/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-pr-ci_file-56.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-23 11:02:18,809 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-23 11:02:18,854 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 11:02:18,858 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-23 11:02:18,858 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-23 11:02:18,888 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-23 11:02:18,889 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-23 11:02:18,889 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-23 11:02:18,890 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-23 11:02:18,892 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-23 11:02:18,893 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-23 11:02:18,893 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-23 11:02:18,893 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-23 11:02:18,894 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-23 11:02:18,895 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-23 11:02:18,895 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-23 11:02:18,895 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-23 11:02:18,895 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-23 11:02:18,896 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-23 11:02:18,896 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-23 11:02:18,896 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-23 11:02:18,896 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-23 11:02:18,897 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-23 11:02:18,897 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2023-12-23 11:02:18,897 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2023-12-23 11:02:18,897 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-23 11:02:18,897 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-23 11:02:18,897 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-23 11:02:18,897 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-23 11:02:18,898 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-23 11:02:18,898 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-23 11:02:18,898 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-23 11:02:18,899 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-23 11:02:18,899 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-23 11:02:18,899 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 11:02:18,899 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-23 11:02:18,899 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-23 11:02:18,899 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-23 11:02:18,899 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2023-12-23 11:02:18,899 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-23 11:02:18,900 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-23 11:02:18,900 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-23 11:02:18,900 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-23 11:02:18,900 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-23 11:02:18,900 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-23 11:02:18,901 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2023-12-23 11:02:18,901 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-23 11:02:19,092 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-23 11:02:19,108 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-23 11:02:19,110 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-23 11:02:19,111 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-23 11:02:19,115 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-23 11:02:19,117 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-56.i
[2023-12-23 11:02:20,159 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-23 11:02:20,433 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-23 11:02:20,434 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-56.i
[2023-12-23 11:02:20,442 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8422b57ff/f1e84fb17f7f4bda9a9b3bf602e6c79d/FLAG087ec65e9
[2023-12-23 11:02:20,457 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8422b57ff/f1e84fb17f7f4bda9a9b3bf602e6c79d
[2023-12-23 11:02:20,459 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-23 11:02:20,460 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-23 11:02:20,461 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-23 11:02:20,462 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-23 11:02:20,465 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-23 11:02:20,465 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,466 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7541e1bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20, skipping insertion in model container
[2023-12-23 11:02:20,466 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,496 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-23 11:02:20,618 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-pr-ci_file-56.i[919,932]
[2023-12-23 11:02:20,663 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 11:02:20,673 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-23 11:02:20,681 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-pr-ci_file-56.i[919,932]
[2023-12-23 11:02:20,707 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-23 11:02:20,719 INFO  L206         MainTranslator]: Completed translation
[2023-12-23 11:02:20,720 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20 WrapperNode
[2023-12-23 11:02:20,720 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-23 11:02:20,720 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-23 11:02:20,721 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-23 11:02:20,721 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-23 11:02:20,725 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,734 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,766 INFO  L138                Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 191
[2023-12-23 11:02:20,767 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-23 11:02:20,767 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-23 11:02:20,767 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-23 11:02:20,767 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-23 11:02:20,775 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,775 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,778 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,788 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 11:02:20,788 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,788 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,795 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,798 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,799 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,801 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,803 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-23 11:02:20,804 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-23 11:02:20,804 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-23 11:02:20,804 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-23 11:02:20,804 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (1/1) ...
[2023-12-23 11:02:20,808 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-23 11:02:20,818 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-23 11:02:20,862 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 11:02:20,889 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 11:02:20,906 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-23 11:02:20,906 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-23 11:02:20,906 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-23 11:02:20,908 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-23 11:02:20,908 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-23 11:02:20,908 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-23 11:02:20,993 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-23 11:02:20,996 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-23 11:02:21,675 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-23 11:02:21,713 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-23 11:02:21,713 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-23 11:02:21,714 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:02:21 BoogieIcfgContainer
[2023-12-23 11:02:21,714 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-23 11:02:21,715 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-23 11:02:21,715 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-23 11:02:21,722 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-23 11:02:21,723 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:02:20" (1/3) ...
[2023-12-23 11:02:21,723 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5115dfae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:02:21, skipping insertion in model container
[2023-12-23 11:02:21,723 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:02:20" (2/3) ...
[2023-12-23 11:02:21,724 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5115dfae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:02:21, skipping insertion in model container
[2023-12-23 11:02:21,724 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:02:21" (3/3) ...
[2023-12-23 11:02:21,725 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-56.i
[2023-12-23 11:02:21,738 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-23 11:02:21,738 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-23 11:02:21,769 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-23 11:02:21,774 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;@2fb87d7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-23 11:02:21,774 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-23 11:02:21,777 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 82 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 50 states have internal predecessors, (70), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30)
[2023-12-23 11:02:21,786 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 190
[2023-12-23 11:02:21,787 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:02:21,787 INFO  L195           NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:21,788 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:02:21,792 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:02:21,793 INFO  L85        PathProgramCache]: Analyzing trace with hash -1310700950, now seen corresponding path program 1 times
[2023-12-23 11:02:21,804 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:02:21,805 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866287070]
[2023-12-23 11:02:21,805 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:02:21,805 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 11:02:21,805 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:02:21,806 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 11:02:21,809 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 11:02:22,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:02:22,055 INFO  L262         TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-23 11:02:22,063 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:02:22,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 874 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked.
[2023-12-23 11:02:22,096 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-23 11:02:22,096 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:02:22,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866287070]
[2023-12-23 11:02:22,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [866287070] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-23 11:02:22,097 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-23 11:02:22,097 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-23 11:02:22,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820113970]
[2023-12-23 11:02:22,099 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-23 11:02:22,102 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-23 11:02:22,102 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:02:22,118 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-23 11:02:22,119 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 11:02:22,121 INFO  L87              Difference]: Start difference. First operand  has 82 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 50 states have internal predecessors, (70), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2023-12-23 11:02:22,198 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:02:22,198 INFO  L93              Difference]: Finished difference Result 160 states and 286 transitions.
[2023-12-23 11:02:22,204 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-23 11:02:22,206 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 189
[2023-12-23 11:02:22,206 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:02:22,211 INFO  L225             Difference]: With dead ends: 160
[2023-12-23 11:02:22,212 INFO  L226             Difference]: Without dead ends: 79
[2023-12-23 11:02:22,215 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-23 11:02:22,217 INFO  L413           NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-23 11:02:22,217 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-23 11:02:22,228 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2023-12-23 11:02:22,249 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79.
[2023-12-23 11:02:22,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 79 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30)
[2023-12-23 11:02:22,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 122 transitions.
[2023-12-23 11:02:22,252 INFO  L78                 Accepts]: Start accepts. Automaton has 79 states and 122 transitions. Word has length 189
[2023-12-23 11:02:22,252 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:02:22,252 INFO  L495      AbstractCegarLoop]: Abstraction has 79 states and 122 transitions.
[2023-12-23 11:02:22,252 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2023-12-23 11:02:22,253 INFO  L276                IsEmpty]: Start isEmpty. Operand 79 states and 122 transitions.
[2023-12-23 11:02:22,255 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 190
[2023-12-23 11:02:22,255 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:02:22,256 INFO  L195           NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:22,266 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 11:02:22,467 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 11:02:22,467 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:02:22,468 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:02:22,468 INFO  L85        PathProgramCache]: Analyzing trace with hash 1113130546, now seen corresponding path program 1 times
[2023-12-23 11:02:22,469 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:02:22,470 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946472645]
[2023-12-23 11:02:22,470 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:02:22,470 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 11:02:22,470 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:02:22,471 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 11:02:22,502 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 11:02:22,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:02:22,734 INFO  L262         TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-23 11:02:22,746 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:02:23,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 558 proven. 141 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked.
[2023-12-23 11:02:23,397 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:02:23,728 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked.
[2023-12-23 11:02:23,728 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:02:23,728 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946472645]
[2023-12-23 11:02:23,728 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946472645] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-23 11:02:23,729 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 11:02:23,729 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13
[2023-12-23 11:02:23,729 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574636830]
[2023-12-23 11:02:23,729 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 11:02:23,730 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-23 11:02:23,730 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:02:23,731 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-23 11:02:23,731 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2023-12-23 11:02:23,732 INFO  L87              Difference]: Start difference. First operand 79 states and 122 transitions. Second operand  has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (55), 3 states have call predecessors, (55), 7 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56)
[2023-12-23 11:02:24,305 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:02:24,306 INFO  L93              Difference]: Finished difference Result 165 states and 247 transitions.
[2023-12-23 11:02:24,311 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-12-23 11:02:24,311 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (55), 3 states have call predecessors, (55), 7 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 189
[2023-12-23 11:02:24,312 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:02:24,313 INFO  L225             Difference]: With dead ends: 165
[2023-12-23 11:02:24,313 INFO  L226             Difference]: Without dead ends: 87
[2023-12-23 11:02:24,314 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 366 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=368, Unknown=0, NotChecked=0, Total=552
[2023-12-23 11:02:24,315 INFO  L413           NwaCegarLoop]: 76 mSDtfsCounter, 174 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-23 11:02:24,316 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 211 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-23 11:02:24,316 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2023-12-23 11:02:24,326 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85.
[2023-12-23 11:02:24,327 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 85 states, 51 states have (on average 1.196078431372549) internal successors, (61), 51 states have internal predecessors, (61), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30)
[2023-12-23 11:02:24,328 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 121 transitions.
[2023-12-23 11:02:24,328 INFO  L78                 Accepts]: Start accepts. Automaton has 85 states and 121 transitions. Word has length 189
[2023-12-23 11:02:24,328 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:02:24,328 INFO  L495      AbstractCegarLoop]: Abstraction has 85 states and 121 transitions.
[2023-12-23 11:02:24,329 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (55), 3 states have call predecessors, (55), 7 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56)
[2023-12-23 11:02:24,329 INFO  L276                IsEmpty]: Start isEmpty. Operand 85 states and 121 transitions.
[2023-12-23 11:02:24,331 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 190
[2023-12-23 11:02:24,331 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:02:24,331 INFO  L195           NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:24,342 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 11:02:24,542 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 11:02:24,543 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:02:24,543 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:02:24,543 INFO  L85        PathProgramCache]: Analyzing trace with hash 226293878, now seen corresponding path program 1 times
[2023-12-23 11:02:24,544 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:02:24,544 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057352778]
[2023-12-23 11:02:24,544 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:02:24,544 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 11:02:24,544 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:02:24,545 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 11:02:24,550 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 11:02:24,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:02:24,806 INFO  L262         TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-23 11:02:24,810 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:02:26,861 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 1046 proven. 198 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2023-12-23 11:02:26,862 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:02:27,515 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-23 11:02:27,515 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057352778]
[2023-12-23 11:02:27,515 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057352778] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 11:02:27,515 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1203204009]
[2023-12-23 11:02:27,516 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:02:27,516 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-23 11:02:27,516 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-23 11:02:27,579 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-23 11:02:27,608 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2023-12-23 11:02:28,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:02:28,261 INFO  L262         TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-12-23 11:02:28,265 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-23 11:02:29,838 INFO  L134       CoverageAnalysis]: Checked inductivity of 1740 backedges. 1088 proven. 147 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked.
[2023-12-23 11:02:29,839 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-23 11:02:30,444 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1203204009] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-23 11:02:30,444 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-23 11:02:30,445 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 20
[2023-12-23 11:02:30,445 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961343316]
[2023-12-23 11:02:30,445 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-23 11:02:30,446 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2023-12-23 11:02:30,446 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-23 11:02:30,448 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2023-12-23 11:02:30,448 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552
[2023-12-23 11:02:30,449 INFO  L87              Difference]: Start difference. First operand 85 states and 121 transitions. Second operand  has 21 states, 21 states have (on average 5.0) internal successors, (105), 20 states have internal predecessors, (105), 7 states have call successors, (50), 7 states have call predecessors, (50), 12 states have return successors, (51), 7 states have call predecessors, (51), 7 states have call successors, (51)
[2023-12-23 11:02:32,263 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-23 11:02:32,263 INFO  L93              Difference]: Finished difference Result 232 states and 310 transitions.
[2023-12-23 11:02:32,265 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2023-12-23 11:02:32,266 INFO  L78                 Accepts]: Start accepts. Automaton has  has 21 states, 21 states have (on average 5.0) internal successors, (105), 20 states have internal predecessors, (105), 7 states have call successors, (50), 7 states have call predecessors, (50), 12 states have return successors, (51), 7 states have call predecessors, (51), 7 states have call successors, (51) Word has length 189
[2023-12-23 11:02:32,266 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-23 11:02:32,267 INFO  L225             Difference]: With dead ends: 232
[2023-12-23 11:02:32,267 INFO  L226             Difference]: Without dead ends: 148
[2023-12-23 11:02:32,269 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 555 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190
[2023-12-23 11:02:32,269 INFO  L413           NwaCegarLoop]: 74 mSDtfsCounter, 101 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2023-12-23 11:02:32,270 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 328 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2023-12-23 11:02:32,270 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 148 states.
[2023-12-23 11:02:32,291 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 137.
[2023-12-23 11:02:32,291 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 137 states, 88 states have (on average 1.1704545454545454) internal successors, (103), 89 states have internal predecessors, (103), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38)
[2023-12-23 11:02:32,293 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 179 transitions.
[2023-12-23 11:02:32,293 INFO  L78                 Accepts]: Start accepts. Automaton has 137 states and 179 transitions. Word has length 189
[2023-12-23 11:02:32,293 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-23 11:02:32,294 INFO  L495      AbstractCegarLoop]: Abstraction has 137 states and 179 transitions.
[2023-12-23 11:02:32,295 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 21 states have (on average 5.0) internal successors, (105), 20 states have internal predecessors, (105), 7 states have call successors, (50), 7 states have call predecessors, (50), 12 states have return successors, (51), 7 states have call predecessors, (51), 7 states have call successors, (51)
[2023-12-23 11:02:32,295 INFO  L276                IsEmpty]: Start isEmpty. Operand 137 states and 179 transitions.
[2023-12-23 11:02:32,299 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 190
[2023-12-23 11:02:32,299 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-23 11:02:32,299 INFO  L195           NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:02:32,310 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2023-12-23 11:02:32,516 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2023-12-23 11:02:32,711 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-23 11:02:32,711 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-23 11:02:32,712 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-23 11:02:32,712 INFO  L85        PathProgramCache]: Analyzing trace with hash 226234296, now seen corresponding path program 1 times
[2023-12-23 11:02:32,713 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-23 11:02:32,713 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594775163]
[2023-12-23 11:02:32,713 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-23 11:02:32,713 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 11:02:32,713 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-23 11:02:32,714 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-23 11:02:32,716 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-23 11:02:32,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-23 11:02:32,930 INFO  L262         TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-23 11:02:32,947 INFO  L285         TraceCheckSpWp]: Computing forward predicates...