/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_amount50_file-79.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:32:15,307 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:32:15,384 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 13:32:15,390 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:32:15,390 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:32:15,416 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:32:15,416 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:32:15,416 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:32:15,417 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:32:15,417 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:32:15,418 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:32:15,418 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:32:15,418 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:32:15,419 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:32:15,420 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:32:15,422 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:32:15,422 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:32:15,423 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:32:15,423 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:32:15,423 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:32:15,424 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:32:15,428 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:32:15,428 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:32:15,428 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:32:15,429 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:32:15,429 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:32:15,429 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:32:15,429 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:32:15,429 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:32:15,430 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:32:15,430 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:32:15,430 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:32:15,430 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:32:15,431 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:32:15,431 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:32:15,431 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:32:15,431 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:32:15,432 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:32:15,432 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:32:15,432 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:32:15,432 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:32:15,433 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:32:15,433 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:32:15,433 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:32:15,433 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:32:15,640 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:32:15,661 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:32:15,664 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:32:15,664 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:32:15,665 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:32:15,666 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-79.i
[2024-11-03 13:32:16,982 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:32:17,206 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:32:17,207 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-79.i
[2024-11-03 13:32:17,219 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1b0d0c8f/41770aa0cee844468e6c1b54e1f007ba/FLAG33d2e53b3
[2024-11-03 13:32:17,237 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1b0d0c8f/41770aa0cee844468e6c1b54e1f007ba
[2024-11-03 13:32:17,240 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:32:17,241 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:32:17,243 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:32:17,243 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:32:17,249 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:32:17,249 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,250 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f878a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17, skipping insertion in model container
[2024-11-03 13:32:17,250 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,277 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:32:17,442 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-79.i[915,928]
[2024-11-03 13:32:17,497 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:32:17,512 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:32:17,522 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-79.i[915,928]
[2024-11-03 13:32:17,565 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:32:17,583 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:32:17,583 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17 WrapperNode
[2024-11-03 13:32:17,584 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:32:17,585 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:32:17,585 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:32:17,585 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:32:17,590 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,601 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,632 INFO  L138                Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 163
[2024-11-03 13:32:17,633 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:32:17,634 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:32:17,634 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:32:17,634 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:32:17,652 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,652 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,657 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,671 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 13:32:17,675 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,675 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,686 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,688 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,695 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,696 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,705 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:32:17,706 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:32:17,706 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:32:17,706 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:32:17,707 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (1/1) ...
[2024-11-03 13:32:17,714 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:32:17,726 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:32:17,749 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 13:32:17,754 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 13:32:17,776 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:32:17,777 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:32:17,777 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 13:32:17,777 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 13:32:17,778 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:32:17,779 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:32:17,871 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:32:17,873 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:32:24,186 INFO  L?                        ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-03 13:32:24,186 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:32:24,198 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:32:24,198 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 13:32:24,199 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:32:24 BoogieIcfgContainer
[2024-11-03 13:32:24,199 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:32:24,202 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:32:24,202 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:32:24,206 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:32:24,206 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:32:17" (1/3) ...
[2024-11-03 13:32:24,207 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60607b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:32:24, skipping insertion in model container
[2024-11-03 13:32:24,207 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:32:17" (2/3) ...
[2024-11-03 13:32:24,207 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60607b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:32:24, skipping insertion in model container
[2024-11-03 13:32:24,208 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:32:24" (3/3) ...
[2024-11-03 13:32:24,209 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-79.i
[2024-11-03 13:32:24,224 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:32:24,224 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:32:24,296 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:32:24,305 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;@a97341c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:32:24,305 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:32:24,310 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 72 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 45 states have internal predecessors, (59), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2024-11-03 13:32:24,321 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2024-11-03 13:32:24,322 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:32:24,322 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:24,323 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:32:24,327 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:32:24,327 INFO  L85        PathProgramCache]: Analyzing trace with hash 1617438631, now seen corresponding path program 1 times
[2024-11-03 13:32:24,335 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:32:24,335 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673061821]
[2024-11-03 13:32:24,335 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:32:24,337 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:32:24,337 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:32:24,338 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 13:32:24,339 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:32:24,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:32:24,494 INFO  L255         TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 13:32:24,506 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:32:24,567 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked.
[2024-11-03 13:32:24,567 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:32:24,896 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked.
[2024-11-03 13:32:24,897 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:32:24,897 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673061821]
[2024-11-03 13:32:24,898 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [673061821] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:32:24,899 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:32:24,900 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 13:32:24,901 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634747625]
[2024-11-03 13:32:24,902 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:32:24,908 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 13:32:24,909 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:32:24,932 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 13:32:24,933 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:32:24,935 INFO  L87              Difference]: Start difference. First operand  has 72 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 45 states have internal predecessors, (59), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand  has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25)
[2024-11-03 13:32:24,965 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:32:24,965 INFO  L93              Difference]: Finished difference Result 137 states and 237 transitions.
[2024-11-03 13:32:24,966 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 13:32:24,967 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158
[2024-11-03 13:32:24,968 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:32:24,974 INFO  L225             Difference]: With dead ends: 137
[2024-11-03 13:32:24,975 INFO  L226             Difference]: Without dead ends: 68
[2024-11-03 13:32:24,979 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 314 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 13:32:24,984 INFO  L432           NwaCegarLoop]: 102 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, 102 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 13:32:24,985 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 13:32:25,000 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2024-11-03 13:32:25,019 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2024-11-03 13:32:25,020 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2024-11-03 13:32:25,022 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 102 transitions.
[2024-11-03 13:32:25,024 INFO  L78                 Accepts]: Start accepts. Automaton has 68 states and 102 transitions. Word has length 158
[2024-11-03 13:32:25,024 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:32:25,025 INFO  L471      AbstractCegarLoop]: Abstraction has 68 states and 102 transitions.
[2024-11-03 13:32:25,025 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25)
[2024-11-03 13:32:25,025 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 102 transitions.
[2024-11-03 13:32:25,028 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2024-11-03 13:32:25,028 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:32:25,029 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:25,031 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 13:32:25,229 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:32:25,230 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:32:25,231 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:32:25,231 INFO  L85        PathProgramCache]: Analyzing trace with hash -1590099047, now seen corresponding path program 1 times
[2024-11-03 13:32:25,231 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:32:25,231 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155229211]
[2024-11-03 13:32:25,232 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:32:25,232 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:32:25,232 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:32:25,233 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 13:32:25,234 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:32:25,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:32:25,367 INFO  L255         TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 13:32:25,377 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:32:26,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2024-11-03 13:32:26,195 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:32:26,645 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2024-11-03 13:32:26,646 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:32:26,646 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155229211]
[2024-11-03 13:32:26,646 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1155229211] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:32:26,646 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:32:26,647 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 13:32:26,647 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072508657]
[2024-11-03 13:32:26,647 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:32:26,650 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 13:32:26,650 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:32:26,651 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 13:32:26,651 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-03 13:32:26,651 INFO  L87              Difference]: Start difference. First operand 68 states and 102 transitions. Second operand  has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2024-11-03 13:32:29,062 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:32:33,933 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:32:35,027 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:32:35,151 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:32:35,151 INFO  L93              Difference]: Finished difference Result 314 states and 467 transitions.
[2024-11-03 13:32:35,151 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-03 13:32:35,151 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 158
[2024-11-03 13:32:35,152 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:32:35,156 INFO  L225             Difference]: With dead ends: 314
[2024-11-03 13:32:35,156 INFO  L226             Difference]: Without dead ends: 249
[2024-11-03 13:32:35,157 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2024-11-03 13:32:35,159 INFO  L432           NwaCegarLoop]: 95 mSDtfsCounter, 222 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 135 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time
[2024-11-03 13:32:35,159 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 532 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time]
[2024-11-03 13:32:35,160 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 249 states.
[2024-11-03 13:32:35,197 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 130.
[2024-11-03 13:32:35,200 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 130 states, 77 states have (on average 1.2337662337662338) internal successors, (95), 77 states have internal predecessors, (95), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2024-11-03 13:32:35,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 195 transitions.
[2024-11-03 13:32:35,202 INFO  L78                 Accepts]: Start accepts. Automaton has 130 states and 195 transitions. Word has length 158
[2024-11-03 13:32:35,203 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:32:35,207 INFO  L471      AbstractCegarLoop]: Abstraction has 130 states and 195 transitions.
[2024-11-03 13:32:35,207 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2024-11-03 13:32:35,207 INFO  L276                IsEmpty]: Start isEmpty. Operand 130 states and 195 transitions.
[2024-11-03 13:32:35,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2024-11-03 13:32:35,209 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:32:35,210 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:35,213 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 13:32:35,410 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:32:35,411 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:32:35,411 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:32:35,411 INFO  L85        PathProgramCache]: Analyzing trace with hash -2110470832, now seen corresponding path program 1 times
[2024-11-03 13:32:35,412 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:32:35,412 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914628079]
[2024-11-03 13:32:35,412 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:32:35,412 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:32:35,412 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:32:35,414 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 13:32:35,415 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 13:32:35,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:32:35,500 INFO  L255         TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 13:32:35,519 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:32:35,558 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2024-11-03 13:32:35,558 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:32:35,865 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2024-11-03 13:32:35,866 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:32:35,866 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914628079]
[2024-11-03 13:32:35,866 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [914628079] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:32:35,866 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:32:35,866 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-03 13:32:35,867 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650656992]
[2024-11-03 13:32:35,867 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:32:35,867 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 13:32:35,867 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:32:35,868 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 13:32:35,868 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 13:32:35,868 INFO  L87              Difference]: Start difference. First operand 130 states and 195 transitions. Second operand  has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2024-11-03 13:32:38,665 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:32:38,727 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:32:38,727 INFO  L93              Difference]: Finished difference Result 273 states and 405 transitions.
[2024-11-03 13:32:38,728 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 13:32:38,728 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 160
[2024-11-03 13:32:38,728 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:32:38,730 INFO  L225             Difference]: With dead ends: 273
[2024-11-03 13:32:38,730 INFO  L226             Difference]: Without dead ends: 146
[2024-11-03 13:32:38,735 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 13:32:38,736 INFO  L432           NwaCegarLoop]: 111 mSDtfsCounter, 34 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2024-11-03 13:32:38,737 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 253 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2024-11-03 13:32:38,737 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2024-11-03 13:32:38,766 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145.
[2024-11-03 13:32:38,767 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 145 states, 86 states have (on average 1.186046511627907) internal successors, (102), 87 states have internal predecessors, (102), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54)
[2024-11-03 13:32:38,772 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 210 transitions.
[2024-11-03 13:32:38,772 INFO  L78                 Accepts]: Start accepts. Automaton has 145 states and 210 transitions. Word has length 160
[2024-11-03 13:32:38,773 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:32:38,773 INFO  L471      AbstractCegarLoop]: Abstraction has 145 states and 210 transitions.
[2024-11-03 13:32:38,773 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2024-11-03 13:32:38,774 INFO  L276                IsEmpty]: Start isEmpty. Operand 145 states and 210 transitions.
[2024-11-03 13:32:38,779 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2024-11-03 13:32:38,779 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:32:38,780 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:38,783 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 13:32:38,980 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:32:38,981 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:32:38,981 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:32:38,981 INFO  L85        PathProgramCache]: Analyzing trace with hash -1973326676, now seen corresponding path program 1 times
[2024-11-03 13:32:38,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:32:38,982 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191641129]
[2024-11-03 13:32:38,982 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:32:38,982 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:32:38,982 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:32:38,984 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 13:32:38,985 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 13:32:39,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:32:39,112 INFO  L255         TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-03 13:32:39,119 INFO  L278         TraceCheckSpWp]: Computing forward predicates...