/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_floatingpointinfluence_no-floats_file-14.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 00:42:22,332 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 00:42:22,421 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 00:42:22,427 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 00:42:22,428 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 00:42:22,456 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 00:42:22,457 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 00:42:22,457 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 00:42:22,458 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 00:42:22,458 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 00:42:22,459 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 00:42:22,459 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 00:42:22,460 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 00:42:22,460 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 00:42:22,460 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 00:42:22,461 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 00:42:22,463 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 00:42:22,466 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 00:42:22,466 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 00:42:22,467 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 00:42:22,467 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 00:42:22,467 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 00:42:22,468 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 00:42:22,468 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 00:42:22,468 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 00:42:22,469 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 00:42:22,469 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 00:42:22,469 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 00:42:22,469 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 00:42:22,470 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 00:42:22,470 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 00:42:22,470 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 00:42:22,471 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 00:42:22,471 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 00:42:22,471 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:42:22,471 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 00:42:22,472 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 00:42:22,472 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 00:42:22,472 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 00:42:22,472 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 00:42:22,472 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 00:42:22,473 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 00:42:22,473 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 00:42:22,473 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 00:42:22,473 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 00:42:22,756 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 00:42:22,781 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 00:42:22,785 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 00:42:22,786 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 00:42:22,787 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 00:42:22,788 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-14.i
[2024-11-03 00:42:24,402 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 00:42:24,626 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 00:42:24,627 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-14.i
[2024-11-03 00:42:24,639 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722a6b9c8/6b42f5cd49ff482695ccdb8d24523ea5/FLAG5e54ba1e8
[2024-11-03 00:42:24,976 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722a6b9c8/6b42f5cd49ff482695ccdb8d24523ea5
[2024-11-03 00:42:24,978 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 00:42:24,979 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 00:42:24,981 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 00:42:24,981 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 00:42:24,988 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 00:42:24,989 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:42:24" (1/1) ...
[2024-11-03 00:42:24,990 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f683d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:24, skipping insertion in model container
[2024-11-03 00:42:24,990 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:42:24" (1/1) ...
[2024-11-03 00:42:25,017 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 00:42:25,185 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_floatingpointinfluence_no-floats_file-14.i[916,929]
[2024-11-03 00:42:25,242 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:42:25,257 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 00:42:25,271 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_floatingpointinfluence_no-floats_file-14.i[916,929]
[2024-11-03 00:42:25,297 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 00:42:25,317 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 00:42:25,317 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25 WrapperNode
[2024-11-03 00:42:25,317 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 00:42:25,319 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 00:42:25,319 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 00:42:25,319 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 00:42:25,325 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,334 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,359 INFO  L138                Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 127
[2024-11-03 00:42:25,360 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 00:42:25,361 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 00:42:25,361 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 00:42:25,361 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 00:42:25,374 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,374 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,378 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,395 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-03 00:42:25,395 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,396 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,405 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,409 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,411 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,412 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,415 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 00:42:25,417 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 00:42:25,417 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 00:42:25,417 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 00:42:25,418 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (1/1) ...
[2024-11-03 00:42:25,423 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 00:42:25,441 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 00:42:25,457 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-03 00:42:25,461 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-03 00:42:25,485 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 00:42:25,485 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 00:42:25,485 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 00:42:25,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 00:42:25,486 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 00:42:25,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 00:42:25,590 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 00:42:25,592 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 00:42:32,276 INFO  L?                        ?]: Removed 10 outVars from TransFormulas that were not future-live.
[2024-11-03 00:42:32,277 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 00:42:32,292 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 00:42:32,292 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 00:42:32,293 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:42:32 BoogieIcfgContainer
[2024-11-03 00:42:32,293 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 00:42:32,295 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 00:42:32,295 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 00:42:32,298 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 00:42:32,298 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:42:24" (1/3) ...
[2024-11-03 00:42:32,299 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9e7404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:42:32, skipping insertion in model container
[2024-11-03 00:42:32,299 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:25" (2/3) ...
[2024-11-03 00:42:32,299 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9e7404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:42:32, skipping insertion in model container
[2024-11-03 00:42:32,299 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:42:32" (3/3) ...
[2024-11-03 00:42:32,301 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-14.i
[2024-11-03 00:42:32,318 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 00:42:32,318 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 00:42:32,380 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 00:42:32,387 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;@dd29a8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 00:42:32,387 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 00:42:32,392 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 62 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 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 00:42:32,404 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2024-11-03 00:42:32,405 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:42:32,406 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]
[2024-11-03 00:42:32,406 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:42:32,413 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:42:32,414 INFO  L85        PathProgramCache]: Analyzing trace with hash -1824167532, now seen corresponding path program 1 times
[2024-11-03 00:42:32,422 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:42:32,423 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290484449]
[2024-11-03 00:42:32,423 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:42:32,425 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:42:32,426 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:42:32,427 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:42:32,429 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 00:42:32,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:42:32,664 INFO  L255         TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 00:42:32,677 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:42:32,735 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 00:42:32,735 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:42:33,256 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 00:42:33,258 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:42:33,258 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290484449]
[2024-11-03 00:42:33,259 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1290484449] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:42:33,259 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:42:33,259 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 00:42:33,261 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631067522]
[2024-11-03 00:42:33,262 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:42:33,267 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 00:42:33,268 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:42:33,294 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 00:42:33,295 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 00:42:33,297 INFO  L87              Difference]: Start difference. First operand  has 62 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 00:42:33,326 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:42:33,327 INFO  L93              Difference]: Finished difference Result 117 states and 207 transitions.
[2024-11-03 00:42:33,328 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 00:42:33,329 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 151
[2024-11-03 00:42:33,330 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:42:33,335 INFO  L225             Difference]: With dead ends: 117
[2024-11-03 00:42:33,336 INFO  L226             Difference]: Without dead ends: 58
[2024-11-03 00:42:33,339 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 00:42:33,343 INFO  L432           NwaCegarLoop]: 87 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, 87 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 00:42:33,344 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 00:42:33,358 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-11-03 00:42:33,380 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58.
[2024-11-03 00:42:33,382 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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 00:42:33,384 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 87 transitions.
[2024-11-03 00:42:33,386 INFO  L78                 Accepts]: Start accepts. Automaton has 58 states and 87 transitions. Word has length 151
[2024-11-03 00:42:33,387 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:42:33,387 INFO  L471      AbstractCegarLoop]: Abstraction has 58 states and 87 transitions.
[2024-11-03 00:42:33,387 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 00:42:33,388 INFO  L276                IsEmpty]: Start isEmpty. Operand 58 states and 87 transitions.
[2024-11-03 00:42:33,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2024-11-03 00:42:33,393 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:42:33,393 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]
[2024-11-03 00:42:33,399 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0
[2024-11-03 00:42:33,594 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 00:42:33,595 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:42:33,596 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:42:33,596 INFO  L85        PathProgramCache]: Analyzing trace with hash -1267294382, now seen corresponding path program 1 times
[2024-11-03 00:42:33,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:42:33,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296684462]
[2024-11-03 00:42:33,597 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:42:33,597 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:42:33,597 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:42:33,601 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:42:33,604 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 00:42:33,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:42:33,829 INFO  L255         TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 00:42:33,840 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:42:35,158 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 00:42:35,159 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:42:35,842 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 00:42:35,843 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:42:35,843 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296684462]
[2024-11-03 00:42:35,843 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [296684462] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 00:42:35,843 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 00:42:35,844 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4
[2024-11-03 00:42:35,844 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015022817]
[2024-11-03 00:42:35,844 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 00:42:35,846 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 00:42:35,846 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:42:35,848 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 00:42:35,848 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-03 00:42:35,849 INFO  L87              Difference]: Start difference. First operand 58 states and 87 transitions. Second operand  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2024-11-03 00:42:37,638 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:42:39,385 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:42:39,386 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:42:39,386 INFO  L93              Difference]: Finished difference Result 172 states and 262 transitions.
[2024-11-03 00:42:39,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 00:42:39,415 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 151
[2024-11-03 00:42:39,417 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:42:39,419 INFO  L225             Difference]: With dead ends: 172
[2024-11-03 00:42:39,420 INFO  L226             Difference]: Without dead ends: 117
[2024-11-03 00:42:39,421 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 00:42:39,422 INFO  L432           NwaCegarLoop]: 84 mSDtfsCounter, 46 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2024-11-03 00:42:39,422 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 245 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2024-11-03 00:42:39,423 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 117 states.
[2024-11-03 00:42:39,462 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 102.
[2024-11-03 00:42:39,463 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 49 states have internal predecessors, (55), 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 00:42:39,466 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 155 transitions.
[2024-11-03 00:42:39,467 INFO  L78                 Accepts]: Start accepts. Automaton has 102 states and 155 transitions. Word has length 151
[2024-11-03 00:42:39,472 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:42:39,472 INFO  L471      AbstractCegarLoop]: Abstraction has 102 states and 155 transitions.
[2024-11-03 00:42:39,472 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50)
[2024-11-03 00:42:39,472 INFO  L276                IsEmpty]: Start isEmpty. Operand 102 states and 155 transitions.
[2024-11-03 00:42:39,474 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2024-11-03 00:42:39,475 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:42:39,475 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]
[2024-11-03 00:42:39,482 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 00:42:39,680 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 00:42:39,681 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:42:39,681 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:42:39,682 INFO  L85        PathProgramCache]: Analyzing trace with hash -587236012, now seen corresponding path program 1 times
[2024-11-03 00:42:39,682 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:42:39,682 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379849433]
[2024-11-03 00:42:39,682 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:42:39,682 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:42:39,683 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:42:39,684 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:42:39,685 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 00:42:40,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:42:40,075 INFO  L255         TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-03 00:42:40,082 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 00:42:41,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 620 proven. 78 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked.
[2024-11-03 00:42:41,144 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 00:42:41,822 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 30 proven. 42 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked.
[2024-11-03 00:42:41,823 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 00:42:41,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379849433]
[2024-11-03 00:42:41,824 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [379849433] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 00:42:41,824 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 00:42:41,824 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 11
[2024-11-03 00:42:41,824 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729947258]
[2024-11-03 00:42:41,824 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 00:42:41,825 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-03 00:42:41,827 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 00:42:41,828 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-03 00:42:41,828 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110
[2024-11-03 00:42:41,829 INFO  L87              Difference]: Start difference. First operand 102 states and 155 transitions. Second operand  has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (39), 3 states have call predecessors, (39), 5 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40)
[2024-11-03 00:42:44,439 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 00:42:44,606 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 00:42:44,609 INFO  L93              Difference]: Finished difference Result 177 states and 255 transitions.
[2024-11-03 00:42:44,647 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-03 00:42:44,648 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (39), 3 states have call predecessors, (39), 5 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 151
[2024-11-03 00:42:44,649 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 00:42:44,651 INFO  L225             Difference]: With dead ends: 177
[2024-11-03 00:42:44,651 INFO  L226             Difference]: Without dead ends: 122
[2024-11-03 00:42:44,655 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=254, Unknown=0, NotChecked=0, Total=380
[2024-11-03 00:42:44,656 INFO  L432           NwaCegarLoop]: 53 mSDtfsCounter, 105 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-03 00:42:44,657 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 163 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-03 00:42:44,658 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 122 states.
[2024-11-03 00:42:44,691 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 118.
[2024-11-03 00:42:44,692 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 118 states, 61 states have (on average 1.0819672131147542) internal successors, (66), 61 states have internal predecessors, (66), 50 states have call successors, (50), 6 states have call predecessors, (50), 6 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2024-11-03 00:42:44,697 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 166 transitions.
[2024-11-03 00:42:44,698 INFO  L78                 Accepts]: Start accepts. Automaton has 118 states and 166 transitions. Word has length 151
[2024-11-03 00:42:44,699 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 00:42:44,699 INFO  L471      AbstractCegarLoop]: Abstraction has 118 states and 166 transitions.
[2024-11-03 00:42:44,699 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (39), 3 states have call predecessors, (39), 5 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40)
[2024-11-03 00:42:44,699 INFO  L276                IsEmpty]: Start isEmpty. Operand 118 states and 166 transitions.
[2024-11-03 00:42:44,705 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2024-11-03 00:42:44,705 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 00:42:44,706 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]
[2024-11-03 00:42:44,715 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 00:42:44,906 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 00:42:44,907 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 00:42:44,907 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 00:42:44,907 INFO  L85        PathProgramCache]: Analyzing trace with hash -585388970, now seen corresponding path program 1 times
[2024-11-03 00:42:44,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 00:42:44,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442760260]
[2024-11-03 00:42:44,908 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 00:42:44,908 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 00:42:44,908 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 00:42:44,910 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 00:42:44,911 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 00:42:45,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 00:42:45,398 INFO  L255         TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 27 conjuncts are in the unsatisfiable core
[2024-11-03 00:42:45,404 INFO  L278         TraceCheckSpWp]: Computing forward predicates...