/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-37.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:31:34,020 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:31:34,078 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 12:31:34,081 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:31:34,082 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:31:34,108 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:31:34,108 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:31:34,108 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:31:34,109 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:31:34,110 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:31:34,111 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:31:34,111 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:31:34,111 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:31:34,114 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:31:34,114 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:31:34,115 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:31:34,115 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:31:34,115 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:31:34,115 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:31:34,115 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:31:34,115 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:31:34,117 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:31:34,118 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:31:34,118 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:31:34,118 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:31:34,118 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:31:34,118 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:31:34,118 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:31:34,118 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:31:34,119 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:31:34,119 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:31:34,119 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:31:34,119 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:31:34,119 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:31:34,119 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:31:34,120 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:31:34,120 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:31:34,120 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:31:34,120 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:31:34,120 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:31:34,120 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:31:34,121 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:31:34,121 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:31:34,122 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:31:34,122 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:31:34,342 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:31:34,358 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:31:34,360 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:31:34,361 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:31:34,361 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:31:34,362 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-37.i
[2024-11-03 12:31:35,721 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:31:35,901 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:31:35,901 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-37.i
[2024-11-03 12:31:35,921 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c23e2d1/9df3503aebbf4571b7b1ac066d8a1469/FLAGf99cc361b
[2024-11-03 12:31:35,938 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c23e2d1/9df3503aebbf4571b7b1ac066d8a1469
[2024-11-03 12:31:35,940 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:31:35,942 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:31:35,945 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:31:35,945 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:31:35,950 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:31:35,950 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:31:35" (1/1) ...
[2024-11-03 12:31:35,951 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469da9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:35, skipping insertion in model container
[2024-11-03 12:31:35,951 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:31:35" (1/1) ...
[2024-11-03 12:31:35,985 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:31:36,132 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-37.i[916,929]
[2024-11-03 12:31:36,195 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:31:36,208 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:31:36,218 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-37.i[916,929]
[2024-11-03 12:31:36,252 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:31:36,268 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:31:36,270 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36 WrapperNode
[2024-11-03 12:31:36,270 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:31:36,271 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:31:36,271 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:31:36,271 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:31:36,277 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,296 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,363 INFO  L138                Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 177
[2024-11-03 12:31:36,364 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:31:36,364 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:31:36,365 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:31:36,365 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:31:36,384 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,384 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,393 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,420 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 12:31:36,420 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,421 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,444 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,456 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,461 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,463 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,477 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:31:36,478 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:31:36,478 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:31:36,478 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:31:36,489 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (1/1) ...
[2024-11-03 12:31:36,499 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:31:36,511 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:31:36,535 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 12:31:36,542 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 12:31:36,569 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:31:36,569 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:31:36,569 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:31:36,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:31:36,569 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:31:36,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:31:36,656 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:31:36,658 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:31:49,016 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-03 12:31:49,016 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:31:49,026 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:31:49,026 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:31:49,026 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:31:49 BoogieIcfgContainer
[2024-11-03 12:31:49,026 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:31:49,028 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:31:49,028 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:31:49,031 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:31:49,031 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:31:35" (1/3) ...
[2024-11-03 12:31:49,031 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b9cb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:31:49, skipping insertion in model container
[2024-11-03 12:31:49,031 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:36" (2/3) ...
[2024-11-03 12:31:49,032 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b9cb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:31:49, skipping insertion in model container
[2024-11-03 12:31:49,032 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:31:49" (3/3) ...
[2024-11-03 12:31:49,033 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-37.i
[2024-11-03 12:31:49,044 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:31:49,044 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:31:49,084 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:31:49,089 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;@535f88ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:31:49,089 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:31:49,093 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 74 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 52 states have internal predecessors, (75), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 12:31:49,102 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-03 12:31:49,103 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:31:49,104 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:49,104 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:31:49,108 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:31:49,108 INFO  L85        PathProgramCache]: Analyzing trace with hash 2079175466, now seen corresponding path program 1 times
[2024-11-03 12:31:49,114 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:31:49,114 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549859287]
[2024-11-03 12:31:49,114 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:31:49,116 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:31:49,116 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:49,118 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:31:49,119 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:31:49,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:31:49,230 INFO  L255         TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:31:49,236 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:31:49,287 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-03 12:31:49,288 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:31:50,255 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-03 12:31:50,255 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:31:50,256 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549859287]
[2024-11-03 12:31:50,256 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1549859287] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:31:50,256 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:31:50,256 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:31:50,258 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067838482]
[2024-11-03 12:31:50,258 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:31:50,261 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:31:50,262 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:31:50,277 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:31:50,277 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:31:50,279 INFO  L87              Difference]: Start difference. First operand  has 74 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 52 states have internal predecessors, (75), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 12:31:50,297 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:31:50,298 INFO  L93              Difference]: Finished difference Result 141 states and 244 transitions.
[2024-11-03 12:31:50,299 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:31:50,300 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 135
[2024-11-03 12:31:50,300 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:31:50,305 INFO  L225             Difference]: With dead ends: 141
[2024-11-03 12:31:50,306 INFO  L226             Difference]: Without dead ends: 70
[2024-11-03 12:31:50,308 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 268 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 12:31:50,310 INFO  L432           NwaCegarLoop]: 108 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, 108 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 12:31:50,311 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:31:50,323 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2024-11-03 12:31:50,339 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70.
[2024-11-03 12:31:50,340 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 12:31:50,341 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 108 transitions.
[2024-11-03 12:31:50,343 INFO  L78                 Accepts]: Start accepts. Automaton has 70 states and 108 transitions. Word has length 135
[2024-11-03 12:31:50,343 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:31:50,343 INFO  L471      AbstractCegarLoop]: Abstraction has 70 states and 108 transitions.
[2024-11-03 12:31:50,343 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 12:31:50,343 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 108 transitions.
[2024-11-03 12:31:50,345 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2024-11-03 12:31:50,346 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:31:50,346 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:50,348 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 12:31:50,548 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:50,548 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:31:50,549 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:31:50,549 INFO  L85        PathProgramCache]: Analyzing trace with hash -1935044122, now seen corresponding path program 1 times
[2024-11-03 12:31:50,549 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:31:50,550 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886704682]
[2024-11-03 12:31:50,550 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:31:50,550 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:31:50,550 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:50,552 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:31:50,559 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:31:50,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:31:50,633 INFO  L255         TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 12:31:50,641 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:31:52,738 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 393 proven. 24 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked.
[2024-11-03 12:31:52,739 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:31:55,402 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked.
[2024-11-03 12:31:55,403 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:31:55,403 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886704682]
[2024-11-03 12:31:55,403 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [886704682] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:31:55,403 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:31:55,403 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2024-11-03 12:31:55,404 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52134327]
[2024-11-03 12:31:55,404 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:31:55,405 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-03 12:31:55,405 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:31:55,406 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-03 12:31:55,406 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-11-03 12:31:55,406 INFO  L87              Difference]: Start difference. First operand 70 states and 108 transitions. Second operand  has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29)
[2024-11-03 12:32:03,383 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 []
[2024-11-03 12:32:07,393 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:32:11,407 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:32:15,412 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:32:19,419 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:32:23,445 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:32:27,449 WARN  L539   Checker$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 12:32:31,455 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:32:35,466 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:32:39,472 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:32:43,480 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:32:47,489 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:32:49,136 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:32:49,136 INFO  L93              Difference]: Finished difference Result 236 states and 353 transitions.
[2024-11-03 12:32:49,137 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2024-11-03 12:32:49,137 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 135
[2024-11-03 12:32:49,138 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:32:49,139 INFO  L225             Difference]: With dead ends: 236
[2024-11-03 12:32:49,139 INFO  L226             Difference]: Without dead ends: 169
[2024-11-03 12:32:49,140 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 260 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=115, Invalid=191, Unknown=0, NotChecked=0, Total=306
[2024-11-03 12:32:49,141 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 360 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 180 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.5s IncrementalHoareTripleChecker+Time
[2024-11-03 12:32:49,141 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 300 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 242 Invalid, 12 Unknown, 0 Unchecked, 52.5s Time]
[2024-11-03 12:32:49,142 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 169 states.
[2024-11-03 12:32:49,175 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 117.
[2024-11-03 12:32:49,175 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 117 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 83 states have internal predecessors, (108), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31)
[2024-11-03 12:32:49,176 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 170 transitions.
[2024-11-03 12:32:49,177 INFO  L78                 Accepts]: Start accepts. Automaton has 117 states and 170 transitions. Word has length 135
[2024-11-03 12:32:49,177 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:32:49,177 INFO  L471      AbstractCegarLoop]: Abstraction has 117 states and 170 transitions.
[2024-11-03 12:32:49,177 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29)
[2024-11-03 12:32:49,177 INFO  L276                IsEmpty]: Start isEmpty. Operand 117 states and 170 transitions.
[2024-11-03 12:32:49,179 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2024-11-03 12:32:49,179 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:32:49,179 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:49,190 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0
[2024-11-03 12:32:49,382 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:32:49,383 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:32:49,383 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:32:49,383 INFO  L85        PathProgramCache]: Analyzing trace with hash 280216531, now seen corresponding path program 1 times
[2024-11-03 12:32:49,383 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:32:49,383 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525358368]
[2024-11-03 12:32:49,383 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:32:49,384 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:32:49,384 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:32:49,387 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:32:49,388 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:32:49,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:32:49,443 INFO  L255         TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 12:32:49,446 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:32:52,663 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 12:32:52,663 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:32:54,955 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 12:32:54,955 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:32:54,955 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525358368]
[2024-11-03 12:32:54,955 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1525358368] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:32:54,955 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:32:54,955 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4
[2024-11-03 12:32:54,956 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149677762]
[2024-11-03 12:32:54,956 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:32:54,956 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 12:32:54,956 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:32:54,957 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 12:32:54,957 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:32:54,957 INFO  L87              Difference]: Start difference. First operand 117 states and 170 transitions. Second operand  has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 12:32:59,625 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 []
[2024-11-03 12:33:03,637 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:33:07,643 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:33:08,305 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:33:08,306 INFO  L93              Difference]: Finished difference Result 282 states and 403 transitions.
[2024-11-03 12:33:08,306 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 12:33:08,307 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 136
[2024-11-03 12:33:08,310 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:33:08,311 INFO  L225             Difference]: With dead ends: 282
[2024-11-03 12:33:08,311 INFO  L226             Difference]: Without dead ends: 168
[2024-11-03 12:33:08,318 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:33:08,318 INFO  L432           NwaCegarLoop]: 116 mSDtfsCounter, 81 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time
[2024-11-03 12:33:08,318 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 172 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time]
[2024-11-03 12:33:08,319 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 168 states.
[2024-11-03 12:33:08,339 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 76.
[2024-11-03 12:33:08,340 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 52 states have internal predecessors, (63), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 12:33:08,346 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 103 transitions.
[2024-11-03 12:33:08,346 INFO  L78                 Accepts]: Start accepts. Automaton has 76 states and 103 transitions. Word has length 136
[2024-11-03 12:33:08,346 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:33:08,346 INFO  L471      AbstractCegarLoop]: Abstraction has 76 states and 103 transitions.
[2024-11-03 12:33:08,346 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 12:33:08,347 INFO  L276                IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions.
[2024-11-03 12:33:08,348 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2024-11-03 12:33:08,348 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:33:08,348 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:08,352 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 12:33:08,548 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:33:08,549 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:33:08,549 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:33:08,549 INFO  L85        PathProgramCache]: Analyzing trace with hash 1908803233, now seen corresponding path program 1 times
[2024-11-03 12:33:08,549 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:33:08,549 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375610514]
[2024-11-03 12:33:08,549 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:33:08,550 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:33:08,550 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:33:08,551 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:33:08,552 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:33:08,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:33:08,635 INFO  L255         TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-03 12:33:08,638 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:33:18,331 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 267 proven. 45 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked.
[2024-11-03 12:33:18,332 INFO  L311         TraceCheckSpWp]: Computing backward predicates...