/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-28.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 00:55:51,392 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 00:55:51,460 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 00:55:51,463 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 00:55:51,464 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 00:55:51,491 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 00:55:51,494 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 00:55:51,494 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 00:55:51,495 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 00:55:51,495 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 00:55:51,496 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 00:55:51,496 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 00:55:51,496 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 00:55:51,497 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 00:55:51,497 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 00:55:51,497 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 00:55:51,497 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 00:55:51,498 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 00:55:51,498 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 00:55:51,500 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 00:55:51,502 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 00:55:51,503 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 00:55:51,503 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 00:55:51,503 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 00:55:51,503 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 00:55:51,503 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 00:55:51,504 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 00:55:51,504 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 00:55:51,504 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 00:55:51,504 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 00:55:51,504 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 00:55:51,505 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 00:55:51,505 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 00:55:51,505 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 00:55:51,505 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:55:51,505 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 00:55:51,506 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 00:55:51,506 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 00:55:51,506 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 00:55:51,507 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 00:55:51,508 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 00:55:51,508 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 00:55:51,508 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 00:55:51,508 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 00:55:51,508 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 00:55:51,712 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 00:55:51,737 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 00:55:51,739 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 00:55:51,739 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 00:55:51,740 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 00:55:51,740 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-28.i
[2024-11-03 00:55:53,162 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 00:55:53,341 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 00:55:53,342 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-28.i
[2024-11-03 00:55:53,354 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfadc2cc1/fe23dd6c095e40bd9bc368fca0157bef/FLAG8c389dd09
[2024-11-03 00:55:53,374 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfadc2cc1/fe23dd6c095e40bd9bc368fca0157bef
[2024-11-03 00:55:53,376 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 00:55:53,378 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 00:55:53,379 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 00:55:53,379 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 00:55:53,388 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 00:55:53,389 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,390 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c89999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53, skipping insertion in model container
[2024-11-03 00:55:53,390 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,425 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 00:55:53,549 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-28.i[916,929]
[2024-11-03 00:55:53,630 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:55:53,641 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 00:55:53,650 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-28.i[916,929]
[2024-11-03 00:55:53,686 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:55:53,700 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 00:55:53,701 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53 WrapperNode
[2024-11-03 00:55:53,701 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 00:55:53,702 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 00:55:53,702 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 00:55:53,702 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 00:55:53,706 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,722 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,755 INFO  L138                Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 248
[2024-11-03 00:55:53,755 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 00:55:53,756 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 00:55:53,756 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 00:55:53,756 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 00:55:53,764 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,764 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,768 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,779 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-03 00:55:53,779 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,780 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,788 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,791 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,793 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,794 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,797 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 00:55:53,798 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 00:55:53,798 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 00:55:53,798 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 00:55:53,799 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (1/1) ...
[2024-11-03 00:55:53,803 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:55:53,812 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 00:55:53,829 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-03 00:55:53,832 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-03 00:55:53,853 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 00:55:53,853 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 00:55:53,854 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 00:55:53,854 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 00:55:53,854 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 00:55:53,854 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 00:55:53,939 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 00:55:53,941 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 00:56:03,756 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-03 00:56:03,756 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 00:56:03,768 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 00:56:03,768 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 00:56:03,768 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:56:03 BoogieIcfgContainer
[2024-11-03 00:56:03,769 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 00:56:03,772 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 00:56:03,772 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 00:56:03,776 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 00:56:03,776 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:55:53" (1/3) ...
[2024-11-03 00:56:03,777 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5dde6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:56:03, skipping insertion in model container
[2024-11-03 00:56:03,777 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:55:53" (2/3) ...
[2024-11-03 00:56:03,778 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5dde6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:56:03, skipping insertion in model container
[2024-11-03 00:56:03,778 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:56:03" (3/3) ...
[2024-11-03 00:56:03,779 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-28.i
[2024-11-03 00:56:03,794 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 00:56:03,794 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 00:56:03,869 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 00:56:03,875 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;@1c1957c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 00:56:03,875 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 00:56:03,878 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 113 states, 67 states have (on average 1.373134328358209) internal successors, (92), 68 states have internal predecessors, (92), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-03 00:56:03,893 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 267
[2024-11-03 00:56:03,893 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:56:03,894 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 00:56:03,894 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:56:03,898 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:56:03,898 INFO  L85        PathProgramCache]: Analyzing trace with hash -1685493628, now seen corresponding path program 1 times
[2024-11-03 00:56:03,907 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:56:03,907 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667636666]
[2024-11-03 00:56:03,907 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:56:03,908 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:03,909 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:56:03,917 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:56:03,923 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 00:56:04,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:56:04,654 INFO  L255         TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 00:56:04,664 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:56:04,705 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked.
[2024-11-03 00:56:04,705 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:56:06,167 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked.
[2024-11-03 00:56:06,168 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:56:06,169 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667636666]
[2024-11-03 00:56:06,169 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [667636666] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:56:06,169 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:56:06,170 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 00:56:06,171 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523713806]
[2024-11-03 00:56:06,171 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:56:06,175 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 00:56:06,175 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:56:06,192 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 00:56:06,193 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 00:56:06,194 INFO  L87              Difference]: Start difference. First operand  has 113 states, 67 states have (on average 1.373134328358209) internal successors, (92), 68 states have internal predecessors, (92), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-03 00:56:06,221 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:56:06,221 INFO  L93              Difference]: Finished difference Result 219 states and 393 transitions.
[2024-11-03 00:56:06,223 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 00:56:06,224 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) Word has length 266
[2024-11-03 00:56:06,225 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:56:06,230 INFO  L225             Difference]: With dead ends: 219
[2024-11-03 00:56:06,231 INFO  L226             Difference]: Without dead ends: 109
[2024-11-03 00:56:06,235 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 00:56:06,239 INFO  L432           NwaCegarLoop]: 171 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, 171 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 00:56:06,240 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 00:56:06,252 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2024-11-03 00:56:06,274 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109.
[2024-11-03 00:56:06,275 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 109 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-03 00:56:06,277 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 171 transitions.
[2024-11-03 00:56:06,279 INFO  L78                 Accepts]: Start accepts. Automaton has 109 states and 171 transitions. Word has length 266
[2024-11-03 00:56:06,279 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:56:06,279 INFO  L471      AbstractCegarLoop]: Abstraction has 109 states and 171 transitions.
[2024-11-03 00:56:06,279 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-03 00:56:06,280 INFO  L276                IsEmpty]: Start isEmpty. Operand 109 states and 171 transitions.
[2024-11-03 00:56:06,283 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 267
[2024-11-03 00:56:06,283 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:56:06,283 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 00:56:06,295 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0
[2024-11-03 00:56:06,484 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:06,484 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:56:06,485 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:56:06,485 INFO  L85        PathProgramCache]: Analyzing trace with hash 1723204874, now seen corresponding path program 1 times
[2024-11-03 00:56:06,485 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:56:06,485 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217926672]
[2024-11-03 00:56:06,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:56:06,486 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:06,486 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:56:06,494 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:56:06,495 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 00:56:07,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:56:07,122 INFO  L255         TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 00:56:07,129 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:56:07,280 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked.
[2024-11-03 00:56:07,280 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:56:08,577 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked.
[2024-11-03 00:56:08,578 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:56:08,578 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217926672]
[2024-11-03 00:56:08,579 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1217926672] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:56:08,579 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:56:08,579 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 00:56:08,579 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131130873]
[2024-11-03 00:56:08,579 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:56:08,583 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 00:56:08,583 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:56:08,587 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 00:56:08,587 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 00:56:08,588 INFO  L87              Difference]: Start difference. First operand 109 states and 171 transitions. Second operand  has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-03 00:56:13,226 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:17,246 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:17,258 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:56:17,258 INFO  L93              Difference]: Finished difference Result 318 states and 501 transitions.
[2024-11-03 00:56:17,314 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 00:56:17,315 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 266
[2024-11-03 00:56:17,316 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:56:17,319 INFO  L225             Difference]: With dead ends: 318
[2024-11-03 00:56:17,319 INFO  L226             Difference]: Without dead ends: 212
[2024-11-03 00:56:17,320 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 00:56:17,321 INFO  L432           NwaCegarLoop]: 179 mSDtfsCounter, 156 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time
[2024-11-03 00:56:17,321 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 331 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time]
[2024-11-03 00:56:17,322 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 212 states.
[2024-11-03 00:56:17,336 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 122.
[2024-11-03 00:56:17,337 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 122 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 77 states have internal predecessors, (105), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-03 00:56:17,338 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 191 transitions.
[2024-11-03 00:56:17,338 INFO  L78                 Accepts]: Start accepts. Automaton has 122 states and 191 transitions. Word has length 266
[2024-11-03 00:56:17,340 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:56:17,340 INFO  L471      AbstractCegarLoop]: Abstraction has 122 states and 191 transitions.
[2024-11-03 00:56:17,341 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-03 00:56:17,341 INFO  L276                IsEmpty]: Start isEmpty. Operand 122 states and 191 transitions.
[2024-11-03 00:56:17,344 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 267
[2024-11-03 00:56:17,344 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:56:17,344 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 00:56:17,355 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 00:56:17,548 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:17,549 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:56:17,550 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:56:17,550 INFO  L85        PathProgramCache]: Analyzing trace with hash 702136520, now seen corresponding path program 1 times
[2024-11-03 00:56:17,550 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:56:17,550 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430434617]
[2024-11-03 00:56:17,550 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:56:17,550 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:17,551 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:56:17,552 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:56:17,554 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 00:56:19,457 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:56:19,501 INFO  L255         TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 00:56:19,507 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:56:21,435 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1842 proven. 66 refuted. 0 times theorem prover too weak. 1704 trivial. 0 not checked.
[2024-11-03 00:56:21,436 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:56:23,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 60 proven. 66 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2024-11-03 00:56:23,615 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:56:23,616 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430434617]
[2024-11-03 00:56:23,616 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [430434617] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 00:56:23,616 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 00:56:23,616 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2024-11-03 00:56:23,616 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786178398]
[2024-11-03 00:56:23,616 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 00:56:23,617 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-03 00:56:23,617 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:56:23,622 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-03 00:56:23,622 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-03 00:56:23,622 INFO  L87              Difference]: Start difference. First operand 122 states and 191 transitions. Second operand  has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2024-11-03 00:56:27,600 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:32,060 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:36,065 WARN  L539   Checker$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 00:56:40,110 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:56:40,113 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:56:40,113 INFO  L93              Difference]: Finished difference Result 234 states and 361 transitions.
[2024-11-03 00:56:40,182 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 00:56:40,183 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 266
[2024-11-03 00:56:40,184 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:56:40,185 INFO  L225             Difference]: With dead ends: 234
[2024-11-03 00:56:40,185 INFO  L226             Difference]: Without dead ends: 115
[2024-11-03 00:56:40,186 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 523 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210
[2024-11-03 00:56:40,187 INFO  L432           NwaCegarLoop]: 115 mSDtfsCounter, 268 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 262 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time
[2024-11-03 00:56:40,187 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 256 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 242 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time]
[2024-11-03 00:56:40,188 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2024-11-03 00:56:40,216 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113.
[2024-11-03 00:56:40,216 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 67 states have internal predecessors, (84), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-03 00:56:40,217 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 170 transitions.
[2024-11-03 00:56:40,218 INFO  L78                 Accepts]: Start accepts. Automaton has 113 states and 170 transitions. Word has length 266
[2024-11-03 00:56:40,218 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:56:40,218 INFO  L471      AbstractCegarLoop]: Abstraction has 113 states and 170 transitions.
[2024-11-03 00:56:40,219 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2024-11-03 00:56:40,219 INFO  L276                IsEmpty]: Start isEmpty. Operand 113 states and 170 transitions.
[2024-11-03 00:56:40,221 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 268
[2024-11-03 00:56:40,221 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:56:40,222 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 00:56:40,242 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 00:56:40,423 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:40,424 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:56:40,424 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:56:40,425 INFO  L85        PathProgramCache]: Analyzing trace with hash -1775043344, now seen corresponding path program 1 times
[2024-11-03 00:56:40,425 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:56:40,425 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157743306]
[2024-11-03 00:56:40,425 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:56:40,425 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:56:40,426 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:56:40,428 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:56:40,429 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 00:57:15,130 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:57:15,199 INFO  L255         TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 81 conjuncts are in the unsatisfiable core
[2024-11-03 00:57:15,219 INFO  L278         TraceCheckSpWp]: Computing forward predicates...