/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_fillercodestructure_filler-pr-co_file-84.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 13:37:32,385 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 13:37:32,443 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 13:37:32,453 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 13:37:32,453 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 13:37:32,479 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 13:37:32,479 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 13:37:32,479 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 13:37:32,480 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 13:37:32,483 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 13:37:32,483 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 13:37:32,483 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 13:37:32,483 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 13:37:32,484 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 13:37:32,484 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 13:37:32,485 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 13:37:32,485 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 13:37:32,485 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 13:37:32,485 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 13:37:32,485 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 13:37:32,485 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 13:37:32,486 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 13:37:32,486 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 13:37:32,486 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 13:37:32,486 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 13:37:32,486 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 13:37:32,487 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 13:37:32,487 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 13:37:32,487 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 13:37:32,487 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 13:37:32,488 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 13:37:32,488 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 13:37:32,488 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 13:37:32,488 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 13:37:32,488 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 13:37:32,488 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 13:37:32,488 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 13:37:32,489 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 13:37:32,489 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 13:37:32,489 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 13:37:32,489 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 13:37:32,489 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 13:37:32,489 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 13:37:32,489 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 13:37:32,490 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 13:37:32,490 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 13:37:32,490 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 13:37:32,682 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 13:37:32,695 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 13:37:32,697 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 13:37:32,697 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 13:37:32,698 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 13:37:32,698 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-84.i
[2023-12-23 13:37:33,735 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 13:37:33,895 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 13:37:33,895 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-84.i
[2023-12-23 13:37:33,901 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0154b1e29/ee9721e9741d4394bb2a0d9f0e89637f/FLAG5111bd297
[2023-12-23 13:37:33,910 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0154b1e29/ee9721e9741d4394bb2a0d9f0e89637f
[2023-12-23 13:37:33,912 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 13:37:33,913 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 13:37:33,913 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 13:37:33,913 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 13:37:33,918 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 13:37:33,918 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:37:33" (1/1) ...
[2023-12-23 13:37:33,919 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d3e7822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:33, skipping insertion in model container
[2023-12-23 13:37:33,919 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:37:33" (1/1) ...
[2023-12-23 13:37:33,946 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 13:37:34,037 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_fillercodestructure_filler-pr-co_file-84.i[919,932]
[2023-12-23 13:37:34,092 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 13:37:34,103 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 13:37:34,112 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_fillercodestructure_filler-pr-co_file-84.i[919,932]
[2023-12-23 13:37:34,146 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 13:37:34,168 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 13:37:34,169 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34 WrapperNode
[2023-12-23 13:37:34,169 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 13:37:34,170 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 13:37:34,170 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 13:37:34,170 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 13:37:34,174 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,188 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,213 INFO  L138                Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 221
[2023-12-23 13:37:34,213 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 13:37:34,214 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 13:37:34,214 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 13:37:34,214 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 13:37:34,222 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,222 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,226 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,236 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].
[2023-12-23 13:37:34,236 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,236 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,244 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,247 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,248 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,250 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,252 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 13:37:34,253 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 13:37:34,253 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 13:37:34,253 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 13:37:34,254 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (1/1) ...
[2023-12-23 13:37:34,257 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 13:37:34,267 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 13:37:34,284 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)
[2023-12-23 13:37:34,289 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
[2023-12-23 13:37:34,305 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 13:37:34,305 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 13:37:34,305 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 13:37:34,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 13:37:34,305 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 13:37:34,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 13:37:34,427 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 13:37:34,429 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 13:37:35,052 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 13:37:35,128 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 13:37:35,128 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 13:37:35,128 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:37:35 BoogieIcfgContainer
[2023-12-23 13:37:35,128 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 13:37:35,130 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 13:37:35,130 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 13:37:35,132 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 13:37:35,132 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:37:33" (1/3) ...
[2023-12-23 13:37:35,133 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39865572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:37:35, skipping insertion in model container
[2023-12-23 13:37:35,133 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:37:34" (2/3) ...
[2023-12-23 13:37:35,133 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39865572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:37:35, skipping insertion in model container
[2023-12-23 13:37:35,133 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:37:35" (3/3) ...
[2023-12-23 13:37:35,134 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-84.i
[2023-12-23 13:37:35,149 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 13:37:35,149 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 13:37:35,183 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 13:37:35,188 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;@51b2d012, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 13:37:35,188 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 13:37:35,191 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 100 states, 57 states have (on average 1.4385964912280702) internal successors, (82), 58 states have internal predecessors, (82), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-23 13:37:35,204 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 246
[2023-12-23 13:37:35,204 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:37:35,205 INFO  L195           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 13:37:35,205 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:37:35,208 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:37:35,209 INFO  L85        PathProgramCache]: Analyzing trace with hash -175843202, now seen corresponding path program 1 times
[2023-12-23 13:37:35,218 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:37:35,218 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736590368]
[2023-12-23 13:37:35,218 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:37:35,219 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
[2023-12-23 13:37:35,219 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:37:35,221 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)
[2023-12-23 13:37:35,235 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
[2023-12-23 13:37:35,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:37:35,575 INFO  L262         TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 13:37:35,584 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:37:35,626 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 510 proven. 0 refuted. 0 times theorem prover too weak. 2610 trivial. 0 not checked.
[2023-12-23 13:37:35,627 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:37:35,627 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:37:35,627 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736590368]
[2023-12-23 13:37:35,628 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736590368] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:37:35,628 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:37:35,628 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 13:37:35,629 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525841779]
[2023-12-23 13:37:35,630 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:37:35,633 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 13:37:35,633 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:37:35,651 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 13:37:35,652 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 13:37:35,654 INFO  L87              Difference]: Start difference. First operand  has 100 states, 57 states have (on average 1.4385964912280702) internal successors, (82), 58 states have internal predecessors, (82), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2023-12-23 13:37:35,724 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:37:35,724 INFO  L93              Difference]: Finished difference Result 197 states and 362 transitions.
[2023-12-23 13:37:35,733 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 13:37:35,734 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 245
[2023-12-23 13:37:35,735 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:37:35,740 INFO  L225             Difference]: With dead ends: 197
[2023-12-23 13:37:35,740 INFO  L226             Difference]: Without dead ends: 98
[2023-12-23 13:37:35,743 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 13:37:35,745 INFO  L413           NwaCegarLoop]: 154 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, 154 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
[2023-12-23 13:37:35,746 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 13:37:35,757 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2023-12-23 13:37:35,776 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98.
[2023-12-23 13:37:35,777 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98 states, 56 states have (on average 1.375) internal successors, (77), 56 states have internal predecessors, (77), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-23 13:37:35,779 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 157 transitions.
[2023-12-23 13:37:35,780 INFO  L78                 Accepts]: Start accepts. Automaton has 98 states and 157 transitions. Word has length 245
[2023-12-23 13:37:35,780 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:37:35,780 INFO  L495      AbstractCegarLoop]: Abstraction has 98 states and 157 transitions.
[2023-12-23 13:37:35,780 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2023-12-23 13:37:35,781 INFO  L276                IsEmpty]: Start isEmpty. Operand 98 states and 157 transitions.
[2023-12-23 13:37:35,784 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 246
[2023-12-23 13:37:35,784 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:37:35,785 INFO  L195           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 13:37:35,797 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
[2023-12-23 13:37:35,996 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
[2023-12-23 13:37:35,997 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:37:35,997 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:37:35,997 INFO  L85        PathProgramCache]: Analyzing trace with hash -463099530, now seen corresponding path program 1 times
[2023-12-23 13:37:35,998 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:37:35,998 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403498914]
[2023-12-23 13:37:35,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:37:35,999 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
[2023-12-23 13:37:35,999 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:37:36,001 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)
[2023-12-23 13:37:36,003 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
[2023-12-23 13:37:36,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:37:36,302 INFO  L262         TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 13:37:36,308 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:37:36,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked.
[2023-12-23 13:37:36,362 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 13:37:36,362 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:37:36,362 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403498914]
[2023-12-23 13:37:36,364 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [403498914] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 13:37:36,364 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 13:37:36,364 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 13:37:36,364 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518541889]
[2023-12-23 13:37:36,364 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 13:37:36,365 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 13:37:36,365 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:37:36,366 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 13:37:36,366 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 13:37:36,366 INFO  L87              Difference]: Start difference. First operand 98 states and 157 transitions. Second operand  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40)
[2023-12-23 13:37:36,462 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:37:36,462 INFO  L93              Difference]: Finished difference Result 192 states and 307 transitions.
[2023-12-23 13:37:36,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 13:37:36,473 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 245
[2023-12-23 13:37:36,474 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:37:36,475 INFO  L225             Difference]: With dead ends: 192
[2023-12-23 13:37:36,475 INFO  L226             Difference]: Without dead ends: 95
[2023-12-23 13:37:36,476 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 13:37:36,477 INFO  L413           NwaCegarLoop]: 140 mSDtfsCounter, 142 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 13:37:36,477 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 140 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 13:37:36,477 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2023-12-23 13:37:36,492 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95.
[2023-12-23 13:37:36,493 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 53 states have internal predecessors, (67), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-23 13:37:36,496 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 147 transitions.
[2023-12-23 13:37:36,497 INFO  L78                 Accepts]: Start accepts. Automaton has 95 states and 147 transitions. Word has length 245
[2023-12-23 13:37:36,499 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:37:36,499 INFO  L495      AbstractCegarLoop]: Abstraction has 95 states and 147 transitions.
[2023-12-23 13:37:36,500 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40)
[2023-12-23 13:37:36,500 INFO  L276                IsEmpty]: Start isEmpty. Operand 95 states and 147 transitions.
[2023-12-23 13:37:36,506 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 247
[2023-12-23 13:37:36,506 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:37:36,506 INFO  L195           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 13:37:36,520 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
[2023-12-23 13:37:36,717 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
[2023-12-23 13:37:36,719 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:37:36,719 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:37:36,719 INFO  L85        PathProgramCache]: Analyzing trace with hash -766806297, now seen corresponding path program 1 times
[2023-12-23 13:37:36,720 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:37:36,720 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461652389]
[2023-12-23 13:37:36,720 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:37:36,720 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
[2023-12-23 13:37:36,720 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:37:36,724 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)
[2023-12-23 13:37:36,727 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
[2023-12-23 13:37:37,014 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:37:37,033 INFO  L262         TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-23 13:37:37,039 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:37:38,036 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 1060 proven. 123 refuted. 0 times theorem prover too weak. 1937 trivial. 0 not checked.
[2023-12-23 13:37:38,037 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 13:37:39,391 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 13:37:39,391 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461652389]
[2023-12-23 13:37:39,391 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [461652389] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 13:37:39,391 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [465063520]
[2023-12-23 13:37:39,392 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:37:39,392 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 13:37:39,392 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 13:37:39,429 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 13:37:39,438 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-23 13:37:40,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:37:40,311 INFO  L262         TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-23 13:37:40,315 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 13:37:41,086 INFO  L134       CoverageAnalysis]: Checked inductivity of 3120 backedges. 339 proven. 111 refuted. 0 times theorem prover too weak. 2670 trivial. 0 not checked.
[2023-12-23 13:37:41,086 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 13:37:43,323 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [465063520] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 13:37:43,323 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 13:37:43,324 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 11
[2023-12-23 13:37:43,324 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801933889]
[2023-12-23 13:37:43,324 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 13:37:43,325 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-23 13:37:43,325 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 13:37:43,325 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-23 13:37:43,326 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306
[2023-12-23 13:37:43,326 INFO  L87              Difference]: Start difference. First operand 95 states and 147 transitions. Second operand  has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 3 states have call successors, (45), 3 states have call predecessors, (45), 5 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46)
[2023-12-23 13:37:45,837 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 13:37:45,837 INFO  L93              Difference]: Finished difference Result 548 states and 825 transitions.
[2023-12-23 13:37:45,837 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2023-12-23 13:37:45,838 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 3 states have call successors, (45), 3 states have call predecessors, (45), 5 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 246
[2023-12-23 13:37:45,838 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 13:37:45,842 INFO  L225             Difference]: With dead ends: 548
[2023-12-23 13:37:45,842 INFO  L226             Difference]: Without dead ends: 454
[2023-12-23 13:37:45,843 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 524 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=391, Invalid=1091, Unknown=0, NotChecked=0, Total=1482
[2023-12-23 13:37:45,844 INFO  L413           NwaCegarLoop]: 134 mSDtfsCounter, 563 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2023-12-23 13:37:45,845 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 611 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2023-12-23 13:37:45,845 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 454 states.
[2023-12-23 13:37:45,942 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 436.
[2023-12-23 13:37:45,943 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 436 states, 241 states have (on average 1.2240663900414939) internal successors, (295), 243 states have internal predecessors, (295), 184 states have call successors, (184), 10 states have call predecessors, (184), 10 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184)
[2023-12-23 13:37:45,945 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 663 transitions.
[2023-12-23 13:37:45,945 INFO  L78                 Accepts]: Start accepts. Automaton has 436 states and 663 transitions. Word has length 246
[2023-12-23 13:37:45,949 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 13:37:45,950 INFO  L495      AbstractCegarLoop]: Abstraction has 436 states and 663 transitions.
[2023-12-23 13:37:45,951 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 3 states have call successors, (45), 3 states have call predecessors, (45), 5 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46)
[2023-12-23 13:37:45,951 INFO  L276                IsEmpty]: Start isEmpty. Operand 436 states and 663 transitions.
[2023-12-23 13:37:45,953 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 247
[2023-12-23 13:37:45,953 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 13:37:45,953 INFO  L195           NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 13:37:45,967 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
[2023-12-23 13:37:46,174 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2023-12-23 13:37:46,374 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 13:37:46,375 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 13:37:46,376 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 13:37:46,376 INFO  L85        PathProgramCache]: Analyzing trace with hash -1159833307, now seen corresponding path program 1 times
[2023-12-23 13:37:46,376 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 13:37:46,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26546966]
[2023-12-23 13:37:46,377 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 13:37:46,377 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
[2023-12-23 13:37:46,377 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 13:37:46,378 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)
[2023-12-23 13:37:46,402 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
[2023-12-23 13:37:46,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 13:37:46,701 INFO  L262         TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-23 13:37:46,707 INFO  L285         TraceCheckSpWp]: Computing forward predicates...