/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_amount100_file-30.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 00:56:07,343 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 00:56:07,408 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 00:56:07,412 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 00:56:07,414 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 00:56:07,433 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 00:56:07,434 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 00:56:07,436 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 00:56:07,437 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 00:56:07,438 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 00:56:07,438 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 00:56:07,438 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 00:56:07,438 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 00:56:07,439 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 00:56:07,439 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 00:56:07,439 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 00:56:07,439 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 00:56:07,439 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 00:56:07,440 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 00:56:07,440 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 00:56:07,443 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 00:56:07,443 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 00:56:07,444 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 00:56:07,444 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 00:56:07,444 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 00:56:07,444 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 00:56:07,444 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 00:56:07,444 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 00:56:07,444 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 00:56:07,445 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 00:56:07,446 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 00:56:07,446 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 00:56:07,446 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 00:56:07,446 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 00:56:07,446 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:56:07,447 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 00:56:07,447 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 00:56:07,447 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 00:56:07,447 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 00:56:07,447 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:07,447 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 00:56:07,447 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 00:56:07,447 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 00:56:07,448 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 00:56:07,448 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:07,656 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 00:56:07,677 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 00:56:07,679 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 00:56:07,680 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 00:56:07,680 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 00:56:07,681 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-30.i
[2024-11-03 00:56:09,089 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 00:56:09,269 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 00:56:09,269 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-30.i
[2024-11-03 00:56:09,278 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/016f7e5f3/19f94952ff40494594db96d8119b33d1/FLAG6cfaf4914
[2024-11-03 00:56:09,652 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/016f7e5f3/19f94952ff40494594db96d8119b33d1
[2024-11-03 00:56:09,658 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 00:56:09,659 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 00:56:09,660 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 00:56:09,660 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 00:56:09,668 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 00:56:09,669 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:56:09" (1/1) ...
[2024-11-03 00:56:09,671 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537c199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:09, skipping insertion in model container
[2024-11-03 00:56:09,671 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:56:09" (1/1) ...
[2024-11-03 00:56:09,705 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 00:56:09,882 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-30.i[916,929]
[2024-11-03 00:56:09,962 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:56:09,980 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 00:56:09,989 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-30.i[916,929]
[2024-11-03 00:56:10,019 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:56:10,034 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 00:56:10,034 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10 WrapperNode
[2024-11-03 00:56:10,034 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 00:56:10,035 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 00:56:10,035 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 00:56:10,035 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 00:56:10,040 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,050 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,072 INFO  L138                Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188
[2024-11-03 00:56:10,072 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 00:56:10,073 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 00:56:10,073 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 00:56:10,073 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 00:56:10,082 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,082 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,087 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,116 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 00:56:10,116 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,116 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,150 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,158 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,175 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,181 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,189 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 00:56:10,190 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 00:56:10,190 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 00:56:10,190 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 00:56:10,191 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (1/1) ...
[2024-11-03 00:56:10,206 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:56:10,215 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 00:56:10,228 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 00:56:10,230 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 00:56:10,248 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 00:56:10,248 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 00:56:10,248 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 00:56:10,248 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 00:56:10,249 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 00:56:10,249 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 00:56:10,327 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 00:56:10,329 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 00:56:16,432 INFO  L?                        ?]: Removed 18 outVars from TransFormulas that were not future-live.
[2024-11-03 00:56:16,432 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 00:56:16,442 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 00:56:16,443 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 00:56:16,443 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:56:16 BoogieIcfgContainer
[2024-11-03 00:56:16,443 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 00:56:16,448 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 00:56:16,448 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 00:56:16,451 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 00:56:16,452 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:56:09" (1/3) ...
[2024-11-03 00:56:16,452 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496c495f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:56:16, skipping insertion in model container
[2024-11-03 00:56:16,453 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:10" (2/3) ...
[2024-11-03 00:56:16,453 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496c495f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:56:16, skipping insertion in model container
[2024-11-03 00:56:16,453 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:56:16" (3/3) ...
[2024-11-03 00:56:16,456 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-30.i
[2024-11-03 00:56:16,470 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 00:56:16,470 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 00:56:16,582 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 00:56:16,595 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;@5f9fa2cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 00:56:16,600 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 00:56:16,611 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 79 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 00:56:16,634 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2024-11-03 00:56:16,635 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:56:16,635 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:16,636 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:56:16,640 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:56:16,640 INFO  L85        PathProgramCache]: Analyzing trace with hash 1847948568, now seen corresponding path program 1 times
[2024-11-03 00:56:16,646 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:56:16,646 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483309711]
[2024-11-03 00:56:16,646 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:56:16,648 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:16,648 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:56:16,650 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 00:56:16,651 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 00:56:17,005 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:56:17,028 INFO  L255         TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 00:56:17,040 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:56:17,081 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked.
[2024-11-03 00:56:17,081 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:56:17,255 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked.
[2024-11-03 00:56:17,256 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:56:17,256 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483309711]
[2024-11-03 00:56:17,256 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1483309711] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:56:17,257 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:56:17,257 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 00:56:17,258 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117722377]
[2024-11-03 00:56:17,258 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:56:17,262 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 00:56:17,262 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:56:17,276 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 00:56:17,276 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 00:56:17,278 INFO  L87              Difference]: Start difference. First operand  has 79 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 53 states have internal predecessors, (75), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24)
[2024-11-03 00:56:17,296 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:56:17,297 INFO  L93              Difference]: Finished difference Result 150 states and 262 transitions.
[2024-11-03 00:56:17,299 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 00:56:17,300 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 158
[2024-11-03 00:56:17,300 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:56:17,305 INFO  L225             Difference]: With dead ends: 150
[2024-11-03 00:56:17,305 INFO  L226             Difference]: Without dead ends: 74
[2024-11-03 00:56:17,309 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 00:56:17,312 INFO  L432           NwaCegarLoop]: 112 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, 112 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 00:56:17,312 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 00:56:17,327 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2024-11-03 00:56:17,343 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74.
[2024-11-03 00:56:17,344 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 74 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 48 states have internal predecessors, (64), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2024-11-03 00:56:17,345 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 112 transitions.
[2024-11-03 00:56:17,346 INFO  L78                 Accepts]: Start accepts. Automaton has 74 states and 112 transitions. Word has length 158
[2024-11-03 00:56:17,347 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:56:17,347 INFO  L471      AbstractCegarLoop]: Abstraction has 74 states and 112 transitions.
[2024-11-03 00:56:17,347 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24)
[2024-11-03 00:56:17,347 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 112 transitions.
[2024-11-03 00:56:17,349 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2024-11-03 00:56:17,349 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:56:17,350 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:17,358 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 00:56:17,553 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 00:56:17,554 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:56:17,555 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:56:17,555 INFO  L85        PathProgramCache]: Analyzing trace with hash -1486965292, now seen corresponding path program 1 times
[2024-11-03 00:56:17,555 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:56:17,555 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733714247]
[2024-11-03 00:56:17,555 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:56:17,555 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:17,556 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:56:17,558 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 00:56:17,563 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 00:56:18,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:56:18,112 INFO  L255         TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 00:56:18,121 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:56:18,909 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:56:18,910 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:56:19,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2024-11-03 00:56:19,464 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:56:19,464 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733714247]
[2024-11-03 00:56:19,464 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [733714247] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:56:19,464 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:56:19,464 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4
[2024-11-03 00:56:19,464 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294875170]
[2024-11-03 00:56:19,465 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:56:19,466 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 00:56:19,466 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:56:19,467 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 00:56:19,467 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-03 00:56:19,467 INFO  L87              Difference]: Start difference. First operand 74 states and 112 transitions. Second operand  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48)
[2024-11-03 00:56:23,722 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:26,263 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:28,960 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:29,005 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:56:29,005 INFO  L93              Difference]: Finished difference Result 256 states and 387 transitions.
[2024-11-03 00:56:29,034 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 00:56:29,034 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 158
[2024-11-03 00:56:29,035 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:56:29,037 INFO  L225             Difference]: With dead ends: 256
[2024-11-03 00:56:29,037 INFO  L226             Difference]: Without dead ends: 185
[2024-11-03 00:56:29,038 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 00:56:29,039 INFO  L432           NwaCegarLoop]: 122 mSDtfsCounter, 134 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time
[2024-11-03 00:56:29,039 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 357 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time]
[2024-11-03 00:56:29,040 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 185 states.
[2024-11-03 00:56:29,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 134.
[2024-11-03 00:56:29,061 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 134 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 83 states have internal predecessors, (105), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2024-11-03 00:56:29,062 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 201 transitions.
[2024-11-03 00:56:29,062 INFO  L78                 Accepts]: Start accepts. Automaton has 134 states and 201 transitions. Word has length 158
[2024-11-03 00:56:29,063 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:56:29,063 INFO  L471      AbstractCegarLoop]: Abstraction has 134 states and 201 transitions.
[2024-11-03 00:56:29,063 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48)
[2024-11-03 00:56:29,063 INFO  L276                IsEmpty]: Start isEmpty. Operand 134 states and 201 transitions.
[2024-11-03 00:56:29,065 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2024-11-03 00:56:29,065 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:56:29,065 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:29,070 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 00:56:29,269 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 00:56:29,270 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:56:29,271 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:56:29,272 INFO  L85        PathProgramCache]: Analyzing trace with hash -1348169896, now seen corresponding path program 1 times
[2024-11-03 00:56:29,272 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:56:29,272 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259626359]
[2024-11-03 00:56:29,272 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:56:29,272 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:29,272 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:56:29,275 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 00:56:29,276 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 00:56:30,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:56:30,351 INFO  L255         TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-03 00:56:30,365 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:56:31,647 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 503 proven. 21 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked.
[2024-11-03 00:56:31,647 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:56:33,664 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 48 proven. 21 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked.
[2024-11-03 00:56:33,664 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:56:33,665 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259626359]
[2024-11-03 00:56:33,665 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [259626359] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 00:56:33,665 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 00:56:33,665 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16
[2024-11-03 00:56:33,665 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618222263]
[2024-11-03 00:56:33,665 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 00:56:33,666 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-03 00:56:33,666 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:56:33,667 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-03 00:56:33,667 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240
[2024-11-03 00:56:33,667 INFO  L87              Difference]: Start difference. First operand 134 states and 201 transitions. Second operand  has 16 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48)
[2024-11-03 00:56:39,534 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:44,405 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 00:56:45,783 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 00:56:53,845 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 00:56:56,487 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 00:57:03,777 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-03 00:57:04,688 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:57:04,689 INFO  L93              Difference]: Finished difference Result 432 states and 624 transitions.
[2024-11-03 00:57:04,690 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. 
[2024-11-03 00:57:04,691 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 159
[2024-11-03 00:57:04,695 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:57:04,703 INFO  L225             Difference]: With dead ends: 432
[2024-11-03 00:57:04,703 INFO  L226             Difference]: Without dead ends: 301
[2024-11-03 00:57:04,705 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=392, Invalid=868, Unknown=0, NotChecked=0, Total=1260
[2024-11-03 00:57:04,705 INFO  L432           NwaCegarLoop]: 73 mSDtfsCounter, 749 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 522 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time
[2024-11-03 00:57:04,706 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 475 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 595 Invalid, 3 Unknown, 0 Unchecked, 29.3s Time]
[2024-11-03 00:57:04,709 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 301 states.
[2024-11-03 00:57:04,784 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 272.
[2024-11-03 00:57:04,790 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 272 states, 176 states have (on average 1.2556818181818181) internal successors, (221), 177 states have internal predecessors, (221), 87 states have call successors, (87), 8 states have call predecessors, (87), 8 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87)
[2024-11-03 00:57:04,792 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 395 transitions.
[2024-11-03 00:57:04,797 INFO  L78                 Accepts]: Start accepts. Automaton has 272 states and 395 transitions. Word has length 159
[2024-11-03 00:57:04,797 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:57:04,797 INFO  L471      AbstractCegarLoop]: Abstraction has 272 states and 395 transitions.
[2024-11-03 00:57:04,798 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 5.5625) internal successors, (89), 16 states have internal predecessors, (89), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48)
[2024-11-03 00:57:04,798 INFO  L276                IsEmpty]: Start isEmpty. Operand 272 states and 395 transitions.
[2024-11-03 00:57:04,799 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2024-11-03 00:57:04,799 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:57:04,799 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:04,818 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 00:57:05,002 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 00:57:05,003 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:57:05,006 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:57:05,006 INFO  L85        PathProgramCache]: Analyzing trace with hash 1258003313, now seen corresponding path program 1 times
[2024-11-03 00:57:05,006 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:57:05,010 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920653476]
[2024-11-03 00:57:05,010 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:57:05,010 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:57:05,010 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:57:05,015 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 00:57:05,016 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 00:57:05,757 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:57:05,771 INFO  L255         TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-03 00:57:05,775 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:57:06,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 23 proven. 69 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked.
[2024-11-03 00:57:06,473 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:57:09,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked.
[2024-11-03 00:57:09,246 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:57:09,246 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920653476]
[2024-11-03 00:57:09,246 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1920653476] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 00:57:09,247 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 00:57:09,247 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2024-11-03 00:57:09,247 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713675787]
[2024-11-03 00:57:09,247 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 00:57:09,247 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-03 00:57:09,247 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:57:09,249 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-03 00:57:09,249 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132
[2024-11-03 00:57:09,250 INFO  L87              Difference]: Start difference. First operand 272 states and 395 transitions. Second operand  has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 3 states have call successors, (48)
[2024-11-03 00:57:16,943 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 00:57:19,157 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 00:57:23,166 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 [0]
[2024-11-03 00:57:26,096 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:57:26,097 INFO  L93              Difference]: Finished difference Result 940 states and 1325 transitions.
[2024-11-03 00:57:26,097 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2024-11-03 00:57:26,097 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 3 states have call successors, (48) Word has length 160
[2024-11-03 00:57:26,098 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:57:26,105 INFO  L225             Difference]: With dead ends: 940
[2024-11-03 00:57:26,106 INFO  L226             Difference]: Without dead ends: 671
[2024-11-03 00:57:26,108 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756
[2024-11-03 00:57:26,110 INFO  L432           NwaCegarLoop]: 144 mSDtfsCounter, 197 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 103 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time
[2024-11-03 00:57:26,110 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 544 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 523 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time]
[2024-11-03 00:57:26,111 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 671 states.
[2024-11-03 00:57:26,182 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 296.
[2024-11-03 00:57:26,183 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 296 states, 196 states have (on average 1.2295918367346939) internal successors, (241), 197 states have internal predecessors, (241), 87 states have call successors, (87), 12 states have call predecessors, (87), 12 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87)
[2024-11-03 00:57:26,185 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 415 transitions.
[2024-11-03 00:57:26,185 INFO  L78                 Accepts]: Start accepts. Automaton has 296 states and 415 transitions. Word has length 160
[2024-11-03 00:57:26,186 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:57:26,186 INFO  L471      AbstractCegarLoop]: Abstraction has 296 states and 415 transitions.
[2024-11-03 00:57:26,186 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 3 states have call successors, (48)
[2024-11-03 00:57:26,186 INFO  L276                IsEmpty]: Start isEmpty. Operand 296 states and 415 transitions.
[2024-11-03 00:57:26,190 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2024-11-03 00:57:26,190 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:57:26,190 INFO  L215           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:26,204 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2024-11-03 00:57:26,391 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 00:57:26,391 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:57:26,392 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:57:26,392 INFO  L85        PathProgramCache]: Analyzing trace with hash -1261956621, now seen corresponding path program 1 times
[2024-11-03 00:57:26,392 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:57:26,392 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351940774]
[2024-11-03 00:57:26,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:57:26,392 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:57:26,393 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:57:26,396 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:57:26,397 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-03 00:57:27,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:57:27,472 INFO  L255         TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 43 conjuncts are in the unsatisfiable core
[2024-11-03 00:57:27,478 INFO  L278         TraceCheckSpWp]: Computing forward predicates...