/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-91.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 08:33:21,144 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 08:33:21,203 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 08:33:21,208 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 08:33:21,209 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 08:33:21,226 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 08:33:21,227 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 08:33:21,227 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 08:33:21,227 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 08:33:21,228 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 08:33:21,228 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 08:33:21,228 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 08:33:21,228 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 08:33:21,229 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 08:33:21,229 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 08:33:21,230 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 08:33:21,231 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 08:33:21,233 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 08:33:21,233 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 08:33:21,233 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 08:33:21,234 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 08:33:21,235 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 08:33:21,235 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 08:33:21,235 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 08:33:21,236 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 08:33:21,236 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 08:33:21,236 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 08:33:21,236 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 08:33:21,236 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 08:33:21,236 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 08:33:21,237 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 08:33:21,237 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 08:33:21,237 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 08:33:21,237 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 08:33:21,237 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:33:21,237 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 08:33:21,237 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 08:33:21,238 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 08:33:21,238 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 08:33:21,238 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 08:33:21,238 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 08:33:21,239 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 08:33:21,239 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 08:33:21,239 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 08:33:21,239 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-03 08:33:21,415 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 08:33:21,435 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 08:33:21,437 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 08:33:21,437 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 08:33:21,438 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 08:33:21,439 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-91.i
[2024-11-03 08:33:22,679 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 08:33:22,836 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 08:33:22,837 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-91.i
[2024-11-03 08:33:22,844 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8abafe529/529fc339083044b4ade40b8a0ba592f2/FLAG6ac89f119
[2024-11-03 08:33:22,857 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8abafe529/529fc339083044b4ade40b8a0ba592f2
[2024-11-03 08:33:22,859 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 08:33:22,860 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 08:33:22,863 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 08:33:22,863 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 08:33:22,866 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 08:33:22,867 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:33:22" (1/1) ...
[2024-11-03 08:33:22,867 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ea501c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:22, skipping insertion in model container
[2024-11-03 08:33:22,868 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:33:22" (1/1) ...
[2024-11-03 08:33:22,889 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 08:33:23,019 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-91.i[915,928]
[2024-11-03 08:33:23,054 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:33:23,068 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 08:33:23,079 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-91.i[915,928]
[2024-11-03 08:33:23,089 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 08:33:23,104 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 08:33:23,104 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23 WrapperNode
[2024-11-03 08:33:23,104 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 08:33:23,106 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 08:33:23,106 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 08:33:23,106 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 08:33:23,111 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,117 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,132 INFO  L138                Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90
[2024-11-03 08:33:23,133 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 08:33:23,133 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 08:33:23,133 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 08:33:23,133 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 08:33:23,141 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,141 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,144 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,152 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 08:33:23,152 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,152 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,159 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,163 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,164 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,165 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,167 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 08:33:23,168 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 08:33:23,168 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 08:33:23,168 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 08:33:23,169 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (1/1) ...
[2024-11-03 08:33:23,176 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 08:33:23,184 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 08:33:23,195 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 08:33:23,197 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 08:33:23,214 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 08:33:23,215 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 08:33:23,215 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 08:33:23,215 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 08:33:23,215 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 08:33:23,215 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 08:33:23,271 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 08:33:23,272 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 08:33:23,542 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-03 08:33:23,542 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 08:33:23,550 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 08:33:23,550 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 08:33:23,550 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:33:23 BoogieIcfgContainer
[2024-11-03 08:33:23,551 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 08:33:23,553 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 08:33:23,553 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 08:33:23,555 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 08:33:23,555 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:33:22" (1/3) ...
[2024-11-03 08:33:23,556 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24213feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:33:23, skipping insertion in model container
[2024-11-03 08:33:23,556 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:33:23" (2/3) ...
[2024-11-03 08:33:23,556 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24213feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:33:23, skipping insertion in model container
[2024-11-03 08:33:23,557 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:33:23" (3/3) ...
[2024-11-03 08:33:23,557 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-91.i
[2024-11-03 08:33:23,569 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 08:33:23,569 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 08:33:23,623 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 08:33:23,627 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;@4e82054c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 08:33:23,627 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 08:33:23,633 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 42 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-03 08:33:23,640 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-11-03 08:33:23,641 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:33:23,641 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:33:23,642 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:33:23,647 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:33:23,647 INFO  L85        PathProgramCache]: Analyzing trace with hash 1820528867, now seen corresponding path program 1 times
[2024-11-03 08:33:23,653 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:33:23,654 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910727030]
[2024-11-03 08:33:23,654 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:33:23,656 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 08:33:23,656 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:33:23,659 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 08:33:23,660 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 08:33:23,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:33:23,823 INFO  L255         TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-03 08:33:23,840 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:33:26,085 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-03 08:33:26,086 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:33:46,372 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-03 08:33:46,373 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:33:46,373 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910727030]
[2024-11-03 08:33:46,374 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [910727030] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 08:33:46,374 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 08:33:46,374 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17
[2024-11-03 08:33:46,376 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469908451]
[2024-11-03 08:33:46,376 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 08:33:46,379 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 08:33:46,379 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:33:46,393 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 08:33:46,394 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272
[2024-11-03 08:33:46,395 INFO  L87              Difference]: Start difference. First operand  has 42 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand  has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-03 08:33:54,548 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:33:54,549 INFO  L93              Difference]: Finished difference Result 118 states and 193 transitions.
[2024-11-03 08:33:54,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 08:33:54,552 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 73
[2024-11-03 08:33:54,552 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:33:54,557 INFO  L225             Difference]: With dead ends: 118
[2024-11-03 08:33:54,557 INFO  L226             Difference]: Without dead ends: 79
[2024-11-03 08:33:54,559 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380
[2024-11-03 08:33:54,561 INFO  L432           NwaCegarLoop]: 70 mSDtfsCounter, 86 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2024-11-03 08:33:54,562 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 273 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2024-11-03 08:33:54,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2024-11-03 08:33:54,596 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73.
[2024-11-03 08:33:54,599 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 73 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 08:33:54,600 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 97 transitions.
[2024-11-03 08:33:54,602 INFO  L78                 Accepts]: Start accepts. Automaton has 73 states and 97 transitions. Word has length 73
[2024-11-03 08:33:54,602 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:33:54,602 INFO  L471      AbstractCegarLoop]: Abstraction has 73 states and 97 transitions.
[2024-11-03 08:33:54,602 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-03 08:33:54,603 INFO  L276                IsEmpty]: Start isEmpty. Operand 73 states and 97 transitions.
[2024-11-03 08:33:54,604 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-11-03 08:33:54,604 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:33:54,604 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:33:54,612 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-03 08:33:54,808 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 08:33:54,809 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:33:54,809 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:33:54,810 INFO  L85        PathProgramCache]: Analyzing trace with hash 1877787169, now seen corresponding path program 1 times
[2024-11-03 08:33:54,810 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:33:54,810 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286387672]
[2024-11-03 08:33:54,810 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:33:54,810 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 08:33:54,810 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:33:54,811 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 08:33:54,812 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 08:33:54,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:33:54,913 INFO  L255         TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-03 08:33:54,917 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:33:57,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-03 08:33:57,147 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:34:05,122 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-11-03 08:34:05,122 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:34:05,122 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286387672]
[2024-11-03 08:34:05,122 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [286387672] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 08:34:05,122 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 08:34:05,123 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21
[2024-11-03 08:34:05,123 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36445928]
[2024-11-03 08:34:05,123 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 08:34:05,124 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-03 08:34:05,124 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:34:05,125 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-03 08:34:05,125 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420
[2024-11-03 08:34:05,125 INFO  L87              Difference]: Start difference. First operand 73 states and 97 transitions. Second operand  has 21 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22)
[2024-11-03 08:34:16,682 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:34:16,682 INFO  L93              Difference]: Finished difference Result 227 states and 297 transitions.
[2024-11-03 08:34:16,684 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. 
[2024-11-03 08:34:16,684 INFO  L78                 Accepts]: Start accepts. Automaton has  has 21 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 73
[2024-11-03 08:34:16,684 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:34:16,687 INFO  L225             Difference]: With dead ends: 227
[2024-11-03 08:34:16,687 INFO  L226             Difference]: Without dead ends: 157
[2024-11-03 08:34:16,688 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=392, Invalid=1090, Unknown=0, NotChecked=0, Total=1482
[2024-11-03 08:34:16,689 INFO  L432           NwaCegarLoop]: 66 mSDtfsCounter, 130 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2024-11-03 08:34:16,689 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 430 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2024-11-03 08:34:16,690 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2024-11-03 08:34:16,707 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 51.
[2024-11-03 08:34:16,708 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-03 08:34:16,709 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions.
[2024-11-03 08:34:16,710 INFO  L78                 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 73
[2024-11-03 08:34:16,711 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:34:16,711 INFO  L471      AbstractCegarLoop]: Abstraction has 51 states and 66 transitions.
[2024-11-03 08:34:16,711 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 4 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22)
[2024-11-03 08:34:16,711 INFO  L276                IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions.
[2024-11-03 08:34:16,712 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-03 08:34:16,713 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:34:16,713 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:34:16,722 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 08:34:16,913 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 08:34:16,914 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:34:16,914 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:34:16,914 INFO  L85        PathProgramCache]: Analyzing trace with hash 368106766, now seen corresponding path program 1 times
[2024-11-03 08:34:16,914 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:34:16,914 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460944166]
[2024-11-03 08:34:16,915 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:34:16,915 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 08:34:16,915 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:34:16,916 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 08:34:16,917 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 08:34:17,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:34:17,030 INFO  L255         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-03 08:34:17,033 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:34:18,697 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-03 08:34:18,697 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 08:34:42,792 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-03 08:34:42,792 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 08:34:42,793 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460944166]
[2024-11-03 08:34:42,793 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1460944166] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 08:34:42,793 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 08:34:42,793 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19
[2024-11-03 08:34:42,793 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725062439]
[2024-11-03 08:34:42,793 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 08:34:42,794 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-03 08:34:42,794 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 08:34:42,794 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-03 08:34:42,794 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342
[2024-11-03 08:34:42,794 INFO  L87              Difference]: Start difference. First operand 51 states and 66 transitions. Second operand  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-03 08:35:01,695 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 08:35:01,696 INFO  L93              Difference]: Finished difference Result 100 states and 129 transitions.
[2024-11-03 08:35:01,700 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 08:35:01,700 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74
[2024-11-03 08:35:01,701 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 08:35:01,702 INFO  L225             Difference]: With dead ends: 100
[2024-11-03 08:35:01,702 INFO  L226             Difference]: Without dead ends: 98
[2024-11-03 08:35:01,702 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552
[2024-11-03 08:35:01,703 INFO  L432           NwaCegarLoop]: 69 mSDtfsCounter, 93 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time
[2024-11-03 08:35:01,703 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 281 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time]
[2024-11-03 08:35:01,704 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2024-11-03 08:35:01,717 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 49.
[2024-11-03 08:35:01,718 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-03 08:35:01,718 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions.
[2024-11-03 08:35:01,718 INFO  L78                 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 74
[2024-11-03 08:35:01,719 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 08:35:01,719 INFO  L471      AbstractCegarLoop]: Abstraction has 49 states and 62 transitions.
[2024-11-03 08:35:01,719 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-03 08:35:01,720 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions.
[2024-11-03 08:35:01,721 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-03 08:35:01,721 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 08:35:01,721 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:01,728 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 08:35:01,922 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 08:35:01,923 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 08:35:01,923 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 08:35:01,923 INFO  L85        PathProgramCache]: Analyzing trace with hash 366259724, now seen corresponding path program 1 times
[2024-11-03 08:35:01,923 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 08:35:01,923 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484505909]
[2024-11-03 08:35:01,923 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 08:35:01,924 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 08:35:01,924 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-03 08:35:01,925 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 08:35:01,925 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 08:35:02,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 08:35:02,020 INFO  L255         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-03 08:35:02,023 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 08:35:02,700 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked.
[2024-11-03 08:35:02,701 INFO  L311         TraceCheckSpWp]: Computing backward predicates...