/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-69.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 21:51:52,261 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 21:51:52,341 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-23 21:51:52,347 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 21:51:52,347 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 21:51:52,375 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 21:51:52,376 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 21:51:52,376 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 21:51:52,376 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 21:51:52,380 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 21:51:52,380 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 21:51:52,380 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 21:51:52,381 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 21:51:52,382 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 21:51:52,382 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 21:51:52,382 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 21:51:52,383 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 21:51:52,383 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 21:51:52,383 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 21:51:52,383 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 21:51:52,383 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 21:51:52,384 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 21:51:52,384 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 21:51:52,384 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 21:51:52,384 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 21:51:52,384 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 21:51:52,385 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 21:51:52,385 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 21:51:52,385 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 21:51:52,385 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 21:51:52,386 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 21:51:52,386 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 21:51:52,386 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 21:51:52,387 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 21:51:52,387 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 21:51:52,387 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 21:51:52,387 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 21:51:52,387 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 21:51:52,387 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 21:51:52,387 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 21:51:52,388 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 21:51:52,388 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 21:51:52,388 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 21:51:52,388 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 21:51:52,388 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 21:51:52,388 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 21:51:52,389 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 21:51:52,610 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 21:51:52,629 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 21:51:52,631 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 21:51:52,632 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 21:51:52,636 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 21:51:52,637 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-69.i
[2023-12-23 21:51:53,713 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 21:51:53,903 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 21:51:53,904 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-69.i
[2023-12-23 21:51:53,912 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5991f4a4/9e6564d556a74934b3b827a27d73f105/FLAG8c9e4df82
[2023-12-23 21:51:53,924 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5991f4a4/9e6564d556a74934b3b827a27d73f105
[2023-12-23 21:51:53,926 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 21:51:53,927 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 21:51:53,928 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 21:51:53,929 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 21:51:53,935 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 21:51:53,935 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:51:53" (1/1) ...
[2023-12-23 21:51:53,936 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac6a66b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:53, skipping insertion in model container
[2023-12-23 21:51:53,936 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:51:53" (1/1) ...
[2023-12-23 21:51:53,966 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 21:51:54,091 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-69.i[916,929]
[2023-12-23 21:51:54,179 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 21:51:54,191 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 21:51:54,201 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-69.i[916,929]
[2023-12-23 21:51:54,244 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 21:51:54,258 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 21:51:54,258 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54 WrapperNode
[2023-12-23 21:51:54,258 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 21:51:54,259 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 21:51:54,259 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 21:51:54,259 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 21:51:54,264 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,275 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,307 INFO  L138                Inliner]: procedures = 27, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 200
[2023-12-23 21:51:54,308 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 21:51:54,309 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 21:51:54,309 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 21:51:54,309 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 21:51:54,318 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,318 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,325 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,348 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-23 21:51:54,348 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,348 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,368 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,371 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,373 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,374 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,394 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 21:51:54,395 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 21:51:54,395 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 21:51:54,395 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 21:51:54,396 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (1/1) ...
[2023-12-23 21:51:54,408 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 21:51:54,417 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 21:51:54,437 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-23 21:51:54,448 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-23 21:51:54,466 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 21:51:54,466 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 21:51:54,467 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 21:51:54,468 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 21:51:54,468 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 21:51:54,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 21:51:54,577 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 21:51:54,579 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 21:52:10,079 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 21:52:10,141 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 21:52:10,141 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 21:52:10,142 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:52:10 BoogieIcfgContainer
[2023-12-23 21:52:10,142 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 21:52:10,144 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 21:52:10,144 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 21:52:10,147 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 21:52:10,147 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:51:53" (1/3) ...
[2023-12-23 21:52:10,148 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ae8d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:52:10, skipping insertion in model container
[2023-12-23 21:52:10,148 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:51:54" (2/3) ...
[2023-12-23 21:52:10,148 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ae8d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:52:10, skipping insertion in model container
[2023-12-23 21:52:10,148 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:52:10" (3/3) ...
[2023-12-23 21:52:10,149 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-69.i
[2023-12-23 21:52:10,162 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 21:52:10,163 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 21:52:10,201 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 21:52:10,206 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;@61bb66a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 21:52:10,206 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 21:52:10,209 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 80 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 50 states have internal predecessors, (76), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2023-12-23 21:52:10,224 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2023-12-23 21:52:10,224 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 21:52:10,225 INFO  L195           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 21:52:10,225 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 21:52:10,230 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 21:52:10,230 INFO  L85        PathProgramCache]: Analyzing trace with hash -1052570691, now seen corresponding path program 1 times
[2023-12-23 21:52:10,242 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 21:52:10,242 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780301798]
[2023-12-23 21:52:10,242 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:52:10,243 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:52:10,243 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 21:52:10,244 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 21:52:10,246 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-23 21:52:10,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:52:10,910 INFO  L262         TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 21:52:10,919 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 21:52:11,010 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 758 proven. 0 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked.
[2023-12-23 21:52:11,011 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 21:52:11,011 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 21:52:11,011 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780301798]
[2023-12-23 21:52:11,012 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [780301798] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 21:52:11,012 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 21:52:11,012 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 21:52:11,014 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428916797]
[2023-12-23 21:52:11,014 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 21:52:11,019 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 21:52:11,019 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 21:52:11,046 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 21:52:11,046 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 21:52:11,049 INFO  L87              Difference]: Start difference. First operand  has 80 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 50 states have internal predecessors, (76), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)
[2023-12-23 21:52:15,417 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:52:15,542 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 21:52:15,542 INFO  L93              Difference]: Finished difference Result 159 states and 291 transitions.
[2023-12-23 21:52:15,545 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 21:52:15,546 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 172
[2023-12-23 21:52:15,547 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 21:52:15,555 INFO  L225             Difference]: With dead ends: 159
[2023-12-23 21:52:15,556 INFO  L226             Difference]: Without dead ends: 78
[2023-12-23 21:52:15,560 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 21:52:15,566 INFO  L413           NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2023-12-23 21:52:15,569 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time]
[2023-12-23 21:52:15,581 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2023-12-23 21:52:15,603 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78.
[2023-12-23 21:52:15,604 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2023-12-23 21:52:15,606 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 127 transitions.
[2023-12-23 21:52:15,607 INFO  L78                 Accepts]: Start accepts. Automaton has 78 states and 127 transitions. Word has length 172
[2023-12-23 21:52:15,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 21:52:15,608 INFO  L495      AbstractCegarLoop]: Abstraction has 78 states and 127 transitions.
[2023-12-23 21:52:15,608 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)
[2023-12-23 21:52:15,608 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 127 transitions.
[2023-12-23 21:52:15,613 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2023-12-23 21:52:15,614 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 21:52:15,614 INFO  L195           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 21:52:15,630 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-23 21:52:15,815 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:52:15,815 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 21:52:15,816 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 21:52:15,817 INFO  L85        PathProgramCache]: Analyzing trace with hash 2105978497, now seen corresponding path program 1 times
[2023-12-23 21:52:15,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 21:52:15,818 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543835855]
[2023-12-23 21:52:15,818 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:52:15,818 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:52:15,818 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 21:52:15,823 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 21:52:15,824 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-23 21:52:16,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:52:16,515 INFO  L262         TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 21:52:16,521 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 21:52:17,231 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 573 proven. 18 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked.
[2023-12-23 21:52:17,231 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 21:52:17,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 63 proven. 18 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked.
[2023-12-23 21:52:17,918 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 21:52:17,920 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543835855]
[2023-12-23 21:52:17,920 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543835855] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 21:52:17,920 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 21:52:17,920 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 21:52:17,921 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253396856]
[2023-12-23 21:52:17,921 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 21:52:17,924 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 21:52:17,924 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 21:52:17,927 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 21:52:17,928 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 21:52:17,928 INFO  L87              Difference]: Start difference. First operand 78 states and 127 transitions. Second operand  has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-23 21:52:23,530 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:52:27,560 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:52:31,568 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 []
[2023-12-23 21:52:31,709 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 21:52:31,709 INFO  L93              Difference]: Finished difference Result 163 states and 260 transitions.
[2023-12-23 21:52:31,710 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 21:52:31,710 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 172
[2023-12-23 21:52:31,711 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 21:52:31,714 INFO  L225             Difference]: With dead ends: 163
[2023-12-23 21:52:31,714 INFO  L226             Difference]: Without dead ends: 86
[2023-12-23 21:52:31,715 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 336 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 21:52:31,716 INFO  L413           NwaCegarLoop]: 89 mSDtfsCounter, 87 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time
[2023-12-23 21:52:31,717 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 209 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 161 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time]
[2023-12-23 21:52:31,717 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2023-12-23 21:52:31,742 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82.
[2023-12-23 21:52:31,743 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 51 states have internal predecessors, (73), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2023-12-23 21:52:31,744 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 129 transitions.
[2023-12-23 21:52:31,745 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 129 transitions. Word has length 172
[2023-12-23 21:52:31,745 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 21:52:31,745 INFO  L495      AbstractCegarLoop]: Abstraction has 82 states and 129 transitions.
[2023-12-23 21:52:31,746 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-23 21:52:31,746 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 129 transitions.
[2023-12-23 21:52:31,748 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2023-12-23 21:52:31,749 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 21:52:31,749 INFO  L195           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 21:52:31,772 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
[2023-12-23 21:52:31,949 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:52:31,949 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 21:52:31,950 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 21:52:31,950 INFO  L85        PathProgramCache]: Analyzing trace with hash -92263039, now seen corresponding path program 1 times
[2023-12-23 21:52:31,951 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 21:52:31,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94521254]
[2023-12-23 21:52:31,951 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:52:31,952 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:52:31,952 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 21:52:31,953 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 21:52:31,955 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-23 21:52:32,543 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:52:32,569 INFO  L262         TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 21:52:32,574 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 21:52:33,328 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 573 proven. 18 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked.
[2023-12-23 21:52:33,329 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 21:52:34,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 1512 backedges. 63 proven. 18 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked.
[2023-12-23 21:52:34,096 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 21:52:34,096 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94521254]
[2023-12-23 21:52:34,096 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [94521254] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 21:52:34,096 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 21:52:34,097 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2023-12-23 21:52:34,097 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158996018]
[2023-12-23 21:52:34,097 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 21:52:34,097 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-23 21:52:34,098 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 21:52:34,098 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-23 21:52:34,098 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-12-23 21:52:34,099 INFO  L87              Difference]: Start difference. First operand 82 states and 129 transitions. Second operand  has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-23 21:52:40,318 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:52:44,326 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:52:48,332 WARN  L539   Checker$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 []
[2023-12-23 21:52:52,337 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:52:56,342 WARN  L539   Checker$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 []
[2023-12-23 21:53:00,351 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 21:53:04,358 WARN  L539   Checker$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 []
[2023-12-23 21:53:04,961 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 21:53:04,961 INFO  L93              Difference]: Finished difference Result 251 states and 391 transitions.
[2023-12-23 21:53:04,962 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2023-12-23 21:53:04,962 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 172
[2023-12-23 21:53:04,963 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 21:53:04,965 INFO  L225             Difference]: With dead ends: 251
[2023-12-23 21:53:04,965 INFO  L226             Difference]: Without dead ends: 170
[2023-12-23 21:53:04,966 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 336 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2023-12-23 21:53:04,967 INFO  L413           NwaCegarLoop]: 86 mSDtfsCounter, 214 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 114 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time
[2023-12-23 21:53:04,968 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 283 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 211 Invalid, 7 Unknown, 0 Unchecked, 30.2s Time]
[2023-12-23 21:53:04,968 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 170 states.
[2023-12-23 21:53:05,005 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 159.
[2023-12-23 21:53:05,006 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 159 states, 98 states have (on average 1.3979591836734695) internal successors, (137), 98 states have internal predecessors, (137), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56)
[2023-12-23 21:53:05,008 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 249 transitions.
[2023-12-23 21:53:05,008 INFO  L78                 Accepts]: Start accepts. Automaton has 159 states and 249 transitions. Word has length 172
[2023-12-23 21:53:05,009 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 21:53:05,009 INFO  L495      AbstractCegarLoop]: Abstraction has 159 states and 249 transitions.
[2023-12-23 21:53:05,009 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-23 21:53:05,009 INFO  L276                IsEmpty]: Start isEmpty. Operand 159 states and 249 transitions.
[2023-12-23 21:53:05,012 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2023-12-23 21:53:05,013 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 21:53:05,013 INFO  L195           NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-23 21:53:05,031 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-23 21:53:05,216 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:53:05,216 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 21:53:05,217 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 21:53:05,217 INFO  L85        PathProgramCache]: Analyzing trace with hash 1682744323, now seen corresponding path program 1 times
[2023-12-23 21:53:05,217 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 21:53:05,218 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157449219]
[2023-12-23 21:53:05,218 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 21:53:05,218 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-23 21:53:05,218 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 21:53:05,219 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 21:53:05,231 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-23 21:53:05,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 21:53:05,936 INFO  L262         TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-23 21:53:05,944 INFO  L285         TraceCheckSpWp]: Computing forward predicates...