/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-29.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:29:26,909 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:29:26,990 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 22:29:26,995 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:29:26,995 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:29:27,021 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:29:27,023 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:29:27,024 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:29:27,024 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:29:27,025 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:29:27,025 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:29:27,026 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:29:27,026 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:29:27,026 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:29:27,027 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:29:27,027 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:29:27,029 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:29:27,031 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:29:27,031 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:29:27,031 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:29:27,032 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:29:27,032 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:29:27,032 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:29:27,032 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:29:27,033 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:29:27,033 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:29:27,033 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:29:27,033 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:29:27,033 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:29:27,034 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:29:27,034 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:29:27,034 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:29:27,034 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:29:27,035 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:29:27,035 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:29:27,037 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:29:27,038 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:29:27,038 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:29:27,038 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:29:27,038 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:29:27,038 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:29:27,039 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:29:27,039 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:29:27,039 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:29:27,039 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:29:27,263 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:29:27,287 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:29:27,290 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:29:27,291 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:29:27,291 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:29:27,293 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-29.i
[2024-11-02 22:29:28,724 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:29:28,925 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:29:28,925 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-29.i
[2024-11-02 22:29:28,937 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f29f0f8/0bcd8673a65e48a4b95e57ac8a932105/FLAGd8c5087ae
[2024-11-02 22:29:28,951 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f29f0f8/0bcd8673a65e48a4b95e57ac8a932105
[2024-11-02 22:29:28,953 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:29:28,954 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:29:28,955 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:29:28,956 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:29:28,960 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:29:28,961 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:29:28" (1/1) ...
[2024-11-02 22:29:28,962 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@516fde56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:28, skipping insertion in model container
[2024-11-02 22:29:28,962 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:29:28" (1/1) ...
[2024-11-02 22:29:28,988 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:29:29,141 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-29.i[915,928]
[2024-11-02 22:29:29,202 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:29:29,216 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:29:29,225 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-29.i[915,928]
[2024-11-02 22:29:29,268 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:29:29,287 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:29:29,288 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29 WrapperNode
[2024-11-02 22:29:29,288 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:29:29,289 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:29:29,289 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:29:29,289 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:29:29,294 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,309 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,339 INFO  L138                Inliner]: procedures = 27, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 152
[2024-11-02 22:29:29,340 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:29:29,344 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:29:29,344 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:29:29,344 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:29:29,355 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,355 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,359 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,381 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-02 22:29:29,381 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,382 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,396 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,402 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,409 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,411 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,417 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:29:29,418 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:29:29,418 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:29:29,418 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:29:29,420 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (1/1) ...
[2024-11-02 22:29:29,429 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:29:29,439 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:29:29,450 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-02 22:29:29,452 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-02 22:29:29,470 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:29:29,470 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:29:29,470 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:29:29,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:29:29,471 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:29:29,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:29:29,539 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:29:29,540 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:29:31,777 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-02 22:29:31,777 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:29:31,792 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:29:31,794 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:29:31,795 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:29:31 BoogieIcfgContainer
[2024-11-02 22:29:31,795 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:29:31,798 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:29:31,798 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:29:31,801 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:29:31,802 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:29:28" (1/3) ...
[2024-11-02 22:29:31,802 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f00da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:29:31, skipping insertion in model container
[2024-11-02 22:29:31,802 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:29:29" (2/3) ...
[2024-11-02 22:29:31,803 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f00da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:29:31, skipping insertion in model container
[2024-11-02 22:29:31,803 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:29:31" (3/3) ...
[2024-11-02 22:29:31,804 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-29.i
[2024-11-02 22:29:31,817 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:29:31,817 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:29:31,870 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:29:31,877 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;@6d81c851, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:29:31,877 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:29:31,882 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 72 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-02 22:29:31,900 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2024-11-02 22:29:31,901 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:29:31,901 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:29:31,902 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:29:31,908 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:29:31,908 INFO  L85        PathProgramCache]: Analyzing trace with hash 731389584, now seen corresponding path program 1 times
[2024-11-02 22:29:31,916 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:29:31,919 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799988260]
[2024-11-02 22:29:31,919 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:29:31,921 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:29:31,922 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:29:31,924 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:29:31,925 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 22:29:32,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:29:32,223 INFO  L255         TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:29:32,239 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:29:32,921 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked.
[2024-11-02 22:29:32,922 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:29:33,273 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked.
[2024-11-02 22:29:33,274 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:29:33,275 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799988260]
[2024-11-02 22:29:33,275 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [799988260] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:29:33,275 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:29:33,275 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3
[2024-11-02 22:29:33,277 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955460794]
[2024-11-02 22:29:33,277 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:29:33,281 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 22:29:33,281 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:29:33,301 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 22:29:33,302 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:29:33,304 INFO  L87              Difference]: Start difference. First operand  has 72 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand  has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-02 22:29:34,035 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:29:34,035 INFO  L93              Difference]: Finished difference Result 202 states and 380 transitions.
[2024-11-02 22:29:34,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 22:29:34,056 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 170
[2024-11-02 22:29:34,057 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:29:34,065 INFO  L225             Difference]: With dead ends: 202
[2024-11-02 22:29:34,066 INFO  L226             Difference]: Without dead ends: 133
[2024-11-02 22:29:34,069 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:29:34,072 INFO  L432           NwaCegarLoop]: 103 mSDtfsCounter, 20 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-02 22:29:34,073 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 201 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-02 22:29:34,085 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 133 states.
[2024-11-02 22:29:34,129 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131.
[2024-11-02 22:29:34,131 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 131 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 72 states have internal predecessors, (93), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2024-11-02 22:29:34,137 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 205 transitions.
[2024-11-02 22:29:34,140 INFO  L78                 Accepts]: Start accepts. Automaton has 131 states and 205 transitions. Word has length 170
[2024-11-02 22:29:34,141 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:29:34,142 INFO  L471      AbstractCegarLoop]: Abstraction has 131 states and 205 transitions.
[2024-11-02 22:29:34,143 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56)
[2024-11-02 22:29:34,143 INFO  L276                IsEmpty]: Start isEmpty. Operand 131 states and 205 transitions.
[2024-11-02 22:29:34,148 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2024-11-02 22:29:34,148 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:29:34,148 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:29:34,176 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-02 22:29:34,353 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:29:34,354 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:29:34,356 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:29:34,356 INFO  L85        PathProgramCache]: Analyzing trace with hash 788647886, now seen corresponding path program 1 times
[2024-11-02 22:29:34,356 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:29:34,357 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918462467]
[2024-11-02 22:29:34,357 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:29:34,357 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:29:34,357 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:29:34,361 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:29:34,362 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 22:29:34,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:29:34,567 INFO  L255         TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:29:34,577 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:29:34,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked.
[2024-11-02 22:29:34,653 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:29:37,068 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked.
[2024-11-02 22:29:37,068 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:29:37,068 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918462467]
[2024-11-02 22:29:37,069 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1918462467] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:29:37,069 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:29:37,069 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-02 22:29:37,069 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073296885]
[2024-11-02 22:29:37,069 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:29:37,071 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 22:29:37,071 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:29:37,072 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 22:29:37,072 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 22:29:37,073 INFO  L87              Difference]: Start difference. First operand 131 states and 205 transitions. Second operand  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28)
[2024-11-02 22:29:39,236 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 22:29:41,497 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 22:29:43,464 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 22:29:45,211 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]
[2024-11-02 22:29:48,177 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:29:48,178 INFO  L93              Difference]: Finished difference Result 513 states and 807 transitions.
[2024-11-02 22:29:48,179 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 22:29:48,179 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 170
[2024-11-02 22:29:48,180 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:29:48,185 INFO  L225             Difference]: With dead ends: 513
[2024-11-02 22:29:48,185 INFO  L226             Difference]: Without dead ends: 385
[2024-11-02 22:29:48,187 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 22:29:48,188 INFO  L432           NwaCegarLoop]: 189 mSDtfsCounter, 208 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time
[2024-11-02 22:29:48,189 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 323 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time]
[2024-11-02 22:29:48,190 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 385 states.
[2024-11-02 22:29:48,284 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 381.
[2024-11-02 22:29:48,285 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 381 states, 206 states have (on average 1.266990291262136) internal successors, (261), 206 states have internal predecessors, (261), 168 states have call successors, (168), 6 states have call predecessors, (168), 6 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168)
[2024-11-02 22:29:48,291 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 597 transitions.
[2024-11-02 22:29:48,292 INFO  L78                 Accepts]: Start accepts. Automaton has 381 states and 597 transitions. Word has length 170
[2024-11-02 22:29:48,296 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:29:48,296 INFO  L471      AbstractCegarLoop]: Abstraction has 381 states and 597 transitions.
[2024-11-02 22:29:48,297 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28)
[2024-11-02 22:29:48,297 INFO  L276                IsEmpty]: Start isEmpty. Operand 381 states and 597 transitions.
[2024-11-02 22:29:48,301 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 171
[2024-11-02 22:29:48,301 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:29:48,301 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:29:48,327 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 22:29:48,502 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:29:48,503 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:29:48,503 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:29:48,503 INFO  L85        PathProgramCache]: Analyzing trace with hash -1731312048, now seen corresponding path program 1 times
[2024-11-02 22:29:48,503 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:29:48,504 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574780427]
[2024-11-02 22:29:48,504 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:29:48,504 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:29:48,504 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:29:48,505 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:29:48,506 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 22:29:48,690 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:29:48,713 INFO  L255         TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 22:29:48,720 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:29:48,915 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 441 proven. 12 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked.
[2024-11-02 22:29:48,916 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:29:49,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 69 proven. 12 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked.
[2024-11-02 22:29:49,610 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:29:49,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574780427]
[2024-11-02 22:29:49,610 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1574780427] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 22:29:49,610 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 22:29:49,611 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-11-02 22:29:49,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662467420]
[2024-11-02 22:29:49,611 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 22:29:49,611 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 22:29:49,611 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:29:49,613 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 22:29:49,613 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-02 22:29:49,615 INFO  L87              Difference]: Start difference. First operand 381 states and 597 transitions. Second operand  has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33)
[2024-11-02 22:29:52,368 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:29:52,448 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:29:52,449 INFO  L93              Difference]: Finished difference Result 795 states and 1221 transitions.
[2024-11-02 22:29:52,473 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 22:29:52,474 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 170
[2024-11-02 22:29:52,475 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:29:52,482 INFO  L225             Difference]: With dead ends: 795
[2024-11-02 22:29:52,482 INFO  L226             Difference]: Without dead ends: 417
[2024-11-02 22:29:52,489 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110
[2024-11-02 22:29:52,490 INFO  L432           NwaCegarLoop]: 69 mSDtfsCounter, 180 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-02 22:29:52,490 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 151 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-02 22:29:52,491 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 417 states.
[2024-11-02 22:29:52,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 405.
[2024-11-02 22:29:52,554 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 405 states, 224 states have (on average 1.21875) internal successors, (273), 224 states have internal predecessors, (273), 168 states have call successors, (168), 12 states have call predecessors, (168), 12 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168)
[2024-11-02 22:29:52,558 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 609 transitions.
[2024-11-02 22:29:52,559 INFO  L78                 Accepts]: Start accepts. Automaton has 405 states and 609 transitions. Word has length 170
[2024-11-02 22:29:52,560 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:29:52,560 INFO  L471      AbstractCegarLoop]: Abstraction has 405 states and 609 transitions.
[2024-11-02 22:29:52,560 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33)
[2024-11-02 22:29:52,560 INFO  L276                IsEmpty]: Start isEmpty. Operand 405 states and 609 transitions.
[2024-11-02 22:29:52,562 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2024-11-02 22:29:52,563 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:29:52,563 INFO  L215           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:29:52,585 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-02 22:29:52,767 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:29:52,768 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:29:52,768 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:29:52,768 INFO  L85        PathProgramCache]: Analyzing trace with hash 1933300087, now seen corresponding path program 1 times
[2024-11-02 22:29:52,769 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:29:52,769 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172338798]
[2024-11-02 22:29:52,769 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:29:52,769 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:29:52,769 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:29:52,771 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:29:52,773 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 22:29:53,233 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:29:53,249 INFO  L255         TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-02 22:29:53,256 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:30:04,165 WARN  L873   $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) roundNearestTiesToEven 4611686018427382800.0)) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (let ((.cse0 (fp.neg .cse3)) (.cse1 (fp.neg .cse2))) (or (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_24~0 .cse0) (fp.geq ~var_1_24~0 .cse1) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse2) (fp.geq ~var_1_26~0 .cse3) (fp.gt ~var_1_25~0 ~var_1_26~0))))))) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24)) (~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse0) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (fp.geq ~var_1_26~0 .cse1) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.geq ~var_1_24~0 .cse3) (fp.leq ~var_1_24~0 .cse2))) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_24~0 .cse0) (fp.geq ~var_1_24~0 .cse1) (exists ((~var_1_26~0 (_ FloatingPoint 8 24)) (~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse2) (fp.geq ~var_1_26~0 .cse3) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))))) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse3) (fp.leq ~var_1_24~0 .cse2) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse0) (fp.geq ~var_1_26~0 .cse1) (fp.gt ~var_1_25~0 ~var_1_26~0))) (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0))))) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse3) (fp.leq ~var_1_24~0 .cse2) (exists ((~var_1_26~0 (_ FloatingPoint 8 24)) (~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse2) (fp.geq ~var_1_26~0 .cse3) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))))) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_24~0 .cse0) (fp.geq ~var_1_24~0 .cse1) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse0) (fp.geq ~var_1_26~0 .cse1) (fp.gt ~var_1_25~0 ~var_1_26~0))) (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0))))) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse3) (fp.leq ~var_1_24~0 .cse2) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse2) (fp.geq ~var_1_26~0 .cse3) (fp.gt ~var_1_25~0 ~var_1_26~0))))))) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24)) (~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse0) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (fp.geq ~var_1_26~0 .cse1) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.leq ~var_1_24~0 .cse0) (fp.geq ~var_1_24~0 .cse1)))))) is different from true
[2024-11-02 22:30:11,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 283 proven. 3 refuted. 0 times theorem prover too weak. 1226 trivial. 0 not checked.
[2024-11-02 22:30:11,995 INFO  L311         TraceCheckSpWp]: Computing backward predicates...