/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-79.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 01:58:22,214 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 01:58:22,281 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 01:58:22,285 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 01:58:22,286 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 01:58:22,306 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 01:58:22,307 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 01:58:22,307 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 01:58:22,308 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 01:58:22,308 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 01:58:22,308 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 01:58:22,309 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 01:58:22,309 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 01:58:22,310 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 01:58:22,310 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 01:58:22,310 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 01:58:22,311 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 01:58:22,311 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 01:58:22,311 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 01:58:22,312 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 01:58:22,312 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 01:58:22,315 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 01:58:22,315 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 01:58:22,316 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 01:58:22,316 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 01:58:22,316 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 01:58:22,317 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 01:58:22,317 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 01:58:22,317 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 01:58:22,317 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 01:58:22,318 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 01:58:22,321 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 01:58:22,321 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 01:58:22,321 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 01:58:22,321 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:58:22,322 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 01:58:22,322 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 01:58:22,322 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 01:58:22,322 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 01:58:22,322 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:22,323 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 01:58:22,323 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 01:58:22,323 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 01:58:22,323 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 01:58:22,323 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:22,548 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 01:58:22,572 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 01:58:22,574 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 01:58:22,575 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 01:58:22,575 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 01:58:22,576 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-79.i
[2024-11-03 01:58:24,036 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 01:58:24,216 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 01:58:24,217 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-79.i
[2024-11-03 01:58:24,225 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd66d1a1/4a9895a3233249d2bab4636eca7d98aa/FLAGb0b4c8f94
[2024-11-03 01:58:24,240 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd66d1a1/4a9895a3233249d2bab4636eca7d98aa
[2024-11-03 01:58:24,243 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 01:58:24,244 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 01:58:24,246 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 01:58:24,246 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 01:58:24,250 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 01:58:24,251 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,252 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a862d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24, skipping insertion in model container
[2024-11-03 01:58:24,252 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,279 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 01:58:24,430 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_amount50_file-79.i[915,928]
[2024-11-03 01:58:24,498 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:58:24,511 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 01:58:24,520 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_amount50_file-79.i[915,928]
[2024-11-03 01:58:24,553 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 01:58:24,570 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 01:58:24,570 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24 WrapperNode
[2024-11-03 01:58:24,570 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 01:58:24,572 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 01:58:24,572 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 01:58:24,572 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 01:58:24,577 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,588 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,618 INFO  L138                Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 163
[2024-11-03 01:58:24,619 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 01:58:24,619 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 01:58:24,619 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 01:58:24,620 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 01:58:24,633 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,633 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,642 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,669 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-03 01:58:24,669 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,669 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,678 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,682 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,684 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,686 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,689 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 01:58:24,690 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 01:58:24,690 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 01:58:24,690 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 01:58:24,691 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (1/1) ...
[2024-11-03 01:58:24,696 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 01:58:24,715 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 01:58:24,728 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-03 01:58:24,730 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-03 01:58:24,750 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 01:58:24,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 01:58:24,751 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 01:58:24,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 01:58:24,751 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 01:58:24,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 01:58:24,816 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 01:58:24,818 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 01:58:32,914 INFO  L?                        ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-03 01:58:32,915 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 01:58:32,927 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 01:58:32,927 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 01:58:32,929 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:58:32 BoogieIcfgContainer
[2024-11-03 01:58:32,929 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 01:58:32,932 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 01:58:32,932 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 01:58:32,935 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 01:58:32,935 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:58:24" (1/3) ...
[2024-11-03 01:58:32,936 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f1f860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:58:32, skipping insertion in model container
[2024-11-03 01:58:32,936 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:58:24" (2/3) ...
[2024-11-03 01:58:32,936 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f1f860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:58:32, skipping insertion in model container
[2024-11-03 01:58:32,936 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:58:32" (3/3) ...
[2024-11-03 01:58:32,941 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-79.i
[2024-11-03 01:58:32,953 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 01:58:32,953 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 01:58:33,003 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 01:58:33,009 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;@5d54e78f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 01:58:33,009 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 01:58:33,014 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 72 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 45 states have internal predecessors, (59), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2024-11-03 01:58:33,028 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2024-11-03 01:58:33,029 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:58:33,031 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:58:33,031 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:58:33,037 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:58:33,037 INFO  L85        PathProgramCache]: Analyzing trace with hash 1617438631, now seen corresponding path program 1 times
[2024-11-03 01:58:33,045 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:58:33,046 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031270315]
[2024-11-03 01:58:33,048 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:58:33,050 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:33,050 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:58:33,053 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:58:33,056 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 01:58:33,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:58:33,678 INFO  L255         TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 01:58:33,692 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:58:33,750 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked.
[2024-11-03 01:58:33,750 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:58:34,155 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked.
[2024-11-03 01:58:34,156 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:58:34,157 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031270315]
[2024-11-03 01:58:34,157 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1031270315] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:58:34,157 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:58:34,157 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 01:58:34,159 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054355712]
[2024-11-03 01:58:34,160 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:58:34,164 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 01:58:34,164 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:58:34,181 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 01:58:34,182 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:58:34,184 INFO  L87              Difference]: Start difference. First operand  has 72 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 45 states have internal predecessors, (59), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand  has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25)
[2024-11-03 01:58:34,207 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:58:34,208 INFO  L93              Difference]: Finished difference Result 137 states and 237 transitions.
[2024-11-03 01:58:34,208 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 01:58:34,209 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158
[2024-11-03 01:58:34,209 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:58:34,215 INFO  L225             Difference]: With dead ends: 137
[2024-11-03 01:58:34,215 INFO  L226             Difference]: Without dead ends: 68
[2024-11-03 01:58:34,217 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 01:58:34,220 INFO  L432           NwaCegarLoop]: 102 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, 102 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:58:34,221 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 01:58:34,233 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2024-11-03 01:58:34,251 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2024-11-03 01:58:34,253 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2024-11-03 01:58:34,255 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 102 transitions.
[2024-11-03 01:58:34,256 INFO  L78                 Accepts]: Start accepts. Automaton has 68 states and 102 transitions. Word has length 158
[2024-11-03 01:58:34,256 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:58:34,257 INFO  L471      AbstractCegarLoop]: Abstraction has 68 states and 102 transitions.
[2024-11-03 01:58:34,257 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25)
[2024-11-03 01:58:34,257 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 102 transitions.
[2024-11-03 01:58:34,260 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2024-11-03 01:58:34,260 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:58:34,261 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:58:34,268 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0
[2024-11-03 01:58:34,461 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:34,462 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:58:34,463 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:58:34,463 INFO  L85        PathProgramCache]: Analyzing trace with hash -1590099047, now seen corresponding path program 1 times
[2024-11-03 01:58:34,463 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:58:34,463 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391538578]
[2024-11-03 01:58:34,463 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:58:34,464 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:34,464 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:58:34,466 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:58:34,467 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 01:58:34,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:58:35,003 INFO  L255         TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 01:58:35,010 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:58:36,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2024-11-03 01:58:36,070 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:58:36,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2024-11-03 01:58:36,681 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:58:36,681 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391538578]
[2024-11-03 01:58:36,681 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1391538578] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:58:36,681 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:58:36,682 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4
[2024-11-03 01:58:36,682 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302560469]
[2024-11-03 01:58:36,682 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:58:36,684 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 01:58:36,684 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:58:36,685 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 01:58:36,685 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 01:58:36,686 INFO  L87              Difference]: Start difference. First operand 68 states and 102 transitions. Second operand  has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2024-11-03 01:58:40,860 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:58:41,745 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:58:41,745 INFO  L93              Difference]: Finished difference Result 262 states and 397 transitions.
[2024-11-03 01:58:41,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 01:58:41,746 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 158
[2024-11-03 01:58:41,747 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:58:41,754 INFO  L225             Difference]: With dead ends: 262
[2024-11-03 01:58:41,754 INFO  L226             Difference]: Without dead ends: 197
[2024-11-03 01:58:41,755 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 01:58:41,758 INFO  L432           NwaCegarLoop]: 98 mSDtfsCounter, 90 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:58:41,759 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 232 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time]
[2024-11-03 01:58:41,760 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 197 states.
[2024-11-03 01:58:41,796 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 130.
[2024-11-03 01:58:41,796 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 130 states, 77 states have (on average 1.2467532467532467) internal successors, (96), 77 states have internal predecessors, (96), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2024-11-03 01:58:41,799 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 196 transitions.
[2024-11-03 01:58:41,799 INFO  L78                 Accepts]: Start accepts. Automaton has 130 states and 196 transitions. Word has length 158
[2024-11-03 01:58:41,800 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:58:41,800 INFO  L471      AbstractCegarLoop]: Abstraction has 130 states and 196 transitions.
[2024-11-03 01:58:41,801 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2024-11-03 01:58:41,801 INFO  L276                IsEmpty]: Start isEmpty. Operand 130 states and 196 transitions.
[2024-11-03 01:58:41,803 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2024-11-03 01:58:41,803 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:58:41,803 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:58:41,812 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 01:58:42,004 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:42,005 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:58:42,005 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:58:42,005 INFO  L85        PathProgramCache]: Analyzing trace with hash -858637665, now seen corresponding path program 1 times
[2024-11-03 01:58:42,005 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:58:42,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500006832]
[2024-11-03 01:58:42,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:58:42,006 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:58:42,006 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:58:42,007 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:58:42,008 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 01:58:43,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:58:43,204 INFO  L255         TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 01:58:43,210 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:58:44,327 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2024-11-03 01:58:44,328 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 01:58:45,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2024-11-03 01:58:45,025 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 01:58:45,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500006832]
[2024-11-03 01:58:45,026 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1500006832] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 01:58:45,026 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 01:58:45,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 01:58:45,026 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852138539]
[2024-11-03 01:58:45,027 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 01:58:45,027 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 01:58:45,028 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 01:58:45,028 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 01:58:45,029 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-03 01:58:45,029 INFO  L87              Difference]: Start difference. First operand 130 states and 196 transitions. Second operand  has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2024-11-03 01:58:49,902 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:58:53,909 WARN  L539   Checker$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 01:58:56,322 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:58:59,792 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:59:04,181 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:59:07,207 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 01:59:07,293 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 01:59:07,293 INFO  L93              Difference]: Finished difference Result 376 states and 555 transitions.
[2024-11-03 01:59:07,294 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-03 01:59:07,295 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 159
[2024-11-03 01:59:07,297 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 01:59:07,300 INFO  L225             Difference]: With dead ends: 376
[2024-11-03 01:59:07,300 INFO  L226             Difference]: Without dead ends: 249
[2024-11-03 01:59:07,303 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2024-11-03 01:59:07,304 INFO  L432           NwaCegarLoop]: 95 mSDtfsCounter, 222 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 130 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time
[2024-11-03 01:59:07,304 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 575 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 248 Invalid, 2 Unknown, 0 Unchecked, 22.0s Time]
[2024-11-03 01:59:07,305 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 249 states.
[2024-11-03 01:59:07,343 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 130.
[2024-11-03 01:59:07,343 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 130 states, 77 states have (on average 1.2337662337662338) internal successors, (95), 77 states have internal predecessors, (95), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2024-11-03 01:59:07,344 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 195 transitions.
[2024-11-03 01:59:07,345 INFO  L78                 Accepts]: Start accepts. Automaton has 130 states and 195 transitions. Word has length 159
[2024-11-03 01:59:07,345 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 01:59:07,346 INFO  L471      AbstractCegarLoop]: Abstraction has 130 states and 195 transitions.
[2024-11-03 01:59:07,346 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2024-11-03 01:59:07,346 INFO  L276                IsEmpty]: Start isEmpty. Operand 130 states and 195 transitions.
[2024-11-03 01:59:07,350 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2024-11-03 01:59:07,350 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 01:59:07,351 INFO  L215           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 01:59:07,367 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 01:59:07,551 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 01:59:07,552 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 01:59:07,552 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 01:59:07,552 INFO  L85        PathProgramCache]: Analyzing trace with hash -2110470832, now seen corresponding path program 1 times
[2024-11-03 01:59:07,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 01:59:07,553 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2501616]
[2024-11-03 01:59:07,553 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 01:59:07,553 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 01:59:07,553 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 01:59:07,555 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 01:59:07,556 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 01:59:08,774 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 01:59:08,797 INFO  L255         TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-03 01:59:08,804 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 01:59:54,804 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 672 proven. 135 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked.
[2024-11-03 01:59:54,805 INFO  L311         TraceCheckSpWp]: Computing backward predicates...