/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-2.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:12:47,273 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:12:47,351 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 01:12:47,358 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:12:47,358 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:12:47,390 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:12:47,390 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:12:47,391 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:12:47,391 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:12:47,392 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:12:47,392 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:12:47,393 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:12:47,394 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:12:47,395 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:12:47,395 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:12:47,395 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:12:47,396 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:12:47,396 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:12:47,396 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:12:47,396 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:12:47,397 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:12:47,400 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:12:47,400 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:12:47,400 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:12:47,401 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:12:47,401 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:12:47,401 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:12:47,401 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:12:47,401 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:12:47,402 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:12:47,402 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:12:47,402 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:12:47,402 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:12:47,402 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:12:47,403 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:12:47,403 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:12:47,403 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:12:47,403 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:12:47,403 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:12:47,404 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:12:47,404 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:12:47,405 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:12:47,405 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:12:47,405 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:12:47,406 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:12:47,659 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:12:47,684 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:12:47,689 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:12:47,690 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:12:47,691 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:12:47,693 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-2.i
[2024-11-03 01:12:49,115 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:12:49,358 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:12:49,358 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-2.i
[2024-11-03 01:12:49,369 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d6a2d043/0b8bc2261e2648509277e54cd7f74cfa/FLAG2591b65f7
[2024-11-03 01:12:49,387 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d6a2d043/0b8bc2261e2648509277e54cd7f74cfa
[2024-11-03 01:12:49,390 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:12:49,392 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:12:49,396 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:12:49,397 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:12:49,404 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:12:49,404 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:49,405 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc70ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49, skipping insertion in model container
[2024-11-03 01:12:49,406 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:49,461 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:12:49,617 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-2.i[915,928]
[2024-11-03 01:12:49,813 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:12:49,832 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:12:49,848 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-2.i[915,928]
[2024-11-03 01:12:49,931 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:12:49,958 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:12:49,960 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49 WrapperNode
[2024-11-03 01:12:49,961 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:12:49,962 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:12:49,962 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:12:49,963 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:12:49,969 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:49,996 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,039 INFO  L138                Inliner]: procedures = 27, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 347
[2024-11-03 01:12:50,040 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:12:50,040 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:12:50,040 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:12:50,040 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:12:50,055 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,055 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,063 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,090 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 01:12:50,090 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,091 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,115 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,126 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,134 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,147 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,157 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:12:50,162 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:12:50,163 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:12:50,163 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:12:50,164 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (1/1) ...
[2024-11-03 01:12:50,169 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:12:50,181 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:12:50,198 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 01:12:50,204 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 01:12:50,228 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:12:50,229 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:12:50,229 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:12:50,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:12:50,229 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:12:50,231 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:12:50,375 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:12:50,378 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:13:23,502 INFO  L?                        ?]: Removed 38 outVars from TransFormulas that were not future-live.
[2024-11-03 01:13:23,502 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:13:23,527 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:13:23,528 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:13:23,528 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:13:23 BoogieIcfgContainer
[2024-11-03 01:13:23,528 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:13:23,531 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:13:23,532 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:13:23,535 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:13:23,535 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:12:49" (1/3) ...
[2024-11-03 01:13:23,536 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0110d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:13:23, skipping insertion in model container
[2024-11-03 01:13:23,536 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:12:49" (2/3) ...
[2024-11-03 01:13:23,537 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0110d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:13:23, skipping insertion in model container
[2024-11-03 01:13:23,537 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:13:23" (3/3) ...
[2024-11-03 01:13:23,538 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-2.i
[2024-11-03 01:13:23,553 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:13:23,554 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:13:23,625 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:13:23,631 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;@70f983e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:13:23,631 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:13:23,637 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 148 states, 98 states have (on average 1.5) internal successors, (147), 99 states have internal predecessors, (147), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 01:13:23,661 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-03 01:13:23,661 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:13:23,662 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:23,663 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:13:23,669 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:13:23,670 INFO  L85        PathProgramCache]: Analyzing trace with hash 1593596933, now seen corresponding path program 1 times
[2024-11-03 01:13:23,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:13:23,678 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438447340]
[2024-11-03 01:13:23,678 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:13:23,680 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:13:23,681 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:13:23,683 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 01:13:23,685 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 01:13:24,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:13:24,966 INFO  L255         TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:13:24,981 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:13:25,077 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked.
[2024-11-03 01:13:25,077 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:13:28,885 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked.
[2024-11-03 01:13:28,890 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:13:28,890 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438447340]
[2024-11-03 01:13:28,891 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [438447340] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:13:28,891 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:13:28,892 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:13:28,893 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977367016]
[2024-11-03 01:13:28,894 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:13:28,903 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:13:28,903 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:13:28,935 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:13:28,936 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:13:28,940 INFO  L87              Difference]: Start difference. First operand  has 148 states, 98 states have (on average 1.5) internal successors, (147), 99 states have internal predecessors, (147), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand  has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 01:13:29,002 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:13:29,002 INFO  L93              Difference]: Finished difference Result 289 states and 523 transitions.
[2024-11-03 01:13:29,004 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:13:29,005 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 1 states have call successors, (47) Word has length 304
[2024-11-03 01:13:29,006 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:13:29,016 INFO  L225             Difference]: With dead ends: 289
[2024-11-03 01:13:29,017 INFO  L226             Difference]: Without dead ends: 144
[2024-11-03 01:13:29,026 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 606 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 01:13:29,031 INFO  L432           NwaCegarLoop]: 234 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, 234 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 01:13:29,032 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:13:29,050 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2024-11-03 01:13:29,095 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144.
[2024-11-03 01:13:29,099 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 144 states, 95 states have (on average 1.4736842105263157) internal successors, (140), 95 states have internal predecessors, (140), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 01:13:29,105 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 234 transitions.
[2024-11-03 01:13:29,108 INFO  L78                 Accepts]: Start accepts. Automaton has 144 states and 234 transitions. Word has length 304
[2024-11-03 01:13:29,108 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:13:29,108 INFO  L471      AbstractCegarLoop]: Abstraction has 144 states and 234 transitions.
[2024-11-03 01:13:29,109 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 01:13:29,109 INFO  L276                IsEmpty]: Start isEmpty. Operand 144 states and 234 transitions.
[2024-11-03 01:13:29,116 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-03 01:13:29,116 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:13:29,116 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:29,129 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 01:13:29,317 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 01:13:29,318 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:13:29,318 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:13:29,319 INFO  L85        PathProgramCache]: Analyzing trace with hash -1975020293, now seen corresponding path program 1 times
[2024-11-03 01:13:29,319 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:13:29,319 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293330051]
[2024-11-03 01:13:29,319 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:13:29,320 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:13:29,320 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:13:29,322 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 01:13:29,325 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 01:13:30,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:13:30,594 INFO  L255         TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:13:30,603 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:13:31,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:13:31,611 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:13:36,446 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:13:36,446 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:13:36,446 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293330051]
[2024-11-03 01:13:36,446 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1293330051] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:13:36,447 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:13:36,447 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 01:13:36,448 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422067616]
[2024-11-03 01:13:36,448 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:13:36,450 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:13:36,450 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:13:36,451 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:13:36,451 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:13:36,452 INFO  L87              Difference]: Start difference. First operand 144 states and 234 transitions. Second operand  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 01:13:41,322 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:13:46,500 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:13:50,505 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:13:50,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:13:50,767 INFO  L93              Difference]: Finished difference Result 422 states and 688 transitions.
[2024-11-03 01:13:50,769 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:13:50,769 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 304
[2024-11-03 01:13:50,771 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:13:50,777 INFO  L225             Difference]: With dead ends: 422
[2024-11-03 01:13:50,778 INFO  L226             Difference]: Without dead ends: 281
[2024-11-03 01:13:50,780 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:13:50,781 INFO  L432           NwaCegarLoop]: 234 mSDtfsCounter, 201 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time
[2024-11-03 01:13:50,782 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 442 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 18 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time]
[2024-11-03 01:13:50,783 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 281 states.
[2024-11-03 01:13:50,809 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 186.
[2024-11-03 01:13:50,810 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 186 states, 137 states have (on average 1.5401459854014599) internal successors, (211), 137 states have internal predecessors, (211), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 01:13:50,815 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 305 transitions.
[2024-11-03 01:13:50,816 INFO  L78                 Accepts]: Start accepts. Automaton has 186 states and 305 transitions. Word has length 304
[2024-11-03 01:13:50,820 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:13:50,820 INFO  L471      AbstractCegarLoop]: Abstraction has 186 states and 305 transitions.
[2024-11-03 01:13:50,821 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 01:13:50,821 INFO  L276                IsEmpty]: Start isEmpty. Operand 186 states and 305 transitions.
[2024-11-03 01:13:50,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 305
[2024-11-03 01:13:50,829 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:13:50,830 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:50,849 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0
[2024-11-03 01:13:51,033 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 01:13:51,034 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:13:51,035 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:13:51,035 INFO  L85        PathProgramCache]: Analyzing trace with hash -1465547203, now seen corresponding path program 1 times
[2024-11-03 01:13:51,036 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:13:51,036 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788075664]
[2024-11-03 01:13:51,036 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:13:51,036 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:13:51,036 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:13:51,038 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 01:13:51,040 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 01:13:52,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:13:52,321 INFO  L255         TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:13:52,329 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:14:05,599 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:14:05,599 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:14:14,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:14:14,196 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:14:14,196 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788075664]
[2024-11-03 01:14:14,196 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [788075664] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:14:14,196 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:14:14,197 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3
[2024-11-03 01:14:14,197 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516747673]
[2024-11-03 01:14:14,197 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:14:14,198 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 01:14:14,198 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:14:14,199 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 01:14:14,199 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:14:14,200 INFO  L87              Difference]: Start difference. First operand 186 states and 305 transitions. Second operand  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94)
[2024-11-03 01:14:19,520 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:14:23,525 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:14:23,539 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:14:23,540 INFO  L93              Difference]: Finished difference Result 542 states and 890 transitions.
[2024-11-03 01:14:23,776 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 01:14:23,776 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 304
[2024-11-03 01:14:23,778 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:14:23,781 INFO  L225             Difference]: With dead ends: 542
[2024-11-03 01:14:23,781 INFO  L226             Difference]: Without dead ends: 359
[2024-11-03 01:14:23,782 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 01:14:23,783 INFO  L432           NwaCegarLoop]: 229 mSDtfsCounter, 74 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time
[2024-11-03 01:14:23,784 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 446 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time]
[2024-11-03 01:14:23,785 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 359 states.
[2024-11-03 01:14:23,849 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 356.
[2024-11-03 01:14:23,850 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 356 states, 259 states have (on average 1.5173745173745175) internal successors, (393), 259 states have internal predecessors, (393), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94)
[2024-11-03 01:14:23,856 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 581 transitions.
[2024-11-03 01:14:23,857 INFO  L78                 Accepts]: Start accepts. Automaton has 356 states and 581 transitions. Word has length 304
[2024-11-03 01:14:23,858 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:14:23,859 INFO  L471      AbstractCegarLoop]: Abstraction has 356 states and 581 transitions.
[2024-11-03 01:14:23,859 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94)
[2024-11-03 01:14:23,859 INFO  L276                IsEmpty]: Start isEmpty. Operand 356 states and 581 transitions.
[2024-11-03 01:14:23,863 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 306
[2024-11-03 01:14:23,864 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:14:23,864 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:23,875 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 01:14:24,065 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:14:24,065 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:14:24,066 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:14:24,066 INFO  L85        PathProgramCache]: Analyzing trace with hash -630474980, now seen corresponding path program 1 times
[2024-11-03 01:14:24,066 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:14:24,066 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018242025]
[2024-11-03 01:14:24,067 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:14:24,067 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:14:24,067 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:14:24,070 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:14:24,071 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:14:25,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:14:25,334 INFO  L255         TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 01:14:25,341 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:14:25,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 01:14:25,737 INFO  L311         TraceCheckSpWp]: Computing backward predicates...