/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_fillercode_fillercodestructure_filler-pe-co_file-67.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 09:57:53,467 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 09:57:53,541 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 09:57:53,545 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 09:57:53,545 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 09:57:53,568 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 09:57:53,568 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 09:57:53,568 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 09:57:53,569 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 09:57:53,572 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 09:57:53,572 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 09:57:53,572 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 09:57:53,573 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 09:57:53,574 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 09:57:53,574 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 09:57:53,574 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 09:57:53,575 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 09:57:53,575 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 09:57:53,575 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 09:57:53,575 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 09:57:53,575 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 09:57:53,576 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 09:57:53,576 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 09:57:53,577 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 09:57:53,577 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 09:57:53,577 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 09:57:53,577 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 09:57:53,577 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 09:57:53,577 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 09:57:53,577 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 09:57:53,578 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 09:57:53,578 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 09:57:53,578 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 09:57:53,579 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 09:57:53,579 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 09:57:53,579 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 09:57:53,579 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 09:57:53,579 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 09:57:53,579 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 09:57:53,579 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 09:57:53,579 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 09:57:53,580 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 09:57:53,580 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 09:57:53,580 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 09:57:53,580 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 09:57:53,580 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 09:57:53,580 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 09:57:53,742 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 09:57:53,755 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 09:57:53,757 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 09:57:53,758 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 09:57:53,758 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 09:57:53,759 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-67.i
[2023-12-23 09:57:54,667 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 09:57:54,922 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 09:57:54,923 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-67.i
[2023-12-23 09:57:54,930 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e9a198e/6264e1d32d6942b480e720a45cb5464d/FLAG305332c7a
[2023-12-23 09:57:54,941 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e9a198e/6264e1d32d6942b480e720a45cb5464d
[2023-12-23 09:57:54,943 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 09:57:54,944 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 09:57:54,950 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 09:57:54,950 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 09:57:54,954 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 09:57:54,954 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:57:54" (1/1) ...
[2023-12-23 09:57:54,955 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b0a59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:54, skipping insertion in model container
[2023-12-23 09:57:54,955 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:57:54" (1/1) ...
[2023-12-23 09:57:54,978 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 09:57:55,114 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_fillercode_fillercodestructure_filler-pe-co_file-67.i[919,932]
[2023-12-23 09:57:55,169 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 09:57:55,181 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 09:57:55,200 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_fillercode_fillercodestructure_filler-pe-co_file-67.i[919,932]
[2023-12-23 09:57:55,238 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 09:57:55,252 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 09:57:55,252 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55 WrapperNode
[2023-12-23 09:57:55,253 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 09:57:55,253 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 09:57:55,253 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 09:57:55,254 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 09:57:55,261 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,280 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,309 INFO  L138                Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 224
[2023-12-23 09:57:55,310 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 09:57:55,310 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 09:57:55,310 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 09:57:55,311 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 09:57:55,330 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,330 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,333 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,344 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 09:57:55,344 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,344 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,355 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,358 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,376 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,378 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,381 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 09:57:55,382 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 09:57:55,382 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 09:57:55,382 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 09:57:55,383 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (1/1) ...
[2023-12-23 09:57:55,402 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 09:57:55,412 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 09:57:55,440 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 09:57:55,460 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 09:57:55,465 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 09:57:55,465 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 09:57:55,465 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 09:57:55,466 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 09:57:55,466 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 09:57:55,467 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 09:57:55,557 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 09:57:55,559 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 09:57:57,489 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 09:57:57,530 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 09:57:57,530 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 09:57:57,530 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:57:57 BoogieIcfgContainer
[2023-12-23 09:57:57,530 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 09:57:57,532 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 09:57:57,532 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 09:57:57,534 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 09:57:57,534 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:57:54" (1/3) ...
[2023-12-23 09:57:57,535 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3ac3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:57:57, skipping insertion in model container
[2023-12-23 09:57:57,535 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:57:55" (2/3) ...
[2023-12-23 09:57:57,535 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3ac3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:57:57, skipping insertion in model container
[2023-12-23 09:57:57,535 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:57:57" (3/3) ...
[2023-12-23 09:57:57,536 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-67.i
[2023-12-23 09:57:57,550 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 09:57:57,551 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 09:57:57,593 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 09:57:57,598 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;@1c2b2823, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 09:57:57,598 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 09:57:57,606 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 92 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 56 states have internal predecessors, (81), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-23 09:57:57,618 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 208
[2023-12-23 09:57:57,619 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:57:57,619 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:57:57,620 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:57:57,623 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:57:57,624 INFO  L85        PathProgramCache]: Analyzing trace with hash 1728525124, now seen corresponding path program 1 times
[2023-12-23 09:57:57,633 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:57:57,634 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967125204]
[2023-12-23 09:57:57,634 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:57:57,634 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 09:57:57,634 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:57:57,638 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 09:57:57,639 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 09:57:58,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:57:58,083 INFO  L262         TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-23 09:57:58,092 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 09:57:58,604 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-23 09:57:58,604 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 09:57:58,604 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 09:57:58,605 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967125204]
[2023-12-23 09:57:58,605 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [967125204] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 09:57:58,605 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 09:57:58,605 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 09:57:58,606 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475553533]
[2023-12-23 09:57:58,607 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 09:57:58,610 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-23 09:57:58,610 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 09:57:58,627 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-23 09:57:58,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-23 09:57:58,630 INFO  L87              Difference]: Start difference. First operand  has 92 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 56 states have internal predecessors, (81), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand  has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 09:58:00,162 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 09:58:00,163 INFO  L93              Difference]: Finished difference Result 269 states and 510 transitions.
[2023-12-23 09:58:00,188 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 09:58:00,189 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 207
[2023-12-23 09:58:00,190 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 09:58:00,197 INFO  L225             Difference]: With dead ends: 269
[2023-12-23 09:58:00,197 INFO  L226             Difference]: Without dead ends: 178
[2023-12-23 09:58:00,200 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-23 09:58:00,202 INFO  L413           NwaCegarLoop]: 135 mSDtfsCounter, 81 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2023-12-23 09:58:00,203 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 399 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2023-12-23 09:58:00,215 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 178 states.
[2023-12-23 09:58:00,249 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 155.
[2023-12-23 09:58:00,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 155 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 84 states have internal predecessors, (107), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68)
[2023-12-23 09:58:00,252 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 243 transitions.
[2023-12-23 09:58:00,253 INFO  L78                 Accepts]: Start accepts. Automaton has 155 states and 243 transitions. Word has length 207
[2023-12-23 09:58:00,254 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 09:58:00,254 INFO  L495      AbstractCegarLoop]: Abstraction has 155 states and 243 transitions.
[2023-12-23 09:58:00,254 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 09:58:00,255 INFO  L276                IsEmpty]: Start isEmpty. Operand 155 states and 243 transitions.
[2023-12-23 09:58:00,257 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2023-12-23 09:58:00,258 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:58:00,258 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:58:00,271 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 09:58:00,471 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 09:58:00,471 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:58:00,472 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:58:00,472 INFO  L85        PathProgramCache]: Analyzing trace with hash -94782890, now seen corresponding path program 1 times
[2023-12-23 09:58:00,473 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:58:00,473 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508712976]
[2023-12-23 09:58:00,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:58:00,473 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 09:58:00,473 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:58:00,475 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 09:58:00,476 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 09:58:00,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:58:00,845 INFO  L262         TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 09:58:00,850 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 09:58:01,279 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 285 proven. 93 refuted. 0 times theorem prover too weak. 1866 trivial. 0 not checked.
[2023-12-23 09:58:01,279 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 09:58:01,613 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 6 proven. 93 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked.
[2023-12-23 09:58:01,614 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 09:58:01,614 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508712976]
[2023-12-23 09:58:01,614 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508712976] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 09:58:01,614 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 09:58:01,614 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 09:58:01,614 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299133222]
[2023-12-23 09:58:01,614 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 09:58:01,616 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 09:58:01,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 09:58:01,617 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 09:58:01,617 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 09:58:01,617 INFO  L87              Difference]: Start difference. First operand 155 states and 243 transitions. Second operand  has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2023-12-23 09:58:02,773 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 09:58:02,773 INFO  L93              Difference]: Finished difference Result 253 states and 389 transitions.
[2023-12-23 09:58:02,796 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-23 09:58:02,797 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 209
[2023-12-23 09:58:02,798 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 09:58:02,801 INFO  L225             Difference]: With dead ends: 253
[2023-12-23 09:58:02,801 INFO  L226             Difference]: Without dead ends: 165
[2023-12-23 09:58:02,802 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 410 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 09:58:02,803 INFO  L413           NwaCegarLoop]: 96 mSDtfsCounter, 89 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-12-23 09:58:02,803 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 217 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-12-23 09:58:02,805 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 165 states.
[2023-12-23 09:58:02,831 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 161.
[2023-12-23 09:58:02,831 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 161 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 88 states have internal predecessors, (107), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68)
[2023-12-23 09:58:02,833 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 243 transitions.
[2023-12-23 09:58:02,833 INFO  L78                 Accepts]: Start accepts. Automaton has 161 states and 243 transitions. Word has length 209
[2023-12-23 09:58:02,834 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 09:58:02,834 INFO  L495      AbstractCegarLoop]: Abstraction has 161 states and 243 transitions.
[2023-12-23 09:58:02,834 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66)
[2023-12-23 09:58:02,834 INFO  L276                IsEmpty]: Start isEmpty. Operand 161 states and 243 transitions.
[2023-12-23 09:58:02,837 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2023-12-23 09:58:02,837 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:58:02,837 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:58:02,867 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 (3)] Ended with exit code 0
[2023-12-23 09:58:03,067 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 09:58:03,067 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:58:03,068 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:58:03,068 INFO  L85        PathProgramCache]: Analyzing trace with hash 54199630, now seen corresponding path program 1 times
[2023-12-23 09:58:03,068 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:58:03,069 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287417239]
[2023-12-23 09:58:03,069 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:58:03,069 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 09:58:03,069 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:58:03,073 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 09:58:03,089 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 09:58:03,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:58:03,444 INFO  L262         TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 09:58:03,448 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 09:58:03,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-23 09:58:03,778 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 09:58:03,778 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 09:58:03,778 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287417239]
[2023-12-23 09:58:03,778 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287417239] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 09:58:03,778 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 09:58:03,778 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-23 09:58:03,778 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302338557]
[2023-12-23 09:58:03,779 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 09:58:03,779 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-23 09:58:03,779 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 09:58:03,780 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-23 09:58:03,780 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-23 09:58:03,780 INFO  L87              Difference]: Start difference. First operand 161 states and 243 transitions. Second operand  has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 09:58:05,554 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 09:58:05,554 INFO  L93              Difference]: Finished difference Result 342 states and 520 transitions.
[2023-12-23 09:58:05,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-23 09:58:05,556 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 209
[2023-12-23 09:58:05,556 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 09:58:05,558 INFO  L225             Difference]: With dead ends: 342
[2023-12-23 09:58:05,558 INFO  L226             Difference]: Without dead ends: 252
[2023-12-23 09:58:05,558 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 09:58:05,559 INFO  L413           NwaCegarLoop]: 128 mSDtfsCounter, 224 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-12-23 09:58:05,559 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 498 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-12-23 09:58:05,560 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 252 states.
[2023-12-23 09:58:05,579 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 174.
[2023-12-23 09:58:05,580 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 174 states, 101 states have (on average 1.2574257425742574) internal successors, (127), 101 states have internal predecessors, (127), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68)
[2023-12-23 09:58:05,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 263 transitions.
[2023-12-23 09:58:05,581 INFO  L78                 Accepts]: Start accepts. Automaton has 174 states and 263 transitions. Word has length 209
[2023-12-23 09:58:05,582 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 09:58:05,582 INFO  L495      AbstractCegarLoop]: Abstraction has 174 states and 263 transitions.
[2023-12-23 09:58:05,582 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-23 09:58:05,582 INFO  L276                IsEmpty]: Start isEmpty. Operand 174 states and 263 transitions.
[2023-12-23 09:58:05,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 212
[2023-12-23 09:58:05,584 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 09:58:05,584 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:58:05,599 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 09:58:05,793 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 09:58:05,794 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 09:58:05,794 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 09:58:05,794 INFO  L85        PathProgramCache]: Analyzing trace with hash 870233188, now seen corresponding path program 1 times
[2023-12-23 09:58:05,795 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 09:58:05,795 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545138094]
[2023-12-23 09:58:05,795 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 09:58:05,795 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 09:58:05,796 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 09:58:05,798 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 09:58:05,802 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 09:58:06,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 09:58:06,281 INFO  L262         TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-23 09:58:06,287 INFO  L285         TraceCheckSpWp]: Computing forward predicates...