/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_amount25_file-52.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 08:28:23,750 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 08:28:23,827 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 08:28:23,832 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 08:28:23,833 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 08:28:23,862 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 08:28:23,862 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 08:28:23,863 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 08:28:23,863 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 08:28:23,867 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 08:28:23,867 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 08:28:23,867 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 08:28:23,868 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 08:28:23,868 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 08:28:23,868 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 08:28:23,868 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 08:28:23,869 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 08:28:23,869 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 08:28:23,869 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 08:28:23,869 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 08:28:23,870 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 08:28:23,871 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 08:28:23,871 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 08:28:23,871 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 08:28:23,872 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 08:28:23,872 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 08:28:23,872 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 08:28:23,872 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 08:28:23,872 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 08:28:23,873 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 08:28:23,873 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 08:28:23,873 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 08:28:23,873 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 08:28:23,873 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 08:28:23,874 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:28:23,874 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 08:28:23,874 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 08:28:23,874 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 08:28:23,875 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 08:28:23,875 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 08:28:23,875 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 08:28:23,875 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 08:28:23,875 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 08:28:23,875 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 08:28:23,876 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:28:24,087 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 08:28:24,112 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 08:28:24,115 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 08:28:24,116 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 08:28:24,117 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 08:28:24,118 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-52.i
[2024-11-03 08:28:25,529 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 08:28:25,713 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 08:28:25,713 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-52.i
[2024-11-03 08:28:25,720 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0044c94c0/4d7e52f78b5d49cba6e4f8ec3ac02721/FLAGc0d3897b1
[2024-11-03 08:28:25,732 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0044c94c0/4d7e52f78b5d49cba6e4f8ec3ac02721
[2024-11-03 08:28:25,735 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 08:28:25,736 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 08:28:25,737 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 08:28:25,737 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 08:28:25,742 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 08:28:25,742 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:28:25" (1/1) ...
[2024-11-03 08:28:25,743 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ddf9669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:25, skipping insertion in model container
[2024-11-03 08:28:25,743 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:28:25" (1/1) ...
[2024-11-03 08:28:25,764 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 08:28:25,923 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_amount25_file-52.i[915,928]
[2024-11-03 08:28:25,964 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:28:25,977 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 08:28:25,994 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_amount25_file-52.i[915,928]
[2024-11-03 08:28:26,025 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:28:26,045 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 08:28:26,046 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26 WrapperNode
[2024-11-03 08:28:26,046 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 08:28:26,047 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 08:28:26,047 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 08:28:26,047 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 08:28:26,053 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,064 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,086 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107
[2024-11-03 08:28:26,086 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 08:28:26,087 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 08:28:26,087 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 08:28:26,087 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 08:28:26,095 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,096 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,099 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,109 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-03 08:28:26,109 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,110 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,117 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,120 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,122 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,123 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,126 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 08:28:26,127 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 08:28:26,127 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 08:28:26,127 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 08:28:26,128 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (1/1) ...
[2024-11-03 08:28:26,133 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:28:26,142 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 08:28:26,154 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-03 08:28:26,156 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-03 08:28:26,176 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 08:28:26,176 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 08:28:26,176 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 08:28:26,177 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 08:28:26,177 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 08:28:26,177 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 08:28:26,245 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 08:28:26,247 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 08:28:26,487 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-03 08:28:26,488 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 08:28:26,502 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 08:28:26,502 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 08:28:26,503 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:28:26 BoogieIcfgContainer
[2024-11-03 08:28:26,503 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 08:28:26,506 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 08:28:26,506 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 08:28:26,511 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 08:28:26,511 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:28:25" (1/3) ...
[2024-11-03 08:28:26,513 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268e8e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:28:26, skipping insertion in model container
[2024-11-03 08:28:26,513 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:28:26" (2/3) ...
[2024-11-03 08:28:26,513 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268e8e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:28:26, skipping insertion in model container
[2024-11-03 08:28:26,513 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:28:26" (3/3) ...
[2024-11-03 08:28:26,515 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-52.i
[2024-11-03 08:28:26,529 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 08:28:26,529 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 08:28:26,584 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 08:28:26,590 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;@16fa6f19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 08:28:26,591 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 08:28:26,595 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 08:28:26,611 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-03 08:28:26,611 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:28:26,612 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:28:26,613 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:28:26,619 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:28:26,620 INFO  L85        PathProgramCache]: Analyzing trace with hash -1915705130, now seen corresponding path program 1 times
[2024-11-03 08:28:26,629 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:28:26,629 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563143581]
[2024-11-03 08:28:26,630 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:28:26,632 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:28:26,632 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:28:26,636 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-03 08:28:26,637 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-11-03 08:28:26,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:28:26,805 INFO  L255         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-03 08:28:26,816 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:28:27,248 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2024-11-03 08:28:27,249 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:28:27,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked.
[2024-11-03 08:28:27,586 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:28:27,587 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563143581]
[2024-11-03 08:28:27,587 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [563143581] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 08:28:27,587 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 08:28:27,588 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15
[2024-11-03 08:28:27,591 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102213277]
[2024-11-03 08:28:27,592 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 08:28:27,597 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-03 08:28:27,597 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:28:27,622 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-03 08:28:27,624 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210
[2024-11-03 08:28:27,626 INFO  L87              Difference]: Start difference. First operand  has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26)
[2024-11-03 08:28:28,855 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:28:28,855 INFO  L93              Difference]: Finished difference Result 207 states and 359 transitions.
[2024-11-03 08:28:28,857 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. 
[2024-11-03 08:28:28,858 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 113
[2024-11-03 08:28:28,859 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:28:28,866 INFO  L225             Difference]: With dead ends: 207
[2024-11-03 08:28:28,866 INFO  L226             Difference]: Without dead ends: 158
[2024-11-03 08:28:28,870 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332
[2024-11-03 08:28:28,873 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 220 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-03 08:28:28,875 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 267 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-03 08:28:28,891 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 158 states.
[2024-11-03 08:28:28,939 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 59.
[2024-11-03 08:28:28,941 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 08:28:28,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 79 transitions.
[2024-11-03 08:28:28,945 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 79 transitions. Word has length 113
[2024-11-03 08:28:28,949 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:28:28,949 INFO  L471      AbstractCegarLoop]: Abstraction has 59 states and 79 transitions.
[2024-11-03 08:28:28,950 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26)
[2024-11-03 08:28:28,950 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 79 transitions.
[2024-11-03 08:28:28,954 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-03 08:28:28,954 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:28:28,954 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:28:28,962 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
[2024-11-03 08:28:29,155 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:28:29,156 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:28:29,156 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:28:29,157 INFO  L85        PathProgramCache]: Analyzing trace with hash -1106358504, now seen corresponding path program 1 times
[2024-11-03 08:28:29,157 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:28:29,157 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506087648]
[2024-11-03 08:28:29,157 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:28:29,158 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:28:29,158 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:28:29,160 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-03 08:28:29,162 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-11-03 08:28:29,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:28:29,268 INFO  L255         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-03 08:28:29,274 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:28:38,506 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 08:28:38,507 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:28:50,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 08:28:50,585 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:28:50,586 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506087648]
[2024-11-03 08:28:50,586 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [506087648] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 08:28:50,586 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 08:28:50,586 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14
[2024-11-03 08:28:50,586 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930913731]
[2024-11-03 08:28:50,586 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 08:28:50,589 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-03 08:28:50,589 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:28:50,590 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-03 08:28:50,590 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182
[2024-11-03 08:28:50,590 INFO  L87              Difference]: Start difference. First operand 59 states and 79 transitions. Second operand  has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 08:28:52,232 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:28:52,232 INFO  L93              Difference]: Finished difference Result 104 states and 129 transitions.
[2024-11-03 08:28:52,235 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2024-11-03 08:28:52,235 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113
[2024-11-03 08:28:52,236 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:28:52,238 INFO  L225             Difference]: With dead ends: 104
[2024-11-03 08:28:52,241 INFO  L226             Difference]: Without dead ends: 102
[2024-11-03 08:28:52,242 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462
[2024-11-03 08:28:52,243 INFO  L432           NwaCegarLoop]: 67 mSDtfsCounter, 91 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-03 08:28:52,244 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 508 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-03 08:28:52,245 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2024-11-03 08:28:52,262 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 62.
[2024-11-03 08:28:52,263 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 40 states have (on average 1.15) internal successors, (46), 40 states have internal predecessors, (46), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 08:28:52,265 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions.
[2024-11-03 08:28:52,265 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 113
[2024-11-03 08:28:52,265 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:28:52,266 INFO  L471      AbstractCegarLoop]: Abstraction has 62 states and 82 transitions.
[2024-11-03 08:28:52,266 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 08:28:52,266 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions.
[2024-11-03 08:28:52,270 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-03 08:28:52,271 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:28:52,271 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:28:52,280 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-11-03 08:28:52,471 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:28:52,472 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:28:52,473 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:28:52,473 INFO  L85        PathProgramCache]: Analyzing trace with hash 508969851, now seen corresponding path program 1 times
[2024-11-03 08:28:52,473 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:28:52,473 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539725241]
[2024-11-03 08:28:52,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:28:52,474 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:28:52,474 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:28:52,477 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-03 08:28:52,478 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2024-11-03 08:28:52,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:28:52,559 INFO  L255         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-03 08:28:52,564 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:28:59,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2024-11-03 08:28:59,216 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:29:20,007 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 08:29:20,007 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:29:20,008 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539725241]
[2024-11-03 08:29:20,008 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [539725241] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 08:29:20,008 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 08:29:20,008 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18
[2024-11-03 08:29:20,008 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585999156]
[2024-11-03 08:29:20,008 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 08:29:20,009 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 08:29:20,009 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:29:20,010 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 08:29:20,010 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306
[2024-11-03 08:29:20,010 INFO  L87              Difference]: Start difference. First operand 62 states and 82 transitions. Second operand  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 08:29:21,790 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 08:29:28,581 WARN  L286               SmtUtils]: Spent 5.87s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-03 08:29:34,908 WARN  L286               SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-11-03 08:29:35,242 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:29:35,242 INFO  L93              Difference]: Finished difference Result 95 states and 118 transitions.
[2024-11-03 08:29:35,245 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-03 08:29:35,245 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114
[2024-11-03 08:29:35,245 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:29:35,246 INFO  L225             Difference]: With dead ends: 95
[2024-11-03 08:29:35,246 INFO  L226             Difference]: Without dead ends: 93
[2024-11-03 08:29:35,247 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380
[2024-11-03 08:29:35,248 INFO  L432           NwaCegarLoop]: 71 mSDtfsCounter, 31 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-03 08:29:35,249 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 275 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-03 08:29:35,250 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-11-03 08:29:35,265 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 65.
[2024-11-03 08:29:35,266 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 65 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 08:29:35,267 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions.
[2024-11-03 08:29:35,267 INFO  L78                 Accepts]: Start accepts. Automaton has 65 states and 86 transitions. Word has length 114
[2024-11-03 08:29:35,268 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:29:35,268 INFO  L471      AbstractCegarLoop]: Abstraction has 65 states and 86 transitions.
[2024-11-03 08:29:35,268 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 08:29:35,268 INFO  L276                IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions.
[2024-11-03 08:29:35,271 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-03 08:29:35,272 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:29:35,272 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 08:29:35,280 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
[2024-11-03 08:29:35,476 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:29:35,479 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:29:35,480 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:29:35,480 INFO  L85        PathProgramCache]: Analyzing trace with hash 507122809, now seen corresponding path program 1 times
[2024-11-03 08:29:35,480 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:29:35,481 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445477404]
[2024-11-03 08:29:35,481 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:29:35,481 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:29:35,481 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:29:35,484 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-03 08:29:35,484 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2024-11-03 08:29:35,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:29:35,558 INFO  L255         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-03 08:29:35,562 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:29:47,549 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2024-11-03 08:29:47,549 INFO  L311         TraceCheckSpWp]: Computing backward predicates...