/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-23.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:50:56,658 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:50:56,743 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 21:50:56,748 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:50:56,749 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:50:56,775 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:50:56,775 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:50:56,775 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:50:56,776 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:50:56,776 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:50:56,777 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:50:56,777 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:50:56,777 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:50:56,778 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:50:56,778 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:50:56,779 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:50:56,779 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:50:56,779 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:50:56,780 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:50:56,780 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:50:56,780 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:50:56,781 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:50:56,781 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:50:56,781 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:50:56,781 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:50:56,782 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:50:56,782 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:50:56,782 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:50:56,782 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:50:56,783 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:50:56,783 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:50:56,783 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:50:56,783 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:50:56,784 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:50:56,784 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:50:56,789 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:50:56,789 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:50:56,789 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:50:56,789 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:50:56,790 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:50:56,790 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:50:56,791 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:50:56,791 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:50:56,791 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:50:56,791 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:50:57,062 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:50:57,088 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:50:57,090 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:50:57,091 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:50:57,092 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:50:57,093 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-23.i
[2024-11-02 21:50:58,568 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:50:58,828 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:50:58,829 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-23.i
[2024-11-02 21:50:58,843 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0708ede76/52080c8d2c994b5aa8c4c17a62229893/FLAGc95e5c011
[2024-11-02 21:50:58,857 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0708ede76/52080c8d2c994b5aa8c4c17a62229893
[2024-11-02 21:50:58,859 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:50:58,861 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:50:58,862 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:50:58,862 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:50:58,868 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:50:58,868 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:50:58" (1/1) ...
[2024-11-02 21:50:58,869 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a013567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:58, skipping insertion in model container
[2024-11-02 21:50:58,870 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:50:58" (1/1) ...
[2024-11-02 21:50:58,921 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:50:59,096 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-23.i[916,929]
[2024-11-02 21:50:59,253 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:50:59,269 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:50:59,286 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-23.i[916,929]
[2024-11-02 21:50:59,347 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:50:59,383 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:50:59,384 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59 WrapperNode
[2024-11-02 21:50:59,385 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:50:59,386 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:50:59,386 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:50:59,386 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:50:59,395 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,418 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,463 INFO  L138                Inliner]: procedures = 27, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 372
[2024-11-02 21:50:59,463 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:50:59,464 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:50:59,464 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:50:59,464 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:50:59,475 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,475 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,489 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,548 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].
[2024-11-02 21:50:59,548 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,554 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,584 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,594 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,602 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,606 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,612 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:50:59,613 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:50:59,613 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:50:59,613 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:50:59,614 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (1/1) ...
[2024-11-02 21:50:59,619 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:50:59,633 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:50:59,656 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)
[2024-11-02 21:50:59,659 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
[2024-11-02 21:50:59,690 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:50:59,690 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:50:59,690 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:50:59,690 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:50:59,690 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:50:59,690 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:50:59,803 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:50:59,805 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:51:14,581 INFO  L?                        ?]: Removed 60 outVars from TransFormulas that were not future-live.
[2024-11-02 21:51:14,581 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:51:14,605 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:51:14,605 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:51:14,606 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:51:14 BoogieIcfgContainer
[2024-11-02 21:51:14,606 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:51:14,608 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:51:14,608 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:51:14,612 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:51:14,612 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:50:58" (1/3) ...
[2024-11-02 21:51:14,613 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782d97f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:51:14, skipping insertion in model container
[2024-11-02 21:51:14,613 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:50:59" (2/3) ...
[2024-11-02 21:51:14,613 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782d97f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:51:14, skipping insertion in model container
[2024-11-02 21:51:14,614 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:51:14" (3/3) ...
[2024-11-02 21:51:14,615 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-23.i
[2024-11-02 21:51:14,630 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:51:14,630 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:51:14,712 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:51:14,718 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;@66acbcbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:51:14,719 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:51:14,726 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 168 states, 108 states have (on average 1.4722222222222223) internal successors, (159), 109 states have internal predecessors, (159), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57)
[2024-11-02 21:51:14,749 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 366
[2024-11-02 21:51:14,749 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:51:14,751 INFO  L215           NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:51:14,751 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:51:14,757 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:51:14,758 INFO  L85        PathProgramCache]: Analyzing trace with hash -884801934, now seen corresponding path program 1 times
[2024-11-02 21:51:14,766 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:51:14,766 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717889011]
[2024-11-02 21:51:14,766 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:51:14,768 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:51:14,768 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:51:14,770 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:51:14,771 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 21:51:15,525 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:51:15,618 INFO  L255         TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:51:15,634 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:51:15,718 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 6272 trivial. 0 not checked.
[2024-11-02 21:51:15,719 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:51:18,731 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 6272 trivial. 0 not checked.
[2024-11-02 21:51:18,732 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:51:18,733 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717889011]
[2024-11-02 21:51:18,733 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [717889011] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:51:18,733 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:51:18,734 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:51:18,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736708494]
[2024-11-02 21:51:18,736 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:51:18,741 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:51:18,741 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:51:18,766 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:51:18,767 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:51:18,771 INFO  L87              Difference]: Start difference. First operand  has 168 states, 108 states have (on average 1.4722222222222223) internal successors, (159), 109 states have internal predecessors, (159), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand  has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 2 states have call successors, (57)
[2024-11-02 21:51:18,823 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:51:18,823 INFO  L93              Difference]: Finished difference Result 329 states and 597 transitions.
[2024-11-02 21:51:18,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:51:18,826 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 2 states have call successors, (57) Word has length 365
[2024-11-02 21:51:18,826 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:51:18,834 INFO  L225             Difference]: With dead ends: 329
[2024-11-02 21:51:18,835 INFO  L226             Difference]: Without dead ends: 164
[2024-11-02 21:51:18,839 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 728 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:51:18,842 INFO  L432           NwaCegarLoop]: 266 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, 266 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
[2024-11-02 21:51:18,843 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:51:18,859 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 164 states.
[2024-11-02 21:51:18,906 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164.
[2024-11-02 21:51:18,910 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 164 states, 105 states have (on average 1.4476190476190476) internal successors, (152), 105 states have internal predecessors, (152), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57)
[2024-11-02 21:51:18,912 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 266 transitions.
[2024-11-02 21:51:18,914 INFO  L78                 Accepts]: Start accepts. Automaton has 164 states and 266 transitions. Word has length 365
[2024-11-02 21:51:18,915 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:51:18,915 INFO  L471      AbstractCegarLoop]: Abstraction has 164 states and 266 transitions.
[2024-11-02 21:51:18,915 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 2 states have call successors, (57)
[2024-11-02 21:51:18,915 INFO  L276                IsEmpty]: Start isEmpty. Operand 164 states and 266 transitions.
[2024-11-02 21:51:18,923 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 366
[2024-11-02 21:51:18,924 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:51:18,924 INFO  L215           NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:51:18,999 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-02 21:51:19,125 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:51:19,125 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:51:19,126 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:51:19,126 INFO  L85        PathProgramCache]: Analyzing trace with hash -717188040, now seen corresponding path program 1 times
[2024-11-02 21:51:19,127 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:51:19,127 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820996631]
[2024-11-02 21:51:19,127 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:51:19,127 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:51:19,127 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:51:19,128 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:51:19,129 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 21:51:19,859 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:51:19,952 INFO  L255         TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:51:19,969 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:51:20,382 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked.
[2024-11-02 21:51:20,382 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:51:23,725 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked.
[2024-11-02 21:51:23,725 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:51:23,726 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820996631]
[2024-11-02 21:51:23,726 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [820996631] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:51:23,727 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:51:23,727 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 21:51:23,728 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371107460]
[2024-11-02 21:51:23,728 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:51:23,730 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 21:51:23,730 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:51:23,731 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 21:51:23,734 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:51:23,734 INFO  L87              Difference]: Start difference. First operand 164 states and 266 transitions. Second operand  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57)
[2024-11-02 21:51:28,673 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:51:33,099 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:51:33,562 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:51:33,562 INFO  L93              Difference]: Finished difference Result 457 states and 740 transitions.
[2024-11-02 21:51:33,564 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:51:33,564 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 365
[2024-11-02 21:51:33,566 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:51:33,571 INFO  L225             Difference]: With dead ends: 457
[2024-11-02 21:51:33,572 INFO  L226             Difference]: Without dead ends: 296
[2024-11-02 21:51:33,574 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 727 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:51:33,575 INFO  L432           NwaCegarLoop]: 258 mSDtfsCounter, 195 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time
[2024-11-02 21:51:33,575 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 490 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 29 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time]
[2024-11-02 21:51:33,577 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 296 states.
[2024-11-02 21:51:33,606 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 185.
[2024-11-02 21:51:33,607 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 185 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 126 states have internal predecessors, (182), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57)
[2024-11-02 21:51:33,608 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 296 transitions.
[2024-11-02 21:51:33,609 INFO  L78                 Accepts]: Start accepts. Automaton has 185 states and 296 transitions. Word has length 365
[2024-11-02 21:51:33,611 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:51:33,611 INFO  L471      AbstractCegarLoop]: Abstraction has 185 states and 296 transitions.
[2024-11-02 21:51:33,612 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57)
[2024-11-02 21:51:33,612 INFO  L276                IsEmpty]: Start isEmpty. Operand 185 states and 296 transitions.
[2024-11-02 21:51:33,615 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 366
[2024-11-02 21:51:33,615 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:51:33,615 INFO  L215           NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:51:33,691 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 21:51:33,815 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:51:33,816 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:51:33,817 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:51:33,817 INFO  L85        PathProgramCache]: Analyzing trace with hash -200035016, now seen corresponding path program 1 times
[2024-11-02 21:51:33,817 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:51:33,817 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910839184]
[2024-11-02 21:51:33,817 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:51:33,818 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:51:33,818 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:51:33,820 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:51:33,821 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 21:51:34,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:51:34,528 INFO  L255         TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 21:51:34,537 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:51:35,387 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked.
[2024-11-02 21:51:35,389 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:51:38,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked.
[2024-11-02 21:51:38,932 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:51:38,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910839184]
[2024-11-02 21:51:38,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [910839184] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:51:38,932 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:51:38,933 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 3] imperfect sequences [] total 6
[2024-11-02 21:51:38,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429728952]
[2024-11-02 21:51:38,933 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:51:38,934 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 21:51:38,934 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:51:38,935 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 21:51:38,935 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-02 21:51:38,936 INFO  L87              Difference]: Start difference. First operand 185 states and 296 transitions. Second operand  has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57)
[2024-11-02 21:51:45,895 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 21:51:49,910 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 21:51:53,916 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 21:51:57,924 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 21:52:01,933 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 21:52:05,938 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:52:09,949 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 21:52:13,957 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:52:17,961 WARN  L539   Checker$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 []
[2024-11-02 21:52:21,967 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 21:52:25,973 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:52:29,983 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-02 21:52:33,989 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:52:34,256 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:52:34,256 INFO  L93              Difference]: Finished difference Result 506 states and 812 transitions.
[2024-11-02 21:52:34,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-02 21:52:34,257 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 365
[2024-11-02 21:52:34,261 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:52:34,263 INFO  L225             Difference]: With dead ends: 506
[2024-11-02 21:52:34,264 INFO  L226             Difference]: Without dead ends: 324
[2024-11-02 21:52:34,264 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 724 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-02 21:52:34,265 INFO  L432           NwaCegarLoop]: 317 mSDtfsCounter, 160 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.1s IncrementalHoareTripleChecker+Time
[2024-11-02 21:52:34,266 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1436 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 13 Unknown, 0 Unchecked, 55.1s Time]
[2024-11-02 21:52:34,267 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 324 states.
[2024-11-02 21:52:34,297 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 259.
[2024-11-02 21:52:34,298 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 259 states, 195 states have (on average 1.476923076923077) internal successors, (288), 196 states have internal predecessors, (288), 61 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61)
[2024-11-02 21:52:34,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 410 transitions.
[2024-11-02 21:52:34,301 INFO  L78                 Accepts]: Start accepts. Automaton has 259 states and 410 transitions. Word has length 365
[2024-11-02 21:52:34,302 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:52:34,302 INFO  L471      AbstractCegarLoop]: Abstraction has 259 states and 410 transitions.
[2024-11-02 21:52:34,302 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57)
[2024-11-02 21:52:34,302 INFO  L276                IsEmpty]: Start isEmpty. Operand 259 states and 410 transitions.
[2024-11-02 21:52:34,306 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 366
[2024-11-02 21:52:34,306 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:52:34,307 INFO  L215           NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:52:34,386 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-02 21:52:34,507 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:52:34,508 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:52:34,509 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:52:34,509 INFO  L85        PathProgramCache]: Analyzing trace with hash 1647416888, now seen corresponding path program 1 times
[2024-11-02 21:52:34,509 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:52:34,509 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496607366]
[2024-11-02 21:52:34,509 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:52:34,510 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:52:34,510 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:52:34,511 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:52:34,512 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 21:52:35,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:52:35,297 INFO  L255         TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-02 21:52:35,305 INFO  L278         TraceCheckSpWp]: Computing forward predicates...