/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-85.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-22 23:36:03,818 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-22 23:36:03,884 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 23:36:03,887 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-22 23:36:03,888 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-22 23:36:03,912 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-22 23:36:03,913 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-22 23:36:03,913 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-22 23:36:03,914 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-22 23:36:03,916 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-22 23:36:03,917 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-22 23:36:03,917 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-22 23:36:03,917 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-22 23:36:03,918 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-22 23:36:03,918 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-22 23:36:03,919 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-22 23:36:03,919 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-22 23:36:03,919 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-22 23:36:03,919 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-22 23:36:03,919 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-22 23:36:03,920 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-22 23:36:03,920 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-22 23:36:03,920 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-22 23:36:03,920 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-22 23:36:03,920 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-22 23:36:03,920 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-22 23:36:03,921 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-22 23:36:03,921 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-22 23:36:03,921 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-22 23:36:03,921 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-22 23:36:03,922 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-22 23:36:03,922 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-22 23:36:03,922 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-22 23:36:03,922 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-22 23:36:03,922 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 23:36:03,922 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-22 23:36:03,922 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-22 23:36:03,923 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-22 23:36:03,923 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-22 23:36:03,923 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-22 23:36:03,923 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-22 23:36:03,923 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-22 23:36:03,923 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-22 23:36:03,923 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-22 23:36:03,924 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-22 23:36:03,924 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-22 23:36:03,924 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-22 23:36:04,143 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-22 23:36:04,172 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-22 23:36:04,173 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-22 23:36:04,174 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-22 23:36:04,177 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-22 23:36:04,178 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-85.i
[2023-12-22 23:36:05,202 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-22 23:36:05,366 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-22 23:36:05,367 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-85.i
[2023-12-22 23:36:05,373 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9786d1a4e/e1dbde61250645d4ac2f96e42c4c1c56/FLAG61ab5898b
[2023-12-22 23:36:05,387 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9786d1a4e/e1dbde61250645d4ac2f96e42c4c1c56
[2023-12-22 23:36:05,389 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-22 23:36:05,390 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-22 23:36:05,391 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-22 23:36:05,391 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-22 23:36:05,394 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-22 23:36:05,395 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,395 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f48c508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05, skipping insertion in model container
[2023-12-22 23:36:05,396 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,425 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-22 23:36:05,519 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-85.i[913,926]
[2023-12-22 23:36:05,560 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 23:36:05,572 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-22 23:36:05,581 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-85.i[913,926]
[2023-12-22 23:36:05,611 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-22 23:36:05,625 INFO  L206         MainTranslator]: Completed translation
[2023-12-22 23:36:05,626 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05 WrapperNode
[2023-12-22 23:36:05,626 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-22 23:36:05,627 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-22 23:36:05,627 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-22 23:36:05,627 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-22 23:36:05,632 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,640 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,664 INFO  L138                Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124
[2023-12-22 23:36:05,665 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-22 23:36:05,665 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-22 23:36:05,665 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-22 23:36:05,665 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-22 23:36:05,687 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,687 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,706 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,716 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 23:36:05,717 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,717 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,724 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,726 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,727 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,745 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,747 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-22 23:36:05,748 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-22 23:36:05,748 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-22 23:36:05,748 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-22 23:36:05,749 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (1/1) ...
[2023-12-22 23:36:05,763 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-22 23:36:05,770 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-22 23:36:05,800 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 23:36:05,809 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 23:36:05,824 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-22 23:36:05,824 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-22 23:36:05,824 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-22 23:36:05,824 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-22 23:36:05,824 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-22 23:36:05,824 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-22 23:36:05,881 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-22 23:36:05,882 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-22 23:36:08,929 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-22 23:36:08,964 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-22 23:36:08,964 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-22 23:36:08,964 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:36:08 BoogieIcfgContainer
[2023-12-22 23:36:08,964 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-22 23:36:08,966 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-22 23:36:08,966 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-22 23:36:08,968 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-22 23:36:08,969 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:36:05" (1/3) ...
[2023-12-22 23:36:08,969 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a47f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:36:08, skipping insertion in model container
[2023-12-22 23:36:08,969 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:36:05" (2/3) ...
[2023-12-22 23:36:08,969 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a47f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:36:08, skipping insertion in model container
[2023-12-22 23:36:08,970 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:36:08" (3/3) ...
[2023-12-22 23:36:08,971 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-85.i
[2023-12-22 23:36:08,987 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-22 23:36:08,987 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-22 23:36:09,022 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-22 23:36:09,027 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;@653838ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-22 23:36:09,027 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-22 23:36:09,031 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 48 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2023-12-22 23:36:09,061 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2023-12-22 23:36:09,061 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:36:09,062 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:36:09,063 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:36:09,069 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:36:09,069 INFO  L85        PathProgramCache]: Analyzing trace with hash 491342127, now seen corresponding path program 1 times
[2023-12-22 23:36:09,082 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:36:09,082 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036079583]
[2023-12-22 23:36:09,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:36:09,083 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 23:36:09,083 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:36:09,085 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 23:36:09,124 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 23:36:09,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:36:09,483 INFO  L262         TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-22 23:36:09,489 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:36:09,534 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked.
[2023-12-22 23:36:09,534 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:36:09,534 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:36:09,535 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036079583]
[2023-12-22 23:36:09,535 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036079583] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:36:09,535 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 23:36:09,535 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-22 23:36:09,538 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646848126]
[2023-12-22 23:36:09,539 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:36:09,542 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-22 23:36:09,542 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:36:09,560 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-22 23:36:09,561 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-22 23:36:09,563 INFO  L87              Difference]: Start difference. First operand  has 48 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-22 23:36:11,316 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:36:11,317 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:36:11,317 INFO  L93              Difference]: Finished difference Result 93 states and 161 transitions.
[2023-12-22 23:36:11,352 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-22 23:36:11,354 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97
[2023-12-22 23:36:11,354 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:36:11,359 INFO  L225             Difference]: With dead ends: 93
[2023-12-22 23:36:11,359 INFO  L226             Difference]: Without dead ends: 46
[2023-12-22 23:36:11,361 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 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 23:36:11,363 INFO  L413           NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-12-22 23:36:11,364 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-12-22 23:36:11,375 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2023-12-22 23:36:11,389 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46.
[2023-12-22 23:36:11,390 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 46 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2023-12-22 23:36:11,391 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions.
[2023-12-22 23:36:11,392 INFO  L78                 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 97
[2023-12-22 23:36:11,393 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:36:11,393 INFO  L495      AbstractCegarLoop]: Abstraction has 46 states and 69 transitions.
[2023-12-22 23:36:11,393 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-22 23:36:11,393 INFO  L276                IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions.
[2023-12-22 23:36:11,396 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2023-12-22 23:36:11,396 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:36:11,396 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:36:11,411 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
[2023-12-22 23:36:11,608 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 23:36:11,609 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:36:11,610 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:36:11,610 INFO  L85        PathProgramCache]: Analyzing trace with hash 89204517, now seen corresponding path program 1 times
[2023-12-22 23:36:11,611 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:36:11,611 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862773407]
[2023-12-22 23:36:11,611 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:36:11,611 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 23:36:11,611 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:36:11,612 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 23:36:11,617 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 23:36:11,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:36:11,944 INFO  L262         TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-22 23:36:11,949 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:36:12,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2023-12-22 23:36:12,356 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-22 23:36:12,356 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:36:12,356 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862773407]
[2023-12-22 23:36:12,356 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862773407] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-22 23:36:12,357 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-22 23:36:12,357 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-22 23:36:12,357 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102265394]
[2023-12-22 23:36:12,357 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-22 23:36:12,358 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-22 23:36:12,358 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:36:12,359 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-22 23:36:12,359 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-22 23:36:12,359 INFO  L87              Difference]: Start difference. First operand 46 states and 69 transitions. Second operand  has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2023-12-22 23:36:14,365 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-22 23:36:14,514 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:36:14,515 INFO  L93              Difference]: Finished difference Result 91 states and 137 transitions.
[2023-12-22 23:36:14,541 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-22 23:36:14,541 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97
[2023-12-22 23:36:14,542 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:36:14,543 INFO  L225             Difference]: With dead ends: 91
[2023-12-22 23:36:14,543 INFO  L226             Difference]: Without dead ends: 46
[2023-12-22 23:36:14,543 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-22 23:36:14,544 INFO  L413           NwaCegarLoop]: 61 mSDtfsCounter, 61 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-22 23:36:14,544 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 75 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-22 23:36:14,545 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2023-12-22 23:36:14,551 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46.
[2023-12-22 23:36:14,551 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 46 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2023-12-22 23:36:14,552 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 68 transitions.
[2023-12-22 23:36:14,552 INFO  L78                 Accepts]: Start accepts. Automaton has 46 states and 68 transitions. Word has length 97
[2023-12-22 23:36:14,553 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:36:14,553 INFO  L495      AbstractCegarLoop]: Abstraction has 46 states and 68 transitions.
[2023-12-22 23:36:14,553 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2023-12-22 23:36:14,553 INFO  L276                IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions.
[2023-12-22 23:36:14,554 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2023-12-22 23:36:14,554 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:36:14,555 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:36:14,584 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
[2023-12-22 23:36:14,767 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 23:36:14,767 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:36:14,769 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:36:14,769 INFO  L85        PathProgramCache]: Analyzing trace with hash -2000271415, now seen corresponding path program 1 times
[2023-12-22 23:36:14,770 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:36:14,773 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014866587]
[2023-12-22 23:36:14,773 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:36:14,773 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 23:36:14,773 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:36:14,774 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 23:36:14,779 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 23:36:15,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:36:15,093 INFO  L262         TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-22 23:36:15,096 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-22 23:36:15,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 134 proven. 6 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked.
[2023-12-22 23:36:15,990 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-22 23:36:16,443 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2023-12-22 23:36:16,443 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-22 23:36:16,443 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014866587]
[2023-12-22 23:36:16,444 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014866587] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-22 23:36:16,444 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-22 23:36:16,444 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14
[2023-12-22 23:36:16,444 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604087906]
[2023-12-22 23:36:16,444 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-22 23:36:16,444 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-12-22 23:36:16,445 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-22 23:36:16,445 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-12-22 23:36:16,445 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2023-12-22 23:36:16,445 INFO  L87              Difference]: Start difference. First operand 46 states and 68 transitions. Second operand  has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30)
[2023-12-22 23:36:21,094 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:36:24,078 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-22 23:36:24,743 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-22 23:36:24,744 INFO  L93              Difference]: Finished difference Result 221 states and 326 transitions.
[2023-12-22 23:36:24,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-22 23:36:24,744 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 98
[2023-12-22 23:36:24,745 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-22 23:36:24,746 INFO  L225             Difference]: With dead ends: 221
[2023-12-22 23:36:24,746 INFO  L226             Difference]: Without dead ends: 176
[2023-12-22 23:36:24,747 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812
[2023-12-22 23:36:24,748 INFO  L413           NwaCegarLoop]: 70 mSDtfsCounter, 277 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time
[2023-12-22 23:36:24,748 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 438 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time]
[2023-12-22 23:36:24,749 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 176 states.
[2023-12-22 23:36:24,780 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 117.
[2023-12-22 23:36:24,780 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 117 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 72 states have internal predecessors, (89), 41 states have call successors, (41), 4 states have call predecessors, (41), 4 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41)
[2023-12-22 23:36:24,784 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 171 transitions.
[2023-12-22 23:36:24,784 INFO  L78                 Accepts]: Start accepts. Automaton has 117 states and 171 transitions. Word has length 98
[2023-12-22 23:36:24,786 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-22 23:36:24,786 INFO  L495      AbstractCegarLoop]: Abstraction has 117 states and 171 transitions.
[2023-12-22 23:36:24,786 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 4 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30)
[2023-12-22 23:36:24,786 INFO  L276                IsEmpty]: Start isEmpty. Operand 117 states and 171 transitions.
[2023-12-22 23:36:24,790 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2023-12-22 23:36:24,790 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-22 23:36:24,791 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:36:24,804 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 23:36:25,002 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 23:36:25,003 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-22 23:36:25,004 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-22 23:36:25,004 INFO  L85        PathProgramCache]: Analyzing trace with hash 1542607557, now seen corresponding path program 1 times
[2023-12-22 23:36:25,005 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-22 23:36:25,005 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829621356]
[2023-12-22 23:36:25,005 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-22 23:36:25,005 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 23:36:25,005 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-22 23:36:25,010 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 23:36:25,011 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 23:36:25,292 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-22 23:36:25,308 INFO  L262         TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-22 23:36:25,312 INFO  L285         TraceCheckSpWp]: Computing forward predicates...