/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_loopvsstraightlinecode_50-1loop_file-58.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 03:10:32,843 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 03:10:32,895 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-24 03:10:32,898 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 03:10:32,899 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 03:10:32,913 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 03:10:32,913 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 03:10:32,913 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 03:10:32,914 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 03:10:32,914 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 03:10:32,914 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 03:10:32,914 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 03:10:32,915 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 03:10:32,915 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 03:10:32,915 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 03:10:32,915 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 03:10:32,916 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 03:10:32,916 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 03:10:32,916 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 03:10:32,916 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 03:10:32,917 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 03:10:32,920 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 03:10:32,920 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 03:10:32,920 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 03:10:32,922 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 03:10:32,923 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 03:10:32,923 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 03:10:32,923 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 03:10:32,924 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 03:10:32,924 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 03:10:32,925 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 03:10:32,925 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 03:10:32,925 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 03:10:32,925 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 03:10:32,925 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 03:10:32,925 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 03:10:32,925 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 03:10:32,925 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 03:10:32,925 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 03:10:32,926 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 03:10:32,926 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 03:10:32,926 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 03:10:32,926 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 03:10:32,927 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 03:10:32,927 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 03:10:32,927 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 03:10:32,927 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 03:10:33,146 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 03:10:33,164 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 03:10:33,167 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 03:10:33,167 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 03:10:33,168 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 03:10:33,169 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-58.i
[2023-12-24 03:10:34,216 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 03:10:34,405 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 03:10:34,406 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-58.i
[2023-12-24 03:10:34,418 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12525e226/8db4631440dd49e7835c8fda4a2e6cf6/FLAG8cee98b98
[2023-12-24 03:10:34,428 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12525e226/8db4631440dd49e7835c8fda4a2e6cf6
[2023-12-24 03:10:34,430 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 03:10:34,431 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 03:10:34,432 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 03:10:34,432 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 03:10:34,438 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 03:10:34,438 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,439 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4477d55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34, skipping insertion in model container
[2023-12-24 03:10:34,439 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,469 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 03:10:34,605 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_loopvsstraightlinecode_50-1loop_file-58.i[915,928]
[2023-12-24 03:10:34,646 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 03:10:34,657 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 03:10:34,665 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_loopvsstraightlinecode_50-1loop_file-58.i[915,928]
[2023-12-24 03:10:34,684 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 03:10:34,696 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 03:10:34,697 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34 WrapperNode
[2023-12-24 03:10:34,697 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 03:10:34,698 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 03:10:34,698 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 03:10:34,698 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 03:10:34,702 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,713 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,735 INFO  L138                Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 152
[2023-12-24 03:10:34,735 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 03:10:34,736 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 03:10:34,736 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 03:10:34,736 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 03:10:34,746 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,746 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,750 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,767 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].
[2023-12-24 03:10:34,768 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,768 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,779 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,781 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,783 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,784 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,786 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 03:10:34,787 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 03:10:34,787 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 03:10:34,787 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 03:10:34,788 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (1/1) ...
[2023-12-24 03:10:34,792 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 03:10:34,801 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 03:10:34,811 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)
[2023-12-24 03:10:34,833 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
[2023-12-24 03:10:34,840 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 03:10:34,841 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 03:10:34,841 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 03:10:34,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 03:10:34,841 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 03:10:34,841 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 03:10:34,900 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 03:10:34,901 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 03:10:35,185 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 03:10:35,242 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 03:10:35,243 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 03:10:35,243 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:10:35 BoogieIcfgContainer
[2023-12-24 03:10:35,243 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 03:10:35,245 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 03:10:35,245 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 03:10:35,248 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 03:10:35,248 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 03:10:34" (1/3) ...
[2023-12-24 03:10:35,249 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727f00ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:10:35, skipping insertion in model container
[2023-12-24 03:10:35,249 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:10:34" (2/3) ...
[2023-12-24 03:10:35,249 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727f00ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:10:35, skipping insertion in model container
[2023-12-24 03:10:35,249 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:10:35" (3/3) ...
[2023-12-24 03:10:35,250 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-58.i
[2023-12-24 03:10:35,262 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 03:10:35,262 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 03:10:35,307 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 03:10:35,311 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;@1a73ead6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 03:10:35,312 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 03:10:35,315 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 64 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 38 states have internal predecessors, (53), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2023-12-24 03:10:35,327 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2023-12-24 03:10:35,327 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:10:35,327 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:10:35,328 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:10:35,332 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:10:35,333 INFO  L85        PathProgramCache]: Analyzing trace with hash -1485306032, now seen corresponding path program 1 times
[2023-12-24 03:10:35,341 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:10:35,342 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910846640]
[2023-12-24 03:10:35,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:10:35,342 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
[2023-12-24 03:10:35,343 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:10:35,345 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)
[2023-12-24 03:10:35,345 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
[2023-12-24 03:10:35,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:10:35,557 INFO  L262         TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 03:10:35,564 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:10:35,603 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked.
[2023-12-24 03:10:35,604 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 03:10:35,604 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:10:35,604 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910846640]
[2023-12-24 03:10:35,605 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910846640] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 03:10:35,605 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 03:10:35,605 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 03:10:35,606 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941774966]
[2023-12-24 03:10:35,607 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 03:10:35,610 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 03:10:35,610 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:10:35,627 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 03:10:35,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 03:10:35,629 INFO  L87              Difference]: Start difference. First operand  has 64 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 38 states have internal predecessors, (53), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2023-12-24 03:10:35,686 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:10:35,686 INFO  L93              Difference]: Finished difference Result 127 states and 225 transitions.
[2023-12-24 03:10:35,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 03:10:35,688 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 147
[2023-12-24 03:10:35,688 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:10:35,693 INFO  L225             Difference]: With dead ends: 127
[2023-12-24 03:10:35,693 INFO  L226             Difference]: Without dead ends: 62
[2023-12-24 03:10:35,696 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 03:10:35,698 INFO  L413           NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-24 03:10:35,699 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-24 03:10:35,709 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2023-12-24 03:10:35,728 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2023-12-24 03:10:35,730 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2023-12-24 03:10:35,731 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 96 transitions.
[2023-12-24 03:10:35,732 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 96 transitions. Word has length 147
[2023-12-24 03:10:35,732 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:10:35,732 INFO  L495      AbstractCegarLoop]: Abstraction has 62 states and 96 transitions.
[2023-12-24 03:10:35,732 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)
[2023-12-24 03:10:35,733 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 96 transitions.
[2023-12-24 03:10:35,736 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2023-12-24 03:10:35,736 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:10:35,737 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:10:35,742 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
[2023-12-24 03:10:35,938 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
[2023-12-24 03:10:35,938 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:10:35,939 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:10:35,939 INFO  L85        PathProgramCache]: Analyzing trace with hash 661725460, now seen corresponding path program 1 times
[2023-12-24 03:10:35,939 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:10:35,940 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479682552]
[2023-12-24 03:10:35,940 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:10:35,940 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
[2023-12-24 03:10:35,940 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:10:35,942 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)
[2023-12-24 03:10:35,943 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
[2023-12-24 03:10:36,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:10:36,120 INFO  L262         TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 03:10:36,125 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:10:36,471 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 233 proven. 6 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked.
[2023-12-24 03:10:36,471 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 03:10:36,732 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 63 proven. 6 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked.
[2023-12-24 03:10:36,732 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:10:36,735 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479682552]
[2023-12-24 03:10:36,736 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479682552] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 03:10:36,736 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 03:10:36,736 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9
[2023-12-24 03:10:36,736 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978528773]
[2023-12-24 03:10:36,737 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 03:10:36,741 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-24 03:10:36,741 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:10:36,742 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-24 03:10:36,743 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2023-12-24 03:10:36,743 INFO  L87              Difference]: Start difference. First operand 62 states and 96 transitions. Second operand  has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48)
[2023-12-24 03:10:37,451 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:10:37,451 INFO  L93              Difference]: Finished difference Result 239 states and 364 transitions.
[2023-12-24 03:10:37,452 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2023-12-24 03:10:37,452 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 147
[2023-12-24 03:10:37,453 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:10:37,454 INFO  L225             Difference]: With dead ends: 239
[2023-12-24 03:10:37,455 INFO  L226             Difference]: Without dead ends: 178
[2023-12-24 03:10:37,455 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156
[2023-12-24 03:10:37,456 INFO  L413           NwaCegarLoop]: 67 mSDtfsCounter, 159 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-24 03:10:37,456 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 284 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-24 03:10:37,457 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 178 states.
[2023-12-24 03:10:37,477 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 169.
[2023-12-24 03:10:37,478 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 169 states, 95 states have (on average 1.2736842105263158) internal successors, (121), 96 states have internal predecessors, (121), 69 states have call successors, (69), 4 states have call predecessors, (69), 4 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69)
[2023-12-24 03:10:37,480 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions.
[2023-12-24 03:10:37,480 INFO  L78                 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 147
[2023-12-24 03:10:37,481 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:10:37,481 INFO  L495      AbstractCegarLoop]: Abstraction has 169 states and 259 transitions.
[2023-12-24 03:10:37,481 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48)
[2023-12-24 03:10:37,481 INFO  L276                IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions.
[2023-12-24 03:10:37,482 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2023-12-24 03:10:37,483 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:10:37,483 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:10:37,492 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
[2023-12-24 03:10:37,689 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
[2023-12-24 03:10:37,689 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:10:37,690 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:10:37,690 INFO  L85        PathProgramCache]: Analyzing trace with hash -257080753, now seen corresponding path program 1 times
[2023-12-24 03:10:37,690 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:10:37,691 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242842539]
[2023-12-24 03:10:37,691 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:10:37,691 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
[2023-12-24 03:10:37,691 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:10:37,693 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)
[2023-12-24 03:10:37,720 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
[2023-12-24 03:10:37,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:10:37,814 INFO  L262         TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 03:10:37,817 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 03:10:37,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 233 proven. 6 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked.
[2023-12-24 03:10:37,860 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 03:10:37,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 63 proven. 6 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked.
[2023-12-24 03:10:37,961 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 03:10:37,961 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242842539]
[2023-12-24 03:10:37,961 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [242842539] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 03:10:37,961 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 03:10:37,962 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2023-12-24 03:10:37,962 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133189402]
[2023-12-24 03:10:37,962 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 03:10:37,962 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-24 03:10:37,962 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 03:10:37,963 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-24 03:10:37,963 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-24 03:10:37,963 INFO  L87              Difference]: Start difference. First operand 169 states and 259 transitions. Second operand  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-12-24 03:10:38,195 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 03:10:38,195 INFO  L93              Difference]: Finished difference Result 241 states and 365 transitions.
[2023-12-24 03:10:38,195 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-24 03:10:38,196 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 148
[2023-12-24 03:10:38,196 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 03:10:38,197 INFO  L225             Difference]: With dead ends: 241
[2023-12-24 03:10:38,197 INFO  L226             Difference]: Without dead ends: 136
[2023-12-24 03:10:38,198 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132
[2023-12-24 03:10:38,199 INFO  L413           NwaCegarLoop]: 62 mSDtfsCounter, 89 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 03:10:38,199 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 138 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 03:10:38,200 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 136 states.
[2023-12-24 03:10:38,209 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 66.
[2023-12-24 03:10:38,209 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2023-12-24 03:10:38,210 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions.
[2023-12-24 03:10:38,210 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 148
[2023-12-24 03:10:38,210 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 03:10:38,210 INFO  L495      AbstractCegarLoop]: Abstraction has 66 states and 97 transitions.
[2023-12-24 03:10:38,210 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-12-24 03:10:38,211 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions.
[2023-12-24 03:10:38,212 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2023-12-24 03:10:38,212 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 03:10:38,212 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 03:10:38,220 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
[2023-12-24 03:10:38,418 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
[2023-12-24 03:10:38,418 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 03:10:38,420 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 03:10:38,420 INFO  L85        PathProgramCache]: Analyzing trace with hash -1775322977, now seen corresponding path program 1 times
[2023-12-24 03:10:38,420 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 03:10:38,421 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374859566]
[2023-12-24 03:10:38,421 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 03:10:38,421 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
[2023-12-24 03:10:38,421 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 03:10:38,423 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)
[2023-12-24 03:10:38,424 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
[2023-12-24 03:10:38,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 03:10:38,552 INFO  L262         TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 38 conjunts are in the unsatisfiable core
[2023-12-24 03:10:38,557 INFO  L285         TraceCheckSpWp]: Computing forward predicates...