/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_operatoramount_amount50_file-98.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 11:24:23,492 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 11:24:23,562 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 11:24:23,565 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 11:24:23,565 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 11:24:23,581 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 11:24:23,582 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 11:24:23,582 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 11:24:23,582 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 11:24:23,583 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 11:24:23,583 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 11:24:23,583 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 11:24:23,584 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 11:24:23,584 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 11:24:23,584 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 11:24:23,584 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 11:24:23,585 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 11:24:23,585 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 11:24:23,585 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 11:24:23,585 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 11:24:23,585 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 11:24:23,586 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 11:24:23,586 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 11:24:23,586 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 11:24:23,586 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 11:24:23,587 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 11:24:23,587 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 11:24:23,587 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 11:24:23,587 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 11:24:23,587 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 11:24:23,588 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 11:24:23,588 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 11:24:23,588 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 11:24:23,588 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 11:24:23,588 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 11:24:23,589 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 11:24:23,589 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 11:24:23,589 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 11:24:23,589 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 11:24:23,589 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 11:24:23,589 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 11:24:23,589 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 11:24:23,590 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 11:24:23,590 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 11:24:23,590 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 11:24:23,590 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 11:24:23,590 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 11:24:23,722 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 11:24:23,734 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 11:24:23,736 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 11:24:23,737 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 11:24:23,737 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 11:24:23,738 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-98.i
[2023-12-24 11:24:24,725 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 11:24:24,867 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 11:24:24,868 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-98.i
[2023-12-24 11:24:24,875 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d8c316b/d887651dbaa4460094641c764d73ebe7/FLAGf3d16373b
[2023-12-24 11:24:24,886 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d8c316b/d887651dbaa4460094641c764d73ebe7
[2023-12-24 11:24:24,888 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 11:24:24,889 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 11:24:24,889 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 11:24:24,889 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 11:24:24,892 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 11:24:24,893 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:24:24" (1/1) ...
[2023-12-24 11:24:24,893 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60aabe5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:24, skipping insertion in model container
[2023-12-24 11:24:24,894 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 11:24:24" (1/1) ...
[2023-12-24 11:24:24,919 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 11:24:25,033 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_operatoramount_amount50_file-98.i[915,928]
[2023-12-24 11:24:25,087 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 11:24:25,102 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 11:24:25,111 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_operatoramount_amount50_file-98.i[915,928]
[2023-12-24 11:24:25,141 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 11:24:25,153 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 11:24:25,153 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25 WrapperNode
[2023-12-24 11:24:25,153 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 11:24:25,154 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 11:24:25,154 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 11:24:25,154 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 11:24:25,159 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,178 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,195 INFO  L138                Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141
[2023-12-24 11:24:25,195 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 11:24:25,196 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 11:24:25,196 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 11:24:25,196 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 11:24:25,203 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,203 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,206 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,215 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 11:24:25,215 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,215 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,230 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,232 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,234 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,235 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,237 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 11:24:25,238 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 11:24:25,238 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 11:24:25,238 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 11:24:25,238 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (1/1) ...
[2023-12-24 11:24:25,244 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 11:24:25,252 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 11:24:25,287 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 11:24:25,299 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 11:24:25,307 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 11:24:25,308 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 11:24:25,308 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 11:24:25,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 11:24:25,309 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 11:24:25,309 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 11:24:25,369 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 11:24:25,371 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 11:24:25,950 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 11:24:26,046 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 11:24:26,046 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 11:24:26,046 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:24:26 BoogieIcfgContainer
[2023-12-24 11:24:26,046 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 11:24:26,048 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 11:24:26,048 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 11:24:26,050 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 11:24:26,050 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 11:24:24" (1/3) ...
[2023-12-24 11:24:26,050 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72278cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:24:26, skipping insertion in model container
[2023-12-24 11:24:26,051 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 11:24:25" (2/3) ...
[2023-12-24 11:24:26,051 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72278cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 11:24:26, skipping insertion in model container
[2023-12-24 11:24:26,051 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 11:24:26" (3/3) ...
[2023-12-24 11:24:26,052 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-98.i
[2023-12-24 11:24:26,067 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 11:24:26,068 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 11:24:26,113 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 11:24:26,118 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;@34156516, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 11:24:26,118 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 11:24:26,121 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 61 states, 34 states have (on average 1.411764705882353) internal successors, (48), 35 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 11:24:26,130 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2023-12-24 11:24:26,130 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 11:24:26,131 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]
[2023-12-24 11:24:26,131 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 11:24:26,135 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 11:24:26,135 INFO  L85        PathProgramCache]: Analyzing trace with hash 1742275018, now seen corresponding path program 1 times
[2023-12-24 11:24:26,147 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 11:24:26,148 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116281711]
[2023-12-24 11:24:26,148 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 11:24:26,148 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 11:24:26,148 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 11:24:26,154 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 11:24:26,154 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 11:24:26,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 11:24:26,381 INFO  L262         TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 11:24:26,388 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 11:24:26,425 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked.
[2023-12-24 11:24:26,425 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 11:24:26,425 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 11:24:26,426 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116281711]
[2023-12-24 11:24:26,426 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [116281711] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 11:24:26,426 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 11:24:26,426 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 11:24:26,427 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977373820]
[2023-12-24 11:24:26,428 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 11:24:26,431 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 11:24:26,431 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 11:24:26,464 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 11:24:26,465 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 11:24:26,466 INFO  L87              Difference]: Start difference. First operand  has 61 states, 34 states have (on average 1.411764705882353) internal successors, (48), 35 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) Second operand  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 11:24:26,746 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 11:24:26,746 INFO  L93              Difference]: Finished difference Result 119 states and 214 transitions.
[2023-12-24 11:24:26,765 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 11:24:26,767 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 146
[2023-12-24 11:24:26,767 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 11:24:26,771 INFO  L225             Difference]: With dead ends: 119
[2023-12-24 11:24:26,772 INFO  L226             Difference]: Without dead ends: 59
[2023-12-24 11:24:26,776 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 11:24:26,779 INFO  L413           NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 11:24:26,779 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 11:24:26,793 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2023-12-24 11:24:26,809 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2023-12-24 11:24:26,811 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 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 11:24:26,815 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 91 transitions.
[2023-12-24 11:24:26,816 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 91 transitions. Word has length 146
[2023-12-24 11:24:26,817 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 11:24:26,817 INFO  L495      AbstractCegarLoop]: Abstraction has 59 states and 91 transitions.
[2023-12-24 11:24:26,817 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 11:24:26,817 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 91 transitions.
[2023-12-24 11:24:26,819 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2023-12-24 11:24:26,819 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 11:24:26,819 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]
[2023-12-24 11:24:26,829 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-24 11:24:27,020 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 11:24:27,021 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 11:24:27,022 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 11:24:27,022 INFO  L85        PathProgramCache]: Analyzing trace with hash -966136126, now seen corresponding path program 1 times
[2023-12-24 11:24:27,023 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 11:24:27,024 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026007446]
[2023-12-24 11:24:27,024 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 11:24:27,024 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 11:24:27,025 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 11:24:27,026 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 11:24:27,028 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 11:24:27,246 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 11:24:27,258 INFO  L262         TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-24 11:24:27,263 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 11:24:27,378 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2023-12-24 11:24:27,379 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 11:24:27,379 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 11:24:27,379 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026007446]
[2023-12-24 11:24:27,379 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026007446] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 11:24:27,379 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 11:24:27,379 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-24 11:24:27,379 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710272317]
[2023-12-24 11:24:27,379 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 11:24:27,381 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-24 11:24:27,381 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 11:24:27,381 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-24 11:24:27,381 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-24 11:24:27,382 INFO  L87              Difference]: Start difference. First operand 59 states and 91 transitions. Second operand  has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-24 11:24:28,050 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 11:24:28,050 INFO  L93              Difference]: Finished difference Result 160 states and 248 transitions.
[2023-12-24 11:24:28,051 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-24 11:24:28,052 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 146
[2023-12-24 11:24:28,055 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 11:24:28,059 INFO  L225             Difference]: With dead ends: 160
[2023-12-24 11:24:28,060 INFO  L226             Difference]: Without dead ends: 102
[2023-12-24 11:24:28,063 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-24 11:24:28,064 INFO  L413           NwaCegarLoop]: 145 mSDtfsCounter, 83 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-24 11:24:28,065 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 210 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-24 11:24:28,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2023-12-24 11:24:28,074 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 59.
[2023-12-24 11:24:28,074 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 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 11:24:28,075 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 90 transitions.
[2023-12-24 11:24:28,075 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 90 transitions. Word has length 146
[2023-12-24 11:24:28,080 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 11:24:28,080 INFO  L495      AbstractCegarLoop]: Abstraction has 59 states and 90 transitions.
[2023-12-24 11:24:28,080 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-24 11:24:28,080 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 90 transitions.
[2023-12-24 11:24:28,082 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2023-12-24 11:24:28,082 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 11:24:28,082 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]
[2023-12-24 11:24:28,093 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 11:24:28,294 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 11:24:28,295 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 11:24:28,295 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 11:24:28,295 INFO  L85        PathProgramCache]: Analyzing trace with hash -964289084, now seen corresponding path program 1 times
[2023-12-24 11:24:28,296 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 11:24:28,296 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586165629]
[2023-12-24 11:24:28,296 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 11:24:28,296 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 11:24:28,296 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 11:24:28,297 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 11:24:28,322 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 11:24:28,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 11:24:28,529 INFO  L262         TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-24 11:24:28,533 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 11:24:28,644 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2023-12-24 11:24:28,644 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 11:24:28,644 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 11:24:28,644 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586165629]
[2023-12-24 11:24:28,645 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [586165629] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 11:24:28,645 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 11:24:28,645 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-24 11:24:28,645 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634992506]
[2023-12-24 11:24:28,645 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 11:24:28,645 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-24 11:24:28,645 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 11:24:28,646 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-24 11:24:28,646 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-24 11:24:28,646 INFO  L87              Difference]: Start difference. First operand 59 states and 90 transitions. Second operand  has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-24 11:24:29,846 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 11:24:29,846 INFO  L93              Difference]: Finished difference Result 218 states and 335 transitions.
[2023-12-24 11:24:29,849 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-24 11:24:29,849 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 146
[2023-12-24 11:24:29,849 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 11:24:29,851 INFO  L225             Difference]: With dead ends: 218
[2023-12-24 11:24:29,851 INFO  L226             Difference]: Without dead ends: 160
[2023-12-24 11:24:29,851 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-24 11:24:29,852 INFO  L413           NwaCegarLoop]: 151 mSDtfsCounter, 144 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-12-24 11:24:29,852 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 359 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-12-24 11:24:29,853 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 160 states.
[2023-12-24 11:24:29,869 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 113.
[2023-12-24 11:24:29,869 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 62 states have internal predecessors, (78), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48)
[2023-12-24 11:24:29,870 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 174 transitions.
[2023-12-24 11:24:29,871 INFO  L78                 Accepts]: Start accepts. Automaton has 113 states and 174 transitions. Word has length 146
[2023-12-24 11:24:29,871 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 11:24:29,871 INFO  L495      AbstractCegarLoop]: Abstraction has 113 states and 174 transitions.
[2023-12-24 11:24:29,871 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-24 11:24:29,871 INFO  L276                IsEmpty]: Start isEmpty. Operand 113 states and 174 transitions.
[2023-12-24 11:24:29,873 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2023-12-24 11:24:29,873 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 11:24:29,873 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]
[2023-12-24 11:24:29,884 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 (4)] Ended with exit code 0
[2023-12-24 11:24:30,081 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 11:24:30,082 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 11:24:30,082 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 11:24:30,082 INFO  L85        PathProgramCache]: Analyzing trace with hash -964229502, now seen corresponding path program 1 times
[2023-12-24 11:24:30,083 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 11:24:30,083 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960893336]
[2023-12-24 11:24:30,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 11:24:30,083 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 11:24:30,083 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 11:24:30,084 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 11:24:30,086 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 11:24:30,467 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 11:24:30,482 INFO  L262         TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-24 11:24:30,487 INFO  L285         TraceCheckSpWp]: Computing forward predicates...