/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-32.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:31:03,058 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:31:03,132 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 12:31:03,137 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:31:03,137 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:31:03,172 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:31:03,173 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:31:03,173 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:31:03,174 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:31:03,178 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:31:03,178 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:31:03,179 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:31:03,179 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:31:03,180 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:31:03,180 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:31:03,180 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:31:03,181 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:31:03,181 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:31:03,184 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:31:03,186 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:31:03,186 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:31:03,189 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:31:03,189 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:31:03,189 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:31:03,190 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:31:03,190 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:31:03,190 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:31:03,190 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:31:03,191 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:31:03,191 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:31:03,191 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:31:03,191 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:31:03,192 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:31:03,195 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:31:03,196 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:31:03,196 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:31:03,197 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:31:03,197 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:31:03,197 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:31:03,197 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:31:03,197 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:31:03,198 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:31:03,198 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:31:03,198 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:31:03,199 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:31:03,458 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:31:03,490 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:31:03,493 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:31:03,494 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:31:03,495 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:31:03,496 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-32.i
[2024-11-03 12:31:05,223 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:31:05,439 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:31:05,440 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-32.i
[2024-11-03 12:31:05,458 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b597b1bf6/f0482a94dc884b4ebd2570e1656c4d5a/FLAG15c1482c7
[2024-11-03 12:31:05,800 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b597b1bf6/f0482a94dc884b4ebd2570e1656c4d5a
[2024-11-03 12:31:05,804 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:31:05,806 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:31:05,807 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:31:05,808 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:31:05,815 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:31:05,816 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:31:05" (1/1) ...
[2024-11-03 12:31:05,817 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b871a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:05, skipping insertion in model container
[2024-11-03 12:31:05,817 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:31:05" (1/1) ...
[2024-11-03 12:31:05,865 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:31:06,069 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-32.i[916,929]
[2024-11-03 12:31:06,157 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:31:06,184 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:31:06,196 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-32.i[916,929]
[2024-11-03 12:31:06,255 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:31:06,301 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:31:06,301 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06 WrapperNode
[2024-11-03 12:31:06,302 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:31:06,303 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:31:06,303 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:31:06,303 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:31:06,310 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,325 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,359 INFO  L138                Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213
[2024-11-03 12:31:06,360 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:31:06,360 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:31:06,361 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:31:06,361 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:31:06,374 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,374 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,381 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,400 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 12:31:06,401 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,401 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,416 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,420 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,428 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,430 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,438 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:31:06,440 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:31:06,440 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:31:06,440 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:31:06,441 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (1/1) ...
[2024-11-03 12:31:06,449 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:31:06,465 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:31:06,487 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 12:31:06,495 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 12:31:06,529 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:31:06,529 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:31:06,530 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:31:06,530 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:31:06,530 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:31:06,532 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:31:06,681 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:31:06,684 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:31:07,662 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-03 12:31:07,662 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:31:07,684 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:31:07,685 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:31:07,685 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:31:07 BoogieIcfgContainer
[2024-11-03 12:31:07,685 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:31:07,687 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:31:07,688 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:31:07,690 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:31:07,691 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:31:05" (1/3) ...
[2024-11-03 12:31:07,691 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fbee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:31:07, skipping insertion in model container
[2024-11-03 12:31:07,692 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:31:06" (2/3) ...
[2024-11-03 12:31:07,692 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fbee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:31:07, skipping insertion in model container
[2024-11-03 12:31:07,692 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:31:07" (3/3) ...
[2024-11-03 12:31:07,694 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-32.i
[2024-11-03 12:31:07,712 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:31:07,713 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:31:07,783 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:31:07,790 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;@34a41359, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:31:07,791 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:31:07,796 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 96 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 59 states have internal predecessors, (83), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-11-03 12:31:07,811 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2024-11-03 12:31:07,811 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:31:07,812 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:07,812 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:31:07,817 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:31:07,818 INFO  L85        PathProgramCache]: Analyzing trace with hash 870512893, now seen corresponding path program 1 times
[2024-11-03 12:31:07,825 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:31:07,825 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045252929]
[2024-11-03 12:31:07,826 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:31:07,828 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:31:07,828 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:07,830 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 12:31:07,832 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:31:08,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:31:08,067 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:31:08,090 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:31:08,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked.
[2024-11-03 12:31:08,173 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:31:08,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked.
[2024-11-03 12:31:08,585 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:31:08,585 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045252929]
[2024-11-03 12:31:08,586 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2045252929] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:31:08,586 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:31:08,586 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:31:08,588 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618929218]
[2024-11-03 12:31:08,589 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:31:08,595 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:31:08,595 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:31:08,626 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:31:08,626 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:31:08,629 INFO  L87              Difference]: Start difference. First operand  has 96 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 59 states have internal predecessors, (83), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35)
[2024-11-03 12:31:08,666 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:31:08,666 INFO  L93              Difference]: Finished difference Result 185 states and 335 transitions.
[2024-11-03 12:31:08,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:31:08,669 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) Word has length 217
[2024-11-03 12:31:08,670 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:31:08,684 INFO  L225             Difference]: With dead ends: 185
[2024-11-03 12:31:08,685 INFO  L226             Difference]: Without dead ends: 92
[2024-11-03 12:31:08,691 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 432 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 12:31:08,699 INFO  L432           NwaCegarLoop]: 146 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, 146 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 12:31:08,700 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:31:08,717 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-11-03 12:31:08,749 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2024-11-03 12:31:08,751 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 55 states have internal predecessors, (76), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-11-03 12:31:08,755 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 146 transitions.
[2024-11-03 12:31:08,761 INFO  L78                 Accepts]: Start accepts. Automaton has 92 states and 146 transitions. Word has length 217
[2024-11-03 12:31:08,762 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:31:08,762 INFO  L471      AbstractCegarLoop]: Abstraction has 92 states and 146 transitions.
[2024-11-03 12:31:08,762 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35)
[2024-11-03 12:31:08,762 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 146 transitions.
[2024-11-03 12:31:08,767 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2024-11-03 12:31:08,768 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:31:08,768 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:08,771 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 12:31:08,968 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:08,969 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:31:08,970 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:31:08,970 INFO  L85        PathProgramCache]: Analyzing trace with hash 192119231, now seen corresponding path program 1 times
[2024-11-03 12:31:08,971 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:31:08,971 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577234559]
[2024-11-03 12:31:08,971 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:31:08,971 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:31:08,972 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:08,975 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 12:31:08,976 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:31:09,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:31:09,162 INFO  L255         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 12:31:09,177 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:31:10,073 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 412 proven. 93 refuted. 0 times theorem prover too weak. 1875 trivial. 0 not checked.
[2024-11-03 12:31:10,075 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:31:10,786 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 9 proven. 93 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked.
[2024-11-03 12:31:10,786 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:31:10,786 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577234559]
[2024-11-03 12:31:10,787 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1577234559] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:31:10,787 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:31:10,787 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 12:31:10,787 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241271649]
[2024-11-03 12:31:10,787 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:31:10,789 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 12:31:10,790 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:31:10,791 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 12:31:10,791 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 12:31:10,791 INFO  L87              Difference]: Start difference. First operand 92 states and 146 transitions. Second operand  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-03 12:31:11,755 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:31:11,755 INFO  L93              Difference]: Finished difference Result 189 states and 296 transitions.
[2024-11-03 12:31:11,774 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 12:31:11,775 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 217
[2024-11-03 12:31:11,777 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:31:11,780 INFO  L225             Difference]: With dead ends: 189
[2024-11-03 12:31:11,780 INFO  L226             Difference]: Without dead ends: 100
[2024-11-03 12:31:11,781 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 426 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2024-11-03 12:31:11,782 INFO  L432           NwaCegarLoop]: 105 mSDtfsCounter, 56 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-03 12:31:11,783 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 245 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-03 12:31:11,784 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2024-11-03 12:31:11,810 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96.
[2024-11-03 12:31:11,810 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 96 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 58 states have internal predecessors, (78), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2024-11-03 12:31:11,812 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 148 transitions.
[2024-11-03 12:31:11,812 INFO  L78                 Accepts]: Start accepts. Automaton has 96 states and 148 transitions. Word has length 217
[2024-11-03 12:31:11,813 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:31:11,813 INFO  L471      AbstractCegarLoop]: Abstraction has 96 states and 148 transitions.
[2024-11-03 12:31:11,814 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-03 12:31:11,814 INFO  L276                IsEmpty]: Start isEmpty. Operand 96 states and 148 transitions.
[2024-11-03 12:31:11,817 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2024-11-03 12:31:11,818 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:31:11,818 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:11,835 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:31:12,019 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:12,019 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:31:12,020 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:31:12,020 INFO  L85        PathProgramCache]: Analyzing trace with hash -227089071, now seen corresponding path program 1 times
[2024-11-03 12:31:12,020 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:31:12,021 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978161682]
[2024-11-03 12:31:12,021 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:31:12,021 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:31:12,021 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:12,024 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 12:31:12,025 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:31:12,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:31:12,144 INFO  L255         TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-03 12:31:12,153 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:31:15,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 688 proven. 243 refuted. 0 times theorem prover too weak. 1449 trivial. 0 not checked.
[2024-11-03 12:31:15,304 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:31:16,805 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 45 proven. 252 refuted. 0 times theorem prover too weak. 2083 trivial. 0 not checked.
[2024-11-03 12:31:16,807 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:31:16,807 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978161682]
[2024-11-03 12:31:16,807 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [978161682] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:31:16,808 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:31:16,808 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22
[2024-11-03 12:31:16,808 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950782052]
[2024-11-03 12:31:16,808 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:31:16,809 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-11-03 12:31:16,809 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:31:16,810 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-11-03 12:31:16,810 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462
[2024-11-03 12:31:16,811 INFO  L87              Difference]: Start difference. First operand 96 states and 148 transitions. Second operand  has 22 states, 21 states have (on average 4.428571428571429) internal successors, (93), 21 states have internal predecessors, (93), 5 states have call successors, (64), 4 states have call predecessors, (64), 8 states have return successors, (65), 5 states have call predecessors, (65), 5 states have call successors, (65)
[2024-11-03 12:31:21,384 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:31:21,384 INFO  L93              Difference]: Finished difference Result 392 states and 555 transitions.
[2024-11-03 12:31:21,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. 
[2024-11-03 12:31:21,386 INFO  L78                 Accepts]: Start accepts. Automaton has  has 22 states, 21 states have (on average 4.428571428571429) internal successors, (93), 21 states have internal predecessors, (93), 5 states have call successors, (64), 4 states have call predecessors, (64), 8 states have return successors, (65), 5 states have call predecessors, (65), 5 states have call successors, (65) Word has length 218
[2024-11-03 12:31:21,387 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:31:21,391 INFO  L225             Difference]: With dead ends: 392
[2024-11-03 12:31:21,391 INFO  L226             Difference]: Without dead ends: 299
[2024-11-03 12:31:21,394 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 419 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1136, Invalid=2896, Unknown=0, NotChecked=0, Total=4032
[2024-11-03 12:31:21,395 INFO  L432           NwaCegarLoop]: 171 mSDtfsCounter, 547 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-11-03 12:31:21,396 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 801 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-11-03 12:31:21,399 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 299 states.
[2024-11-03 12:31:21,431 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 166.
[2024-11-03 12:31:21,433 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 166 states, 111 states have (on average 1.3063063063063063) internal successors, (145), 113 states have internal predecessors, (145), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44)
[2024-11-03 12:31:21,435 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 233 transitions.
[2024-11-03 12:31:21,436 INFO  L78                 Accepts]: Start accepts. Automaton has 166 states and 233 transitions. Word has length 218
[2024-11-03 12:31:21,441 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:31:21,441 INFO  L471      AbstractCegarLoop]: Abstraction has 166 states and 233 transitions.
[2024-11-03 12:31:21,441 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 21 states have (on average 4.428571428571429) internal successors, (93), 21 states have internal predecessors, (93), 5 states have call successors, (64), 4 states have call predecessors, (64), 8 states have return successors, (65), 5 states have call predecessors, (65), 5 states have call successors, (65)
[2024-11-03 12:31:21,442 INFO  L276                IsEmpty]: Start isEmpty. Operand 166 states and 233 transitions.
[2024-11-03 12:31:21,445 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2024-11-03 12:31:21,445 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:31:21,445 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:21,457 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 12:31:21,646 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:21,647 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:31:21,648 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:31:21,648 INFO  L85        PathProgramCache]: Analyzing trace with hash 165937939, now seen corresponding path program 1 times
[2024-11-03 12:31:21,648 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:31:21,648 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13170351]
[2024-11-03 12:31:21,648 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:31:21,649 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:31:21,649 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:21,651 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 12:31:21,653 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:31:21,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:31:21,784 INFO  L255         TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-03 12:31:21,791 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:31:26,887 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 1679 proven. 180 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked.
[2024-11-03 12:31:26,888 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:31:27,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 174 proven. 27 refuted. 0 times theorem prover too weak. 2179 trivial. 0 not checked.
[2024-11-03 12:31:27,958 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:31:27,958 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13170351]
[2024-11-03 12:31:27,959 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [13170351] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:31:27,959 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:31:27,959 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 9] total 31
[2024-11-03 12:31:27,959 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146915216]
[2024-11-03 12:31:27,959 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:31:27,960 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 31 states
[2024-11-03 12:31:27,960 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:31:27,961 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants.
[2024-11-03 12:31:27,962 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930
[2024-11-03 12:31:27,962 INFO  L87              Difference]: Start difference. First operand 166 states and 233 transitions. Second operand  has 31 states, 30 states have (on average 4.033333333333333) internal successors, (121), 27 states have internal predecessors, (121), 10 states have call successors, (70), 8 states have call predecessors, (70), 13 states have return successors, (70), 10 states have call predecessors, (70), 10 states have call successors, (70)
[2024-11-03 12:31:37,333 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:31:37,333 INFO  L93              Difference]: Finished difference Result 653 states and 884 transitions.
[2024-11-03 12:31:37,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. 
[2024-11-03 12:31:37,335 INFO  L78                 Accepts]: Start accepts. Automaton has  has 31 states, 30 states have (on average 4.033333333333333) internal successors, (121), 27 states have internal predecessors, (121), 10 states have call successors, (70), 8 states have call predecessors, (70), 13 states have return successors, (70), 10 states have call predecessors, (70), 10 states have call successors, (70) Word has length 218
[2024-11-03 12:31:37,335 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:31:37,341 INFO  L225             Difference]: With dead ends: 653
[2024-11-03 12:31:37,343 INFO  L226             Difference]: Without dead ends: 494
[2024-11-03 12:31:37,346 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1974 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1289, Invalid=4261, Unknown=0, NotChecked=0, Total=5550
[2024-11-03 12:31:37,347 INFO  L432           NwaCegarLoop]: 89 mSDtfsCounter, 658 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2024-11-03 12:31:37,348 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 876 Invalid, 1825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2024-11-03 12:31:37,350 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 494 states.
[2024-11-03 12:31:37,412 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 357.
[2024-11-03 12:31:37,413 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 357 states, 223 states have (on average 1.2242152466367713) internal successors, (273), 224 states have internal predecessors, (273), 105 states have call successors, (105), 28 states have call predecessors, (105), 28 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105)
[2024-11-03 12:31:37,415 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 483 transitions.
[2024-11-03 12:31:37,417 INFO  L78                 Accepts]: Start accepts. Automaton has 357 states and 483 transitions. Word has length 218
[2024-11-03 12:31:37,417 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:31:37,417 INFO  L471      AbstractCegarLoop]: Abstraction has 357 states and 483 transitions.
[2024-11-03 12:31:37,418 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 31 states, 30 states have (on average 4.033333333333333) internal successors, (121), 27 states have internal predecessors, (121), 10 states have call successors, (70), 8 states have call predecessors, (70), 13 states have return successors, (70), 10 states have call predecessors, (70), 10 states have call successors, (70)
[2024-11-03 12:31:37,418 INFO  L276                IsEmpty]: Start isEmpty. Operand 357 states and 483 transitions.
[2024-11-03 12:31:37,420 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 220
[2024-11-03 12:31:37,421 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:31:37,421 INFO  L215           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:37,432 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0
[2024-11-03 12:31:37,625 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:37,626 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:31:37,627 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:31:37,627 INFO  L85        PathProgramCache]: Analyzing trace with hash 613548626, now seen corresponding path program 1 times
[2024-11-03 12:31:37,627 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:31:37,627 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862383109]
[2024-11-03 12:31:37,627 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:31:37,627 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:31:37,627 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:31:37,629 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:31:37,630 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process
[2024-11-03 12:31:37,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:31:37,738 INFO  L255         TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 45 conjuncts are in the unsatisfiable core
[2024-11-03 12:31:37,747 INFO  L278         TraceCheckSpWp]: Computing forward predicates...