/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-cn_file-68.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 08:49:00,322 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 08:49:00,405 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 08:49:00,409 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 08:49:00,410 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 08:49:00,436 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 08:49:00,437 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 08:49:00,437 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 08:49:00,438 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 08:49:00,441 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 08:49:00,441 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 08:49:00,442 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 08:49:00,442 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 08:49:00,443 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 08:49:00,444 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 08:49:00,444 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 08:49:00,444 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 08:49:00,444 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 08:49:00,445 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 08:49:00,445 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 08:49:00,445 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 08:49:00,445 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 08:49:00,446 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 08:49:00,446 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 08:49:00,446 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 08:49:00,446 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 08:49:00,446 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 08:49:00,447 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 08:49:00,447 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 08:49:00,447 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 08:49:00,448 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 08:49:00,448 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 08:49:00,448 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 08:49:00,448 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 08:49:00,448 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 08:49:00,449 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 08:49:00,449 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 08:49:00,449 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 08:49:00,449 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 08:49:00,449 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 08:49:00,449 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 08:49:00,450 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 08:49:00,450 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 08:49:00,450 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 08:49:00,450 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 08:49:00,450 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 08:49:00,451 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 08:49:00,693 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 08:49:00,715 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 08:49:00,718 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 08:49:00,718 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 08:49:00,719 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 08:49:00,720 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-68.i
[2023-12-23 08:49:01,842 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 08:49:02,111 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 08:49:02,112 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-68.i
[2023-12-23 08:49:02,121 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c47d244/7c33d8b359a64854a4775998dc51fefe/FLAG5b924d4d5
[2023-12-23 08:49:02,138 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c47d244/7c33d8b359a64854a4775998dc51fefe
[2023-12-23 08:49:02,140 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 08:49:02,142 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 08:49:02,144 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 08:49:02,144 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 08:49:02,149 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 08:49:02,149 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,150 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223bc9a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02, skipping insertion in model container
[2023-12-23 08:49:02,150 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,192 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 08:49:02,313 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-cn_file-68.i[919,932]
[2023-12-23 08:49:02,384 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 08:49:02,420 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 08:49:02,430 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-cn_file-68.i[919,932]
[2023-12-23 08:49:02,460 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 08:49:02,476 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 08:49:02,477 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02 WrapperNode
[2023-12-23 08:49:02,477 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 08:49:02,478 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 08:49:02,479 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 08:49:02,479 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 08:49:02,484 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,508 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,558 INFO  L138                Inliner]: procedures = 27, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 220
[2023-12-23 08:49:02,558 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 08:49:02,559 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 08:49:02,559 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 08:49:02,559 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 08:49:02,569 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,569 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,574 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,588 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 08:49:02,589 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,589 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,612 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,615 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,618 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,619 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,636 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 08:49:02,637 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 08:49:02,637 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 08:49:02,637 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 08:49:02,638 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (1/1) ...
[2023-12-23 08:49:02,645 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 08:49:02,654 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 08:49:02,670 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 08:49:02,692 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 08:49:02,704 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 08:49:02,705 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 08:49:02,705 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 08:49:02,706 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 08:49:02,706 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 08:49:02,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 08:49:02,813 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 08:49:02,814 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 08:49:07,861 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 08:49:07,900 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 08:49:07,900 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 08:49:07,901 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:49:07 BoogieIcfgContainer
[2023-12-23 08:49:07,901 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 08:49:07,903 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 08:49:07,903 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 08:49:07,905 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 08:49:07,905 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 08:49:02" (1/3) ...
[2023-12-23 08:49:07,906 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f15572b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:49:07, skipping insertion in model container
[2023-12-23 08:49:07,906 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:49:02" (2/3) ...
[2023-12-23 08:49:07,906 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f15572b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:49:07, skipping insertion in model container
[2023-12-23 08:49:07,907 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:49:07" (3/3) ...
[2023-12-23 08:49:07,908 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-68.i
[2023-12-23 08:49:07,922 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 08:49:07,923 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 08:49:07,964 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 08:49:07,969 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;@6c1df3d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 08:49:07,969 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 08:49:07,974 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 94 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 56 states have internal predecessors, (78), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2023-12-23 08:49:07,989 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 223
[2023-12-23 08:49:07,989 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:49:07,990 INFO  L195           NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:07,990 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:49:07,994 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:49:07,994 INFO  L85        PathProgramCache]: Analyzing trace with hash 1438676732, now seen corresponding path program 1 times
[2023-12-23 08:49:08,005 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:49:08,005 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513707049]
[2023-12-23 08:49:08,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:49:08,006 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 08:49:08,006 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:49:08,008 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 08:49:08,009 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 08:49:08,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:49:08,879 INFO  L262         TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 08:49:08,891 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:49:08,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 2520 backedges. 1174 proven. 0 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked.
[2023-12-23 08:49:08,944 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:49:08,945 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:49:08,945 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513707049]
[2023-12-23 08:49:08,946 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [513707049] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:49:08,946 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:49:08,946 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 08:49:08,948 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977537468]
[2023-12-23 08:49:08,950 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:49:08,954 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 08:49:08,955 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:49:08,994 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 08:49:08,995 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 08:49:08,997 INFO  L87              Difference]: Start difference. First operand  has 94 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 56 states have internal predecessors, (78), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2023-12-23 08:49:09,231 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:49:09,231 INFO  L93              Difference]: Finished difference Result 185 states and 334 transitions.
[2023-12-23 08:49:09,244 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 08:49:09,246 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 222
[2023-12-23 08:49:09,246 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:49:09,252 INFO  L225             Difference]: With dead ends: 185
[2023-12-23 08:49:09,253 INFO  L226             Difference]: Without dead ends: 92
[2023-12-23 08:49:09,256 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 221 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 08:49:09,259 INFO  L413           NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-23 08:49:09,259 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-23 08:49:09,270 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2023-12-23 08:49:09,293 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2023-12-23 08:49:09,295 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 54 states have internal predecessors, (73), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2023-12-23 08:49:09,297 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 145 transitions.
[2023-12-23 08:49:09,298 INFO  L78                 Accepts]: Start accepts. Automaton has 92 states and 145 transitions. Word has length 222
[2023-12-23 08:49:09,299 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:49:09,299 INFO  L495      AbstractCegarLoop]: Abstraction has 92 states and 145 transitions.
[2023-12-23 08:49:09,299 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2023-12-23 08:49:09,300 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 145 transitions.
[2023-12-23 08:49:09,304 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 223
[2023-12-23 08:49:09,304 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:49:09,304 INFO  L195           NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:09,327 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 08:49:09,520 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 08:49:09,521 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:49:09,521 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:49:09,522 INFO  L85        PathProgramCache]: Analyzing trace with hash -402857220, now seen corresponding path program 1 times
[2023-12-23 08:49:09,523 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:49:09,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724278249]
[2023-12-23 08:49:09,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:49:09,523 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 08:49:09,523 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:49:09,524 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 08:49:09,525 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 08:49:10,387 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:49:10,416 INFO  L262         TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-23 08:49:10,424 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:49:13,886 INFO  L134       CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked.
[2023-12-23 08:49:13,886 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:49:13,886 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:49:13,887 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724278249]
[2023-12-23 08:49:13,887 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724278249] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:49:13,887 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:49:13,887 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-23 08:49:13,887 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376829679]
[2023-12-23 08:49:13,887 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:49:13,891 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 08:49:13,891 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:49:13,892 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 08:49:13,893 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2023-12-23 08:49:13,893 INFO  L87              Difference]: Start difference. First operand 92 states and 145 transitions. Second operand  has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36)
[2023-12-23 08:49:20,014 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:49:20,015 INFO  L93              Difference]: Finished difference Result 392 states and 617 transitions.
[2023-12-23 08:49:20,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-23 08:49:20,028 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 222
[2023-12-23 08:49:20,030 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:49:20,033 INFO  L225             Difference]: With dead ends: 392
[2023-12-23 08:49:20,033 INFO  L226             Difference]: Without dead ends: 301
[2023-12-23 08:49:20,035 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156
[2023-12-23 08:49:20,036 INFO  L413           NwaCegarLoop]: 231 mSDtfsCounter, 384 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2023-12-23 08:49:20,036 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 668 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2023-12-23 08:49:20,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 301 states.
[2023-12-23 08:49:20,082 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 159.
[2023-12-23 08:49:20,083 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 159 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 84 states have internal predecessors, (107), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72)
[2023-12-23 08:49:20,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 251 transitions.
[2023-12-23 08:49:20,085 INFO  L78                 Accepts]: Start accepts. Automaton has 159 states and 251 transitions. Word has length 222
[2023-12-23 08:49:20,086 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:49:20,086 INFO  L495      AbstractCegarLoop]: Abstraction has 159 states and 251 transitions.
[2023-12-23 08:49:20,086 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36)
[2023-12-23 08:49:20,087 INFO  L276                IsEmpty]: Start isEmpty. Operand 159 states and 251 transitions.
[2023-12-23 08:49:20,090 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 223
[2023-12-23 08:49:20,090 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:49:20,090 INFO  L195           NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:20,113 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 08:49:20,311 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 08:49:20,311 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:49:20,312 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:49:20,312 INFO  L85        PathProgramCache]: Analyzing trace with hash -1991205122, now seen corresponding path program 1 times
[2023-12-23 08:49:20,313 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:49:20,314 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448437546]
[2023-12-23 08:49:20,314 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:49:20,314 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 08:49:20,314 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:49:20,315 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 08:49:20,325 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 08:49:21,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:49:21,172 INFO  L262         TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 08:49:21,178 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:49:21,463 INFO  L134       CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked.
[2023-12-23 08:49:21,464 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 08:49:21,464 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:49:21,464 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448437546]
[2023-12-23 08:49:21,464 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448437546] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 08:49:21,464 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 08:49:21,465 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 08:49:21,465 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550208943]
[2023-12-23 08:49:21,465 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 08:49:21,466 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 08:49:21,466 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 08:49:21,467 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 08:49:21,467 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 08:49:21,467 INFO  L87              Difference]: Start difference. First operand 159 states and 251 transitions. Second operand  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36)
[2023-12-23 08:49:22,173 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 08:49:22,174 INFO  L93              Difference]: Finished difference Result 250 states and 395 transitions.
[2023-12-23 08:49:22,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 08:49:22,188 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 222
[2023-12-23 08:49:22,189 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 08:49:22,191 INFO  L225             Difference]: With dead ends: 250
[2023-12-23 08:49:22,191 INFO  L226             Difference]: Without dead ends: 159
[2023-12-23 08:49:22,192 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 08:49:22,193 INFO  L413           NwaCegarLoop]: 133 mSDtfsCounter, 167 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-23 08:49:22,194 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 240 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-23 08:49:22,194 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 159 states.
[2023-12-23 08:49:22,223 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159.
[2023-12-23 08:49:22,224 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 159 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 84 states have internal predecessors, (106), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72)
[2023-12-23 08:49:22,225 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 250 transitions.
[2023-12-23 08:49:22,226 INFO  L78                 Accepts]: Start accepts. Automaton has 159 states and 250 transitions. Word has length 222
[2023-12-23 08:49:22,227 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 08:49:22,227 INFO  L495      AbstractCegarLoop]: Abstraction has 159 states and 250 transitions.
[2023-12-23 08:49:22,228 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36)
[2023-12-23 08:49:22,228 INFO  L276                IsEmpty]: Start isEmpty. Operand 159 states and 250 transitions.
[2023-12-23 08:49:22,234 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 224
[2023-12-23 08:49:22,234 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 08:49:22,234 INFO  L195           NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:49:22,260 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 08:49:22,460 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 08:49:22,460 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 08:49:22,461 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 08:49:22,461 INFO  L85        PathProgramCache]: Analyzing trace with hash -1712806482, now seen corresponding path program 1 times
[2023-12-23 08:49:22,461 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 08:49:22,462 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311867544]
[2023-12-23 08:49:22,462 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:49:22,462 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 08:49:22,462 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 08:49:22,468 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 08:49:22,470 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 08:49:23,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:49:23,306 INFO  L262         TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-12-23 08:49:23,316 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 08:49:32,823 INFO  L134       CoverageAnalysis]: Checked inductivity of 2520 backedges. 681 proven. 186 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked.
[2023-12-23 08:49:32,823 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 08:49:36,477 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 08:49:36,478 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311867544]
[2023-12-23 08:49:36,478 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [311867544] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 08:49:36,478 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [616037281]
[2023-12-23 08:49:36,478 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 08:49:36,478 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 08:49:36,479 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 08:49:36,531 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 08:49:36,535 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2023-12-23 08:49:38,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 08:49:38,712 INFO  L262         TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-23 08:49:38,718 INFO  L285         TraceCheckSpWp]: Computing forward predicates...