024-11-05 19:22:17,868 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 199
[2024-11-05 19:22:17,868 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:22:17,869 INFO  L215           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:22:17,869 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:22:17,873 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:22:17,874 INFO  L85        PathProgramCache]: Analyzing trace with hash -509326082, now seen corresponding path program 1 times
[2024-11-05 19:22:17,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:22:17,881 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069642918]
[2024-11-05 19:22:17,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:22:17,882 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 19:22:17,883 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:22:17,884 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 19:22:17,885 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 19:22:18,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:22:18,264 INFO  L255         TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-05 19:22:18,279 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 19:22:19,775 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2024-11-05 19:22:19,776 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 19:22:20,647 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2024-11-05 19:22:20,648 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 19:22:20,648 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069642918]
[2024-11-05 19:22:20,649 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1069642918] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-05 19:22:20,649 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-05 19:22:20,649 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-05 19:22:20,651 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481549157]
[2024-11-05 19:22:20,652 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-05 19:22:20,658 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-05 19:22:20,658 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 19:22:20,686 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-05 19:22:20,687 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-05 19:22:20,689 INFO  L87              Difference]: Start difference. First operand  has 93 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 60 states have internal predecessors, (83), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand  has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62)
[2024-11-05 19:22:22,975 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:22:24,422 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:22:26,235 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:22:29,358 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:22:30,811 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:22:32,362 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:22:34,113 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:22:34,180 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 19:22:34,180 INFO  L93              Difference]: Finished difference Result 443 states and 802 transitions.
[2024-11-05 19:22:34,182 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-05 19:22:34,183 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 198
[2024-11-05 19:22:34,184 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 19:22:34,197 INFO  L225             Difference]: With dead ends: 443
[2024-11-05 19:22:34,197 INFO  L226             Difference]: Without dead ends: 353
[2024-11-05 19:22:34,203 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72
[2024-11-05 19:22:34,206 INFO  L432           NwaCegarLoop]: 183 mSDtfsCounter, 285 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time
[2024-11-05 19:22:34,207 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 747 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time]
[2024-11-05 19:22:34,225 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 353 states.
[2024-11-05 19:22:34,295 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 169.
[2024-11-05 19:22:34,296 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 169 states, 104 states have (on average 1.2884615384615385) internal successors, (134), 104 states have internal predecessors, (134), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62)
[2024-11-05 19:22:34,299 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions.
[2024-11-05 19:22:34,305 INFO  L78                 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 198
[2024-11-05 19:22:34,306 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 19:22:34,307 INFO  L471      AbstractCegarLoop]: Abstraction has 169 states and 258 transitions.
[2024-11-05 19:22:34,307 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62)
[2024-11-05 19:22:34,307 INFO  L276                IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions.
[2024-11-05 19:22:34,315 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 200
[2024-11-05 19:22:34,315 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:22:34,318 INFO  L215           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:22:34,332 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-11-05 19:22:34,519 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 19:22:34,521 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:22:34,522 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:22:34,522 INFO  L85        PathProgramCache]: Analyzing trace with hash -923343155, now seen corresponding path program 1 times
[2024-11-05 19:22:34,522 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:22:34,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285647339]
[2024-11-05 19:22:34,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:22:34,523 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 19:22:34,523 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:22:34,526 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-05 19:22:34,528 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-11-05 19:22:34,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:22:34,859 INFO  L255         TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-05 19:22:34,867 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 19:22:39,554 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 722 proven. 264 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked.
[2024-11-05 19:22:39,555 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 19:22:47,053 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 24 proven. 66 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked.
[2024-11-05 19:22:47,054 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 19:22:47,054 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285647339]
[2024-11-05 19:22:47,054 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [285647339] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 19:22:47,054 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 19:22:47,055 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8] total 23
[2024-11-05 19:22:47,055 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080357479]
[2024-11-05 19:22:47,056 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 19:22:47,059 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-05 19:22:47,060 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 19:22:47,061 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-05 19:22:47,063 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506
[2024-11-05 19:22:47,063 INFO  L87              Difference]: Start difference. First operand 169 states and 258 transitions. Second operand  has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (57), 5 states have call predecessors, (57), 8 states have return successors, (58), 6 states have call predecessors, (58), 6 states have call successors, (58)
[2024-11-05 19:22:59,619 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-05 19:23:01,350 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-05 19:23:15,081 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-05 19:23:17,391 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-05 19:23:20,005 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]
[2024-11-05 19:23:21,402 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 19:23:21,402 INFO  L93              Difference]: Finished difference Result 661 states and 919 transitions.
[2024-11-05 19:23:21,406 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. 
[2024-11-05 19:23:21,406 INFO  L78                 Accepts]: Start accepts. Automaton has  has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (57), 5 states have call predecessors, (57), 8 states have return successors, (58), 6 states have call predecessors, (58), 6 states have call successors, (58) Word has length 199
[2024-11-05 19:23:21,407 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 19:23:21,413 INFO  L225             Difference]: With dead ends: 661
[2024-11-05 19:23:21,413 INFO  L226             Difference]: Without dead ends: 495
[2024-11-05 19:23:21,416 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 379 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1603 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=1421, Invalid=4129, Unknown=0, NotChecked=0, Total=5550
[2024-11-05 19:23:21,417 INFO  L432           NwaCegarLoop]: 148 mSDtfsCounter, 769 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 188 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time
[2024-11-05 19:23:21,418 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 779 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1324 Invalid, 1 Unknown, 0 Unchecked, 23.8s Time]
[2024-11-05 19:23:21,419 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 495 states.
[2024-11-05 19:23:21,478 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 383.
[2024-11-05 19:23:21,480 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 383 states, 260 states have (on average 1.2384615384615385) internal successors, (322), 262 states have internal predecessors, (322), 101 states have call successors, (101), 21 states have call predecessors, (101), 21 states have return successors, (101), 99 states have call predecessors, (101), 101 states have call successors, (101)
[2024-11-05 19:23:21,485 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 524 transitions.
[2024-11-05 19:23:21,486 INFO  L78                 Accepts]: Start accepts. Automaton has 383 states and 524 transitions. Word has length 199
[2024-11-05 19:23:21,489 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 19:23:21,489 INFO  L471      AbstractCegarLoop]: Abstraction has 383 states and 524 transitions.
[2024-11-05 19:23:21,489 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 23 states, 23 states have (on average 4.173913043478261) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (57), 5 states have call predecessors, (57), 8 states have return successors, (58), 6 states have call predecessors, (58), 6 states have call successors, (58)
[2024-11-05 19:23:21,490 INFO  L276                IsEmpty]: Start isEmpty. Operand 383 states and 524 transitions.
[2024-11-05 19:23:21,492 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 200
[2024-11-05 19:23:21,492 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:23:21,493 INFO  L215           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:23:21,507 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2024-11-05 19:23:21,693 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 19:23:21,694 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:23:21,694 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:23:21,694 INFO  L85        PathProgramCache]: Analyzing trace with hash -1316370165, now seen corresponding path program 1 times
[2024-11-05 19:23:21,695 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:23:21,695 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31452972]
[2024-11-05 19:23:21,695 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:23:21,695 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 19:23:21,695 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:23:21,697 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 19:23:21,699 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 19:23:21,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:23:21,981 INFO  L255         TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-05 19:23:21,987 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 19:23:23,679 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 850 proven. 60 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked.
[2024-11-05 19:23:23,680 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 19:23:24,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 30 proven. 60 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked.
[2024-11-05 19:23:24,710 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 19:23:24,710 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31452972]
[2024-11-05 19:23:24,710 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [31452972] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 19:23:24,711 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 19:23:24,711 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12
[2024-11-05 19:23:24,711 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617028777]
[2024-11-05 19:23:24,711 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 19:23:24,712 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-05 19:23:24,712 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 19:23:24,713 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-05 19:23:24,713 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132
[2024-11-05 19:23:24,713 INFO  L87              Difference]: Start difference. First operand 383 states and 524 transitions. Second operand  has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62)
[2024-11-05 19:23:27,180 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-05 19:23:30,918 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-05 19:23:31,339 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 19:23:31,339 INFO  L93              Difference]: Finished difference Result 1063 states and 1404 transitions.
[2024-11-05 19:23:31,340 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2024-11-05 19:23:31,341 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 199
[2024-11-05 19:23:31,341 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 19:23:31,348 INFO  L225             Difference]: With dead ends: 1063
[2024-11-05 19:23:31,348 INFO  L226             Difference]: Without dead ends: 683
[2024-11-05 19:23:31,350 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420
[2024-11-05 19:23:31,351 INFO  L432           NwaCegarLoop]: 99 mSDtfsCounter, 205 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2024-11-05 19:23:31,351 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 708 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2024-11-05 19:23:31,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 683 states.
[2024-11-05 19:23:31,440 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 441.
[2024-11-05 19:23:31,443 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 441 states, 297 states have (on average 1.1952861952861953) internal successors, (355), 300 states have internal predecessors, (355), 112 states have call successors, (112), 31 states have call predecessors, (112), 31 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112)
[2024-11-05 19:23:31,445 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 579 transitions.
[2024-11-05 19:23:31,446 INFO  L78                 Accepts]: Start accepts. Automaton has 441 states and 579 transitions. Word has length 199
[2024-11-05 19:23:31,447 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 19:23:31,447 INFO  L471      AbstractCegarLoop]: Abstraction has 441 states and 579 transitions.
[2024-11-05 19:23:31,447 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (62), 3 states have call predecessors, (62), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62)
[2024-11-05 19:23:31,447 INFO  L276                IsEmpty]: Start isEmpty. Operand 441 states and 579 transitions.
[2024-11-05 19:23:31,450 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 200
[2024-11-05 19:23:31,450 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 19:23:31,450 INFO  L215           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:23:31,464 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 19:23:31,651 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 19:23:31,652 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 19:23:31,652 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 19:23:31,653 INFO  L85        PathProgramCache]: Analyzing trace with hash 1289653389, now seen corresponding path program 1 times
[2024-11-05 19:23:31,653 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 19:23:31,653 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997911637]
[2024-11-05 19:23:31,653 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 19:23:31,653 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 19:23:31,653 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 19:23:31,656 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 19:23:31,657 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 19:23:31,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 19:23:31,933 INFO  L255         TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 43 conjuncts are in the unsatisfiable core
[2024-11-05 19:23:31,941 INFO  L278         TraceCheckSpWp]: Computing forward predicates...