/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-53.i


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


This is Ultimate 0.2.5-dev-df9f019-m
[2024-11-05 20:21:20,942 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-05 20:21:21,028 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-05 20:21:21,033 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-05 20:21:21,034 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-05 20:21:21,063 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-05 20:21:21,064 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-05 20:21:21,064 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-05 20:21:21,065 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-05 20:21:21,066 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-05 20:21:21,066 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-05 20:21:21,067 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-05 20:21:21,067 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-05 20:21:21,067 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-05 20:21:21,068 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-05 20:21:21,068 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-05 20:21:21,068 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-05 20:21:21,068 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-05 20:21:21,069 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-05 20:21:21,069 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-05 20:21:21,073 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-05 20:21:21,073 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-05 20:21:21,073 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-05 20:21:21,074 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-05 20:21:21,074 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-05 20:21:21,074 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-05 20:21:21,074 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-05 20:21:21,074 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-05 20:21:21,074 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-05 20:21:21,075 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-05 20:21:21,075 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-05 20:21:21,075 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-05 20:21:21,075 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-05 20:21:21,075 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-05 20:21:21,076 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 20:21:21,076 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-05 20:21:21,077 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-05 20:21:21,077 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-05 20:21:21,077 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-05 20:21:21,077 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-05 20:21:21,078 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-05 20:21:21,078 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-05 20:21:21,078 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-05 20:21:21,078 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-05 20:21:21,079 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:21,300 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-05 20:21:21,323 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-05 20:21:21,329 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-05 20:21:21,330 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-05 20:21:21,331 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-05 20:21:21,332 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-53.i
[2024-11-05 20:21:22,775 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-05 20:21:22,939 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-05 20:21:22,939 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-53.i
[2024-11-05 20:21:22,949 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2bbdeff1/4eceb06da6224f99aa28ae5cee5f7d4b/FLAG7f5a926c1
[2024-11-05 20:21:22,963 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2bbdeff1/4eceb06da6224f99aa28ae5cee5f7d4b
[2024-11-05 20:21:22,966 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-05 20:21:22,967 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-05 20:21:22,968 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-05 20:21:22,968 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-05 20:21:22,972 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-05 20:21:22,972 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:21:22" (1/1) ...
[2024-11-05 20:21:22,973 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55332985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:22, skipping insertion in model container
[2024-11-05 20:21:22,973 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:21:22" (1/1) ...
[2024-11-05 20:21:22,998 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-05 20:21:23,151 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-53.i[915,928]
[2024-11-05 20:21:23,201 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 20:21:23,220 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-05 20:21:23,230 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-53.i[915,928]
[2024-11-05 20:21:23,259 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-05 20:21:23,290 INFO  L204         MainTranslator]: Completed translation
[2024-11-05 20:21:23,290 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23 WrapperNode
[2024-11-05 20:21:23,290 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-05 20:21:23,291 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-05 20:21:23,292 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-05 20:21:23,292 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-05 20:21:23,298 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,307 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,329 INFO  L138                Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133
[2024-11-05 20:21:23,330 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-05 20:21:23,331 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-05 20:21:23,331 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-05 20:21:23,331 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-05 20:21:23,341 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,341 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,346 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,377 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-05 20:21:23,378 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,378 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,387 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,390 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,396 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,398 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,403 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-05 20:21:23,404 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-05 20:21:23,404 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-05 20:21:23,404 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-05 20:21:23,410 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (1/1) ...
[2024-11-05 20:21:23,418 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-05 20:21:23,429 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-05 20:21:23,445 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-05 20:21:23,449 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-05 20:21:23,475 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-05 20:21:23,475 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-05 20:21:23,475 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-05 20:21:23,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-05 20:21:23,475 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-05 20:21:23,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-05 20:21:23,569 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-05 20:21:23,571 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-05 20:21:24,139 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-05 20:21:24,139 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-05 20:21:24,153 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-05 20:21:24,154 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-05 20:21:24,154 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:21:24 BoogieIcfgContainer
[2024-11-05 20:21:24,154 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-05 20:21:24,161 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-05 20:21:24,161 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-05 20:21:24,164 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-05 20:21:24,164 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:21:22" (1/3) ...
[2024-11-05 20:21:24,165 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e0babd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:21:24, skipping insertion in model container
[2024-11-05 20:21:24,166 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:21:23" (2/3) ...
[2024-11-05 20:21:24,166 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e0babd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:21:24, skipping insertion in model container
[2024-11-05 20:21:24,167 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:21:24" (3/3) ...
[2024-11-05 20:21:24,169 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-53.i
[2024-11-05 20:21:24,184 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-05 20:21:24,185 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-05 20:21:24,238 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-05 20:21:24,243 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;@6d7ad3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-05 20:21:24,244 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-05 20:21:24,247 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 58 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-05 20:21:24,255 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2024-11-05 20:21:24,256 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 20:21:24,256 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 20:21:24,257 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 20:21:24,261 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 20:21:24,261 INFO  L85        PathProgramCache]: Analyzing trace with hash 1319720570, now seen corresponding path program 1 times
[2024-11-05 20:21:24,267 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 20:21:24,268 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608824407]
[2024-11-05 20:21:24,268 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 20:21:24,270 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:24,270 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 20:21:24,271 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-05 20:21:24,273 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-11-05 20:21:24,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 20:21:24,518 INFO  L255         TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-05 20:21:24,529 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 20:21:24,582 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked.
[2024-11-05 20:21:24,583 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 20:21:24,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 28 proven. 4 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked.
[2024-11-05 20:21:24,731 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 20:21:24,731 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608824407]
[2024-11-05 20:21:24,732 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1608824407] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-05 20:21:24,732 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-05 20:21:24,732 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-05 20:21:24,734 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752243872]
[2024-11-05 20:21:24,735 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-05 20:21:24,740 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-05 20:21:24,740 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 20:21:24,765 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-05 20:21:24,766 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 20:21:24,767 INFO  L87              Difference]: Start difference. First operand  has 58 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2024-11-05 20:21:24,797 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 20:21:24,798 INFO  L93              Difference]: Finished difference Result 109 states and 183 transitions.
[2024-11-05 20:21:24,800 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-05 20:21:24,801 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 112
[2024-11-05 20:21:24,802 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 20:21:24,807 INFO  L225             Difference]: With dead ends: 109
[2024-11-05 20:21:24,807 INFO  L226             Difference]: Without dead ends: 54
[2024-11-05 20:21:24,810 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-05 20:21:24,813 INFO  L432           NwaCegarLoop]: 79 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, 79 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-05 20:21:24,814 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-05 20:21:24,829 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2024-11-05 20:21:24,856 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54.
[2024-11-05 20:21:24,858 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-05 20:21:24,861 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions.
[2024-11-05 20:21:24,863 INFO  L78                 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 112
[2024-11-05 20:21:24,864 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 20:21:24,864 INFO  L471      AbstractCegarLoop]: Abstraction has 54 states and 79 transitions.
[2024-11-05 20:21:24,864 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2024-11-05 20:21:24,865 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions.
[2024-11-05 20:21:24,871 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2024-11-05 20:21:24,871 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 20:21:24,871 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 20:21:24,883 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-05 20:21:25,075 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:25,076 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 20:21:25,077 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 20:21:25,077 INFO  L85        PathProgramCache]: Analyzing trace with hash -1931518288, now seen corresponding path program 1 times
[2024-11-05 20:21:25,077 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 20:21:25,077 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395882242]
[2024-11-05 20:21:25,078 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 20:21:25,078 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:25,078 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 20:21:25,083 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-05 20:21:25,085 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-11-05 20:21:25,333 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 20:21:25,342 INFO  L255         TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-05 20:21:25,347 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 20:21:25,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-05 20:21:25,379 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 20:21:25,516 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-05 20:21:25,517 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 20:21:25,517 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395882242]
[2024-11-05 20:21:25,517 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1395882242] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-05 20:21:25,517 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-05 20:21:25,518 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-05 20:21:25,518 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013019480]
[2024-11-05 20:21:25,518 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-05 20:21:25,519 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-05 20:21:25,520 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 20:21:25,520 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-05 20:21:25,521 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 20:21:25,521 INFO  L87              Difference]: Start difference. First operand 54 states and 79 transitions. Second operand  has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2024-11-05 20:21:25,944 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 20:21:25,944 INFO  L93              Difference]: Finished difference Result 154 states and 227 transitions.
[2024-11-05 20:21:25,944 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-05 20:21:25,945 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 112
[2024-11-05 20:21:25,945 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 20:21:25,947 INFO  L225             Difference]: With dead ends: 154
[2024-11-05 20:21:25,948 INFO  L226             Difference]: Without dead ends: 103
[2024-11-05 20:21:25,948 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 20:21:25,949 INFO  L432           NwaCegarLoop]: 133 mSDtfsCounter, 68 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-05 20:21:25,950 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 200 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-05 20:21:25,951 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 103 states.
[2024-11-05 20:21:25,970 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101.
[2024-11-05 20:21:25,971 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 101 states, 64 states have (on average 1.25) internal successors, (80), 64 states have internal predecessors, (80), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-05 20:21:25,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 148 transitions.
[2024-11-05 20:21:25,973 INFO  L78                 Accepts]: Start accepts. Automaton has 101 states and 148 transitions. Word has length 112
[2024-11-05 20:21:25,974 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 20:21:25,974 INFO  L471      AbstractCegarLoop]: Abstraction has 101 states and 148 transitions.
[2024-11-05 20:21:25,974 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2024-11-05 20:21:25,974 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 148 transitions.
[2024-11-05 20:21:25,976 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-05 20:21:25,976 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 20:21:25,976 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 20:21:25,988 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 20:21:26,176 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:26,177 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 20:21:26,178 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 20:21:26,178 INFO  L85        PathProgramCache]: Analyzing trace with hash 16914940, now seen corresponding path program 1 times
[2024-11-05 20:21:26,178 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 20:21:26,178 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516737469]
[2024-11-05 20:21:26,178 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 20:21:26,179 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:26,179 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 20:21:26,182 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-05 20:21:26,183 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2024-11-05 20:21:26,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 20:21:26,389 INFO  L255         TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-05 20:21:26,393 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 20:21:26,638 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-05 20:21:26,638 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 20:21:26,846 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-05 20:21:26,846 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 20:21:26,846 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516737469]
[2024-11-05 20:21:26,846 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1516737469] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-05 20:21:26,846 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-05 20:21:26,847 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3
[2024-11-05 20:21:26,847 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48726048]
[2024-11-05 20:21:26,847 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-05 20:21:26,848 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-05 20:21:26,848 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 20:21:26,850 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-05 20:21:26,850 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 20:21:26,850 INFO  L87              Difference]: Start difference. First operand 101 states and 148 transitions. Second operand  has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2024-11-05 20:21:27,207 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 20:21:27,207 INFO  L93              Difference]: Finished difference Result 207 states and 303 transitions.
[2024-11-05 20:21:27,208 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-05 20:21:27,209 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 113
[2024-11-05 20:21:27,209 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 20:21:27,211 INFO  L225             Difference]: With dead ends: 207
[2024-11-05 20:21:27,211 INFO  L226             Difference]: Without dead ends: 109
[2024-11-05 20:21:27,212 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-05 20:21:27,213 INFO  L432           NwaCegarLoop]: 73 mSDtfsCounter, 17 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-05 20:21:27,214 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 138 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-05 20:21:27,215 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2024-11-05 20:21:27,227 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107.
[2024-11-05 20:21:27,228 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 70 states have internal predecessors, (87), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-05 20:21:27,230 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions.
[2024-11-05 20:21:27,230 INFO  L78                 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 113
[2024-11-05 20:21:27,232 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 20:21:27,232 INFO  L471      AbstractCegarLoop]: Abstraction has 107 states and 155 transitions.
[2024-11-05 20:21:27,233 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2024-11-05 20:21:27,233 INFO  L276                IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions.
[2024-11-05 20:21:27,234 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-05 20:21:27,234 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 20:21:27,234 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 20:21:27,246 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2024-11-05 20:21:27,435 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:27,436 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 20:21:27,436 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 20:21:27,436 INFO  L85        PathProgramCache]: Analyzing trace with hash -128748962, now seen corresponding path program 1 times
[2024-11-05 20:21:27,437 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 20:21:27,437 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678944799]
[2024-11-05 20:21:27,437 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 20:21:27,437 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:27,437 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 20:21:27,440 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-05 20:21:27,443 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2024-11-05 20:21:27,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 20:21:27,667 INFO  L255         TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-05 20:21:27,671 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 20:21:27,717 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-05 20:21:27,717 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 20:21:27,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-05 20:21:27,829 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 20:21:27,829 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678944799]
[2024-11-05 20:21:27,829 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1678944799] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-05 20:21:27,829 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-05 20:21:27,829 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-05 20:21:27,830 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625324535]
[2024-11-05 20:21:27,830 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-05 20:21:27,830 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-05 20:21:27,831 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 20:21:27,831 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-05 20:21:27,831 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-05 20:21:27,832 INFO  L87              Difference]: Start difference. First operand 107 states and 155 transitions. Second operand  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2024-11-05 20:21:28,727 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 20:21:28,727 INFO  L93              Difference]: Finished difference Result 324 states and 470 transitions.
[2024-11-05 20:21:28,727 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-05 20:21:28,728 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113
[2024-11-05 20:21:28,728 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 20:21:28,731 INFO  L225             Difference]: With dead ends: 324
[2024-11-05 20:21:28,731 INFO  L226             Difference]: Without dead ends: 220
[2024-11-05 20:21:28,736 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-05 20:21:28,737 INFO  L432           NwaCegarLoop]: 147 mSDtfsCounter, 142 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-05 20:21:28,737 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 257 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-05 20:21:28,738 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 220 states.
[2024-11-05 20:21:28,758 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 109.
[2024-11-05 20:21:28,758 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 109 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 72 states have internal predecessors, (89), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-05 20:21:28,762 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions.
[2024-11-05 20:21:28,763 INFO  L78                 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 113
[2024-11-05 20:21:28,763 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 20:21:28,763 INFO  L471      AbstractCegarLoop]: Abstraction has 109 states and 157 transitions.
[2024-11-05 20:21:28,763 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2024-11-05 20:21:28,764 INFO  L276                IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions.
[2024-11-05 20:21:28,765 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-05 20:21:28,765 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 20:21:28,765 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 20:21:28,779 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 (5)] Forceful destruction successful, exit code 0
[2024-11-05 20:21:28,966 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
[2024-11-05 20:21:28,966 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 20:21:28,967 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 20:21:28,967 INFO  L85        PathProgramCache]: Analyzing trace with hash 1646258400, now seen corresponding path program 1 times
[2024-11-05 20:21:28,967 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 20:21:28,967 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334019846]
[2024-11-05 20:21:28,968 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 20:21:28,968 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:28,968 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 20:21:28,970 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)
[2024-11-05 20:21:28,972 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
[2024-11-05 20:21:29,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 20:21:29,179 INFO  L255         TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-05 20:21:29,182 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-05 20:21:29,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 106 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2024-11-05 20:21:29,368 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-05 20:21:29,616 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2024-11-05 20:21:29,617 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-05 20:21:29,617 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334019846]
[2024-11-05 20:21:29,617 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [334019846] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-05 20:21:29,617 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-05 20:21:29,617 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12
[2024-11-05 20:21:29,617 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814936908]
[2024-11-05 20:21:29,618 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-05 20:21:29,618 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-05 20:21:29,618 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-05 20:21:29,619 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-05 20:21:29,619 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2024-11-05 20:21:29,619 INFO  L87              Difference]: Start difference. First operand 109 states and 157 transitions. Second operand  has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2024-11-05 20:21:31,568 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-05 20:21:31,568 INFO  L93              Difference]: Finished difference Result 342 states and 481 transitions.
[2024-11-05 20:21:31,568 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2024-11-05 20:21:31,569 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 113
[2024-11-05 20:21:31,569 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-05 20:21:31,572 INFO  L225             Difference]: With dead ends: 342
[2024-11-05 20:21:31,573 INFO  L226             Difference]: Without dead ends: 236
[2024-11-05 20:21:31,574 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=268, Invalid=724, Unknown=0, NotChecked=0, Total=992
[2024-11-05 20:21:31,575 INFO  L432           NwaCegarLoop]: 104 mSDtfsCounter, 197 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-05 20:21:31,575 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 403 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-05 20:21:31,578 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2024-11-05 20:21:31,610 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 115.
[2024-11-05 20:21:31,610 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 76 states have internal predecessors, (92), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-05 20:21:31,611 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 160 transitions.
[2024-11-05 20:21:31,612 INFO  L78                 Accepts]: Start accepts. Automaton has 115 states and 160 transitions. Word has length 113
[2024-11-05 20:21:31,613 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-05 20:21:31,613 INFO  L471      AbstractCegarLoop]: Abstraction has 115 states and 160 transitions.
[2024-11-05 20:21:31,613 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)
[2024-11-05 20:21:31,613 INFO  L276                IsEmpty]: Start isEmpty. Operand 115 states and 160 transitions.
[2024-11-05 20:21:31,615 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-05 20:21:31,615 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-05 20:21:31,615 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-05 20:21:31,627 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 (6)] Forceful destruction successful, exit code 0
[2024-11-05 20:21:31,815 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:31,816 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-05 20:21:31,817 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-05 20:21:31,817 INFO  L85        PathProgramCache]: Analyzing trace with hash 68189198, now seen corresponding path program 1 times
[2024-11-05 20:21:31,817 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-05 20:21:31,817 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710999294]
[2024-11-05 20:21:31,817 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-05 20:21:31,817 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-05 20:21:31,817 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-05 20:21:31,819 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-05 20:21:31,819 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 (7)] Waiting until timeout for monitored process
[2024-11-05 20:21:32,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-05 20:21:32,027 INFO  L255         TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-11-05 20:21:32,032 INFO  L278         TraceCheckSpWp]: Computing forward predicates...