/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-ci_file-89.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 07:57:36,906 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 07:57:36,970 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 07:57:36,974 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 07:57:36,975 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 07:57:36,996 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 07:57:36,997 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 07:57:36,997 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 07:57:36,998 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 07:57:37,000 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 07:57:37,001 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 07:57:37,001 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 07:57:37,001 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 07:57:37,002 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 07:57:37,002 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 07:57:37,002 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 07:57:37,003 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 07:57:37,003 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 07:57:37,003 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 07:57:37,003 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 07:57:37,003 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 07:57:37,003 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 07:57:37,004 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 07:57:37,004 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 07:57:37,004 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 07:57:37,004 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 07:57:37,004 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 07:57:37,004 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 07:57:37,004 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 07:57:37,005 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 07:57:37,005 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 07:57:37,005 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 07:57:37,006 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 07:57:37,006 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 07:57:37,006 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 07:57:37,006 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 07:57:37,006 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 07:57:37,006 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 07:57:37,006 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 07:57:37,006 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 07:57:37,007 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 07:57:37,007 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 07:57:37,007 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 07:57:37,007 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 07:57:37,007 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 07:57:37,007 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 07:57:37,007 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 07:57:37,194 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 07:57:37,211 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 07:57:37,213 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 07:57:37,214 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 07:57:37,214 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 07:57:37,216 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-89.i
[2023-12-23 07:57:38,190 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 07:57:38,358 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 07:57:38,358 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-89.i
[2023-12-23 07:57:38,371 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85534889d/29567ce504f747eaa9e8ef2c05160457/FLAG57db15adc
[2023-12-23 07:57:38,382 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85534889d/29567ce504f747eaa9e8ef2c05160457
[2023-12-23 07:57:38,384 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 07:57:38,385 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 07:57:38,386 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 07:57:38,387 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 07:57:38,390 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 07:57:38,390 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,391 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b9e136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38, skipping insertion in model container
[2023-12-23 07:57:38,391 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,418 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 07:57:38,529 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-ci_file-89.i[919,932]
[2023-12-23 07:57:38,580 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 07:57:38,602 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 07:57:38,609 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-ci_file-89.i[919,932]
[2023-12-23 07:57:38,647 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 07:57:38,663 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 07:57:38,663 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38 WrapperNode
[2023-12-23 07:57:38,664 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 07:57:38,667 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 07:57:38,667 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 07:57:38,667 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 07:57:38,671 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,682 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,702 INFO  L138                Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 170
[2023-12-23 07:57:38,702 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 07:57:38,703 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 07:57:38,703 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 07:57:38,703 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 07:57:38,709 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,710 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,712 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,724 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 07:57:38,724 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,724 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,732 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,734 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,736 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,737 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,739 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 07:57:38,740 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 07:57:38,740 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 07:57:38,740 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 07:57:38,740 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (1/1) ...
[2023-12-23 07:57:38,744 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 07:57:38,751 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 07:57:38,764 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 07:57:38,765 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 07:57:38,782 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 07:57:38,782 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 07:57:38,782 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 07:57:38,782 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 07:57:38,782 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 07:57:38,782 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 07:57:38,843 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 07:57:38,844 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 07:57:49,653 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 07:57:49,752 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 07:57:49,753 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 07:57:49,753 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:57:49 BoogieIcfgContainer
[2023-12-23 07:57:49,753 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 07:57:49,754 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 07:57:49,754 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 07:57:49,765 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 07:57:49,765 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:57:38" (1/3) ...
[2023-12-23 07:57:49,766 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c6ab63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:57:49, skipping insertion in model container
[2023-12-23 07:57:49,766 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:57:38" (2/3) ...
[2023-12-23 07:57:49,766 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c6ab63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:57:49, skipping insertion in model container
[2023-12-23 07:57:49,766 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:57:49" (3/3) ...
[2023-12-23 07:57:49,767 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-89.i
[2023-12-23 07:57:49,779 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 07:57:49,780 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 07:57:49,811 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 07:57:49,816 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;@29a467ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 07:57:49,816 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 07:57:49,820 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 70 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-23 07:57:49,831 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2023-12-23 07:57:49,831 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:57:49,832 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:57:49,832 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:57:49,836 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:57:49,836 INFO  L85        PathProgramCache]: Analyzing trace with hash -353693350, now seen corresponding path program 1 times
[2023-12-23 07:57:49,844 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:57:49,845 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918329142]
[2023-12-23 07:57:49,845 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:57:49,845 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 07:57:49,845 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:57:49,847 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 07:57:49,849 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 07:57:50,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:57:50,086 INFO  L262         TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-23 07:57:50,093 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:57:50,611 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-23 07:57:50,611 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:57:50,611 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:57:50,612 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918329142]
[2023-12-23 07:57:50,612 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918329142] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:57:50,612 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:57:50,612 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-23 07:57:50,613 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810727525]
[2023-12-23 07:57:50,614 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:57:50,617 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-23 07:57:50,617 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:57:50,633 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-23 07:57:50,634 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 07:57:50,636 INFO  L87              Difference]: Start difference. First operand  has 70 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand  has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 07:57:51,423 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:57:51,423 INFO  L93              Difference]: Finished difference Result 199 states and 377 transitions.
[2023-12-23 07:57:51,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-23 07:57:51,425 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130
[2023-12-23 07:57:51,426 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:57:51,431 INFO  L225             Difference]: With dead ends: 199
[2023-12-23 07:57:51,432 INFO  L226             Difference]: Without dead ends: 130
[2023-12-23 07:57:51,434 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-23 07:57:51,436 INFO  L413           NwaCegarLoop]: 102 mSDtfsCounter, 91 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-23 07:57:51,437 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 196 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-23 07:57:51,448 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 130 states.
[2023-12-23 07:57:51,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126.
[2023-12-23 07:57:51,472 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 126 states, 83 states have (on average 1.4819277108433735) internal successors, (123), 83 states have internal predecessors, (123), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-23 07:57:51,474 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 203 transitions.
[2023-12-23 07:57:51,474 INFO  L78                 Accepts]: Start accepts. Automaton has 126 states and 203 transitions. Word has length 130
[2023-12-23 07:57:51,475 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:57:51,475 INFO  L495      AbstractCegarLoop]: Abstraction has 126 states and 203 transitions.
[2023-12-23 07:57:51,475 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 07:57:51,476 INFO  L276                IsEmpty]: Start isEmpty. Operand 126 states and 203 transitions.
[2023-12-23 07:57:51,479 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2023-12-23 07:57:51,479 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:57:51,479 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:57:51,492 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-23 07:57:51,687 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 07:57:51,688 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:57:51,688 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:57:51,688 INFO  L85        PathProgramCache]: Analyzing trace with hash 349218270, now seen corresponding path program 1 times
[2023-12-23 07:57:51,689 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:57:51,689 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941748135]
[2023-12-23 07:57:51,689 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:57:51,689 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 07:57:51,690 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:57:51,691 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 07:57:51,692 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 07:57:51,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:57:51,919 INFO  L262         TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-23 07:57:51,922 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:57:55,841 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 399 proven. 27 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked.
[2023-12-23 07:57:55,841 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 07:57:58,922 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 30 proven. 27 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked.
[2023-12-23 07:57:58,922 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:57:58,922 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941748135]
[2023-12-23 07:57:58,923 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [941748135] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 07:57:58,923 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 07:57:58,923 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-23 07:57:58,923 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365950550]
[2023-12-23 07:57:58,923 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 07:57:58,924 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-23 07:57:58,924 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:57:58,925 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-23 07:57:58,925 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-23 07:57:58,925 INFO  L87              Difference]: Start difference. First operand 126 states and 203 transitions. Second operand  has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2023-12-23 07:58:03,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:58:03,495 INFO  L93              Difference]: Finished difference Result 267 states and 419 transitions.
[2023-12-23 07:58:03,507 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-23 07:58:03,508 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 130
[2023-12-23 07:58:03,509 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:58:03,510 INFO  L225             Difference]: With dead ends: 267
[2023-12-23 07:58:03,510 INFO  L226             Difference]: Without dead ends: 142
[2023-12-23 07:58:03,511 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-23 07:58:03,512 INFO  L413           NwaCegarLoop]: 79 mSDtfsCounter, 65 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-12-23 07:58:03,512 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 195 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-12-23 07:58:03,513 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 142 states.
[2023-12-23 07:58:03,523 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134.
[2023-12-23 07:58:03,523 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 134 states, 89 states have (on average 1.4157303370786516) internal successors, (126), 89 states have internal predecessors, (126), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-23 07:58:03,524 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 206 transitions.
[2023-12-23 07:58:03,525 INFO  L78                 Accepts]: Start accepts. Automaton has 134 states and 206 transitions. Word has length 130
[2023-12-23 07:58:03,525 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:58:03,525 INFO  L495      AbstractCegarLoop]: Abstraction has 134 states and 206 transitions.
[2023-12-23 07:58:03,525 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2023-12-23 07:58:03,525 INFO  L276                IsEmpty]: Start isEmpty. Operand 134 states and 206 transitions.
[2023-12-23 07:58:03,528 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2023-12-23 07:58:03,528 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:58:03,528 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:58:03,536 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 07:58:03,736 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 07:58:03,736 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:58:03,737 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:58:03,737 INFO  L85        PathProgramCache]: Analyzing trace with hash -460128356, now seen corresponding path program 1 times
[2023-12-23 07:58:03,737 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:58:03,738 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971754616]
[2023-12-23 07:58:03,738 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:58:03,738 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 07:58:03,738 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:58:03,739 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 07:58:03,761 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 07:58:03,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:58:03,927 INFO  L262         TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-23 07:58:03,930 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 07:58:17,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-23 07:58:17,883 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 07:58:17,883 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 07:58:17,883 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971754616]
[2023-12-23 07:58:17,883 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [971754616] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 07:58:17,883 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 07:58:17,883 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-23 07:58:17,884 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105628690]
[2023-12-23 07:58:17,884 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 07:58:17,884 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-23 07:58:17,884 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 07:58:17,885 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-23 07:58:17,885 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-23 07:58:17,885 INFO  L87              Difference]: Start difference. First operand 134 states and 206 transitions. Second operand  has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 07:58:28,245 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:58:29,613 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:58:36,881 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:58:40,892 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:58:44,921 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:58:46,097 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-23 07:58:46,321 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 07:58:46,327 INFO  L93              Difference]: Finished difference Result 454 states and 695 transitions.
[2023-12-23 07:58:46,327 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-23 07:58:46,327 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130
[2023-12-23 07:58:46,329 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 07:58:46,336 INFO  L225             Difference]: With dead ends: 454
[2023-12-23 07:58:46,336 INFO  L226             Difference]: Without dead ends: 321
[2023-12-23 07:58:46,337 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2023-12-23 07:58:46,341 INFO  L413           NwaCegarLoop]: 105 mSDtfsCounter, 205 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 65 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time
[2023-12-23 07:58:46,341 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 228 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 121 Invalid, 4 Unknown, 0 Unchecked, 27.9s Time]
[2023-12-23 07:58:46,344 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 321 states.
[2023-12-23 07:58:46,369 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 315.
[2023-12-23 07:58:46,370 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 315 states, 210 states have (on average 1.3666666666666667) internal successors, (287), 212 states have internal predecessors, (287), 94 states have call successors, (94), 10 states have call predecessors, (94), 10 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94)
[2023-12-23 07:58:46,385 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 475 transitions.
[2023-12-23 07:58:46,385 INFO  L78                 Accepts]: Start accepts. Automaton has 315 states and 475 transitions. Word has length 130
[2023-12-23 07:58:46,386 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 07:58:46,386 INFO  L495      AbstractCegarLoop]: Abstraction has 315 states and 475 transitions.
[2023-12-23 07:58:46,386 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-23 07:58:46,386 INFO  L276                IsEmpty]: Start isEmpty. Operand 315 states and 475 transitions.
[2023-12-23 07:58:46,388 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2023-12-23 07:58:46,388 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 07:58:46,388 INFO  L195           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:58:46,398 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 07:58:46,595 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 07:58:46,596 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 07:58:46,596 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 07:58:46,597 INFO  L85        PathProgramCache]: Analyzing trace with hash -67101346, now seen corresponding path program 1 times
[2023-12-23 07:58:46,597 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 07:58:46,597 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22753335]
[2023-12-23 07:58:46,597 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 07:58:46,597 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 07:58:46,597 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 07:58:46,598 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 07:58:46,600 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 07:58:46,790 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 07:58:46,800 INFO  L262         TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-23 07:58:46,804 INFO  L285         TraceCheckSpWp]: Computing forward predicates...