/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_amount500_file-4.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:40:31,393 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:40:31,487 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 01:40:31,493 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:40:31,494 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:40:31,525 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:40:31,527 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:40:31,527 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:40:31,528 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:40:31,529 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:40:31,529 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:40:31,530 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:40:31,530 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:40:31,531 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:40:31,531 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:40:31,533 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:40:31,533 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:40:31,536 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:40:31,536 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:40:31,536 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:40:31,536 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:40:31,537 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:40:31,538 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:40:31,538 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:40:31,538 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:40:31,538 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:40:31,538 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:40:31,539 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:40:31,539 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:40:31,539 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:40:31,539 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:40:31,539 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:40:31,540 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:40:31,540 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:40:31,540 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:40:31,540 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:40:31,541 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:40:31,541 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:40:31,541 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:40:31,541 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:40:31,541 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:40:31,542 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:40:31,543 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:40:31,543 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:40:31,543 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:40:31,794 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:40:31,825 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:40:31,829 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:40:31,830 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:40:31,830 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:40:31,832 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-4.i
[2024-11-03 01:40:33,349 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:40:33,613 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:40:33,614 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-4.i
[2024-11-03 01:40:33,635 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c23257ab/e7bae9f0623d4886b0c01e2ac76d3492/FLAG71164d2b0
[2024-11-03 01:40:33,919 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c23257ab/e7bae9f0623d4886b0c01e2ac76d3492
[2024-11-03 01:40:33,921 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:40:33,922 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:40:33,925 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:40:33,925 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:40:33,930 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:40:33,931 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:40:33" (1/1) ...
[2024-11-03 01:40:33,933 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128152fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:33, skipping insertion in model container
[2024-11-03 01:40:33,933 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:40:33" (1/1) ...
[2024-11-03 01:40:33,999 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:40:34,200 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_amount500_file-4.i[915,928]
[2024-11-03 01:40:34,430 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:40:34,464 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:40:34,486 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_amount500_file-4.i[915,928]
[2024-11-03 01:40:34,662 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:40:34,689 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:40:34,690 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34 WrapperNode
[2024-11-03 01:40:34,690 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:40:34,691 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:40:34,692 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:40:34,692 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:40:34,698 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,735 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,835 INFO  L138                Inliner]: procedures = 27, calls = 74, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 575
[2024-11-03 01:40:34,836 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:40:34,838 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:40:34,838 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:40:34,838 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:40:34,850 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,850 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,864 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,898 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 01:40:34,898 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,898 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,938 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,952 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,960 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,965 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,981 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:40:34,982 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:40:34,982 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:40:34,983 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:40:34,984 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (1/1) ...
[2024-11-03 01:40:34,989 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:40:35,001 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:40:35,017 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 01:40:35,021 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 01:40:35,045 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:40:35,045 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:40:35,045 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:40:35,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:40:35,045 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:40:35,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:40:35,178 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:40:35,180 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:41:21,425 INFO  L?                        ?]: Removed 85 outVars from TransFormulas that were not future-live.
[2024-11-03 01:41:21,425 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:41:21,452 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:41:21,452 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:41:21,452 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:41:21 BoogieIcfgContainer
[2024-11-03 01:41:21,453 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:41:21,457 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:41:21,457 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:41:21,460 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:41:21,460 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:40:33" (1/3) ...
[2024-11-03 01:41:21,461 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd48172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:41:21, skipping insertion in model container
[2024-11-03 01:41:21,461 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:34" (2/3) ...
[2024-11-03 01:41:21,462 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd48172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:41:21, skipping insertion in model container
[2024-11-03 01:41:21,462 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:41:21" (3/3) ...
[2024-11-03 01:41:21,463 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-4.i
[2024-11-03 01:41:21,479 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:41:21,479 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:41:21,559 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:41:21,564 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;@3c0e911f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:41:21,565 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:41:21,571 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 222 states, 158 states have (on average 1.5569620253164558) internal successors, (246), 159 states have internal predecessors, (246), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61)
[2024-11-03 01:41:21,592 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 421
[2024-11-03 01:41:21,592 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:41:21,593 INFO  L215           NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:21,594 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:41:21,598 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:41:21,599 INFO  L85        PathProgramCache]: Analyzing trace with hash -2081760821, now seen corresponding path program 1 times
[2024-11-03 01:41:21,607 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:41:21,608 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83164510]
[2024-11-03 01:41:21,608 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:41:21,610 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:41:21,611 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:41:21,613 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 01:41:21,615 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 01:41:23,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:41:23,589 INFO  L255         TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:41:23,614 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:41:23,708 INFO  L134       CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked.
[2024-11-03 01:41:23,709 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:41:31,948 INFO  L134       CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked.
[2024-11-03 01:41:31,949 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:41:31,949 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83164510]
[2024-11-03 01:41:31,950 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [83164510] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:41:31,950 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:41:31,950 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:41:31,953 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423911099]
[2024-11-03 01:41:31,954 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:41:31,959 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:41:31,959 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:41:31,982 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:41:31,983 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:41:31,987 INFO  L87              Difference]: Start difference. First operand  has 222 states, 158 states have (on average 1.5569620253164558) internal successors, (246), 159 states have internal predecessors, (246), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand  has 2 states, 2 states have (on average 59.0) internal successors, (118), 2 states have internal predecessors, (118), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61)
[2024-11-03 01:41:32,039 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:41:32,039 INFO  L93              Difference]: Finished difference Result 435 states and 787 transitions.
[2024-11-03 01:41:32,041 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:41:32,042 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 59.0) internal successors, (118), 2 states have internal predecessors, (118), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 420
[2024-11-03 01:41:32,044 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:41:32,053 INFO  L225             Difference]: With dead ends: 435
[2024-11-03 01:41:32,054 INFO  L226             Difference]: Without dead ends: 216
[2024-11-03 01:41:32,059 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 838 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 01:41:32,062 INFO  L432           NwaCegarLoop]: 356 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, 356 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 01:41:32,063 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:41:32,080 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 216 states.
[2024-11-03 01:41:32,125 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216.
[2024-11-03 01:41:32,126 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 216 states, 153 states have (on average 1.5294117647058822) internal successors, (234), 153 states have internal predecessors, (234), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61)
[2024-11-03 01:41:32,129 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 356 transitions.
[2024-11-03 01:41:32,132 INFO  L78                 Accepts]: Start accepts. Automaton has 216 states and 356 transitions. Word has length 420
[2024-11-03 01:41:32,134 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:41:32,135 INFO  L471      AbstractCegarLoop]: Abstraction has 216 states and 356 transitions.
[2024-11-03 01:41:32,135 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 59.0) internal successors, (118), 2 states have internal predecessors, (118), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61)
[2024-11-03 01:41:32,135 INFO  L276                IsEmpty]: Start isEmpty. Operand 216 states and 356 transitions.
[2024-11-03 01:41:32,147 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 421
[2024-11-03 01:41:32,147 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:41:32,148 INFO  L215           NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:32,170 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 01:41:32,348 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 01:41:32,349 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:41:32,350 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:41:32,350 INFO  L85        PathProgramCache]: Analyzing trace with hash 1215279811, now seen corresponding path program 1 times
[2024-11-03 01:41:32,350 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:41:32,351 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758457767]
[2024-11-03 01:41:32,351 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:41:32,351 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:41:32,351 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:41:32,354 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 01:41:32,356 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 01:41:34,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:41:34,267 INFO  L255         TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:41:34,277 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:41:35,182 INFO  L134       CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked.
[2024-11-03 01:41:35,182 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:41:43,907 INFO  L134       CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked.
[2024-11-03 01:41:43,907 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:41:43,908 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758457767]
[2024-11-03 01:41:43,908 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1758457767] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:41:43,908 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:41:43,909 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:41:43,909 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495526082]
[2024-11-03 01:41:43,909 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:41:43,911 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:41:43,911 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:41:43,912 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:41:43,913 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:41:43,913 INFO  L87              Difference]: Start difference. First operand 216 states and 356 transitions. Second operand  has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61)
[2024-11-03 01:41:46,061 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:41:51,594 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:41:55,608 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:41:56,099 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:41:56,099 INFO  L93              Difference]: Finished difference Result 523 states and 865 transitions.
[2024-11-03 01:41:56,100 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:41:56,100 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 420
[2024-11-03 01:41:56,103 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:41:56,107 INFO  L225             Difference]: With dead ends: 523
[2024-11-03 01:41:56,107 INFO  L226             Difference]: Without dead ends: 310
[2024-11-03 01:41:56,109 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 837 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:41:56,110 INFO  L432           NwaCegarLoop]: 357 mSDtfsCounter, 141 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time
[2024-11-03 01:41:56,110 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 682 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 34 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time]
[2024-11-03 01:41:56,112 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 310 states.
[2024-11-03 01:41:56,146 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 307.
[2024-11-03 01:41:56,147 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 307 states, 239 states have (on average 1.5606694560669456) internal successors, (373), 240 states have internal predecessors, (373), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65)
[2024-11-03 01:41:56,150 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 503 transitions.
[2024-11-03 01:41:56,152 INFO  L78                 Accepts]: Start accepts. Automaton has 307 states and 503 transitions. Word has length 420
[2024-11-03 01:41:56,153 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:41:56,153 INFO  L471      AbstractCegarLoop]: Abstraction has 307 states and 503 transitions.
[2024-11-03 01:41:56,153 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61)
[2024-11-03 01:41:56,154 INFO  L276                IsEmpty]: Start isEmpty. Operand 307 states and 503 transitions.
[2024-11-03 01:41:56,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 421
[2024-11-03 01:41:56,157 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:41:56,158 INFO  L215           NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:56,174 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 01:41:56,358 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 01:41:56,359 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:41:56,359 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:41:56,360 INFO  L85        PathProgramCache]: Analyzing trace with hash 185920513, now seen corresponding path program 1 times
[2024-11-03 01:41:56,360 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:41:56,360 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750711479]
[2024-11-03 01:41:56,360 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:41:56,361 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:41:56,361 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:41:56,364 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 01:41:56,365 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 01:41:58,006 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:41:58,183 INFO  L255         TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 01:41:58,196 INFO  L278         TraceCheckSpWp]: Computing forward predicates...