/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-pe-co_file-5.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 09:45:32,976 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 09:45:33,039 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 09:45:33,042 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 09:45:33,043 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 09:45:33,062 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 09:45:33,063 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 09:45:33,063 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 09:45:33,063 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 09:45:33,064 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 09:45:33,064 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 09:45:33,064 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 09:45:33,064 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 09:45:33,065 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 09:45:33,065 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 09:45:33,065 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 09:45:33,065 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 09:45:33,066 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 09:45:33,066 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 09:45:33,066 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 09:45:33,066 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 09:45:33,067 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 09:45:33,067 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 09:45:33,067 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 09:45:33,067 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 09:45:33,067 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 09:45:33,067 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 09:45:33,068 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 09:45:33,068 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 09:45:33,068 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 09:45:33,068 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 09:45:33,068 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 09:45:33,068 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 09:45:33,068 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 09:45:33,068 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 09:45:33,069 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 09:45:33,069 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 09:45:33,069 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 09:45:33,069 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 09:45:33,069 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 09:45:33,069 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 09:45:33,070 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 09:45:33,070 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 09:45:33,070 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 09:45:33,070 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 09:45:33,070 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 09:45:33,070 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 09:45:33,233 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 09:45:33,248 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 09:45:33,249 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 09:45:33,250 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 09:45:33,253 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 09:45:33,254 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-5.i
[2023-12-23 09:45:34,187 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 09:45:34,357 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 09:45:34,357 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-5.i
[2023-12-23 09:45:34,364 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aef08086c/8601793cf16d48be95c6af7ed5aa06cd/FLAG4c230c88c
[2023-12-23 09:45:34,373 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aef08086c/8601793cf16d48be95c6af7ed5aa06cd
[2023-12-23 09:45:34,374 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 09:45:34,375 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 09:45:34,376 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 09:45:34,376 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 09:45:34,379 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 09:45:34,379 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,380 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257d121b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34, skipping insertion in model container
[2023-12-23 09:45:34,380 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,406 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 09:45:34,511 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-pe-co_file-5.i[918,931]
[2023-12-23 09:45:34,561 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 09:45:34,571 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 09:45:34,578 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-pe-co_file-5.i[918,931]
[2023-12-23 09:45:34,607 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 09:45:34,623 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 09:45:34,623 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34 WrapperNode
[2023-12-23 09:45:34,623 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 09:45:34,624 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 09:45:34,624 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 09:45:34,624 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 09:45:34,628 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,646 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,668 INFO  L138                Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197
[2023-12-23 09:45:34,669 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 09:45:34,669 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 09:45:34,669 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 09:45:34,669 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 09:45:34,676 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,676 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,680 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,688 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 09:45:34,688 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,689 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,703 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,705 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,707 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,708 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,711 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 09:45:34,711 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 09:45:34,711 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 09:45:34,711 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 09:45:34,728 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (1/1) ...
[2023-12-23 09:45:34,733 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 09:45:34,742 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 09:45:34,752 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 09:45:34,758 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 09:45:34,771 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 09:45:34,771 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 09:45:34,771 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 09:45:34,771 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 09:45:34,771 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 09:45:34,772 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 09:45:34,847 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 09:45:34,848 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 09:45:35,610 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 09:45:35,653 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 09:45:35,653 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 09:45:35,653 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:45:35 BoogieIcfgContainer
[2023-12-23 09:45:35,654 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 09:45:35,655 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 09:45:35,655 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 09:45:35,657 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 09:45:35,658 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:45:34" (1/3) ...
[2023-12-23 09:45:35,658 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6ce5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:45:35, skipping insertion in model container
[2023-12-23 09:45:35,658 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:45:34" (2/3) ...
[2023-12-23 09:45:35,658 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6ce5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:45:35, skipping insertion in model container
[2023-12-23 09:45:35,658 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:45:35" (3/3) ...
[2023-12-23 09:45:35,659 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-5.i
[2023-12-23 09:45:35,671 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 09:45:35,672 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 09:45:35,702 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 09:45:35,706 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;@6ebde674, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 09:45:35,706 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 09:45:35,709 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 79 states, 50 states have (on average 1.48) internal successors, (74), 51 states have internal predecessors, (74), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 09:45:35,724 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2023-12-23 09:45:35,725 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:45:35,725 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:45:35,726 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:45:35,731 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:45:35,731 INFO  L85        PathProgramCache]: Analyzing trace with hash -767070508, now seen corresponding path program 1 times
[2023-12-23 09:45:35,742 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:45:35,742 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323831199]
[2023-12-23 09:45:35,742 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:45:35,743 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 09:45:35,743 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:45:35,744 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 09:45:35,745 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 09:45:36,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:45:36,049 INFO  L262         TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 09:45:36,056 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 09:45:36,116 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 666 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked.
[2023-12-23 09:45:36,116 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 09:45:36,117 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 09:45:36,117 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323831199]
[2023-12-23 09:45:36,117 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323831199] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 09:45:36,118 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 09:45:36,118 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 09:45:36,119 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848630035]
[2023-12-23 09:45:36,121 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 09:45:36,139 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 09:45:36,139 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 09:45:36,165 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 09:45:36,167 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 09:45:36,169 INFO  L87              Difference]: Start difference. First operand  has 79 states, 50 states have (on average 1.48) internal successors, (74), 51 states have internal predecessors, (74), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 09:45:36,349 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 09:45:36,349 INFO  L93              Difference]: Finished difference Result 155 states and 276 transitions.
[2023-12-23 09:45:36,360 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 09:45:36,362 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 168
[2023-12-23 09:45:36,362 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 09:45:36,369 INFO  L225             Difference]: With dead ends: 155
[2023-12-23 09:45:36,369 INFO  L226             Difference]: Without dead ends: 77
[2023-12-23 09:45:36,372 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 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 09:45:36,375 INFO  L413           NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-23 09:45:36,376 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-23 09:45:36,387 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2023-12-23 09:45:36,412 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77.
[2023-12-23 09:45:36,413 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 77 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 49 states have internal predecessors, (67), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-23 09:45:36,419 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 119 transitions.
[2023-12-23 09:45:36,420 INFO  L78                 Accepts]: Start accepts. Automaton has 77 states and 119 transitions. Word has length 168
[2023-12-23 09:45:36,421 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 09:45:36,421 INFO  L495      AbstractCegarLoop]: Abstraction has 77 states and 119 transitions.
[2023-12-23 09:45:36,422 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-23 09:45:36,422 INFO  L276                IsEmpty]: Start isEmpty. Operand 77 states and 119 transitions.
[2023-12-23 09:45:36,430 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 170
[2023-12-23 09:45:36,430 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:45:36,430 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:45:36,442 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
[2023-12-23 09:45:36,640 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 09:45:36,640 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:45:36,641 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:45:36,641 INFO  L85        PathProgramCache]: Analyzing trace with hash 1872753782, now seen corresponding path program 1 times
[2023-12-23 09:45:36,642 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:45:36,642 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606325977]
[2023-12-23 09:45:36,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:45:36,642 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 09:45:36,642 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:45:36,644 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 09:45:36,645 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 09:45:36,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:45:36,951 INFO  L262         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-23 09:45:36,957 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 09:45:37,909 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 604 proven. 96 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked.
[2023-12-23 09:45:37,909 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 09:45:38,096 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 09:45:38,096 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606325977]
[2023-12-23 09:45:38,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [606325977] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 09:45:38,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1068121921]
[2023-12-23 09:45:38,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:45:38,097 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 09:45:38,097 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 09:45:38,133 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 09:45:38,149 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2023-12-23 09:45:39,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:45:39,923 INFO  L262         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-12-23 09:45:39,928 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 09:45:41,962 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 564 proven. 165 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked.
[2023-12-23 09:45:41,962 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 09:45:42,857 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1068121921] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 09:45:42,857 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 09:45:42,857 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 18
[2023-12-23 09:45:42,858 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947224588]
[2023-12-23 09:45:42,858 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 09:45:42,859 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2023-12-23 09:45:42,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 09:45:42,860 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2023-12-23 09:45:42,860 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506
[2023-12-23 09:45:42,860 INFO  L87              Difference]: Start difference. First operand 77 states and 119 transitions. Second operand  has 19 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 16 states have internal predecessors, (91), 6 states have call successors, (51), 6 states have call predecessors, (51), 8 states have return successors, (52), 6 states have call predecessors, (52), 6 states have call successors, (52)
[2023-12-23 09:45:54,560 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 09:46:00,746 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 09:46:11,218 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 09:46:21,293 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 09:46:27,721 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 09:46:28,766 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 09:46:33,367 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 09:46:40,434 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 09:46:46,577 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 09:46:54,020 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2023-12-23 09:46:54,072 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 09:46:54,073 INFO  L93              Difference]: Finished difference Result 486 states and 714 transitions.
[2023-12-23 09:46:54,078 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. 
[2023-12-23 09:46:54,079 INFO  L78                 Accepts]: Start accepts. Automaton has  has 19 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 16 states have internal predecessors, (91), 6 states have call successors, (51), 6 states have call predecessors, (51), 8 states have return successors, (52), 6 states have call predecessors, (52), 6 states have call successors, (52) Word has length 169
[2023-12-23 09:46:54,079 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 09:46:54,082 INFO  L225             Difference]: With dead ends: 486
[2023-12-23 09:46:54,082 INFO  L226             Difference]: Without dead ends: 410
[2023-12-23 09:46:54,084 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1157 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=951, Invalid=3209, Unknown=0, NotChecked=0, Total=4160
[2023-12-23 09:46:54,085 INFO  L413           NwaCegarLoop]: 131 mSDtfsCounter, 663 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 143 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.8s IncrementalHoareTripleChecker+Time
[2023-12-23 09:46:54,085 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 839 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1021 Invalid, 3 Unknown, 0 Unchecked, 55.8s Time]
[2023-12-23 09:46:54,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 410 states.
[2023-12-23 09:46:54,132 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 351.
[2023-12-23 09:46:54,133 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 351 states, 228 states have (on average 1.3201754385964912) internal successors, (301), 231 states have internal predecessors, (301), 106 states have call successors, (106), 16 states have call predecessors, (106), 16 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106)
[2023-12-23 09:46:54,135 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 513 transitions.
[2023-12-23 09:46:54,135 INFO  L78                 Accepts]: Start accepts. Automaton has 351 states and 513 transitions. Word has length 169
[2023-12-23 09:46:54,137 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 09:46:54,137 INFO  L495      AbstractCegarLoop]: Abstraction has 351 states and 513 transitions.
[2023-12-23 09:46:54,137 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 4.7894736842105265) internal successors, (91), 16 states have internal predecessors, (91), 6 states have call successors, (51), 6 states have call predecessors, (51), 8 states have return successors, (52), 6 states have call predecessors, (52), 6 states have call successors, (52)
[2023-12-23 09:46:54,137 INFO  L276                IsEmpty]: Start isEmpty. Operand 351 states and 513 transitions.
[2023-12-23 09:46:54,141 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 170
[2023-12-23 09:46:54,141 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:46:54,143 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:46:54,159 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2023-12-23 09:46:54,365 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 09:46:54,552 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 09:46:54,553 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:46:54,553 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:46:54,553 INFO  L85        PathProgramCache]: Analyzing trace with hash 1479726772, now seen corresponding path program 1 times
[2023-12-23 09:46:54,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:46:54,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023533204]
[2023-12-23 09:46:54,554 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:46:54,554 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 09:46:54,554 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:46:54,555 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)
[2023-12-23 09:46:54,557 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
[2023-12-23 09:46:54,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:46:54,868 INFO  L262         TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 36 conjunts are in the unsatisfiable core
[2023-12-23 09:46:54,873 INFO  L285         TraceCheckSpWp]: Computing forward predicates...