/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/seq-mthreaded/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-16 18:01:25,253 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-16 18:01:25,295 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-16 18:01:25,305 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-16 18:01:25,306 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-16 18:01:25,333 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-16 18:01:25,334 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-16 18:01:25,334 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-16 18:01:25,334 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-16 18:01:25,334 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-16 18:01:25,335 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-16 18:01:25,335 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-16 18:01:25,335 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-16 18:01:25,336 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-16 18:01:25,336 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-16 18:01:25,336 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-16 18:01:25,336 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-16 18:01:25,337 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-16 18:01:25,337 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-16 18:01:25,337 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-16 18:01:25,337 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-16 18:01:25,338 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-16 18:01:25,338 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-16 18:01:25,339 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-16 18:01:25,339 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-16 18:01:25,339 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-16 18:01:25,339 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-16 18:01:25,339 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-16 18:01:25,340 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-16 18:01:25,340 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-16 18:01:25,340 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-16 18:01:25,340 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-16 18:01:25,341 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-16 18:01:25,341 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-16 18:01:25,341 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 18:01:25,341 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-16 18:01:25,342 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-16 18:01:25,342 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-16 18:01:25,342 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-16 18:01:25,342 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-16 18:01:25,343 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-16 18:01:25,347 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-16 18:01:25,348 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-16 18:01:25,348 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-16 18:01:25,348 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-16 18:01:25,348 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-16 18:01:25,348 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-16 18:01:25,566 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-16 18:01:25,585 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-16 18:01:25,587 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-16 18:01:25,588 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-16 18:01:25,588 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-16 18:01:25,590 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c
[2023-12-16 18:01:26,671 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-16 18:01:26,851 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-16 18:01:26,851 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c
[2023-12-16 18:01:26,865 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e5f7ad13/0630e058549a42baa514e9a2eed51ec1/FLAG649a433a3
[2023-12-16 18:01:26,875 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e5f7ad13/0630e058549a42baa514e9a2eed51ec1
[2023-12-16 18:01:26,877 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-16 18:01:26,878 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-16 18:01:26,879 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-16 18:01:26,879 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-16 18:01:26,885 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-16 18:01:26,886 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:01:26" (1/1) ...
[2023-12-16 18:01:26,887 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5a3d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:26, skipping insertion in model container
[2023-12-16 18:01:26,887 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:01:26" (1/1) ...
[2023-12-16 18:01:26,915 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-16 18:01:27,063 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c[16964,16977]
[2023-12-16 18:01:27,066 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 18:01:27,076 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-16 18:01:27,148 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c[16964,16977]
[2023-12-16 18:01:27,149 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-16 18:01:27,163 INFO  L206         MainTranslator]: Completed translation
[2023-12-16 18:01:27,164 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27 WrapperNode
[2023-12-16 18:01:27,164 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-16 18:01:27,165 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-16 18:01:27,165 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-16 18:01:27,165 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-16 18:01:27,169 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,178 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,200 INFO  L138                Inliner]: procedures = 26, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 421
[2023-12-16 18:01:27,200 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-16 18:01:27,201 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-16 18:01:27,201 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-16 18:01:27,201 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-16 18:01:27,208 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,209 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,213 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,224 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].
[2023-12-16 18:01:27,224 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,224 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,231 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,235 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,237 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,238 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,241 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-16 18:01:27,242 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-16 18:01:27,242 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-16 18:01:27,242 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-16 18:01:27,242 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (1/1) ...
[2023-12-16 18:01:27,246 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 18:01:27,255 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 18:01:27,289 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)
[2023-12-16 18:01:27,298 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
[2023-12-16 18:01:27,332 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-16 18:01:27,332 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-16 18:01:27,332 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-16 18:01:27,332 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-16 18:01:27,403 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-16 18:01:27,404 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-16 18:01:27,880 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-16 18:01:27,911 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-16 18:01:27,911 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-16 18:01:27,912 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:01:27 BoogieIcfgContainer
[2023-12-16 18:01:27,912 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-16 18:01:27,918 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-16 18:01:27,918 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-16 18:01:27,920 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-16 18:01:27,920 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:01:26" (1/3) ...
[2023-12-16 18:01:27,921 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7ba20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:01:27, skipping insertion in model container
[2023-12-16 18:01:27,921 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:01:27" (2/3) ...
[2023-12-16 18:01:27,922 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7ba20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:01:27, skipping insertion in model container
[2023-12-16 18:01:27,922 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:01:27" (3/3) ...
[2023-12-16 18:01:27,925 INFO  L112   eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c
[2023-12-16 18:01:27,938 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-16 18:01:27,938 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-16 18:01:27,981 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-16 18:01:27,986 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;@482f1c92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-16 18:01:27,986 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-16 18:01:27,992 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 118 states, 116 states have (on average 1.793103448275862) internal successors, (208), 117 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:28,009 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2023-12-16 18:01:28,010 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:28,010 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:28,011 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:28,014 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:28,015 INFO  L85        PathProgramCache]: Analyzing trace with hash 1104781184, now seen corresponding path program 1 times
[2023-12-16 18:01:28,024 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:28,025 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990643592]
[2023-12-16 18:01:28,025 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:28,025 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
[2023-12-16 18:01:28,025 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:28,040 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)
[2023-12-16 18:01:28,059 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
[2023-12-16 18:01:28,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:28,118 INFO  L262         TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 18:01:28,122 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:28,166 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:28,166 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:28,166 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:28,167 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990643592]
[2023-12-16 18:01:28,167 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [990643592] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:28,167 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:28,167 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 18:01:28,169 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631759019]
[2023-12-16 18:01:28,169 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:28,172 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 18:01:28,172 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:28,188 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 18:01:28,189 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 18:01:28,191 INFO  L87              Difference]: Start difference. First operand  has 118 states, 116 states have (on average 1.793103448275862) internal successors, (208), 117 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:28,262 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:28,262 INFO  L93              Difference]: Finished difference Result 192 states and 332 transitions.
[2023-12-16 18:01:28,266 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 18:01:28,267 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34
[2023-12-16 18:01:28,267 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:28,273 INFO  L225             Difference]: With dead ends: 192
[2023-12-16 18:01:28,273 INFO  L226             Difference]: Without dead ends: 116
[2023-12-16 18:01:28,275 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 18:01:28,278 INFO  L413           NwaCegarLoop]: 200 mSDtfsCounter, 0 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:28,278 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 556 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:28,289 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 116 states.
[2023-12-16 18:01:28,301 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116.
[2023-12-16 18:01:28,302 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 116 states, 115 states have (on average 1.4086956521739131) internal successors, (162), 115 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:28,303 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 162 transitions.
[2023-12-16 18:01:28,304 INFO  L78                 Accepts]: Start accepts. Automaton has 116 states and 162 transitions. Word has length 34
[2023-12-16 18:01:28,304 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:28,304 INFO  L495      AbstractCegarLoop]: Abstraction has 116 states and 162 transitions.
[2023-12-16 18:01:28,304 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:28,304 INFO  L276                IsEmpty]: Start isEmpty. Operand 116 states and 162 transitions.
[2023-12-16 18:01:28,306 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2023-12-16 18:01:28,306 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:28,306 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:28,316 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
[2023-12-16 18:01:28,516 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
[2023-12-16 18:01:28,517 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:28,518 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:28,518 INFO  L85        PathProgramCache]: Analyzing trace with hash 793023434, now seen corresponding path program 1 times
[2023-12-16 18:01:28,519 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:28,519 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774854027]
[2023-12-16 18:01:28,519 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:28,519 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
[2023-12-16 18:01:28,520 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:28,520 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)
[2023-12-16 18:01:28,570 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
[2023-12-16 18:01:28,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:28,665 INFO  L262         TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:28,667 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:28,770 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:28,770 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:28,770 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:28,771 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774854027]
[2023-12-16 18:01:28,771 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774854027] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:28,771 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:28,771 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:28,771 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898359326]
[2023-12-16 18:01:28,771 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:28,772 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:28,772 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:28,773 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:28,773 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:28,773 INFO  L87              Difference]: Start difference. First operand 116 states and 162 transitions. Second operand  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:28,801 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:28,801 INFO  L93              Difference]: Finished difference Result 250 states and 382 transitions.
[2023-12-16 18:01:28,802 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:28,802 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74
[2023-12-16 18:01:28,816 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:28,817 INFO  L225             Difference]: With dead ends: 250
[2023-12-16 18:01:28,818 INFO  L226             Difference]: Without dead ends: 179
[2023-12-16 18:01:28,818 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:28,819 INFO  L413           NwaCegarLoop]: 237 mSDtfsCounter, 101 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:28,820 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 354 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:28,820 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 179 states.
[2023-12-16 18:01:28,828 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177.
[2023-12-16 18:01:28,829 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 177 states, 176 states have (on average 1.4943181818181819) internal successors, (263), 176 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:28,830 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 263 transitions.
[2023-12-16 18:01:28,830 INFO  L78                 Accepts]: Start accepts. Automaton has 177 states and 263 transitions. Word has length 74
[2023-12-16 18:01:28,830 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:28,830 INFO  L495      AbstractCegarLoop]: Abstraction has 177 states and 263 transitions.
[2023-12-16 18:01:28,831 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:28,831 INFO  L276                IsEmpty]: Start isEmpty. Operand 177 states and 263 transitions.
[2023-12-16 18:01:28,852 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2023-12-16 18:01:28,852 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:28,853 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:28,859 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
[2023-12-16 18:01:29,056 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
[2023-12-16 18:01:29,059 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:29,059 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:29,060 INFO  L85        PathProgramCache]: Analyzing trace with hash 706247657, now seen corresponding path program 1 times
[2023-12-16 18:01:29,060 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:29,060 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47568700]
[2023-12-16 18:01:29,060 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:29,060 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
[2023-12-16 18:01:29,060 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:29,069 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)
[2023-12-16 18:01:29,070 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
[2023-12-16 18:01:29,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:29,137 INFO  L262         TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:29,140 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:29,199 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:29,199 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:29,199 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:29,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47568700]
[2023-12-16 18:01:29,202 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [47568700] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:29,203 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:29,204 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:29,204 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861999098]
[2023-12-16 18:01:29,206 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:29,211 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:29,211 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:29,211 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:29,211 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:29,211 INFO  L87              Difference]: Start difference. First operand 177 states and 263 transitions. Second operand  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:29,225 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:29,225 INFO  L93              Difference]: Finished difference Result 425 states and 671 transitions.
[2023-12-16 18:01:29,225 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:29,226 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74
[2023-12-16 18:01:29,226 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:29,227 INFO  L225             Difference]: With dead ends: 425
[2023-12-16 18:01:29,227 INFO  L226             Difference]: Without dead ends: 293
[2023-12-16 18:01:29,228 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:29,229 INFO  L413           NwaCegarLoop]: 196 mSDtfsCounter, 89 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:29,229 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 325 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:29,229 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 293 states.
[2023-12-16 18:01:29,244 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 291.
[2023-12-16 18:01:29,245 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 291 states, 290 states have (on average 1.5517241379310345) internal successors, (450), 290 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:29,246 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 450 transitions.
[2023-12-16 18:01:29,246 INFO  L78                 Accepts]: Start accepts. Automaton has 291 states and 450 transitions. Word has length 74
[2023-12-16 18:01:29,246 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:29,246 INFO  L495      AbstractCegarLoop]: Abstraction has 291 states and 450 transitions.
[2023-12-16 18:01:29,246 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:29,246 INFO  L276                IsEmpty]: Start isEmpty. Operand 291 states and 450 transitions.
[2023-12-16 18:01:29,247 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2023-12-16 18:01:29,247 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:29,247 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:29,260 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-16 18:01:29,450 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
[2023-12-16 18:01:29,451 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:29,451 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:29,451 INFO  L85        PathProgramCache]: Analyzing trace with hash 1617451656, now seen corresponding path program 1 times
[2023-12-16 18:01:29,451 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:29,452 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635452222]
[2023-12-16 18:01:29,452 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:29,452 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
[2023-12-16 18:01:29,452 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:29,453 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)
[2023-12-16 18:01:29,456 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
[2023-12-16 18:01:29,515 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:29,517 INFO  L262         TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:29,518 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:29,570 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:29,570 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:29,571 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:29,571 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635452222]
[2023-12-16 18:01:29,571 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [635452222] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:29,571 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:29,571 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:29,571 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916692621]
[2023-12-16 18:01:29,571 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:29,571 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:29,572 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:29,572 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:29,572 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:29,572 INFO  L87              Difference]: Start difference. First operand 291 states and 450 transitions. Second operand  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:29,586 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:29,586 INFO  L93              Difference]: Finished difference Result 751 states and 1204 transitions.
[2023-12-16 18:01:29,586 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:29,587 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74
[2023-12-16 18:01:29,587 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:29,589 INFO  L225             Difference]: With dead ends: 751
[2023-12-16 18:01:29,589 INFO  L226             Difference]: Without dead ends: 505
[2023-12-16 18:01:29,590 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:29,590 INFO  L413           NwaCegarLoop]: 189 mSDtfsCounter, 85 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:29,590 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 322 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:29,591 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 505 states.
[2023-12-16 18:01:29,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 503.
[2023-12-16 18:01:29,603 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 503 states, 502 states have (on average 1.5816733067729083) internal successors, (794), 502 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:29,605 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 794 transitions.
[2023-12-16 18:01:29,605 INFO  L78                 Accepts]: Start accepts. Automaton has 503 states and 794 transitions. Word has length 74
[2023-12-16 18:01:29,605 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:29,605 INFO  L495      AbstractCegarLoop]: Abstraction has 503 states and 794 transitions.
[2023-12-16 18:01:29,605 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:29,605 INFO  L276                IsEmpty]: Start isEmpty. Operand 503 states and 794 transitions.
[2023-12-16 18:01:29,606 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2023-12-16 18:01:29,606 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:29,606 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:29,609 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 (5)] Ended with exit code 0
[2023-12-16 18:01:29,808 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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
[2023-12-16 18:01:29,809 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:29,809 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:29,809 INFO  L85        PathProgramCache]: Analyzing trace with hash 2004246695, now seen corresponding path program 1 times
[2023-12-16 18:01:29,810 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:29,810 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990092252]
[2023-12-16 18:01:29,810 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:29,810 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
[2023-12-16 18:01:29,810 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:29,811 INFO  L229       MonitoredProcess]: Starting monitored process 6 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)
[2023-12-16 18:01:29,813 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 (6)] Waiting until timeout for monitored process
[2023-12-16 18:01:29,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:29,901 INFO  L262         TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-16 18:01:29,903 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:30,742 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:30,742 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:30,742 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:30,742 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990092252]
[2023-12-16 18:01:30,743 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [990092252] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:30,743 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:30,743 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-16 18:01:30,743 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721628805]
[2023-12-16 18:01:30,743 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:30,743 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-16 18:01:30,743 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:30,744 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-16 18:01:30,744 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2023-12-16 18:01:30,744 INFO  L87              Difference]: Start difference. First operand 503 states and 794 transitions. Second operand  has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:30,894 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:30,894 INFO  L93              Difference]: Finished difference Result 3709 states and 6037 transitions.
[2023-12-16 18:01:30,895 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-16 18:01:30,895 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74
[2023-12-16 18:01:30,895 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:30,905 INFO  L225             Difference]: With dead ends: 3709
[2023-12-16 18:01:30,905 INFO  L226             Difference]: Without dead ends: 3251
[2023-12-16 18:01:30,906 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2023-12-16 18:01:30,907 INFO  L413           NwaCegarLoop]: 155 mSDtfsCounter, 959 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:30,907 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 954 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-16 18:01:30,909 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3251 states.
[2023-12-16 18:01:30,936 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 959.
[2023-12-16 18:01:30,937 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 959 states, 958 states have (on average 1.592901878914405) internal successors, (1526), 958 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:30,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1526 transitions.
[2023-12-16 18:01:30,939 INFO  L78                 Accepts]: Start accepts. Automaton has 959 states and 1526 transitions. Word has length 74
[2023-12-16 18:01:30,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:30,940 INFO  L495      AbstractCegarLoop]: Abstraction has 959 states and 1526 transitions.
[2023-12-16 18:01:30,940 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:30,940 INFO  L276                IsEmpty]: Start isEmpty. Operand 959 states and 1526 transitions.
[2023-12-16 18:01:30,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2023-12-16 18:01:30,941 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:30,941 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:30,948 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 (6)] Forceful destruction successful, exit code 0
[2023-12-16 18:01:31,144 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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
[2023-12-16 18:01:31,144 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:31,144 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:31,144 INFO  L85        PathProgramCache]: Analyzing trace with hash 1989045912, now seen corresponding path program 1 times
[2023-12-16 18:01:31,145 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:31,145 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986057860]
[2023-12-16 18:01:31,145 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:31,145 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
[2023-12-16 18:01:31,145 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:31,146 INFO  L229       MonitoredProcess]: Starting monitored process 7 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)
[2023-12-16 18:01:31,147 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 (7)] Waiting until timeout for monitored process
[2023-12-16 18:01:31,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:31,215 INFO  L262         TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 18:01:31,216 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:31,233 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:31,233 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:31,233 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:31,233 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986057860]
[2023-12-16 18:01:31,233 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [986057860] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:31,233 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:31,233 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 18:01:31,233 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868717199]
[2023-12-16 18:01:31,233 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:31,234 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 18:01:31,234 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:31,234 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 18:01:31,234 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 18:01:31,234 INFO  L87              Difference]: Start difference. First operand 959 states and 1526 transitions. Second operand  has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:31,261 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:31,261 INFO  L93              Difference]: Finished difference Result 1009 states and 1591 transitions.
[2023-12-16 18:01:31,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-16 18:01:31,263 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75
[2023-12-16 18:01:31,263 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:31,266 INFO  L225             Difference]: With dead ends: 1009
[2023-12-16 18:01:31,266 INFO  L226             Difference]: Without dead ends: 1007
[2023-12-16 18:01:31,266 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 18:01:31,267 INFO  L413           NwaCegarLoop]: 158 mSDtfsCounter, 1 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:31,267 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 467 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:31,268 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1007 states.
[2023-12-16 18:01:31,288 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 991.
[2023-12-16 18:01:31,290 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 991 states, 990 states have (on average 1.5737373737373737) internal successors, (1558), 990 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:31,292 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1558 transitions.
[2023-12-16 18:01:31,292 INFO  L78                 Accepts]: Start accepts. Automaton has 991 states and 1558 transitions. Word has length 75
[2023-12-16 18:01:31,292 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:31,292 INFO  L495      AbstractCegarLoop]: Abstraction has 991 states and 1558 transitions.
[2023-12-16 18:01:31,293 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:31,293 INFO  L276                IsEmpty]: Start isEmpty. Operand 991 states and 1558 transitions.
[2023-12-16 18:01:31,293 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2023-12-16 18:01:31,293 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:31,293 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:31,310 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 (7)] Ended with exit code 0
[2023-12-16 18:01:31,495 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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
[2023-12-16 18:01:31,496 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:31,496 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:31,496 INFO  L85        PathProgramCache]: Analyzing trace with hash 1531882991, now seen corresponding path program 1 times
[2023-12-16 18:01:31,497 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:31,497 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55226755]
[2023-12-16 18:01:31,497 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:31,497 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
[2023-12-16 18:01:31,497 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:31,498 INFO  L229       MonitoredProcess]: Starting monitored process 8 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)
[2023-12-16 18:01:31,499 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 (8)] Waiting until timeout for monitored process
[2023-12-16 18:01:31,570 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:31,572 INFO  L262         TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:31,573 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:31,639 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:31,640 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:31,640 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:31,640 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55226755]
[2023-12-16 18:01:31,640 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [55226755] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:31,640 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:31,640 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:31,640 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071161955]
[2023-12-16 18:01:31,640 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:31,641 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:31,641 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:31,641 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:31,641 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:31,641 INFO  L87              Difference]: Start difference. First operand 991 states and 1558 transitions. Second operand  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:31,667 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:31,668 INFO  L93              Difference]: Finished difference Result 2771 states and 4392 transitions.
[2023-12-16 18:01:31,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:31,668 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76
[2023-12-16 18:01:31,668 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:31,673 INFO  L225             Difference]: With dead ends: 2771
[2023-12-16 18:01:31,673 INFO  L226             Difference]: Without dead ends: 1825
[2023-12-16 18:01:31,674 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:31,675 INFO  L413           NwaCegarLoop]: 156 mSDtfsCounter, 77 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:31,675 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 267 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:31,676 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1825 states.
[2023-12-16 18:01:31,699 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1807.
[2023-12-16 18:01:31,701 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1807 states, 1806 states have (on average 1.566998892580288) internal successors, (2830), 1806 states have internal predecessors, (2830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:31,706 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2830 transitions.
[2023-12-16 18:01:31,706 INFO  L78                 Accepts]: Start accepts. Automaton has 1807 states and 2830 transitions. Word has length 76
[2023-12-16 18:01:31,706 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:31,706 INFO  L495      AbstractCegarLoop]: Abstraction has 1807 states and 2830 transitions.
[2023-12-16 18:01:31,706 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:31,706 INFO  L276                IsEmpty]: Start isEmpty. Operand 1807 states and 2830 transitions.
[2023-12-16 18:01:31,707 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2023-12-16 18:01:31,707 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:31,707 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:31,741 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 (8)] Forceful destruction successful, exit code 0
[2023-12-16 18:01:31,916 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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
[2023-12-16 18:01:31,917 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:31,917 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:31,917 INFO  L85        PathProgramCache]: Analyzing trace with hash -446375905, now seen corresponding path program 1 times
[2023-12-16 18:01:31,917 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:31,917 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232782518]
[2023-12-16 18:01:31,918 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:31,918 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
[2023-12-16 18:01:31,918 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:31,924 INFO  L229       MonitoredProcess]: Starting monitored process 9 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)
[2023-12-16 18:01:31,936 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 (9)] Waiting until timeout for monitored process
[2023-12-16 18:01:31,992 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:31,993 INFO  L262         TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:31,994 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:32,039 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:32,040 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:32,040 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:32,040 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232782518]
[2023-12-16 18:01:32,040 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [232782518] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:32,040 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:32,040 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:32,040 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457602613]
[2023-12-16 18:01:32,040 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:32,040 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:32,040 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:32,041 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:32,041 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:32,041 INFO  L87              Difference]: Start difference. First operand 1807 states and 2830 transitions. Second operand  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:32,078 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:32,078 INFO  L93              Difference]: Finished difference Result 5075 states and 7952 transitions.
[2023-12-16 18:01:32,078 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:32,078 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77
[2023-12-16 18:01:32,079 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:32,087 INFO  L225             Difference]: With dead ends: 5075
[2023-12-16 18:01:32,087 INFO  L226             Difference]: Without dead ends: 3313
[2023-12-16 18:01:32,089 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:32,090 INFO  L413           NwaCegarLoop]: 214 mSDtfsCounter, 93 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:32,090 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 339 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:32,092 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3313 states.
[2023-12-16 18:01:32,156 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3313 to 3311.
[2023-12-16 18:01:32,160 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3311 states, 3310 states have (on average 1.5510574018126888) internal successors, (5134), 3310 states have internal predecessors, (5134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:32,168 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 5134 transitions.
[2023-12-16 18:01:32,168 INFO  L78                 Accepts]: Start accepts. Automaton has 3311 states and 5134 transitions. Word has length 77
[2023-12-16 18:01:32,168 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:32,168 INFO  L495      AbstractCegarLoop]: Abstraction has 3311 states and 5134 transitions.
[2023-12-16 18:01:32,168 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:32,168 INFO  L276                IsEmpty]: Start isEmpty. Operand 3311 states and 5134 transitions.
[2023-12-16 18:01:32,169 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2023-12-16 18:01:32,169 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:32,169 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:32,173 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 (9)] Forceful destruction successful, exit code 0
[2023-12-16 18:01:32,371 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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
[2023-12-16 18:01:32,371 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:32,372 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:32,372 INFO  L85        PathProgramCache]: Analyzing trace with hash 925708607, now seen corresponding path program 1 times
[2023-12-16 18:01:32,372 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:32,372 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788225244]
[2023-12-16 18:01:32,372 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:32,372 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
[2023-12-16 18:01:32,372 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:32,374 INFO  L229       MonitoredProcess]: Starting monitored process 10 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)
[2023-12-16 18:01:32,401 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 (10)] Waiting until timeout for monitored process
[2023-12-16 18:01:32,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:32,434 INFO  L262         TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:32,435 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:32,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:32,473 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:32,473 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:32,473 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788225244]
[2023-12-16 18:01:32,473 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [788225244] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:32,473 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:32,474 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:32,474 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6610505]
[2023-12-16 18:01:32,474 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:32,474 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:32,474 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:32,474 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:32,474 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:32,474 INFO  L87              Difference]: Start difference. First operand 3311 states and 5134 transitions. Second operand  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:32,532 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:32,532 INFO  L93              Difference]: Finished difference Result 9331 states and 14416 transitions.
[2023-12-16 18:01:32,533 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:32,533 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77
[2023-12-16 18:01:32,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:32,549 INFO  L225             Difference]: With dead ends: 9331
[2023-12-16 18:01:32,549 INFO  L226             Difference]: Without dead ends: 6065
[2023-12-16 18:01:32,553 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:32,554 INFO  L413           NwaCegarLoop]: 231 mSDtfsCounter, 97 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:32,554 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 352 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:32,558 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6065 states.
[2023-12-16 18:01:32,672 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6065 to 6063.
[2023-12-16 18:01:32,680 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6063 states, 6062 states have (on average 1.5278785879247774) internal successors, (9262), 6062 states have internal predecessors, (9262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:32,695 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6063 states to 6063 states and 9262 transitions.
[2023-12-16 18:01:32,695 INFO  L78                 Accepts]: Start accepts. Automaton has 6063 states and 9262 transitions. Word has length 77
[2023-12-16 18:01:32,696 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:32,696 INFO  L495      AbstractCegarLoop]: Abstraction has 6063 states and 9262 transitions.
[2023-12-16 18:01:32,696 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:32,696 INFO  L276                IsEmpty]: Start isEmpty. Operand 6063 states and 9262 transitions.
[2023-12-16 18:01:32,696 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2023-12-16 18:01:32,696 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:32,696 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:32,712 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 (10)] Ended with exit code 0
[2023-12-16 18:01:32,899 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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
[2023-12-16 18:01:32,899 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:32,900 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:32,900 INFO  L85        PathProgramCache]: Analyzing trace with hash 537132629, now seen corresponding path program 1 times
[2023-12-16 18:01:32,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:32,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135097949]
[2023-12-16 18:01:32,900 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:32,900 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
[2023-12-16 18:01:32,900 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:32,901 INFO  L229       MonitoredProcess]: Starting monitored process 11 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)
[2023-12-16 18:01:32,902 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 (11)] Waiting until timeout for monitored process
[2023-12-16 18:01:32,962 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:32,964 INFO  L262         TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:32,965 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:33,002 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:33,002 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:33,003 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:33,003 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135097949]
[2023-12-16 18:01:33,003 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135097949] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:33,003 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:33,003 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:33,003 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603824279]
[2023-12-16 18:01:33,003 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:33,003 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:33,003 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:33,004 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:33,004 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:33,004 INFO  L87              Difference]: Start difference. First operand 6063 states and 9262 transitions. Second operand  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:33,104 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:33,104 INFO  L93              Difference]: Finished difference Result 11958 states and 18356 transitions.
[2023-12-16 18:01:33,105 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:33,105 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78
[2023-12-16 18:01:33,105 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:33,138 INFO  L225             Difference]: With dead ends: 11958
[2023-12-16 18:01:33,139 INFO  L226             Difference]: Without dead ends: 8691
[2023-12-16 18:01:33,143 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:33,144 INFO  L413           NwaCegarLoop]: 251 mSDtfsCounter, 102 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:33,145 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 364 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:33,150 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8691 states.
[2023-12-16 18:01:33,304 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8691 to 8689.
[2023-12-16 18:01:33,376 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8689 states, 8688 states have (on average 1.5193370165745856) internal successors, (13200), 8688 states have internal predecessors, (13200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:33,395 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8689 states to 8689 states and 13200 transitions.
[2023-12-16 18:01:33,396 INFO  L78                 Accepts]: Start accepts. Automaton has 8689 states and 13200 transitions. Word has length 78
[2023-12-16 18:01:33,396 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:33,396 INFO  L495      AbstractCegarLoop]: Abstraction has 8689 states and 13200 transitions.
[2023-12-16 18:01:33,396 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:33,396 INFO  L276                IsEmpty]: Start isEmpty. Operand 8689 states and 13200 transitions.
[2023-12-16 18:01:33,399 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2023-12-16 18:01:33,399 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:33,400 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:33,402 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 (11)] Ended with exit code 0
[2023-12-16 18:01:33,601 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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
[2023-12-16 18:01:33,602 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:33,602 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:33,603 INFO  L85        PathProgramCache]: Analyzing trace with hash 2110410325, now seen corresponding path program 1 times
[2023-12-16 18:01:33,603 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:33,603 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559112031]
[2023-12-16 18:01:33,603 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:33,603 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
[2023-12-16 18:01:33,603 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:33,604 INFO  L229       MonitoredProcess]: Starting monitored process 12 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)
[2023-12-16 18:01:33,606 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 (12)] Waiting until timeout for monitored process
[2023-12-16 18:01:33,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:33,673 INFO  L262         TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:33,674 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:33,699 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:33,699 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:33,699 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:33,699 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559112031]
[2023-12-16 18:01:33,699 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559112031] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:33,699 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:33,699 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:33,699 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481880533]
[2023-12-16 18:01:33,699 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:33,700 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:33,700 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:33,700 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:33,700 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:33,700 INFO  L87              Difference]: Start difference. First operand 8689 states and 13200 transitions. Second operand  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:33,768 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:33,769 INFO  L93              Difference]: Finished difference Result 14618 states and 22276 transitions.
[2023-12-16 18:01:33,769 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:33,769 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107
[2023-12-16 18:01:33,770 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:33,778 INFO  L225             Difference]: With dead ends: 14618
[2023-12-16 18:01:33,778 INFO  L226             Difference]: Without dead ends: 5976
[2023-12-16 18:01:33,787 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:33,788 INFO  L413           NwaCegarLoop]: 215 mSDtfsCounter, 83 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:33,788 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 358 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:33,792 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5976 states.
[2023-12-16 18:01:33,916 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 5974.
[2023-12-16 18:01:33,923 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5974 states, 5973 states have (on average 1.516323455549975) internal successors, (9057), 5973 states have internal predecessors, (9057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:33,931 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 9057 transitions.
[2023-12-16 18:01:33,931 INFO  L78                 Accepts]: Start accepts. Automaton has 5974 states and 9057 transitions. Word has length 107
[2023-12-16 18:01:33,932 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:33,932 INFO  L495      AbstractCegarLoop]: Abstraction has 5974 states and 9057 transitions.
[2023-12-16 18:01:33,932 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:33,932 INFO  L276                IsEmpty]: Start isEmpty. Operand 5974 states and 9057 transitions.
[2023-12-16 18:01:33,934 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2023-12-16 18:01:33,934 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:33,934 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:33,948 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 (12)] Forceful destruction successful, exit code 0
[2023-12-16 18:01:34,137 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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
[2023-12-16 18:01:34,137 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:34,137 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:34,137 INFO  L85        PathProgramCache]: Analyzing trace with hash 1733612164, now seen corresponding path program 1 times
[2023-12-16 18:01:34,138 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:34,138 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805483694]
[2023-12-16 18:01:34,138 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:34,138 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
[2023-12-16 18:01:34,138 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:34,161 INFO  L229       MonitoredProcess]: Starting monitored process 13 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)
[2023-12-16 18:01:34,217 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 (13)] Waiting until timeout for monitored process
[2023-12-16 18:01:34,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:34,272 INFO  L262         TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-16 18:01:34,274 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:34,867 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:34,867 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 18:01:35,203 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:35,203 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:35,204 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805483694]
[2023-12-16 18:01:35,204 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [805483694] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-16 18:01:35,204 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 18:01:35,204 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15
[2023-12-16 18:01:35,204 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131418662]
[2023-12-16 18:01:35,204 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 18:01:35,204 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-16 18:01:35,205 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:35,205 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-16 18:01:35,205 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240
[2023-12-16 18:01:35,205 INFO  L87              Difference]: Start difference. First operand 5974 states and 9057 transitions. Second operand  has 16 states, 16 states have (on average 11.75) internal successors, (188), 15 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:35,926 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:35,926 INFO  L93              Difference]: Finished difference Result 20678 states and 30990 transitions.
[2023-12-16 18:01:35,926 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2023-12-16 18:01:35,927 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 11.75) internal successors, (188), 15 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108
[2023-12-16 18:01:35,927 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:35,952 INFO  L225             Difference]: With dead ends: 20678
[2023-12-16 18:01:35,952 INFO  L226             Difference]: Without dead ends: 14788
[2023-12-16 18:01:35,961 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702
[2023-12-16 18:01:35,961 INFO  L413           NwaCegarLoop]: 168 mSDtfsCounter, 1450 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:35,962 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 820 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-16 18:01:35,971 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14788 states.
[2023-12-16 18:01:36,241 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14788 to 12352.
[2023-12-16 18:01:36,256 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12352 states, 12351 states have (on average 1.5087847137883572) internal successors, (18635), 12351 states have internal predecessors, (18635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:36,276 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12352 states to 12352 states and 18635 transitions.
[2023-12-16 18:01:36,276 INFO  L78                 Accepts]: Start accepts. Automaton has 12352 states and 18635 transitions. Word has length 108
[2023-12-16 18:01:36,276 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:36,277 INFO  L495      AbstractCegarLoop]: Abstraction has 12352 states and 18635 transitions.
[2023-12-16 18:01:36,277 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 11.75) internal successors, (188), 15 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:36,277 INFO  L276                IsEmpty]: Start isEmpty. Operand 12352 states and 18635 transitions.
[2023-12-16 18:01:36,279 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2023-12-16 18:01:36,280 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:36,280 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:36,284 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 (13)] Ended with exit code 0
[2023-12-16 18:01:36,482 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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
[2023-12-16 18:01:36,482 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:36,483 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:36,483 INFO  L85        PathProgramCache]: Analyzing trace with hash -694313401, now seen corresponding path program 1 times
[2023-12-16 18:01:36,483 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:36,483 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417801559]
[2023-12-16 18:01:36,483 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:36,483 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 18:01:36,484 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:36,484 INFO  L229       MonitoredProcess]: Starting monitored process 14 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)
[2023-12-16 18:01:36,486 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 (14)] Waiting until timeout for monitored process
[2023-12-16 18:01:36,548 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:36,550 INFO  L262         TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-16 18:01:36,552 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:37,166 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:37,167 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 18:01:37,364 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:37,364 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:37,365 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417801559]
[2023-12-16 18:01:37,365 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417801559] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-16 18:01:37,365 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 18:01:37,365 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15
[2023-12-16 18:01:37,365 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039401771]
[2023-12-16 18:01:37,365 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 18:01:37,365 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-16 18:01:37,365 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:37,366 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-16 18:01:37,366 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240
[2023-12-16 18:01:37,366 INFO  L87              Difference]: Start difference. First operand 12352 states and 18635 transitions. Second operand  has 16 states, 16 states have (on average 12.125) internal successors, (194), 15 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:38,521 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:38,521 INFO  L93              Difference]: Finished difference Result 57811 states and 87205 transitions.
[2023-12-16 18:01:38,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2023-12-16 18:01:38,522 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 12.125) internal successors, (194), 15 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109
[2023-12-16 18:01:38,522 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:38,588 INFO  L225             Difference]: With dead ends: 57811
[2023-12-16 18:01:38,588 INFO  L226             Difference]: Without dead ends: 45553
[2023-12-16 18:01:38,607 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870
[2023-12-16 18:01:38,607 INFO  L413           NwaCegarLoop]: 183 mSDtfsCounter, 2019 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:38,608 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2019 Valid, 812 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-16 18:01:38,636 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 45553 states.
[2023-12-16 18:01:39,391 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 45553 to 28605.
[2023-12-16 18:01:39,427 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28605 states, 28604 states have (on average 1.5019577681443155) internal successors, (42962), 28604 states have internal predecessors, (42962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:39,472 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28605 states to 28605 states and 42962 transitions.
[2023-12-16 18:01:39,472 INFO  L78                 Accepts]: Start accepts. Automaton has 28605 states and 42962 transitions. Word has length 109
[2023-12-16 18:01:39,473 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:39,473 INFO  L495      AbstractCegarLoop]: Abstraction has 28605 states and 42962 transitions.
[2023-12-16 18:01:39,473 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 12.125) internal successors, (194), 15 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:39,473 INFO  L276                IsEmpty]: Start isEmpty. Operand 28605 states and 42962 transitions.
[2023-12-16 18:01:39,478 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2023-12-16 18:01:39,478 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:39,479 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:39,496 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 (14)] Ended with exit code 0
[2023-12-16 18:01:39,681 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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
[2023-12-16 18:01:39,682 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:39,682 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:39,682 INFO  L85        PathProgramCache]: Analyzing trace with hash 1813510822, now seen corresponding path program 1 times
[2023-12-16 18:01:39,682 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:39,682 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032611909]
[2023-12-16 18:01:39,683 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:39,683 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
[2023-12-16 18:01:39,683 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:39,684 INFO  L229       MonitoredProcess]: Starting monitored process 15 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)
[2023-12-16 18:01:39,691 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 (15)] Waiting until timeout for monitored process
[2023-12-16 18:01:39,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:39,752 INFO  L262         TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:39,754 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:39,790 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:39,790 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:39,790 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:39,790 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032611909]
[2023-12-16 18:01:39,790 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032611909] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:39,790 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:39,790 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:39,790 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662367157]
[2023-12-16 18:01:39,790 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:39,791 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:39,791 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:39,791 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:39,791 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:39,791 INFO  L87              Difference]: Start difference. First operand 28605 states and 42962 transitions. Second operand  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:40,186 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:40,187 INFO  L93              Difference]: Finished difference Result 44625 states and 66980 transitions.
[2023-12-16 18:01:40,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:40,187 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109
[2023-12-16 18:01:40,188 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:40,212 INFO  L225             Difference]: With dead ends: 44625
[2023-12-16 18:01:40,212 INFO  L226             Difference]: Without dead ends: 16159
[2023-12-16 18:01:40,236 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:40,237 INFO  L413           NwaCegarLoop]: 206 mSDtfsCounter, 74 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:40,237 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 339 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:40,245 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16159 states.
[2023-12-16 18:01:40,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16159 to 16157.
[2023-12-16 18:01:40,593 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16157 states, 16156 states have (on average 1.4806882891804902) internal successors, (23922), 16156 states have internal predecessors, (23922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:40,621 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16157 states to 16157 states and 23922 transitions.
[2023-12-16 18:01:40,621 INFO  L78                 Accepts]: Start accepts. Automaton has 16157 states and 23922 transitions. Word has length 109
[2023-12-16 18:01:40,621 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:40,622 INFO  L495      AbstractCegarLoop]: Abstraction has 16157 states and 23922 transitions.
[2023-12-16 18:01:40,622 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:40,622 INFO  L276                IsEmpty]: Start isEmpty. Operand 16157 states and 23922 transitions.
[2023-12-16 18:01:40,625 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2023-12-16 18:01:40,625 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:40,625 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:40,628 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 (15)] Ended with exit code 0
[2023-12-16 18:01:40,827 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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
[2023-12-16 18:01:40,828 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:40,828 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:40,828 INFO  L85        PathProgramCache]: Analyzing trace with hash 122004318, now seen corresponding path program 1 times
[2023-12-16 18:01:40,829 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:40,829 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427411620]
[2023-12-16 18:01:40,829 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:40,829 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
[2023-12-16 18:01:40,829 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:40,831 INFO  L229       MonitoredProcess]: Starting monitored process 16 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)
[2023-12-16 18:01:40,832 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 (16)] Waiting until timeout for monitored process
[2023-12-16 18:01:40,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:40,926 INFO  L262         TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:40,928 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:40,979 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:40,980 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:40,980 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:40,980 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427411620]
[2023-12-16 18:01:40,980 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427411620] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:40,980 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:40,980 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:40,980 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132891146]
[2023-12-16 18:01:40,980 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:40,981 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:40,981 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:40,982 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:40,982 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:40,982 INFO  L87              Difference]: Start difference. First operand 16157 states and 23922 transitions. Second operand  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:41,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:41,414 INFO  L93              Difference]: Finished difference Result 47825 states and 70644 transitions.
[2023-12-16 18:01:41,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:41,415 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110
[2023-12-16 18:01:41,415 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:41,455 INFO  L225             Difference]: With dead ends: 47825
[2023-12-16 18:01:41,456 INFO  L226             Difference]: Without dead ends: 31807
[2023-12-16 18:01:41,468 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:41,469 INFO  L413           NwaCegarLoop]: 167 mSDtfsCounter, 79 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:41,469 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 317 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:41,488 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31807 states.
[2023-12-16 18:01:42,132 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31807 to 31805.
[2023-12-16 18:01:42,161 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31805 states, 31804 states have (on average 1.4640296818010312) internal successors, (46562), 31804 states have internal predecessors, (46562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:42,208 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31805 states to 31805 states and 46562 transitions.
[2023-12-16 18:01:42,208 INFO  L78                 Accepts]: Start accepts. Automaton has 31805 states and 46562 transitions. Word has length 110
[2023-12-16 18:01:42,208 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:42,209 INFO  L495      AbstractCegarLoop]: Abstraction has 31805 states and 46562 transitions.
[2023-12-16 18:01:42,209 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:42,209 INFO  L276                IsEmpty]: Start isEmpty. Operand 31805 states and 46562 transitions.
[2023-12-16 18:01:42,214 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2023-12-16 18:01:42,214 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:42,215 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:42,232 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 (16)] Ended with exit code 0
[2023-12-16 18:01:42,418 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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
[2023-12-16 18:01:42,419 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:42,419 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:42,419 INFO  L85        PathProgramCache]: Analyzing trace with hash 1231313484, now seen corresponding path program 1 times
[2023-12-16 18:01:42,419 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:42,419 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056077419]
[2023-12-16 18:01:42,420 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:42,420 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
[2023-12-16 18:01:42,420 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:42,421 INFO  L229       MonitoredProcess]: Starting monitored process 17 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)
[2023-12-16 18:01:42,449 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 (17)] Waiting until timeout for monitored process
[2023-12-16 18:01:42,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:42,494 INFO  L262         TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-16 18:01:42,495 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:43,392 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:43,392 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 18:01:43,644 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:43,644 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:43,644 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056077419]
[2023-12-16 18:01:43,644 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056077419] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-16 18:01:43,644 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 18:01:43,644 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16
[2023-12-16 18:01:43,644 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531724632]
[2023-12-16 18:01:43,644 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 18:01:43,645 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-16 18:01:43,645 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:43,646 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-16 18:01:43,646 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240
[2023-12-16 18:01:43,646 INFO  L87              Difference]: Start difference. First operand 31805 states and 46562 transitions. Second operand  has 16 states, 16 states have (on average 12.375) internal successors, (198), 16 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:46,589 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:46,589 INFO  L93              Difference]: Finished difference Result 119438 states and 174399 transitions.
[2023-12-16 18:01:46,590 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2023-12-16 18:01:46,590 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 12.375) internal successors, (198), 16 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110
[2023-12-16 18:01:46,591 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:46,704 INFO  L225             Difference]: With dead ends: 119438
[2023-12-16 18:01:46,704 INFO  L226             Difference]: Without dead ends: 87767
[2023-12-16 18:01:46,729 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260
[2023-12-16 18:01:46,730 INFO  L413           NwaCegarLoop]: 314 mSDtfsCounter, 1306 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 2954 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:46,730 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 2954 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2023-12-16 18:01:46,792 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87767 states.
[2023-12-16 18:01:48,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87767 to 71693.
[2023-12-16 18:01:48,679 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71693 states, 71692 states have (on average 1.4531188975059979) internal successors, (104177), 71692 states have internal predecessors, (104177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:48,950 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71693 states to 71693 states and 104177 transitions.
[2023-12-16 18:01:48,951 INFO  L78                 Accepts]: Start accepts. Automaton has 71693 states and 104177 transitions. Word has length 110
[2023-12-16 18:01:48,951 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:48,951 INFO  L495      AbstractCegarLoop]: Abstraction has 71693 states and 104177 transitions.
[2023-12-16 18:01:48,951 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 12.375) internal successors, (198), 16 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:48,951 INFO  L276                IsEmpty]: Start isEmpty. Operand 71693 states and 104177 transitions.
[2023-12-16 18:01:48,959 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2023-12-16 18:01:48,959 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:48,959 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:48,973 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 (17)] Forceful destruction successful, exit code 0
[2023-12-16 18:01:49,161 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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
[2023-12-16 18:01:49,162 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:49,162 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:49,162 INFO  L85        PathProgramCache]: Analyzing trace with hash -365479740, now seen corresponding path program 1 times
[2023-12-16 18:01:49,162 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:49,162 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632057419]
[2023-12-16 18:01:49,162 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:49,163 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
[2023-12-16 18:01:49,163 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:49,164 INFO  L229       MonitoredProcess]: Starting monitored process 18 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)
[2023-12-16 18:01:49,165 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 (18)] Waiting until timeout for monitored process
[2023-12-16 18:01:49,234 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:49,236 INFO  L262         TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:49,237 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:49,269 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:49,269 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:49,269 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:49,269 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632057419]
[2023-12-16 18:01:49,269 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [632057419] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:49,269 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:49,269 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:49,269 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953790512]
[2023-12-16 18:01:49,270 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:49,270 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:49,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:49,270 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:49,270 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:49,270 INFO  L87              Difference]: Start difference. First operand 71693 states and 104177 transitions. Second operand  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:49,912 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:49,912 INFO  L93              Difference]: Finished difference Result 107305 states and 155819 transitions.
[2023-12-16 18:01:49,913 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:49,913 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110
[2023-12-16 18:01:49,913 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:49,956 INFO  L225             Difference]: With dead ends: 107305
[2023-12-16 18:01:49,956 INFO  L226             Difference]: Without dead ends: 35831
[2023-12-16 18:01:49,994 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:49,995 INFO  L413           NwaCegarLoop]: 197 mSDtfsCounter, 68 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:49,997 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 320 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:50,019 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35831 states.
[2023-12-16 18:01:50,903 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35831 to 35829.
[2023-12-16 18:01:50,930 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35829 states, 35828 states have (on average 1.4404655576643965) internal successors, (51609), 35828 states have internal predecessors, (51609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:50,982 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35829 states to 35829 states and 51609 transitions.
[2023-12-16 18:01:50,982 INFO  L78                 Accepts]: Start accepts. Automaton has 35829 states and 51609 transitions. Word has length 110
[2023-12-16 18:01:50,982 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:50,983 INFO  L495      AbstractCegarLoop]: Abstraction has 35829 states and 51609 transitions.
[2023-12-16 18:01:50,983 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:50,983 INFO  L276                IsEmpty]: Start isEmpty. Operand 35829 states and 51609 transitions.
[2023-12-16 18:01:50,987 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2023-12-16 18:01:50,987 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:50,987 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:51,016 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 (18)] Ended with exit code 0
[2023-12-16 18:01:51,191 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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
[2023-12-16 18:01:51,191 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:51,191 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:51,191 INFO  L85        PathProgramCache]: Analyzing trace with hash 1033491685, now seen corresponding path program 1 times
[2023-12-16 18:01:51,192 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:51,192 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237630257]
[2023-12-16 18:01:51,192 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:51,192 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
[2023-12-16 18:01:51,192 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:51,193 INFO  L229       MonitoredProcess]: Starting monitored process 19 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)
[2023-12-16 18:01:51,194 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 (19)] Waiting until timeout for monitored process
[2023-12-16 18:01:51,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:51,270 INFO  L262         TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-16 18:01:51,272 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:51,991 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:51,992 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 18:01:52,251 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:52,251 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:52,252 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237630257]
[2023-12-16 18:01:52,252 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237630257] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-16 18:01:52,252 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 18:01:52,252 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15
[2023-12-16 18:01:52,253 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977124035]
[2023-12-16 18:01:52,253 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 18:01:52,254 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-16 18:01:52,254 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:52,254 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-16 18:01:52,254 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240
[2023-12-16 18:01:52,255 INFO  L87              Difference]: Start difference. First operand 35829 states and 51609 transitions. Second operand  has 16 states, 16 states have (on average 12.5) internal successors, (200), 15 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:54,211 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:54,211 INFO  L93              Difference]: Finished difference Result 132107 states and 190604 transitions.
[2023-12-16 18:01:54,212 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-16 18:01:54,212 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 12.5) internal successors, (200), 15 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110
[2023-12-16 18:01:54,212 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:54,329 INFO  L225             Difference]: With dead ends: 132107
[2023-12-16 18:01:54,329 INFO  L226             Difference]: Without dead ends: 96497
[2023-12-16 18:01:54,351 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812
[2023-12-16 18:01:54,352 INFO  L413           NwaCegarLoop]: 179 mSDtfsCounter, 1491 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:54,352 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1040 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-16 18:01:54,405 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 96497 states.
[2023-12-16 18:01:56,488 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 96497 to 83725.
[2023-12-16 18:01:56,545 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83725 states, 83724 states have (on average 1.4344393483350055) internal successors, (120097), 83724 states have internal predecessors, (120097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:56,668 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83725 states to 83725 states and 120097 transitions.
[2023-12-16 18:01:56,669 INFO  L78                 Accepts]: Start accepts. Automaton has 83725 states and 120097 transitions. Word has length 110
[2023-12-16 18:01:56,669 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:56,669 INFO  L495      AbstractCegarLoop]: Abstraction has 83725 states and 120097 transitions.
[2023-12-16 18:01:56,669 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 12.5) internal successors, (200), 15 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:56,669 INFO  L276                IsEmpty]: Start isEmpty. Operand 83725 states and 120097 transitions.
[2023-12-16 18:01:56,675 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2023-12-16 18:01:56,675 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:56,675 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:56,678 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 (19)] Forceful destruction successful, exit code 0
[2023-12-16 18:01:56,878 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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
[2023-12-16 18:01:56,878 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:56,879 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:56,879 INFO  L85        PathProgramCache]: Analyzing trace with hash 330892546, now seen corresponding path program 1 times
[2023-12-16 18:01:56,879 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:56,879 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977059941]
[2023-12-16 18:01:56,879 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:56,879 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
[2023-12-16 18:01:56,879 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:56,880 INFO  L229       MonitoredProcess]: Starting monitored process 20 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)
[2023-12-16 18:01:56,884 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 (20)] Waiting until timeout for monitored process
[2023-12-16 18:01:56,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:56,961 INFO  L262         TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:01:56,962 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:01:56,991 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:01:56,991 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:01:56,991 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:01:56,991 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977059941]
[2023-12-16 18:01:56,991 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977059941] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:01:56,991 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:01:56,992 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:01:56,992 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046608469]
[2023-12-16 18:01:56,992 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:01:56,992 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:01:56,992 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:01:56,992 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:01:56,992 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:56,993 INFO  L87              Difference]: Start difference. First operand 83725 states and 120097 transitions. Second operand  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:57,957 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:01:57,957 INFO  L93              Difference]: Finished difference Result 125217 states and 179411 transitions.
[2023-12-16 18:01:57,958 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:01:57,958 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111
[2023-12-16 18:01:57,958 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:01:58,010 INFO  L225             Difference]: With dead ends: 125217
[2023-12-16 18:01:58,010 INFO  L226             Difference]: Without dead ends: 41791
[2023-12-16 18:01:58,039 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:01:58,039 INFO  L413           NwaCegarLoop]: 188 mSDtfsCounter, 61 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:01:58,039 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 301 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:01:58,064 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41791 states.
[2023-12-16 18:01:59,039 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41791 to 41789.
[2023-12-16 18:01:59,074 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41789 states, 41788 states have (on average 1.4209103091796689) internal successors, (59377), 41788 states have internal predecessors, (59377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:59,230 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41789 states to 41789 states and 59377 transitions.
[2023-12-16 18:01:59,230 INFO  L78                 Accepts]: Start accepts. Automaton has 41789 states and 59377 transitions. Word has length 111
[2023-12-16 18:01:59,230 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:01:59,230 INFO  L495      AbstractCegarLoop]: Abstraction has 41789 states and 59377 transitions.
[2023-12-16 18:01:59,230 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:01:59,230 INFO  L276                IsEmpty]: Start isEmpty. Operand 41789 states and 59377 transitions.
[2023-12-16 18:01:59,233 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2023-12-16 18:01:59,233 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:01:59,234 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:01:59,238 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 (20)] Forceful destruction successful, exit code 0
[2023-12-16 18:01:59,439 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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
[2023-12-16 18:01:59,439 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:01:59,439 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:01:59,439 INFO  L85        PathProgramCache]: Analyzing trace with hash -1840719453, now seen corresponding path program 1 times
[2023-12-16 18:01:59,440 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:01:59,440 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386846637]
[2023-12-16 18:01:59,440 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:01:59,440 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
[2023-12-16 18:01:59,440 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:01:59,441 INFO  L229       MonitoredProcess]: Starting monitored process 21 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)
[2023-12-16 18:01:59,469 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 (21)] Waiting until timeout for monitored process
[2023-12-16 18:01:59,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:01:59,515 INFO  L262         TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-16 18:01:59,517 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:02:00,051 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:02:00,052 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 18:02:00,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:02:00,303 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:02:00,303 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386846637]
[2023-12-16 18:02:00,303 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [386846637] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-16 18:02:00,303 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 18:02:00,304 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15
[2023-12-16 18:02:00,304 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690173340]
[2023-12-16 18:02:00,304 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 18:02:00,304 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-16 18:02:00,304 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:02:00,305 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-16 18:02:00,305 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240
[2023-12-16 18:02:00,305 INFO  L87              Difference]: Start difference. First operand 41789 states and 59377 transitions. Second operand  has 16 states, 16 states have (on average 12.875) internal successors, (206), 15 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:02:02,728 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:02:02,728 INFO  L93              Difference]: Finished difference Result 175493 states and 249946 transitions.
[2023-12-16 18:02:02,728 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2023-12-16 18:02:02,729 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 12.875) internal successors, (206), 15 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111
[2023-12-16 18:02:02,729 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:02:02,894 INFO  L225             Difference]: With dead ends: 175493
[2023-12-16 18:02:02,895 INFO  L226             Difference]: Without dead ends: 134003
[2023-12-16 18:02:02,922 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812
[2023-12-16 18:02:02,923 INFO  L413           NwaCegarLoop]: 138 mSDtfsCounter, 1703 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-16 18:02:02,923 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 736 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-16 18:02:03,001 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 134003 states.
[2023-12-16 18:02:05,767 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 134003 to 113359.
[2023-12-16 18:02:05,873 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113359 states, 113358 states have (on average 1.4132130065809205) internal successors, (160199), 113358 states have internal predecessors, (160199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:02:06,054 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113359 states to 113359 states and 160199 transitions.
[2023-12-16 18:02:06,054 INFO  L78                 Accepts]: Start accepts. Automaton has 113359 states and 160199 transitions. Word has length 111
[2023-12-16 18:02:06,054 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:02:06,054 INFO  L495      AbstractCegarLoop]: Abstraction has 113359 states and 160199 transitions.
[2023-12-16 18:02:06,054 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 12.875) internal successors, (206), 15 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:02:06,055 INFO  L276                IsEmpty]: Start isEmpty. Operand 113359 states and 160199 transitions.
[2023-12-16 18:02:06,060 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2023-12-16 18:02:06,061 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:02:06,061 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:02:06,064 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 (21)] Forceful destruction successful, exit code 0
[2023-12-16 18:02:06,263 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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
[2023-12-16 18:02:06,264 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:02:06,264 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:02:06,264 INFO  L85        PathProgramCache]: Analyzing trace with hash 1216410690, now seen corresponding path program 1 times
[2023-12-16 18:02:06,264 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:02:06,264 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600634881]
[2023-12-16 18:02:06,264 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:02:06,264 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
[2023-12-16 18:02:06,265 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:02:06,265 INFO  L229       MonitoredProcess]: Starting monitored process 22 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)
[2023-12-16 18:02:06,268 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 (22)] Waiting until timeout for monitored process
[2023-12-16 18:02:06,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:02:06,340 INFO  L262         TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-16 18:02:06,341 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:02:06,374 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:02:06,375 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 18:02:06,375 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:02:06,375 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600634881]
[2023-12-16 18:02:06,375 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600634881] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 18:02:06,375 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 18:02:06,375 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 18:02:06,375 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387374709]
[2023-12-16 18:02:06,375 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 18:02:06,375 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-16 18:02:06,375 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:02:06,376 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-16 18:02:06,376 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:02:06,376 INFO  L87              Difference]: Start difference. First operand 113359 states and 160199 transitions. Second operand  has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:02:10,135 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:02:10,135 INFO  L93              Difference]: Finished difference Result 336731 states and 474433 transitions.
[2023-12-16 18:02:10,135 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-16 18:02:10,135 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112
[2023-12-16 18:02:10,136 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:02:10,585 INFO  L225             Difference]: With dead ends: 336731
[2023-12-16 18:02:10,586 INFO  L226             Difference]: Without dead ends: 223881
[2023-12-16 18:02:10,654 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-16 18:02:10,655 INFO  L413           NwaCegarLoop]: 180 mSDtfsCounter, 78 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 18:02:10,656 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 330 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 18:02:10,786 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 223881 states.
[2023-12-16 18:02:15,988 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 223881 to 223879.
[2023-12-16 18:02:16,136 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 223879 states, 223878 states have (on average 1.3968277365350772) internal successors, (312719), 223878 states have internal predecessors, (312719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:02:16,741 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 223879 states to 223879 states and 312719 transitions.
[2023-12-16 18:02:16,741 INFO  L78                 Accepts]: Start accepts. Automaton has 223879 states and 312719 transitions. Word has length 112
[2023-12-16 18:02:16,741 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-16 18:02:16,741 INFO  L495      AbstractCegarLoop]: Abstraction has 223879 states and 312719 transitions.
[2023-12-16 18:02:16,742 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:02:16,742 INFO  L276                IsEmpty]: Start isEmpty. Operand 223879 states and 312719 transitions.
[2023-12-16 18:02:16,753 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2023-12-16 18:02:16,754 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-16 18:02:16,754 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:02:16,756 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 (22)] Forceful destruction successful, exit code 0
[2023-12-16 18:02:16,957 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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
[2023-12-16 18:02:16,957 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 18:02:16,957 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 18:02:16,957 INFO  L85        PathProgramCache]: Analyzing trace with hash 778402096, now seen corresponding path program 1 times
[2023-12-16 18:02:16,957 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 18:02:16,957 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192771077]
[2023-12-16 18:02:16,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 18:02:16,958 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
[2023-12-16 18:02:16,958 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 18:02:16,959 INFO  L229       MonitoredProcess]: Starting monitored process 23 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)
[2023-12-16 18:02:16,960 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 (23)] Waiting until timeout for monitored process
[2023-12-16 18:02:17,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 18:02:17,033 INFO  L262         TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-16 18:02:17,035 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 18:02:17,898 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:02:17,898 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 18:02:18,223 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 18:02:18,223 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 18:02:18,223 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192771077]
[2023-12-16 18:02:18,224 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [192771077] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-16 18:02:18,224 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 18:02:18,224 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16
[2023-12-16 18:02:18,224 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750425728]
[2023-12-16 18:02:18,224 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 18:02:18,225 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-16 18:02:18,225 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 18:02:18,225 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-16 18:02:18,225 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240
[2023-12-16 18:02:18,225 INFO  L87              Difference]: Start difference. First operand 223879 states and 312719 transitions. Second operand  has 16 states, 16 states have (on average 13.125) internal successors, (210), 16 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-16 18:02:29,221 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 18:02:29,222 INFO  L93              Difference]: Finished difference Result 794857 states and 1107463 transitions.
[2023-12-16 18:02:29,223 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2023-12-16 18:02:29,223 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 13.125) internal successors, (210), 16 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112
[2023-12-16 18:02:29,223 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 18:02:30,108 INFO  L225             Difference]: With dead ends: 794857
[2023-12-16 18:02:30,108 INFO  L226             Difference]: Without dead ends: 571457
[2023-12-16 18:02:30,260 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260
[2023-12-16 18:02:30,261 INFO  L413           NwaCegarLoop]: 250 mSDtfsCounter, 1764 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 2378 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2023-12-16 18:02:30,261 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 2378 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2023-12-16 18:02:30,589 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 571457 states.
Received shutdown request...
[2023-12-16 18:02:32,727 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-16 18:02:32,732 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 (23)] Forceful destruction successful, exit code 0
[2023-12-16 18:02:32,735 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 18:02:32,750 WARN  L340       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 (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 18:02:32,929 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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
[2023-12-16 18:02:32,930 WARN  L619      AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa.
[2023-12-16 18:02:32,934 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 18:02:32,936 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-16 18:02:32,937 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:02:32 BoogieIcfgContainer
[2023-12-16 18:02:32,938 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-16 18:02:32,938 INFO  L158              Benchmark]: Toolchain (without parser) took 66059.74ms. Allocated memory was 155.2MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 113.0MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB.
[2023-12-16 18:02:32,938 INFO  L158              Benchmark]: CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 18:02:32,942 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 284.92ms. Allocated memory is still 155.2MB. Free memory was 113.0MB in the beginning and 94.5MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB.
[2023-12-16 18:02:32,946 INFO  L158              Benchmark]: Boogie Procedure Inliner took 35.69ms. Allocated memory is still 155.2MB. Free memory was 94.5MB in the beginning and 91.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-16 18:02:32,947 INFO  L158              Benchmark]: Boogie Preprocessor took 40.36ms. Allocated memory is still 155.2MB. Free memory was 91.8MB in the beginning and 87.9MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
[2023-12-16 18:02:32,947 INFO  L158              Benchmark]: RCFGBuilder took 673.60ms. Allocated memory is still 155.2MB. Free memory was 87.9MB in the beginning and 110.1MB in the end (delta: -22.2MB). Peak memory consumption was 26.1MB. Max. memory is 8.0GB.
[2023-12-16 18:02:32,947 INFO  L158              Benchmark]: TraceAbstraction took 65019.96ms. Allocated memory was 155.2MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 109.6MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB.
[2023-12-16 18:02:32,948 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 284.92ms. Allocated memory is still 155.2MB. Free memory was 113.0MB in the beginning and 94.5MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 35.69ms. Allocated memory is still 155.2MB. Free memory was 94.5MB in the beginning and 91.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 40.36ms. Allocated memory is still 155.2MB. Free memory was 91.8MB in the beginning and 87.9MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
 * RCFGBuilder took 673.60ms. Allocated memory is still 155.2MB. Free memory was 87.9MB in the beginning and 110.1MB in the end (delta: -22.2MB). Peak memory consumption was 26.1MB. Max. memory is 8.0GB.
 * TraceAbstraction took 65019.96ms. Allocated memory was 155.2MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 109.6MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 566]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 566). Cancelled while executing MinimizeSevpa.
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.0s, OverallIterations: 22, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 29.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11780 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11780 mSDsluCounter, 15005 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10633 mSDsCounter, 160 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5694 IncrementalHoareTripleChecker+Invalid, 5854 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 160 mSolverCounterUnsat, 4372 mSDtfsCounter, 5694 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2755 GetRequests, 2557 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223879occurred in iteration=21, InterpolantAutomatonStates: 168, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 21.4s AutomataMinimizationTime, 22 MinimizatonAttempts, 71224 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 2032 NumberOfCodeBlocks, 2032 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2664 ConstructedInterpolants, 512 QuantifiedInterpolants, 19086 SizeOfPredicates, 50 NumberOfNonLiveVariables, 3841 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 28 InterpolantComputations, 16 PerfectInterpolantSequences, 287/351 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown