/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_fillercode_fillercodesize_normal_file-11.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 22:43:13,543 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 22:43:13,609 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-22 22:43:13,613 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 22:43:13,613 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 22:43:13,635 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 22:43:13,635 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 22:43:13,636 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 22:43:13,636 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 22:43:13,639 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 22:43:13,639 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 22:43:13,639 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 22:43:13,639 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 22:43:13,641 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 22:43:13,641 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 22:43:13,641 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 22:43:13,642 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 22:43:13,642 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 22:43:13,642 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 22:43:13,642 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 22:43:13,642 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 22:43:13,642 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 22:43:13,643 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 22:43:13,643 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 22:43:13,643 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 22:43:13,643 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 22:43:13,643 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 22:43:13,643 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 22:43:13,643 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 22:43:13,644 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 22:43:13,644 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 22:43:13,644 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 22:43:13,645 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 22:43:13,645 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 22:43:13,645 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 22:43:13,645 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 22:43:13,645 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 22:43:13,645 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 22:43:13,645 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 22:43:13,645 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 22:43:13,646 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 22:43:13,646 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 22:43:13,646 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 22:43:13,646 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 22:43:13,646 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 22:43:13,646 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 22:43:13,646 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 22:43:13,853 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 22:43:13,870 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 22:43:13,872 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 22:43:13,872 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 22:43:13,873 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 22:43:13,874 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-11.i
[2023-12-22 22:43:14,787 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 22:43:14,953 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 22:43:14,953 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-11.i
[2023-12-22 22:43:14,967 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8410841c1/4e3578c648c64631bc740630ba547ce6/FLAG683225571
[2023-12-22 22:43:14,986 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8410841c1/4e3578c648c64631bc740630ba547ce6
[2023-12-22 22:43:14,988 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 22:43:14,989 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 22:43:14,991 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 22:43:14,991 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 22:43:14,994 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 22:43:14,995 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:43:14" (1/1) ...
[2023-12-22 22:43:14,996 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d76aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:14, skipping insertion in model container
[2023-12-22 22:43:14,996 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:43:14" (1/1) ...
[2023-12-22 22:43:15,034 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 22:43:15,145 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_fillercode_fillercodesize_normal_file-11.i[913,926]
[2023-12-22 22:43:15,177 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 22:43:15,192 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 22:43:15,200 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_fillercode_fillercodesize_normal_file-11.i[913,926]
[2023-12-22 22:43:15,220 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 22:43:15,231 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 22:43:15,231 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15 WrapperNode
[2023-12-22 22:43:15,231 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 22:43:15,232 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 22:43:15,232 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 22:43:15,232 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 22:43:15,236 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,244 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,260 INFO  L138                Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 127
[2023-12-22 22:43:15,260 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 22:43:15,261 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 22:43:15,261 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 22:43:15,261 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 22:43:15,268 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,268 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,271 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,279 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].
[2023-12-22 22:43:15,280 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,280 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,286 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,288 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,290 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,291 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,293 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 22:43:15,294 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 22:43:15,294 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 22:43:15,294 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 22:43:15,294 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (1/1) ...
[2023-12-22 22:43:15,306 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 22:43:15,315 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 22:43:15,325 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)
[2023-12-22 22:43:15,330 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
[2023-12-22 22:43:15,347 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 22:43:15,347 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 22:43:15,347 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 22:43:15,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 22:43:15,347 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 22:43:15,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 22:43:15,398 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 22:43:15,400 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 22:43:15,614 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 22:43:15,650 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 22:43:15,651 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 22:43:15,651 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:43:15 BoogieIcfgContainer
[2023-12-22 22:43:15,651 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 22:43:15,652 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 22:43:15,652 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 22:43:15,656 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 22:43:15,656 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:43:14" (1/3) ...
[2023-12-22 22:43:15,656 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6042287d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:43:15, skipping insertion in model container
[2023-12-22 22:43:15,656 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:43:15" (2/3) ...
[2023-12-22 22:43:15,657 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6042287d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:43:15, skipping insertion in model container
[2023-12-22 22:43:15,657 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:43:15" (3/3) ...
[2023-12-22 22:43:15,657 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-11.i
[2023-12-22 22:43:15,668 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 22:43:15,668 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 22:43:15,697 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 22:43:15,704 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;@11e6a4f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 22:43:15,704 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 22:43:15,707 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 51 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-22 22:43:15,715 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2023-12-22 22:43:15,715 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:43:15,715 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 22:43:15,716 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:43:15,719 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:43:15,719 INFO  L85        PathProgramCache]: Analyzing trace with hash 990375764, now seen corresponding path program 1 times
[2023-12-22 22:43:15,728 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:43:15,728 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220421015]
[2023-12-22 22:43:15,728 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:43:15,728 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
[2023-12-22 22:43:15,728 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:43:15,730 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)
[2023-12-22 22:43:15,732 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
[2023-12-22 22:43:15,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:43:15,861 INFO  L262         TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 22:43:15,867 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 22:43:15,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked.
[2023-12-22 22:43:15,893 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 22:43:15,893 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 22:43:15,893 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220421015]
[2023-12-22 22:43:15,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220421015] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 22:43:15,894 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 22:43:15,894 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 22:43:15,895 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875171332]
[2023-12-22 22:43:15,896 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 22:43:15,898 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 22:43:15,898 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 22:43:15,918 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 22:43:15,918 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 22:43:15,920 INFO  L87              Difference]: Start difference. First operand  has 51 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 32 states have internal predecessors, (46), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-22 22:43:15,969 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 22:43:15,969 INFO  L93              Difference]: Finished difference Result 99 states and 175 transitions.
[2023-12-22 22:43:15,971 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 22:43:15,972 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 106
[2023-12-22 22:43:15,972 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 22:43:15,977 INFO  L225             Difference]: With dead ends: 99
[2023-12-22 22:43:15,977 INFO  L226             Difference]: Without dead ends: 49
[2023-12-22 22:43:15,979 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 22:43:15,981 INFO  L413           NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-22 22:43:15,982 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-22 22:43:15,992 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2023-12-22 22:43:16,035 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49.
[2023-12-22 22:43:16,036 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-22 22:43:16,037 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 74 transitions.
[2023-12-22 22:43:16,038 INFO  L78                 Accepts]: Start accepts. Automaton has 49 states and 74 transitions. Word has length 106
[2023-12-22 22:43:16,038 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 22:43:16,038 INFO  L495      AbstractCegarLoop]: Abstraction has 49 states and 74 transitions.
[2023-12-22 22:43:16,038 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-22 22:43:16,039 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 74 transitions.
[2023-12-22 22:43:16,040 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2023-12-22 22:43:16,040 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:43:16,041 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 22:43:16,048 INFO  L552       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)] Ended with exit code 0
[2023-12-22 22:43:16,241 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
[2023-12-22 22:43:16,242 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:43:16,242 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:43:16,243 INFO  L85        PathProgramCache]: Analyzing trace with hash -123222896, now seen corresponding path program 1 times
[2023-12-22 22:43:16,243 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:43:16,243 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097053808]
[2023-12-22 22:43:16,243 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:43:16,244 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
[2023-12-22 22:43:16,244 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:43:16,245 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)
[2023-12-22 22:43:16,246 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
[2023-12-22 22:43:16,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:43:16,373 INFO  L262         TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-22 22:43:16,380 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 22:43:16,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-22 22:43:16,841 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 22:43:16,841 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 22:43:16,844 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097053808]
[2023-12-22 22:43:16,844 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097053808] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 22:43:16,845 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 22:43:16,845 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 22:43:16,845 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634932460]
[2023-12-22 22:43:16,845 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 22:43:16,847 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-22 22:43:16,847 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 22:43:16,848 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-22 22:43:16,848 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-22 22:43:16,848 INFO  L87              Difference]: Start difference. First operand 49 states and 74 transitions. Second operand  has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-22 22:43:17,120 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 22:43:17,121 INFO  L93              Difference]: Finished difference Result 146 states and 221 transitions.
[2023-12-22 22:43:17,122 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-22 22:43:17,123 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 106
[2023-12-22 22:43:17,123 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 22:43:17,124 INFO  L225             Difference]: With dead ends: 146
[2023-12-22 22:43:17,124 INFO  L226             Difference]: Without dead ends: 98
[2023-12-22 22:43:17,125 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-22 22:43:17,126 INFO  L413           NwaCegarLoop]: 69 mSDtfsCounter, 65 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-22 22:43:17,126 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 236 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-22 22:43:17,127 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2023-12-22 22:43:17,146 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 81.
[2023-12-22 22:43:17,146 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-22 22:43:17,151 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 122 transitions.
[2023-12-22 22:43:17,151 INFO  L78                 Accepts]: Start accepts. Automaton has 81 states and 122 transitions. Word has length 106
[2023-12-22 22:43:17,152 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 22:43:17,152 INFO  L495      AbstractCegarLoop]: Abstraction has 81 states and 122 transitions.
[2023-12-22 22:43:17,153 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-22 22:43:17,153 INFO  L276                IsEmpty]: Start isEmpty. Operand 81 states and 122 transitions.
[2023-12-22 22:43:17,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2023-12-22 22:43:17,157 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:43:17,157 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 22:43:17,164 INFO  L552       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)] Ended with exit code 0
[2023-12-22 22:43:17,361 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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
[2023-12-22 22:43:17,362 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:43:17,362 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:43:17,363 INFO  L85        PathProgramCache]: Analyzing trace with hash 797510062, now seen corresponding path program 1 times
[2023-12-22 22:43:17,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:43:17,363 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451274104]
[2023-12-22 22:43:17,364 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:43:17,364 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
[2023-12-22 22:43:17,364 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:43:17,365 INFO  L229       MonitoredProcess]: Starting monitored process 4 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)
[2023-12-22 22:43:17,390 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 (4)] Waiting until timeout for monitored process
[2023-12-22 22:43:17,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:43:17,467 INFO  L262         TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-22 22:43:17,470 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 22:43:17,616 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked.
[2023-12-22 22:43:17,616 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 22:43:17,738 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 9 proven. 39 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2023-12-22 22:43:17,739 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 22:43:17,741 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451274104]
[2023-12-22 22:43:17,743 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [451274104] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 22:43:17,744 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 22:43:17,747 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2023-12-22 22:43:17,747 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055880482]
[2023-12-22 22:43:17,748 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 22:43:17,749 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-22 22:43:17,749 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 22:43:17,750 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-22 22:43:17,750 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2023-12-22 22:43:17,750 INFO  L87              Difference]: Start difference. First operand 81 states and 122 transitions. Second operand  has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2023-12-22 22:43:17,991 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 22:43:17,991 INFO  L93              Difference]: Finished difference Result 145 states and 209 transitions.
[2023-12-22 22:43:17,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-22 22:43:17,996 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 107
[2023-12-22 22:43:17,996 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 22:43:17,997 INFO  L225             Difference]: With dead ends: 145
[2023-12-22 22:43:17,997 INFO  L226             Difference]: Without dead ends: 97
[2023-12-22 22:43:17,998 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240
[2023-12-22 22:43:17,998 INFO  L413           NwaCegarLoop]: 46 mSDtfsCounter, 118 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-22 22:43:17,999 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 102 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-22 22:43:17,999 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2023-12-22 22:43:18,019 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 89.
[2023-12-22 22:43:18,020 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 50 states have (on average 1.16) internal successors, (58), 50 states have internal predecessors, (58), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-22 22:43:18,021 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions.
[2023-12-22 22:43:18,021 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 107
[2023-12-22 22:43:18,021 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 22:43:18,021 INFO  L495      AbstractCegarLoop]: Abstraction has 89 states and 126 transitions.
[2023-12-22 22:43:18,021 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2023-12-22 22:43:18,021 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions.
[2023-12-22 22:43:18,022 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2023-12-22 22:43:18,022 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:43:18,022 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 22:43:18,039 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 (4)] Forceful destruction successful, exit code 0
[2023-12-22 22:43:18,242 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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
[2023-12-22 22:43:18,242 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:43:18,243 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:43:18,243 INFO  L85        PathProgramCache]: Analyzing trace with hash -1856579691, now seen corresponding path program 1 times
[2023-12-22 22:43:18,243 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:43:18,243 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471879049]
[2023-12-22 22:43:18,243 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:43:18,244 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
[2023-12-22 22:43:18,244 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:43:18,245 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)
[2023-12-22 22:43:18,256 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
[2023-12-22 22:43:18,323 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:43:18,327 INFO  L262         TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-22 22:43:18,329 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 22:43:18,524 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-22 22:43:18,525 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 22:43:18,525 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 22:43:18,525 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471879049]
[2023-12-22 22:43:18,525 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [471879049] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 22:43:18,525 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 22:43:18,525 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-22 22:43:18,526 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217862641]
[2023-12-22 22:43:18,526 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 22:43:18,526 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-22 22:43:18,528 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 22:43:18,528 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-22 22:43:18,528 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-22 22:43:18,528 INFO  L87              Difference]: Start difference. First operand 89 states and 126 transitions. Second operand  has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-22 22:43:18,923 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 22:43:18,923 INFO  L93              Difference]: Finished difference Result 145 states and 206 transitions.
[2023-12-22 22:43:18,924 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 22:43:18,924 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108
[2023-12-22 22:43:18,924 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 22:43:18,925 INFO  L225             Difference]: With dead ends: 145
[2023-12-22 22:43:18,925 INFO  L226             Difference]: Without dead ends: 93
[2023-12-22 22:43:18,926 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-22 22:43:18,926 INFO  L413           NwaCegarLoop]: 114 mSDtfsCounter, 52 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-22 22:43:18,927 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 164 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-22 22:43:18,927 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2023-12-22 22:43:18,939 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89.
[2023-12-22 22:43:18,939 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 50 states have (on average 1.12) internal successors, (56), 50 states have internal predecessors, (56), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-22 22:43:18,940 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 124 transitions.
[2023-12-22 22:43:18,940 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 124 transitions. Word has length 108
[2023-12-22 22:43:18,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 22:43:18,940 INFO  L495      AbstractCegarLoop]: Abstraction has 89 states and 124 transitions.
[2023-12-22 22:43:18,940 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-22 22:43:18,940 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 124 transitions.
[2023-12-22 22:43:18,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2023-12-22 22:43:18,941 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 22:43:18,941 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-22 22:43:18,950 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 (5)] Forceful destruction successful, exit code 0
[2023-12-22 22:43:19,146 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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
[2023-12-22 22:43:19,146 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 22:43:19,147 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 22:43:19,147 INFO  L85        PathProgramCache]: Analyzing trace with hash -1812318986, now seen corresponding path program 1 times
[2023-12-22 22:43:19,147 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 22:43:19,147 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050551185]
[2023-12-22 22:43:19,147 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 22:43:19,148 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
[2023-12-22 22:43:19,148 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 22:43:19,149 INFO  L229       MonitoredProcess]: Starting monitored process 6 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)
[2023-12-22 22:43:19,151 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 (6)] Waiting until timeout for monitored process
[2023-12-22 22:43:19,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 22:43:19,231 INFO  L262         TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-12-22 22:43:19,235 INFO  L285         TraceCheckSpWp]: Computing forward predicates...