/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 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-67.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:19:15,399 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:19:15,489 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 01:19:15,495 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:19:15,496 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:19:15,524 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:19:15,524 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:19:15,525 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:19:15,525 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:19:15,529 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:19:15,529 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:19:15,529 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:19:15,530 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:19:15,530 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:19:15,530 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:19:15,530 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:19:15,531 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:19:15,531 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:19:15,531 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:19:15,531 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:19:15,531 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:19:15,533 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:19:15,533 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:19:15,534 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:19:15,534 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:19:15,534 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:19:15,534 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:19:15,534 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:19:15,535 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:19:15,535 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:19:15,535 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:19:15,535 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:19:15,535 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:19:15,536 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:19:15,536 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:19:15,536 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:19:15,536 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:19:15,536 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:19:15,537 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:19:15,537 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:15,538 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:19:15,538 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:19:15,538 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:19:15,539 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:19:15,539 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:15,755 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:19:15,774 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:19:15,778 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:19:15,778 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:19:15,779 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:19:15,780 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-67.i
[2024-11-03 01:19:17,260 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:19:17,533 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:19:17,534 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-67.i
[2024-11-03 01:19:17,552 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79843d7fa/e70862c7c3724c2093e36b1c5653c3ee/FLAG430cf77f1
[2024-11-03 01:19:17,569 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79843d7fa/e70862c7c3724c2093e36b1c5653c3ee
[2024-11-03 01:19:17,572 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:19:17,574 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:19:17,575 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:19:17,576 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:19:17,583 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:19:17,585 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:19:17" (1/1) ...
[2024-11-03 01:19:17,586 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9eea91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:17, skipping insertion in model container
[2024-11-03 01:19:17,586 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:19:17" (1/1) ...
[2024-11-03 01:19:17,641 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:19:17,839 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_amount250_file-67.i[916,929]
[2024-11-03 01:19:17,987 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:19:18,005 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:19:18,025 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_amount250_file-67.i[916,929]
[2024-11-03 01:19:18,105 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:19:18,133 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:19:18,134 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18 WrapperNode
[2024-11-03 01:19:18,134 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:19:18,135 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:19:18,135 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:19:18,135 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:19:18,142 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,168 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,217 INFO  L138                Inliner]: procedures = 27, calls = 65, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 362
[2024-11-03 01:19:18,218 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:19:18,219 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:19:18,219 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:19:18,219 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:19:18,234 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,234 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,249 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,286 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 01:19:18,287 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,287 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,316 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,323 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,331 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,334 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,340 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:19:18,341 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:19:18,341 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:19:18,342 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:19:18,342 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (1/1) ...
[2024-11-03 01:19:18,347 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:19:18,361 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:19:18,378 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 01:19:18,381 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 01:19:18,428 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:19:18,429 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:19:18,429 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:19:18,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:19:18,429 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:19:18,429 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:19:18,564 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:19:18,566 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:19:45,179 INFO  L?                        ?]: Removed 40 outVars from TransFormulas that were not future-live.
[2024-11-03 01:19:45,180 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:19:45,200 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:19:45,200 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:19:45,200 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:19:45 BoogieIcfgContainer
[2024-11-03 01:19:45,200 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:19:45,205 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:19:45,205 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:19:45,208 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:19:45,209 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:19:17" (1/3) ...
[2024-11-03 01:19:45,210 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e226210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:19:45, skipping insertion in model container
[2024-11-03 01:19:45,210 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:19:18" (2/3) ...
[2024-11-03 01:19:45,211 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e226210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:19:45, skipping insertion in model container
[2024-11-03 01:19:45,211 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:19:45" (3/3) ...
[2024-11-03 01:19:45,213 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-67.i
[2024-11-03 01:19:45,230 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:19:45,231 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:19:45,317 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:19:45,324 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;@1773ecd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:19:45,326 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:19:45,333 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 154 states, 99 states have (on average 1.4747474747474747) internal successors, (146), 100 states have internal predecessors, (146), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2024-11-03 01:19:45,357 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 334
[2024-11-03 01:19:45,358 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:19:45,360 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:45,360 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:19:45,366 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:19:45,367 INFO  L85        PathProgramCache]: Analyzing trace with hash -2095158896, now seen corresponding path program 1 times
[2024-11-03 01:19:45,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:19:45,375 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701901656]
[2024-11-03 01:19:45,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:19:45,378 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:45,379 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:19:45,382 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:19:45,383 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 01:19:46,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:19:47,006 INFO  L255         TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:19:47,023 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:19:47,118 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-03 01:19:47,119 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:19:51,373 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-03 01:19:51,374 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:19:51,374 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701901656]
[2024-11-03 01:19:51,375 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1701901656] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:19:51,375 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:19:51,375 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:19:51,377 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594559087]
[2024-11-03 01:19:51,378 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:19:51,384 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:19:51,385 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:19:51,414 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:19:51,415 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:19:51,418 INFO  L87              Difference]: Start difference. First operand  has 154 states, 99 states have (on average 1.4747474747474747) internal successors, (146), 100 states have internal predecessors, (146), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand  has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-03 01:19:51,478 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:19:51,478 INFO  L93              Difference]: Finished difference Result 301 states and 546 transitions.
[2024-11-03 01:19:51,479 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:19:51,481 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 333
[2024-11-03 01:19:51,482 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:19:51,493 INFO  L225             Difference]: With dead ends: 301
[2024-11-03 01:19:51,493 INFO  L226             Difference]: Without dead ends: 150
[2024-11-03 01:19:51,499 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 664 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 01:19:51,503 INFO  L432           NwaCegarLoop]: 242 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, 242 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 01:19:51,504 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:19:51,519 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 150 states.
[2024-11-03 01:19:51,560 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150.
[2024-11-03 01:19:51,561 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 150 states, 96 states have (on average 1.4375) internal successors, (138), 96 states have internal predecessors, (138), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2024-11-03 01:19:51,563 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 242 transitions.
[2024-11-03 01:19:51,566 INFO  L78                 Accepts]: Start accepts. Automaton has 150 states and 242 transitions. Word has length 333
[2024-11-03 01:19:51,567 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:19:51,567 INFO  L471      AbstractCegarLoop]: Abstraction has 150 states and 242 transitions.
[2024-11-03 01:19:51,567 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-03 01:19:51,568 INFO  L276                IsEmpty]: Start isEmpty. Operand 150 states and 242 transitions.
[2024-11-03 01:19:51,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 334
[2024-11-03 01:19:51,575 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:19:51,575 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:51,592 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 01:19:51,776 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:51,777 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:19:51,778 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:19:51,778 INFO  L85        PathProgramCache]: Analyzing trace with hash 1777805994, now seen corresponding path program 1 times
[2024-11-03 01:19:51,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:19:51,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498012015]
[2024-11-03 01:19:51,779 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:19:51,779 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:19:51,779 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:19:51,782 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:19:51,785 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 01:19:53,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:19:53,292 INFO  L255         TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:19:53,303 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:19:53,645 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-03 01:19:53,646 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:19:58,219 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-03 01:19:58,220 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:19:58,220 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498012015]
[2024-11-03 01:19:58,220 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1498012015] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:19:58,220 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:19:58,220 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:19:58,221 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956090040]
[2024-11-03 01:19:58,221 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:19:58,223 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:19:58,223 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:19:58,224 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:19:58,224 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:19:58,225 INFO  L87              Difference]: Start difference. First operand 150 states and 242 transitions. Second operand  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-03 01:20:02,942 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:20:06,951 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 01:20:06,957 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:20:06,957 INFO  L93              Difference]: Finished difference Result 350 states and 569 transitions.
[2024-11-03 01:20:07,184 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:20:07,185 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 333
[2024-11-03 01:20:07,186 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:20:07,190 INFO  L225             Difference]: With dead ends: 350
[2024-11-03 01:20:07,190 INFO  L226             Difference]: Without dead ends: 203
[2024-11-03 01:20:07,191 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 663 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 01:20:07,192 INFO  L432           NwaCegarLoop]: 241 mSDtfsCounter, 85 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time
[2024-11-03 01:20:07,193 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 474 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time]
[2024-11-03 01:20:07,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 203 states.
[2024-11-03 01:20:07,212 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 156.
[2024-11-03 01:20:07,212 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 156 states, 102 states have (on average 1.4509803921568627) internal successors, (148), 102 states have internal predecessors, (148), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52)
[2024-11-03 01:20:07,214 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 252 transitions.
[2024-11-03 01:20:07,215 INFO  L78                 Accepts]: Start accepts. Automaton has 156 states and 252 transitions. Word has length 333
[2024-11-03 01:20:07,217 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:20:07,217 INFO  L471      AbstractCegarLoop]: Abstraction has 156 states and 252 transitions.
[2024-11-03 01:20:07,217 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-03 01:20:07,218 INFO  L276                IsEmpty]: Start isEmpty. Operand 156 states and 252 transitions.
[2024-11-03 01:20:07,222 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 334
[2024-11-03 01:20:07,223 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:20:07,223 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:07,239 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0
[2024-11-03 01:20:07,424 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:20:07,424 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:20:07,425 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:20:07,425 INFO  L85        PathProgramCache]: Analyzing trace with hash 2052565608, now seen corresponding path program 1 times
[2024-11-03 01:20:07,426 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:20:07,426 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161134990]
[2024-11-03 01:20:07,426 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:20:07,426 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:20:07,426 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:20:07,428 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:20:07,429 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 01:20:08,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:20:08,949 INFO  L255         TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:20:08,956 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:20:09,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-03 01:20:09,127 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:20:14,349 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-03 01:20:14,350 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:20:14,350 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161134990]
[2024-11-03 01:20:14,350 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [161134990] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:20:14,350 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:20:14,351 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:20:14,351 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604289906]
[2024-11-03 01:20:14,351 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:20:14,352 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:20:14,352 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:20:14,353 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:20:14,353 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:20:14,354 INFO  L87              Difference]: Start difference. First operand 156 states and 252 transitions. Second operand  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-03 01:20:19,163 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:20:23,171 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 01:20:23,561 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:20:23,561 INFO  L93              Difference]: Finished difference Result 460 states and 746 transitions.
[2024-11-03 01:20:23,561 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:20:23,562 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 333
[2024-11-03 01:20:23,564 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:20:23,567 INFO  L225             Difference]: With dead ends: 460
[2024-11-03 01:20:23,568 INFO  L226             Difference]: Without dead ends: 307
[2024-11-03 01:20:23,569 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 663 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 01:20:23,570 INFO  L432           NwaCegarLoop]: 431 mSDtfsCounter, 235 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time
[2024-11-03 01:20:23,570 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 659 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time]
[2024-11-03 01:20:23,575 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 307 states.
[2024-11-03 01:20:23,636 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 305.
[2024-11-03 01:20:23,637 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 305 states, 198 states have (on average 1.4444444444444444) internal successors, (286), 198 states have internal predecessors, (286), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104)
[2024-11-03 01:20:23,640 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 494 transitions.
[2024-11-03 01:20:23,641 INFO  L78                 Accepts]: Start accepts. Automaton has 305 states and 494 transitions. Word has length 333
[2024-11-03 01:20:23,642 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:20:23,642 INFO  L471      AbstractCegarLoop]: Abstraction has 305 states and 494 transitions.
[2024-11-03 01:20:23,642 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52)
[2024-11-03 01:20:23,643 INFO  L276                IsEmpty]: Start isEmpty. Operand 305 states and 494 transitions.
[2024-11-03 01:20:23,645 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 335
[2024-11-03 01:20:23,645 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:20:23,645 INFO  L215           NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:23,661 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 01:20:23,846 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:20:23,847 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:20:23,847 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:20:23,847 INFO  L85        PathProgramCache]: Analyzing trace with hash -507952217, now seen corresponding path program 1 times
[2024-11-03 01:20:23,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:20:23,848 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867363929]
[2024-11-03 01:20:23,848 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:20:23,848 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:20:23,848 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:20:23,849 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:20:23,850 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:20:25,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:20:25,272 INFO  L255         TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 01:20:25,278 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:20:41,678 INFO  L134       CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked.
[2024-11-03 01:20:41,679 INFO  L311         TraceCheckSpWp]: Computing backward predicates...