/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 03:18:13,473 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 03:18:13,527 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-24 03:18:13,531 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 03:18:13,532 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 03:18:13,550 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 03:18:13,551 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 03:18:13,551 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 03:18:13,552 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 03:18:13,552 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 03:18:13,553 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 03:18:13,553 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 03:18:13,554 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 03:18:13,554 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 03:18:13,554 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 03:18:13,555 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 03:18:13,555 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 03:18:13,555 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 03:18:13,556 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 03:18:13,556 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 03:18:13,557 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 03:18:13,557 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 03:18:13,557 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 03:18:13,558 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 03:18:13,558 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 03:18:13,559 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 03:18:13,559 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 03:18:13,559 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 03:18:13,560 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 03:18:13,560 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 03:18:13,560 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 03:18:13,561 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 03:18:13,561 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 03:18:13,561 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 03:18:13,562 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 03:18:13,562 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 03:18:13,563 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 03:18:13,563 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 03:18:13,563 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 03:18:13,564 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 03:18:13,564 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 03:18:13,565 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 03:18:13,565 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 03:18:13,565 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 03:18:13,566 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 03:18:13,566 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 03:18:13,566 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 03:18:13,742 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 03:18:13,758 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 03:18:13,761 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 03:18:13,762 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 03:18:13,762 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 03:18:13,763 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i
[2023-12-24 03:18:14,981 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 03:18:15,189 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 03:18:15,190 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-70.i
[2023-12-24 03:18:15,202 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e952cb56/c1b198df5cf149628ec65015fe983b7b/FLAG552e76551
[2023-12-24 03:18:15,213 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e952cb56/c1b198df5cf149628ec65015fe983b7b
[2023-12-24 03:18:15,216 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 03:18:15,217 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 03:18:15,218 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 03:18:15,218 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 03:18:15,222 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 03:18:15,222 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,223 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1019f2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15, skipping insertion in model container
[2023-12-24 03:18:15,223 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,256 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 03:18:15,380 WARN  L239   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_loopvsstraightlinecode_50-1loop_file-70.i[915,928]
[2023-12-24 03:18:15,428 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 03:18:15,440 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 03:18:15,450 WARN  L239   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_loopvsstraightlinecode_50-1loop_file-70.i[915,928]
[2023-12-24 03:18:15,471 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 03:18:15,486 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 03:18:15,486 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15 WrapperNode
[2023-12-24 03:18:15,486 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 03:18:15,487 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 03:18:15,488 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 03:18:15,488 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 03:18:15,493 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,505 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,527 INFO  L138                Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121
[2023-12-24 03:18:15,528 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 03:18:15,529 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 03:18:15,529 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 03:18:15,529 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 03:18:15,543 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,543 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,547 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,558 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].
[2023-12-24 03:18:15,559 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,559 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,573 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,576 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,578 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,579 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,582 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 03:18:15,583 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 03:18:15,583 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 03:18:15,583 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 03:18:15,584 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (1/1) ...
[2023-12-24 03:18:15,604 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 03:18:15,615 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 03:18:15,633 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)
[2023-12-24 03:18:15,643 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
[2023-12-24 03:18:15,662 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 03:18:15,663 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 03:18:15,663 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 03:18:15,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 03:18:15,663 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 03:18:15,663 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 03:18:15,723 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 03:18:15,724 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 03:18:19,262 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 03:18:19,322 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 03:18:19,322 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 03:18:19,323 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:18:19 BoogieIcfgContainer
[2023-12-24 03:18:19,323 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 03:18:19,325 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 03:18:19,325 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 03:18:19,328 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 03:18:19,328 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 03:18:15" (1/3) ...
[2023-12-24 03:18:19,329 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f35ee7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:18:19, skipping insertion in model container
[2023-12-24 03:18:19,329 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:18:15" (2/3) ...
[2023-12-24 03:18:19,329 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f35ee7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:18:19, skipping insertion in model container
[2023-12-24 03:18:19,329 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:18:19" (3/3) ...
[2023-12-24 03:18:19,330 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-70.i
[2023-12-24 03:18:19,345 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 03:18:19,345 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 03:18:19,380 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 03:18:19,386 INFO  L357      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, mHoare=true, 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;@68f96a15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 03:18:19,386 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 03:18:19,389 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2023-12-24 03:18:19,398 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-24 03:18:19,398 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:18:19,399 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:18:19,400 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:18:19,404 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:18:19,404 INFO  L85        PathProgramCache]: Analyzing trace with hash -1858714461, now seen corresponding path program 1 times
[2023-12-24 03:18:19,414 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:18:19,415 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476150575]
[2023-12-24 03:18:19,415 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:18:19,416 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 03:18:19,416 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:18:19,417 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 03:18:19,438 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-24 03:18:19,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:18:19,743 INFO  L262         TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 03:18:19,751 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:18:19,780 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-24 03:18:19,780 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 03:18:19,781 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:18:19,781 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476150575]
[2023-12-24 03:18:19,782 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [476150575] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 03:18:19,782 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 03:18:19,782 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 03:18:19,783 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682803754]
[2023-12-24 03:18:19,784 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 03:18:19,787 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 03:18:19,788 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:18:19,810 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 03:18:19,810 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 03:18:19,812 INFO  L87              Difference]: Start difference. First operand  has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-24 03:18:21,882 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 03:18:21,921 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:18:21,921 INFO  L93              Difference]: Finished difference Result 85 states and 144 transitions.
[2023-12-24 03:18:21,922 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 03:18:21,924 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85
[2023-12-24 03:18:21,924 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:18:21,929 INFO  L225             Difference]: With dead ends: 85
[2023-12-24 03:18:21,929 INFO  L226             Difference]: Without dead ends: 41
[2023-12-24 03:18:21,931 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 03:18:21,934 INFO  L413           NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-24 03:18:21,935 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-24 03:18:21,945 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2023-12-24 03:18:21,963 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2023-12-24 03:18:21,964 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2023-12-24 03:18:21,966 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 60 transitions.
[2023-12-24 03:18:21,967 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 60 transitions. Word has length 85
[2023-12-24 03:18:21,967 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:18:21,967 INFO  L495      AbstractCegarLoop]: Abstraction has 41 states and 60 transitions.
[2023-12-24 03:18:21,968 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-24 03:18:21,968 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions.
[2023-12-24 03:18:21,970 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-24 03:18:21,971 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:18:21,971 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:18:21,985 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-24 03:18:22,182 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 03:18:22,182 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:18:22,183 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:18:22,183 INFO  L85        PathProgramCache]: Analyzing trace with hash 2123223595, now seen corresponding path program 1 times
[2023-12-24 03:18:22,184 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:18:22,184 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167969523]
[2023-12-24 03:18:22,184 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:18:22,184 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 03:18:22,184 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:18:22,187 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 03:18:22,195 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-24 03:18:22,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:18:22,483 INFO  L262         TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-24 03:18:22,489 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:18:24,180 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2023-12-24 03:18:24,180 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 03:18:26,922 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:18:26,922 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167969523]
[2023-12-24 03:18:26,922 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [167969523] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 03:18:26,922 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1441622803]
[2023-12-24 03:18:26,923 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:18:26,923 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-24 03:18:26,923 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-24 03:18:26,928 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)
[2023-12-24 03:18:26,947 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2023-12-24 03:18:27,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:18:27,641 INFO  L262         TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-24 03:18:27,645 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:18:28,874 INFO  L134       CoverageAnalysis]: Checked inductivity of 312 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked.
[2023-12-24 03:18:28,874 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 03:18:29,010 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1441622803] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 03:18:29,011 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 03:18:29,011 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8
[2023-12-24 03:18:29,012 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489189841]
[2023-12-24 03:18:29,012 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 03:18:29,013 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-24 03:18:29,013 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:18:29,014 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-24 03:18:29,014 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156
[2023-12-24 03:18:29,014 INFO  L87              Difference]: Start difference. First operand 41 states and 60 transitions. Second operand  has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-24 03:18:32,732 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 03:18:35,501 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 03:18:37,200 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 03:18:41,421 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 03:18:42,652 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 03:18:43,835 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:18:43,838 INFO  L93              Difference]: Finished difference Result 168 states and 243 transitions.
[2023-12-24 03:18:43,839 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2023-12-24 03:18:43,839 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85
[2023-12-24 03:18:43,840 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:18:43,841 INFO  L225             Difference]: With dead ends: 168
[2023-12-24 03:18:43,841 INFO  L226             Difference]: Without dead ends: 128
[2023-12-24 03:18:43,842 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506
[2023-12-24 03:18:43,843 INFO  L413           NwaCegarLoop]: 75 mSDtfsCounter, 137 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time
[2023-12-24 03:18:43,844 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 269 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 372 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time]
[2023-12-24 03:18:43,845 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2023-12-24 03:18:43,864 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 85.
[2023-12-24 03:18:43,864 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 85 states, 55 states have (on average 1.290909090909091) internal successors, (71), 55 states have internal predecessors, (71), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-24 03:18:43,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions.
[2023-12-24 03:18:43,866 INFO  L78                 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 85
[2023-12-24 03:18:43,866 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:18:43,866 INFO  L495      AbstractCegarLoop]: Abstraction has 85 states and 123 transitions.
[2023-12-24 03:18:43,867 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)
[2023-12-24 03:18:43,867 INFO  L276                IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions.
[2023-12-24 03:18:43,869 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2023-12-24 03:18:43,869 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:18:43,869 INFO  L195           NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:18:43,880 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2023-12-24 03:18:44,085 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-24 03:18:44,277 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 03:18:44,277 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:18:44,278 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:18:44,278 INFO  L85        PathProgramCache]: Analyzing trace with hash -2114485399, now seen corresponding path program 1 times
[2023-12-24 03:18:44,279 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:18:44,279 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289059513]
[2023-12-24 03:18:44,279 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:18:44,279 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 03:18:44,279 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:18:44,280 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 03:18:44,284 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-24 03:18:44,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:18:44,648 INFO  L262         TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-24 03:18:44,653 INFO  L285         TraceCheckSpWp]: Computing forward predicates...