/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_amount25_file-93.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:35:13,967 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:35:14,041 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 01:35:14,047 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:35:14,047 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:35:14,080 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:35:14,081 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:35:14,081 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:35:14,082 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:35:14,082 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:35:14,082 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:35:14,083 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:35:14,084 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:35:14,088 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:35:14,088 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:35:14,088 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:35:14,089 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:35:14,089 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:35:14,089 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:35:14,089 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:35:14,089 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:35:14,090 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:35:14,091 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:35:14,091 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:35:14,091 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:35:14,091 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:35:14,091 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:35:14,092 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:35:14,092 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:35:14,092 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:35:14,092 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:35:14,093 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:35:14,093 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:35:14,093 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:35:14,093 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:35:14,093 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:35:14,093 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:35:14,094 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:35:14,094 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:35:14,094 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:35:14,095 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:35:14,095 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:35:14,095 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:35:14,095 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:35:14,096 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:35:14,335 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:35:14,362 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:35:14,365 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:35:14,366 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:35:14,367 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:35:14,368 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-93.i
[2024-11-03 01:35:15,963 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:35:16,165 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:35:16,166 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-93.i
[2024-11-03 01:35:16,175 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65578c3cd/441a4cffd49d49c8abb5d6bed7bcb801/FLAG133b47f90
[2024-11-03 01:35:16,188 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65578c3cd/441a4cffd49d49c8abb5d6bed7bcb801
[2024-11-03 01:35:16,191 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:35:16,192 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:35:16,193 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:35:16,193 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:35:16,200 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:35:16,201 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,202 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35422206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16, skipping insertion in model container
[2024-11-03 01:35:16,202 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,232 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:35:16,410 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-93.i[915,928]
[2024-11-03 01:35:16,457 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:35:16,474 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:35:16,488 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-93.i[915,928]
[2024-11-03 01:35:16,506 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:35:16,528 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:35:16,528 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16 WrapperNode
[2024-11-03 01:35:16,528 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:35:16,532 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:35:16,532 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:35:16,532 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:35:16,540 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,550 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,574 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114
[2024-11-03 01:35:16,575 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:35:16,575 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:35:16,576 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:35:16,576 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:35:16,591 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,592 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,597 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,610 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 01:35:16,611 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,611 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,619 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,622 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,628 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,630 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,637 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:35:16,638 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:35:16,638 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:35:16,638 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:35:16,641 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (1/1) ...
[2024-11-03 01:35:16,647 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:35:16,658 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:35:16,676 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 01:35:16,683 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 01:35:16,711 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:35:16,712 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:35:16,712 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:35:16,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:35:16,713 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:35:16,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:35:16,811 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:35:16,814 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:35:27,702 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-03 01:35:27,703 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:35:27,714 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:35:27,714 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:35:27,714 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:35:27 BoogieIcfgContainer
[2024-11-03 01:35:27,715 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:35:27,717 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:35:27,717 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:35:27,721 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:35:27,721 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:35:16" (1/3) ...
[2024-11-03 01:35:27,721 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e53b62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:35:27, skipping insertion in model container
[2024-11-03 01:35:27,722 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:35:16" (2/3) ...
[2024-11-03 01:35:27,722 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e53b62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:35:27, skipping insertion in model container
[2024-11-03 01:35:27,722 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:35:27" (3/3) ...
[2024-11-03 01:35:27,723 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-93.i
[2024-11-03 01:35:27,735 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:35:27,735 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:35:27,788 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:35:27,795 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;@2efa33aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:35:27,796 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:35:27,801 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 54 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 01:35:27,812 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-03 01:35:27,813 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:35:27,814 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:35:27,828 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:35:27,837 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:35:27,837 INFO  L85        PathProgramCache]: Analyzing trace with hash 1212608925, now seen corresponding path program 1 times
[2024-11-03 01:35:27,846 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:35:27,846 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545814071]
[2024-11-03 01:35:27,847 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:35:27,850 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:35:27,850 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:35:27,853 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 01:35:27,861 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 01:35:28,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:35:28,232 INFO  L255         TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:35:28,240 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:35:28,293 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-03 01:35:28,293 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:35:30,162 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-03 01:35:30,163 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:35:30,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545814071]
[2024-11-03 01:35:30,164 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [545814071] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:35:30,164 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:35:30,164 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:35:30,166 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179987437]
[2024-11-03 01:35:30,166 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:35:30,170 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:35:30,170 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:35:30,188 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:35:30,188 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:35:30,190 INFO  L87              Difference]: Start difference. First operand  has 54 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 01:35:30,210 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:35:30,210 INFO  L93              Difference]: Finished difference Result 100 states and 170 transitions.
[2024-11-03 01:35:30,211 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:35:30,212 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113
[2024-11-03 01:35:30,213 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:35:30,220 INFO  L225             Difference]: With dead ends: 100
[2024-11-03 01:35:30,221 INFO  L226             Difference]: Without dead ends: 49
[2024-11-03 01:35:30,224 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 224 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 01:35:30,227 INFO  L432           NwaCegarLoop]: 70 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, 70 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 01:35:30,227 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:35:30,239 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2024-11-03 01:35:30,264 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49.
[2024-11-03 01:35:30,266 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 01:35:30,270 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions.
[2024-11-03 01:35:30,273 INFO  L78                 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 113
[2024-11-03 01:35:30,274 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:35:30,274 INFO  L471      AbstractCegarLoop]: Abstraction has 49 states and 70 transitions.
[2024-11-03 01:35:30,274 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 01:35:30,275 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions.
[2024-11-03 01:35:30,280 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-03 01:35:30,280 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:35:30,280 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:35:30,289 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0
[2024-11-03 01:35:30,481 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 01:35:30,482 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:35:30,482 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:35:30,483 INFO  L85        PathProgramCache]: Analyzing trace with hash 953632093, now seen corresponding path program 1 times
[2024-11-03 01:35:30,483 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:35:30,483 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236181192]
[2024-11-03 01:35:30,483 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:35:30,484 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:35:30,484 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:35:30,486 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 01:35:30,488 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 01:35:33,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:35:33,350 INFO  L255         TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-03 01:35:33,357 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:36:06,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 01:36:06,266 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:36:14,877 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 01:36:14,877 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:36:14,877 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236181192]
[2024-11-03 01:36:14,877 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [236181192] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:36:14,878 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:36:14,878 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14
[2024-11-03 01:36:14,878 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119508117]
[2024-11-03 01:36:14,878 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:36:14,879 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-03 01:36:14,880 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:36:14,881 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-03 01:36:14,881 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182
[2024-11-03 01:36:14,881 INFO  L87              Difference]: Start difference. First operand 49 states and 70 transitions. Second operand  has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 01:36:19,895 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:36:23,907 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:36:27,915 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:36:31,923 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:36:35,926 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:36:39,941 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:36:47,798 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:36:47,799 INFO  L93              Difference]: Finished difference Result 85 states and 114 transitions.
[2024-11-03 01:36:47,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 01:36:47,800 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113
[2024-11-03 01:36:47,800 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:36:47,802 INFO  L225             Difference]: With dead ends: 85
[2024-11-03 01:36:47,802 INFO  L226             Difference]: Without dead ends: 83
[2024-11-03 01:36:47,802 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240
[2024-11-03 01:36:47,803 INFO  L432           NwaCegarLoop]: 79 mSDtfsCounter, 89 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 34 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time
[2024-11-03 01:36:47,804 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 406 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 89 Invalid, 6 Unknown, 0 Unchecked, 31.8s Time]
[2024-11-03 01:36:47,805 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2024-11-03 01:36:47,817 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 67.
[2024-11-03 01:36:47,817 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 42 states have internal predecessors, (46), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23)
[2024-11-03 01:36:47,819 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions.
[2024-11-03 01:36:47,819 INFO  L78                 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 113
[2024-11-03 01:36:47,820 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:36:47,820 INFO  L471      AbstractCegarLoop]: Abstraction has 67 states and 92 transitions.
[2024-11-03 01:36:47,820 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 01:36:47,820 INFO  L276                IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions.
[2024-11-03 01:36:47,822 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-03 01:36:47,822 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:36:47,822 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:36:47,851 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 01:36:48,023 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 01:36:48,023 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:36:48,024 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:36:48,024 INFO  L85        PathProgramCache]: Analyzing trace with hash -2046578089, now seen corresponding path program 1 times
[2024-11-03 01:36:48,024 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:36:48,024 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86006626]
[2024-11-03 01:36:48,025 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:36:48,025 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:36:48,025 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:36:48,026 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 01:36:48,027 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 01:36:50,587 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:36:50,598 INFO  L255         TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 01:36:50,601 INFO  L278         TraceCheckSpWp]: Computing forward predicates...