/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-49.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 10:56:35,822 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 10:56:35,915 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 10:56:35,921 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 10:56:35,921 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 10:56:35,949 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 10:56:35,950 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 10:56:35,950 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 10:56:35,950 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 10:56:35,954 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 10:56:35,954 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 10:56:35,955 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 10:56:35,955 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 10:56:35,956 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 10:56:35,956 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 10:56:35,957 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 10:56:35,957 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 10:56:35,957 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 10:56:35,957 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 10:56:35,959 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 10:56:35,959 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 10:56:35,959 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 10:56:35,959 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 10:56:35,960 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 10:56:35,960 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 10:56:35,960 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 10:56:35,960 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 10:56:35,960 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 10:56:35,961 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 10:56:35,961 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 10:56:35,962 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 10:56:35,962 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 10:56:35,962 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 10:56:35,962 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 10:56:35,962 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 10:56:35,962 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 10:56:35,963 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 10:56:35,963 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 10:56:35,963 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 10:56:35,963 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 10:56:35,963 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 10:56:35,963 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 10:56:35,963 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 10:56:35,964 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 10:56:35,964 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 10:56:35,964 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 10:56:35,964 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 10:56:36,190 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 10:56:36,212 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 10:56:36,214 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 10:56:36,215 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 10:56:36,215 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 10:56:36,217 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-49.i
[2023-12-23 10:56:37,404 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 10:56:37,661 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 10:56:37,661 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-49.i
[2023-12-23 10:56:37,677 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62dd35c83/c06546e460494d86bd7172624face1b1/FLAGc37defae6
[2023-12-23 10:56:37,695 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62dd35c83/c06546e460494d86bd7172624face1b1
[2023-12-23 10:56:37,697 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 10:56:37,698 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 10:56:37,701 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 10:56:37,701 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 10:56:37,705 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 10:56:37,706 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:56:37" (1/1) ...
[2023-12-23 10:56:37,707 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d06aabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:37, skipping insertion in model container
[2023-12-23 10:56:37,707 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:56:37" (1/1) ...
[2023-12-23 10:56:37,742 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 10:56:37,866 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-49.i[919,932]
[2023-12-23 10:56:37,922 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 10:56:37,938 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 10:56:37,951 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-49.i[919,932]
[2023-12-23 10:56:37,983 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 10:56:37,999 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 10:56:38,000 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38 WrapperNode
[2023-12-23 10:56:38,000 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 10:56:38,001 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 10:56:38,001 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 10:56:38,001 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 10:56:38,006 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,018 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,048 INFO  L138                Inliner]: procedures = 27, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197
[2023-12-23 10:56:38,049 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 10:56:38,050 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 10:56:38,050 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 10:56:38,050 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 10:56:38,060 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,060 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,066 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,080 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 10:56:38,080 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,080 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,095 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,098 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,104 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,106 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,125 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 10:56:38,126 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 10:56:38,126 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 10:56:38,126 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 10:56:38,127 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (1/1) ...
[2023-12-23 10:56:38,132 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 10:56:38,146 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 10:56:38,165 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 10:56:38,169 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 10:56:38,189 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 10:56:38,189 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 10:56:38,189 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 10:56:38,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 10:56:38,189 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 10:56:38,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 10:56:38,259 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 10:56:38,263 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 10:56:40,291 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 10:56:40,372 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 10:56:40,372 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 10:56:40,373 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:56:40 BoogieIcfgContainer
[2023-12-23 10:56:40,373 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 10:56:40,375 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 10:56:40,375 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 10:56:40,377 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 10:56:40,378 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:56:37" (1/3) ...
[2023-12-23 10:56:40,379 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c7c4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:56:40, skipping insertion in model container
[2023-12-23 10:56:40,379 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:56:38" (2/3) ...
[2023-12-23 10:56:40,379 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c7c4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:56:40, skipping insertion in model container
[2023-12-23 10:56:40,380 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:56:40" (3/3) ...
[2023-12-23 10:56:40,381 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-49.i
[2023-12-23 10:56:40,399 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 10:56:40,399 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 10:56:40,438 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 10:56:40,443 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;@6e9324fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 10:56:40,443 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 10:56:40,449 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 79 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 49 states have internal predecessors, (71), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2023-12-23 10:56:40,464 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2023-12-23 10:56:40,465 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 10:56:40,466 INFO  L195           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:40,466 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 10:56:40,470 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 10:56:40,470 INFO  L85        PathProgramCache]: Analyzing trace with hash 732849283, now seen corresponding path program 1 times
[2023-12-23 10:56:40,482 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 10:56:40,482 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606457245]
[2023-12-23 10:56:40,483 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 10:56:40,483 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 10:56:40,483 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 10:56:40,492 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 10:56:40,497 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 10:56:41,058 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 10:56:41,077 INFO  L262         TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 10:56:41,086 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 10:56:41,130 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 734 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked.
[2023-12-23 10:56:41,130 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 10:56:41,131 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 10:56:41,131 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606457245]
[2023-12-23 10:56:41,131 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606457245] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 10:56:41,132 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 10:56:41,132 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 10:56:41,133 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678788370]
[2023-12-23 10:56:41,134 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 10:56:41,138 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 10:56:41,138 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 10:56:41,162 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 10:56:41,163 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 10:56:41,166 INFO  L87              Difference]: Start difference. First operand  has 79 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 49 states have internal predecessors, (71), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)
[2023-12-23 10:56:41,271 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 10:56:41,272 INFO  L93              Difference]: Finished difference Result 154 states and 278 transitions.
[2023-12-23 10:56:41,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 10:56:41,282 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 177
[2023-12-23 10:56:41,282 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 10:56:41,288 INFO  L225             Difference]: With dead ends: 154
[2023-12-23 10:56:41,289 INFO  L226             Difference]: Without dead ends: 76
[2023-12-23 10:56:41,292 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 176 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 10:56:41,295 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 10:56:41,296 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 10:56:41,309 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2023-12-23 10:56:41,331 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76.
[2023-12-23 10:56:41,332 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 76 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2023-12-23 10:56:41,334 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 119 transitions.
[2023-12-23 10:56:41,335 INFO  L78                 Accepts]: Start accepts. Automaton has 76 states and 119 transitions. Word has length 177
[2023-12-23 10:56:41,336 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 10:56:41,336 INFO  L495      AbstractCegarLoop]: Abstraction has 76 states and 119 transitions.
[2023-12-23 10:56:41,336 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)
[2023-12-23 10:56:41,336 INFO  L276                IsEmpty]: Start isEmpty. Operand 76 states and 119 transitions.
[2023-12-23 10:56:41,340 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2023-12-23 10:56:41,340 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 10:56:41,340 INFO  L195           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:41,354 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 10:56:41,541 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 10:56:41,542 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 10:56:41,542 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 10:56:41,543 INFO  L85        PathProgramCache]: Analyzing trace with hash -1098108857, now seen corresponding path program 1 times
[2023-12-23 10:56:41,544 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 10:56:41,544 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747638255]
[2023-12-23 10:56:41,544 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 10:56:41,544 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 10:56:41,544 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 10:56:41,546 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 10:56:41,551 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 10:56:41,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 10:56:41,981 INFO  L262         TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 10:56:41,988 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 10:56:42,464 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked.
[2023-12-23 10:56:42,465 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 10:56:42,465 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 10:56:42,465 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747638255]
[2023-12-23 10:56:42,465 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747638255] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 10:56:42,466 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 10:56:42,466 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 10:56:42,466 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335569644]
[2023-12-23 10:56:42,466 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 10:56:42,467 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 10:56:42,468 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 10:56:42,468 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 10:56:42,469 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 10:56:42,469 INFO  L87              Difference]: Start difference. First operand 76 states and 119 transitions. Second operand  has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28)
[2023-12-23 10:56:42,945 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 10:56:42,945 INFO  L93              Difference]: Finished difference Result 240 states and 379 transitions.
[2023-12-23 10:56:42,953 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 10:56:42,954 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 177
[2023-12-23 10:56:42,955 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 10:56:42,958 INFO  L225             Difference]: With dead ends: 240
[2023-12-23 10:56:42,958 INFO  L226             Difference]: Without dead ends: 165
[2023-12-23 10:56:42,959 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 10:56:42,960 INFO  L413           NwaCegarLoop]: 114 mSDtfsCounter, 108 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-23 10:56:42,960 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 357 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-23 10:56:42,961 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 165 states.
[2023-12-23 10:56:42,992 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 130.
[2023-12-23 10:56:42,993 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 130 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2023-12-23 10:56:42,995 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 201 transitions.
[2023-12-23 10:56:42,995 INFO  L78                 Accepts]: Start accepts. Automaton has 130 states and 201 transitions. Word has length 177
[2023-12-23 10:56:42,996 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 10:56:42,996 INFO  L495      AbstractCegarLoop]: Abstraction has 130 states and 201 transitions.
[2023-12-23 10:56:42,996 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28)
[2023-12-23 10:56:42,996 INFO  L276                IsEmpty]: Start isEmpty. Operand 130 states and 201 transitions.
[2023-12-23 10:56:42,999 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 179
[2023-12-23 10:56:42,999 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 10:56:42,999 INFO  L195           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:43,017 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-23 10:56:43,214 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 10:56:43,215 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 10:56:43,215 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 10:56:43,215 INFO  L85        PathProgramCache]: Analyzing trace with hash -351513308, now seen corresponding path program 1 times
[2023-12-23 10:56:43,216 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 10:56:43,216 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312368377]
[2023-12-23 10:56:43,216 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 10:56:43,217 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 10:56:43,217 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 10:56:43,218 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 10:56:43,247 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 10:56:43,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 10:56:43,631 INFO  L262         TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 10:56:43,636 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 10:56:44,024 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked.
[2023-12-23 10:56:44,025 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 10:56:44,025 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 10:56:44,025 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312368377]
[2023-12-23 10:56:44,025 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [312368377] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 10:56:44,026 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 10:56:44,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 10:56:44,026 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552442031]
[2023-12-23 10:56:44,026 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 10:56:44,027 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 10:56:44,027 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 10:56:44,027 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 10:56:44,028 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 10:56:44,028 INFO  L87              Difference]: Start difference. First operand 130 states and 201 transitions. Second operand  has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28)
[2023-12-23 10:56:44,459 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 10:56:44,459 INFO  L93              Difference]: Finished difference Result 309 states and 480 transitions.
[2023-12-23 10:56:44,460 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 10:56:44,460 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 178
[2023-12-23 10:56:44,461 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 10:56:44,463 INFO  L225             Difference]: With dead ends: 309
[2023-12-23 10:56:44,463 INFO  L226             Difference]: Without dead ends: 231
[2023-12-23 10:56:44,464 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 10:56:44,465 INFO  L413           NwaCegarLoop]: 150 mSDtfsCounter, 86 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-23 10:56:44,465 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 380 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-23 10:56:44,466 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 231 states.
[2023-12-23 10:56:44,511 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 216.
[2023-12-23 10:56:44,512 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 216 states, 128 states have (on average 1.3203125) internal successors, (169), 128 states have internal predecessors, (169), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2023-12-23 10:56:44,514 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 337 transitions.
[2023-12-23 10:56:44,514 INFO  L78                 Accepts]: Start accepts. Automaton has 216 states and 337 transitions. Word has length 178
[2023-12-23 10:56:44,515 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 10:56:44,515 INFO  L495      AbstractCegarLoop]: Abstraction has 216 states and 337 transitions.
[2023-12-23 10:56:44,515 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28)
[2023-12-23 10:56:44,515 INFO  L276                IsEmpty]: Start isEmpty. Operand 216 states and 337 transitions.
[2023-12-23 10:56:44,518 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 179
[2023-12-23 10:56:44,518 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 10:56:44,518 INFO  L195           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:44,538 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 10:56:44,736 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 10:56:44,737 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 10:56:44,737 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 10:56:44,738 INFO  L85        PathProgramCache]: Analyzing trace with hash -1031571678, now seen corresponding path program 1 times
[2023-12-23 10:56:44,738 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 10:56:44,738 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769522363]
[2023-12-23 10:56:44,739 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 10:56:44,739 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 10:56:44,739 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 10:56:44,740 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 10:56:44,743 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 10:56:45,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 10:56:45,165 INFO  L262         TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-23 10:56:45,173 INFO  L285         TraceCheckSpWp]: Computing forward predicates...