/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-77.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 07:26:24,148 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-24 07:26:24,200 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-24 07:26:24,203 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 07:26:24,203 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 07:26:24,216 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 07:26:24,216 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 07:26:24,217 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 07:26:24,217 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 07:26:24,217 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-24 07:26:24,218 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 07:26:24,218 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 07:26:24,218 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 07:26:24,218 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-24 07:26:24,219 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-24 07:26:24,219 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 07:26:24,219 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-24 07:26:24,219 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-24 07:26:24,219 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-24 07:26:24,220 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-24 07:26:24,220 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 07:26:24,220 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 07:26:24,221 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 07:26:24,221 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-24 07:26:24,221 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-24 07:26:24,221 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-24 07:26:24,222 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 07:26:24,222 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-24 07:26:24,222 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-24 07:26:24,222 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-24 07:26:24,222 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 07:26:24,223 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-24 07:26:24,223 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 07:26:24,223 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-24 07:26:24,223 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 07:26:24,224 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 07:26:24,224 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 07:26:24,224 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 07:26:24,224 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-24 07:26:24,224 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 07:26:24,225 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 07:26:24,225 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 07:26:24,225 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 07:26:24,225 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 07:26:24,225 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 07:26:24,225 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-24 07:26:24,226 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 07:26:24,363 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 07:26:24,378 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 07:26:24,380 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 07:26:24,381 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-24 07:26:24,381 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-24 07:26:24,383 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-77.i
[2023-12-24 07:26:25,522 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-24 07:26:25,789 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-24 07:26:25,790 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-77.i
[2023-12-24 07:26:25,804 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95a0a336d/25aae69a54fa4f228a67d28f3b2c9bf0/FLAGe90a0815e
[2023-12-24 07:26:25,814 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95a0a336d/25aae69a54fa4f228a67d28f3b2c9bf0
[2023-12-24 07:26:25,816 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 07:26:25,817 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 07:26:25,818 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 07:26:25,818 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 07:26:25,821 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 07:26:25,822 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:26:25" (1/1) ...
[2023-12-24 07:26:25,822 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6230da96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:25, skipping insertion in model container
[2023-12-24 07:26:25,822 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 07:26:25" (1/1) ...
[2023-12-24 07:26:25,862 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-24 07:26:25,961 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-77.i[916,929]
[2023-12-24 07:26:26,080 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 07:26:26,108 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-24 07:26:26,119 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-77.i[916,929]
[2023-12-24 07:26:26,208 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-24 07:26:26,229 INFO  L206         MainTranslator]: Completed translation
[2023-12-24 07:26:26,231 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26 WrapperNode
[2023-12-24 07:26:26,232 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 07:26:26,233 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 07:26:26,233 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 07:26:26,233 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 07:26:26,238 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,266 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,311 INFO  L138                Inliner]: procedures = 27, calls = 72, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 379
[2023-12-24 07:26:26,312 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 07:26:26,312 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 07:26:26,312 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 07:26:26,312 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 07:26:26,320 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,320 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,324 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,341 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-24 07:26:26,341 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,342 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,354 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,357 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,359 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,361 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,398 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 07:26:26,399 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 07:26:26,399 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 07:26:26,399 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-24 07:26:26,400 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (1/1) ...
[2023-12-24 07:26:26,416 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 07:26:26,427 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 07:26:26,439 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-24 07:26:26,456 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-24 07:26:26,474 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 07:26:26,474 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 07:26:26,474 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 07:26:26,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 07:26:26,475 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 07:26:26,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 07:26:26,589 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-24 07:26:26,593 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 07:26:46,950 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-24 07:26:47,018 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 07:26:47,019 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 07:26:47,019 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:26:47 BoogieIcfgContainer
[2023-12-24 07:26:47,019 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 07:26:47,021 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 07:26:47,022 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 07:26:47,024 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-24 07:26:47,024 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 07:26:25" (1/3) ...
[2023-12-24 07:26:47,025 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c37fe16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:26:47, skipping insertion in model container
[2023-12-24 07:26:47,026 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 07:26:26" (2/3) ...
[2023-12-24 07:26:47,026 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c37fe16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 07:26:47, skipping insertion in model container
[2023-12-24 07:26:47,026 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 07:26:47" (3/3) ...
[2023-12-24 07:26:47,027 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-77.i
[2023-12-24 07:26:47,040 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 07:26:47,041 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 07:26:47,084 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 07:26:47,090 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;@331eacfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 07:26:47,090 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 07:26:47,098 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 157 states, 95 states have (on average 1.4947368421052631) internal successors, (142), 96 states have internal predecessors, (142), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59)
[2023-12-24 07:26:47,125 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 368
[2023-12-24 07:26:47,126 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 07:26:47,127 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 07:26:47,127 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 07:26:47,131 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 07:26:47,131 INFO  L85        PathProgramCache]: Analyzing trace with hash 1730744482, now seen corresponding path program 1 times
[2023-12-24 07:26:47,146 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 07:26:47,147 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430513223]
[2023-12-24 07:26:47,147 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 07:26:47,148 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 07:26:47,148 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 07:26:47,150 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 07:26:47,176 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-24 07:26:48,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 07:26:48,534 INFO  L262         TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 07:26:48,547 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 07:26:48,652 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 980 proven. 0 refuted. 0 times theorem prover too weak. 5864 trivial. 0 not checked.
[2023-12-24 07:26:48,652 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 07:26:48,653 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 07:26:48,653 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430513223]
[2023-12-24 07:26:48,653 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [430513223] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 07:26:48,653 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 07:26:48,653 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 07:26:48,655 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743163828]
[2023-12-24 07:26:48,655 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 07:26:48,658 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 07:26:48,658 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 07:26:48,675 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 07:26:48,675 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 07:26:48,677 INFO  L87              Difference]: Start difference. First operand  has 157 states, 95 states have (on average 1.4947368421052631) internal successors, (142), 96 states have internal predecessors, (142), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand  has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59)
[2023-12-24 07:26:53,411 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:26:53,412 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 07:26:53,413 INFO  L93              Difference]: Finished difference Result 311 states and 577 transitions.
[2023-12-24 07:26:53,763 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-24 07:26:53,764 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 367
[2023-12-24 07:26:53,765 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 07:26:53,773 INFO  L225             Difference]: With dead ends: 311
[2023-12-24 07:26:53,773 INFO  L226             Difference]: Without dead ends: 155
[2023-12-24 07:26:53,777 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 07:26:53,780 INFO  L413           NwaCegarLoop]: 250 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2023-12-24 07:26:53,780 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 250 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time]
[2023-12-24 07:26:53,794 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 155 states.
[2023-12-24 07:26:53,824 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155.
[2023-12-24 07:26:53,825 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 155 states, 94 states have (on average 1.4361702127659575) internal successors, (135), 94 states have internal predecessors, (135), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59)
[2023-12-24 07:26:53,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 253 transitions.
[2023-12-24 07:26:53,828 INFO  L78                 Accepts]: Start accepts. Automaton has 155 states and 253 transitions. Word has length 367
[2023-12-24 07:26:53,828 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 07:26:53,828 INFO  L495      AbstractCegarLoop]: Abstraction has 155 states and 253 transitions.
[2023-12-24 07:26:53,829 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59)
[2023-12-24 07:26:53,829 INFO  L276                IsEmpty]: Start isEmpty. Operand 155 states and 253 transitions.
[2023-12-24 07:26:53,834 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 368
[2023-12-24 07:26:53,834 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 07:26:53,835 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 07:26:53,875 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-24 07:26:54,047 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 07:26:54,048 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 07:26:54,049 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 07:26:54,049 INFO  L85        PathProgramCache]: Analyzing trace with hash 1702314650, now seen corresponding path program 1 times
[2023-12-24 07:26:54,051 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 07:26:54,051 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167008489]
[2023-12-24 07:26:54,051 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 07:26:54,051 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 07:26:54,052 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 07:26:54,054 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 07:26:54,058 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-24 07:26:55,680 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 07:26:55,755 INFO  L262         TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-24 07:26:55,769 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 07:27:00,875 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 3270 proven. 108 refuted. 0 times theorem prover too weak. 3466 trivial. 0 not checked.
[2023-12-24 07:27:00,876 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 07:27:03,206 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 66 proven. 108 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked.
[2023-12-24 07:27:03,207 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 07:27:03,208 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167008489]
[2023-12-24 07:27:03,208 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [167008489] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 07:27:03,209 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 07:27:03,209 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9
[2023-12-24 07:27:03,210 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270971049]
[2023-12-24 07:27:03,210 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 07:27:03,213 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-24 07:27:03,214 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 07:27:03,216 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-24 07:27:03,216 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2023-12-24 07:27:03,216 INFO  L87              Difference]: Start difference. First operand 155 states and 253 transitions. Second operand  has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96)
[2023-12-24 07:27:10,833 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:16,651 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:20,664 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:24,678 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:28,685 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:32,693 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:36,699 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:40,706 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:44,717 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:48,720 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:52,722 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:27:56,726 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:00,733 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:04,744 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:08,751 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:12,765 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:16,773 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:20,784 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:24,787 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:26,347 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 07:28:26,348 INFO  L93              Difference]: Finished difference Result 541 states and 882 transitions.
[2023-12-24 07:28:26,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2023-12-24 07:28:26,352 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 367
[2023-12-24 07:28:26,353 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 07:28:26,356 INFO  L225             Difference]: With dead ends: 541
[2023-12-24 07:28:26,356 INFO  L226             Difference]: Without dead ends: 387
[2023-12-24 07:28:26,357 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 725 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420
[2023-12-24 07:28:26,358 INFO  L413           NwaCegarLoop]: 319 mSDtfsCounter, 379 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 183 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.7s IncrementalHoareTripleChecker+Time
[2023-12-24 07:28:26,358 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 1279 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 526 Invalid, 18 Unknown, 0 Unchecked, 81.7s Time]
[2023-12-24 07:28:26,359 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 387 states.
[2023-12-24 07:28:26,388 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 181.
[2023-12-24 07:28:26,389 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 181 states, 119 states have (on average 1.4201680672268908) internal successors, (169), 119 states have internal predecessors, (169), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59)
[2023-12-24 07:28:26,390 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 287 transitions.
[2023-12-24 07:28:26,390 INFO  L78                 Accepts]: Start accepts. Automaton has 181 states and 287 transitions. Word has length 367
[2023-12-24 07:28:26,391 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 07:28:26,391 INFO  L495      AbstractCegarLoop]: Abstraction has 181 states and 287 transitions.
[2023-12-24 07:28:26,391 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 2 states have call successors, (95), 2 states have call predecessors, (95), 4 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96)
[2023-12-24 07:28:26,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 181 states and 287 transitions.
[2023-12-24 07:28:26,394 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 369
[2023-12-24 07:28:26,394 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 07:28:26,394 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 07:28:26,433 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-24 07:28:26,612 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 07:28:26,613 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 07:28:26,613 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 07:28:26,613 INFO  L85        PathProgramCache]: Analyzing trace with hash 1126868780, now seen corresponding path program 1 times
[2023-12-24 07:28:26,614 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 07:28:26,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119919606]
[2023-12-24 07:28:26,614 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 07:28:26,614 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 07:28:26,615 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 07:28:26,617 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 07:28:26,618 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-24 07:28:28,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 07:28:28,113 INFO  L262         TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 07:28:28,118 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 07:28:33,933 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 2550 proven. 132 refuted. 0 times theorem prover too weak. 4162 trivial. 0 not checked.
[2023-12-24 07:28:33,934 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 07:28:36,687 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 42 proven. 132 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked.
[2023-12-24 07:28:36,687 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 07:28:36,687 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119919606]
[2023-12-24 07:28:36,687 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [119919606] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 07:28:36,688 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 07:28:36,688 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-24 07:28:36,688 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056556362]
[2023-12-24 07:28:36,688 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 07:28:36,689 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-24 07:28:36,689 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 07:28:36,689 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-24 07:28:36,689 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-24 07:28:36,690 INFO  L87              Difference]: Start difference. First operand 181 states and 287 transitions. Second operand  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104)
[2023-12-24 07:28:45,237 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:49,251 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:53,262 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:28:54,321 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 07:28:54,322 INFO  L93              Difference]: Finished difference Result 369 states and 577 transitions.
[2023-12-24 07:28:54,322 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-24 07:28:54,322 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 368
[2023-12-24 07:28:54,323 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 07:28:54,324 INFO  L225             Difference]: With dead ends: 369
[2023-12-24 07:28:54,324 INFO  L226             Difference]: Without dead ends: 189
[2023-12-24 07:28:54,325 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 728 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-24 07:28:54,326 INFO  L413           NwaCegarLoop]: 197 mSDtfsCounter, 252 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time
[2023-12-24 07:28:54,326 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 428 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 366 Invalid, 3 Unknown, 0 Unchecked, 17.2s Time]
[2023-12-24 07:28:54,327 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 189 states.
[2023-12-24 07:28:54,341 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 184.
[2023-12-24 07:28:54,342 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 184 states, 107 states have (on average 1.280373831775701) internal successors, (137), 108 states have internal predecessors, (137), 73 states have call successors, (73), 3 states have call predecessors, (73), 3 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73)
[2023-12-24 07:28:54,343 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 283 transitions.
[2023-12-24 07:28:54,343 INFO  L78                 Accepts]: Start accepts. Automaton has 184 states and 283 transitions. Word has length 368
[2023-12-24 07:28:54,343 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 07:28:54,344 INFO  L495      AbstractCegarLoop]: Abstraction has 184 states and 283 transitions.
[2023-12-24 07:28:54,344 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104)
[2023-12-24 07:28:54,344 INFO  L276                IsEmpty]: Start isEmpty. Operand 184 states and 283 transitions.
[2023-12-24 07:28:54,346 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 373
[2023-12-24 07:28:54,346 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 07:28:54,346 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 07:28:54,384 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-24 07:28:54,546 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 07:28:54,547 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 07:28:54,547 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 07:28:54,547 INFO  L85        PathProgramCache]: Analyzing trace with hash -1980275581, now seen corresponding path program 1 times
[2023-12-24 07:28:54,548 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 07:28:54,548 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349534520]
[2023-12-24 07:28:54,548 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 07:28:54,548 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 07:28:54,548 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 07:28:54,549 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 07:28:54,580 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-24 07:28:55,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 07:28:56,027 INFO  L262         TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 07:28:56,032 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 07:29:02,507 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 2424 proven. 135 refuted. 0 times theorem prover too weak. 4285 trivial. 0 not checked.
[2023-12-24 07:29:02,507 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 07:29:05,857 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 39 proven. 135 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked.
[2023-12-24 07:29:05,857 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 07:29:05,857 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349534520]
[2023-12-24 07:29:05,857 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349534520] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 07:29:05,857 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 07:29:05,858 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-24 07:29:05,858 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204886874]
[2023-12-24 07:29:05,858 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 07:29:05,859 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-24 07:29:05,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 07:29:05,860 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-24 07:29:05,860 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-24 07:29:05,860 INFO  L87              Difference]: Start difference. First operand 184 states and 283 transitions. Second operand  has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105)
[2023-12-24 07:29:15,462 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:29:19,464 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:29:23,466 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-24 07:29:23,470 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 07:29:23,470 INFO  L93              Difference]: Finished difference Result 356 states and 535 transitions.
[2023-12-24 07:29:23,734 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-24 07:29:23,735 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) Word has length 372
[2023-12-24 07:29:23,736 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 07:29:23,738 INFO  L225             Difference]: With dead ends: 356
[2023-12-24 07:29:23,738 INFO  L226             Difference]: Without dead ends: 195
[2023-12-24 07:29:23,738 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 736 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210
[2023-12-24 07:29:23,740 INFO  L413           NwaCegarLoop]: 160 mSDtfsCounter, 238 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 174 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time
[2023-12-24 07:29:23,740 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 357 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 332 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time]
[2023-12-24 07:29:23,741 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 195 states.
[2023-12-24 07:29:23,753 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 182.
[2023-12-24 07:29:23,753 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 182 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 107 states have internal predecessors, (129), 71 states have call successors, (71), 4 states have call predecessors, (71), 4 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71)
[2023-12-24 07:29:23,754 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 271 transitions.
[2023-12-24 07:29:23,755 INFO  L78                 Accepts]: Start accepts. Automaton has 182 states and 271 transitions. Word has length 372
[2023-12-24 07:29:23,755 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-24 07:29:23,755 INFO  L495      AbstractCegarLoop]: Abstraction has 182 states and 271 transitions.
[2023-12-24 07:29:23,756 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105)
[2023-12-24 07:29:23,756 INFO  L276                IsEmpty]: Start isEmpty. Operand 182 states and 271 transitions.
[2023-12-24 07:29:23,757 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 373
[2023-12-24 07:29:23,757 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-24 07:29:23,757 INFO  L195           NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 07:29:23,793 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 (5)] Forceful destruction successful, exit code 0
[2023-12-24 07:29:23,981 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
[2023-12-24 07:29:23,982 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 07:29:23,982 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 07:29:23,982 INFO  L85        PathProgramCache]: Analyzing trace with hash 1580657459, now seen corresponding path program 1 times
[2023-12-24 07:29:23,983 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 07:29:23,983 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686969220]
[2023-12-24 07:29:23,983 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 07:29:23,983 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 07:29:23,983 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 07:29:23,985 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)
[2023-12-24 07:29:23,986 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
[2023-12-24 07:29:30,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 07:29:30,507 INFO  L262         TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-24 07:29:30,514 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 07:30:33,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 3751 proven. 801 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked.
[2023-12-24 07:30:33,306 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 07:30:57,615 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 07:30:57,615 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686969220]
[2023-12-24 07:30:57,615 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [686969220] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 07:30:57,615 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [213735520]
[2023-12-24 07:30:57,615 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 07:30:57,615 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-24 07:30:57,616 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-24 07:30:57,655 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-24 07:30:57,656 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process
[2023-12-24 07:32:54,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 07:32:54,304 INFO  L262         TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 31 conjunts are in the unsatisfiable core
[2023-12-24 07:32:54,317 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 07:34:23,662 INFO  L134       CoverageAnalysis]: Checked inductivity of 6844 backedges. 3751 proven. 801 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked.
[2023-12-24 07:34:23,662 INFO  L327         TraceCheckSpWp]: Computing backward predicates...