/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-66.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:35:31,051 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:35:31,134 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 12:35:31,140 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:35:31,141 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:35:31,166 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:35:31,167 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:35:31,167 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:35:31,168 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:35:31,169 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:35:31,169 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:35:31,170 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:35:31,170 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:35:31,170 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:35:31,171 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:35:31,171 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:35:31,171 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:35:31,172 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:35:31,175 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:35:31,176 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:35:31,177 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:35:31,177 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:35:31,177 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:35:31,178 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:35:31,178 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:35:31,178 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:35:31,178 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:35:31,179 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:35:31,179 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:35:31,179 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:35:31,179 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:35:31,180 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:35:31,180 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:35:31,180 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:35:31,180 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:35:31,181 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:35:31,181 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:35:31,181 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:35:31,182 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:35:31,182 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:35:31,182 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:35:31,183 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:35:31,183 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:35:31,183 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:35:31,184 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:35:31,399 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:35:31,419 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:35:31,423 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:35:31,424 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:35:31,424 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:35:31,425 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-66.i
[2024-11-03 12:35:32,803 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:35:32,984 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:35:32,985 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-66.i
[2024-11-03 12:35:32,996 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec36bfc69/150023f80fe040e1a3f2b49f474b5891/FLAG23888462a
[2024-11-03 12:35:33,011 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec36bfc69/150023f80fe040e1a3f2b49f474b5891
[2024-11-03 12:35:33,012 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:35:33,014 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:35:33,015 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:35:33,015 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:35:33,019 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:35:33,020 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,021 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e03d528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33, skipping insertion in model container
[2024-11-03 12:35:33,021 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,053 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:35:33,193 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-66.i[916,929]
[2024-11-03 12:35:33,264 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:35:33,280 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:35:33,288 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-66.i[916,929]
[2024-11-03 12:35:33,321 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:35:33,343 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:35:33,344 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33 WrapperNode
[2024-11-03 12:35:33,344 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:35:33,345 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:35:33,345 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:35:33,346 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:35:33,351 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,372 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,407 INFO  L138                Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 194
[2024-11-03 12:35:33,407 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:35:33,408 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:35:33,408 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:35:33,408 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:35:33,422 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,422 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,428 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,442 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 12:35:33,443 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,443 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,453 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,456 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,459 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,460 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,464 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:35:33,465 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:35:33,465 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:35:33,465 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:35:33,466 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (1/1) ...
[2024-11-03 12:35:33,475 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:35:33,487 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:35:33,502 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 12:35:33,505 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 12:35:33,529 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:35:33,529 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:35:33,529 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:35:33,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:35:33,530 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:35:33,531 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:35:33,643 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:35:33,645 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:35:42,196 INFO  L?                        ?]: Removed 34 outVars from TransFormulas that were not future-live.
[2024-11-03 12:35:42,197 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:35:42,211 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:35:42,211 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:35:42,212 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:35:42 BoogieIcfgContainer
[2024-11-03 12:35:42,212 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:35:42,214 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:35:42,214 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:35:42,217 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:35:42,217 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:35:33" (1/3) ...
[2024-11-03 12:35:42,218 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785b0633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:35:42, skipping insertion in model container
[2024-11-03 12:35:42,218 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:33" (2/3) ...
[2024-11-03 12:35:42,218 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785b0633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:35:42, skipping insertion in model container
[2024-11-03 12:35:42,218 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:35:42" (3/3) ...
[2024-11-03 12:35:42,219 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-66.i
[2024-11-03 12:35:42,237 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:35:42,238 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:35:42,302 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:35:42,306 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;@51e03492, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:35:42,307 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:35:42,311 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 81 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 58 states have internal predecessors, (84), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-03 12:35:42,324 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-03 12:35:42,325 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:35:42,326 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:42,326 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:35:42,330 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:35:42,330 INFO  L85        PathProgramCache]: Analyzing trace with hash 1080973051, now seen corresponding path program 1 times
[2024-11-03 12:35:42,336 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:35:42,336 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973587135]
[2024-11-03 12:35:42,337 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:35:42,338 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:35:42,338 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:35:42,340 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:35:42,341 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:35:42,531 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:35:42,537 INFO  L255         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:35:42,547 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:35:42,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked.
[2024-11-03 12:35:42,592 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:35:43,527 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked.
[2024-11-03 12:35:43,528 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:35:43,528 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973587135]
[2024-11-03 12:35:43,529 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1973587135] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:35:43,529 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:35:43,529 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:35:43,530 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885008532]
[2024-11-03 12:35:43,531 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:35:43,535 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:35:43,536 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:35:43,564 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:35:43,564 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:35:43,567 INFO  L87              Difference]: Start difference. First operand  has 81 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 58 states have internal predecessors, (84), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-03 12:35:43,602 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:35:43,603 INFO  L93              Difference]: Finished difference Result 155 states and 267 transitions.
[2024-11-03 12:35:43,604 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:35:43,605 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 147
[2024-11-03 12:35:43,605 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:35:43,614 INFO  L225             Difference]: With dead ends: 155
[2024-11-03 12:35:43,614 INFO  L226             Difference]: Without dead ends: 77
[2024-11-03 12:35:43,618 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:35:43,624 INFO  L432           NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 12:35:43,625 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:35:43,642 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2024-11-03 12:35:43,673 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77.
[2024-11-03 12:35:43,675 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 77 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 54 states have internal predecessors, (77), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2024-11-03 12:35:43,678 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 119 transitions.
[2024-11-03 12:35:43,683 INFO  L78                 Accepts]: Start accepts. Automaton has 77 states and 119 transitions. Word has length 147
[2024-11-03 12:35:43,683 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:35:43,683 INFO  L471      AbstractCegarLoop]: Abstraction has 77 states and 119 transitions.
[2024-11-03 12:35:43,684 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-03 12:35:43,684 INFO  L276                IsEmpty]: Start isEmpty. Operand 77 states and 119 transitions.
[2024-11-03 12:35:43,689 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-03 12:35:43,689 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:35:43,689 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:43,693 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 12:35:43,890 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:35:43,891 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:35:43,892 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:35:43,892 INFO  L85        PathProgramCache]: Analyzing trace with hash 1163602625, now seen corresponding path program 1 times
[2024-11-03 12:35:43,892 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:35:43,892 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347007187]
[2024-11-03 12:35:43,893 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:35:43,893 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:35:43,893 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:35:43,896 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:35:43,897 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:35:44,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:35:44,010 INFO  L255         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 12:35:44,020 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:35:46,915 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-03 12:35:46,915 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:35:48,570 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-03 12:35:48,571 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:35:48,571 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347007187]
[2024-11-03 12:35:48,571 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [347007187] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:35:48,571 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:35:48,572 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4
[2024-11-03 12:35:48,572 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729272084]
[2024-11-03 12:35:48,572 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:35:48,575 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 12:35:48,575 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:35:48,576 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 12:35:48,576 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:35:48,577 INFO  L87              Difference]: Start difference. First operand 77 states and 119 transitions. Second operand  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2024-11-03 12:35:53,121 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:35:57,130 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:01,609 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:05,616 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:05,617 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:36:05,617 INFO  L93              Difference]: Finished difference Result 248 states and 390 transitions.
[2024-11-03 12:36:05,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 12:36:05,726 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 147
[2024-11-03 12:36:05,727 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:36:05,729 INFO  L225             Difference]: With dead ends: 248
[2024-11-03 12:36:05,729 INFO  L226             Difference]: Without dead ends: 174
[2024-11-03 12:36:05,730 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 12:36:05,732 INFO  L432           NwaCegarLoop]: 115 mSDtfsCounter, 147 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 50 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time
[2024-11-03 12:36:05,732 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 332 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 15 Invalid, 4 Unknown, 0 Unchecked, 16.9s Time]
[2024-11-03 12:36:05,733 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 174 states.
[2024-11-03 12:36:05,755 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 123.
[2024-11-03 12:36:05,756 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 123 states, 78 states have (on average 1.3333333333333333) internal successors, (104), 78 states have internal predecessors, (104), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2024-11-03 12:36:05,757 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 188 transitions.
[2024-11-03 12:36:05,758 INFO  L78                 Accepts]: Start accepts. Automaton has 123 states and 188 transitions. Word has length 147
[2024-11-03 12:36:05,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:36:05,759 INFO  L471      AbstractCegarLoop]: Abstraction has 123 states and 188 transitions.
[2024-11-03 12:36:05,759 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2024-11-03 12:36:05,759 INFO  L276                IsEmpty]: Start isEmpty. Operand 123 states and 188 transitions.
[2024-11-03 12:36:05,761 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-03 12:36:05,761 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:36:05,762 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:05,765 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:36:05,962 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:05,963 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:36:05,963 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:36:05,963 INFO  L85        PathProgramCache]: Analyzing trace with hash 1382457343, now seen corresponding path program 1 times
[2024-11-03 12:36:05,964 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:36:05,964 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645949164]
[2024-11-03 12:36:05,964 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:36:05,964 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:36:05,964 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:05,966 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:36:05,967 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:36:06,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:36:06,111 INFO  L255         TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 12:36:06,120 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:36:09,439 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 20 proven. 60 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 12:36:09,440 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:36:12,432 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked.
[2024-11-03 12:36:12,433 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:36:12,433 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645949164]
[2024-11-03 12:36:12,433 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [645949164] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:36:12,433 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:36:12,434 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2024-11-03 12:36:12,434 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811243941]
[2024-11-03 12:36:12,434 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:36:12,435 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-03 12:36:12,435 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:36:12,436 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-03 12:36:12,436 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-11-03 12:36:12,436 INFO  L87              Difference]: Start difference. First operand 123 states and 188 transitions. Second operand  has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 3 states have call successors, (42)
[2024-11-03 12:36:19,405 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:23,411 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:27,419 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:31,425 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:35,428 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:35,671 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:36:35,672 INFO  L93              Difference]: Finished difference Result 211 states and 316 transitions.
[2024-11-03 12:36:35,673 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 12:36:35,674 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 3 states have call successors, (42) Word has length 147
[2024-11-03 12:36:35,674 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:36:35,676 INFO  L225             Difference]: With dead ends: 211
[2024-11-03 12:36:35,677 INFO  L226             Difference]: Without dead ends: 135
[2024-11-03 12:36:35,678 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2024-11-03 12:36:35,679 INFO  L432           NwaCegarLoop]: 91 mSDtfsCounter, 154 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time
[2024-11-03 12:36:35,679 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 291 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 5 Unknown, 0 Unchecked, 22.8s Time]
[2024-11-03 12:36:35,680 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 135 states.
[2024-11-03 12:36:35,699 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131.
[2024-11-03 12:36:35,703 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 131 states, 84 states have (on average 1.2976190476190477) internal successors, (109), 84 states have internal predecessors, (109), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2024-11-03 12:36:35,705 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 193 transitions.
[2024-11-03 12:36:35,706 INFO  L78                 Accepts]: Start accepts. Automaton has 131 states and 193 transitions. Word has length 147
[2024-11-03 12:36:35,706 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:36:35,706 INFO  L471      AbstractCegarLoop]: Abstraction has 131 states and 193 transitions.
[2024-11-03 12:36:35,707 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (42), 2 states have call predecessors, (42), 3 states have call successors, (42)
[2024-11-03 12:36:35,707 INFO  L276                IsEmpty]: Start isEmpty. Operand 131 states and 193 transitions.
[2024-11-03 12:36:35,709 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-03 12:36:35,709 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:36:35,709 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:35,719 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 12:36:35,910 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:35,911 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:36:35,911 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:36:35,911 INFO  L85        PathProgramCache]: Analyzing trace with hash -205890559, now seen corresponding path program 1 times
[2024-11-03 12:36:35,911 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:36:35,912 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842348850]
[2024-11-03 12:36:35,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:36:35,912 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:36:35,912 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:35,914 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:36:35,917 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:36:36,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:36:36,010 INFO  L255         TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 12:36:36,016 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:36:39,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-03 12:36:39,854 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:36:42,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-03 12:36:42,471 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:36:42,471 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842348850]
[2024-11-03 12:36:42,471 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1842348850] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:36:42,471 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:36:42,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3
[2024-11-03 12:36:42,472 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67203117]
[2024-11-03 12:36:42,472 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:36:42,472 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 12:36:42,473 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:36:42,477 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 12:36:42,477 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 12:36:42,478 INFO  L87              Difference]: Start difference. First operand 131 states and 193 transitions. Second operand  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2024-11-03 12:36:46,939 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:47,073 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:36:47,073 INFO  L93              Difference]: Finished difference Result 211 states and 313 transitions.
[2024-11-03 12:36:47,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 12:36:47,074 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 147
[2024-11-03 12:36:47,075 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:36:47,076 INFO  L225             Difference]: With dead ends: 211
[2024-11-03 12:36:47,077 INFO  L226             Difference]: Without dead ends: 131
[2024-11-03 12:36:47,078 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 12:36:47,079 INFO  L432           NwaCegarLoop]: 110 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2024-11-03 12:36:47,079 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 110 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time]
[2024-11-03 12:36:47,080 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 131 states.
[2024-11-03 12:36:47,098 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131.
[2024-11-03 12:36:47,099 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 131 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 84 states have internal predecessors, (107), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2024-11-03 12:36:47,100 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 191 transitions.
[2024-11-03 12:36:47,101 INFO  L78                 Accepts]: Start accepts. Automaton has 131 states and 191 transitions. Word has length 147
[2024-11-03 12:36:47,101 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:36:47,101 INFO  L471      AbstractCegarLoop]: Abstraction has 131 states and 191 transitions.
[2024-11-03 12:36:47,102 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2024-11-03 12:36:47,102 INFO  L276                IsEmpty]: Start isEmpty. Operand 131 states and 191 transitions.
[2024-11-03 12:36:47,104 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2024-11-03 12:36:47,104 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:36:47,104 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:47,111 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0
[2024-11-03 12:36:47,307 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:47,307 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:36:47,308 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:36:47,308 INFO  L85        PathProgramCache]: Analyzing trace with hash 495174019, now seen corresponding path program 1 times
[2024-11-03 12:36:47,308 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:36:47,308 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606107632]
[2024-11-03 12:36:47,308 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:36:47,309 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:36:47,309 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:47,310 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:36:47,311 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process
[2024-11-03 12:36:47,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:36:47,399 INFO  L255         TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 12:36:47,406 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:36:47,760 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-03 12:36:47,760 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:36:49,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked.
[2024-11-03 12:36:49,080 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:36:49,080 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606107632]
[2024-11-03 12:36:49,080 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1606107632] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:36:49,080 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:36:49,080 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2024-11-03 12:36:49,081 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420272860]
[2024-11-03 12:36:49,081 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:36:49,081 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 12:36:49,081 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:36:49,082 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 12:36:49,082 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:36:49,082 INFO  L87              Difference]: Start difference. First operand 131 states and 191 transitions. Second operand  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-03 12:36:53,654 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:57,659 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:36:57,665 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:36:57,665 INFO  L93              Difference]: Finished difference Result 211 states and 309 transitions.
[2024-11-03 12:36:57,809 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 12:36:57,810 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 147
[2024-11-03 12:36:57,810 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:36:57,812 INFO  L225             Difference]: With dead ends: 211
[2024-11-03 12:36:57,812 INFO  L226             Difference]: Without dead ends: 131
[2024-11-03 12:36:57,813 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 12:36:57,814 INFO  L432           NwaCegarLoop]: 108 mSDtfsCounter, 109 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time
[2024-11-03 12:36:57,814 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 215 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time]
[2024-11-03 12:36:57,815 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 131 states.
[2024-11-03 12:36:57,832 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131.
[2024-11-03 12:36:57,833 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 131 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 84 states have internal predecessors, (106), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2024-11-03 12:36:57,834 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 190 transitions.
[2024-11-03 12:36:57,834 INFO  L78                 Accepts]: Start accepts. Automaton has 131 states and 190 transitions. Word has length 147
[2024-11-03 12:36:57,835 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:36:57,835 INFO  L471      AbstractCegarLoop]: Abstraction has 131 states and 190 transitions.
[2024-11-03 12:36:57,835 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21)
[2024-11-03 12:36:57,835 INFO  L276                IsEmpty]: Start isEmpty. Operand 131 states and 190 transitions.
[2024-11-03 12:36:57,837 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2024-11-03 12:36:57,837 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:36:57,837 INFO  L215           NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:57,844 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0
[2024-11-03 12:36:58,039 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:58,040 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:36:58,041 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:36:58,041 INFO  L85        PathProgramCache]: Analyzing trace with hash -1775972711, now seen corresponding path program 1 times
[2024-11-03 12:36:58,041 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:36:58,041 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183012876]
[2024-11-03 12:36:58,041 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:36:58,041 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:36:58,042 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:36:58,044 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:36:58,045 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process
[2024-11-03 12:36:58,134 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:36:58,136 INFO  L255         TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-03 12:36:58,139 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:37:06,318 INFO  L134       CoverageAnalysis]: Checked inductivity of 840 backedges. 134 proven. 3 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked.
[2024-11-03 12:37:06,318 INFO  L311         TraceCheckSpWp]: Computing backward predicates...